| vicious_fishes | 12-12-2015 07:20 AM |
[quote=aTarasZ;44027429]It's been a long time since I've seen it. But the point was in fact that having the cover on had adverse effects on the aerodynamics as it created turbulence. Having the cover off at "higher" speeds created a vortex within the bed causing air that was passing over the cab to deflect straight over and never"touch" the bed/tailgate allowing better aerodynamics.
Keep in mind a lot of this is heavily dependent on the specifics of every make and model of car, truck, whatever. The overarching picture is that closing off "pockets" ( or in this case parachutes) does NOT necessarily improve aerodynamics[/quote]
Perhaps not necessarily, but I reckon it's more often the case than not.
Here in 'straya we have an entire ute (pickup truck to you yanks) racing series and they ALL run covers ;)
Keep in mind a lot of this is heavily dependent on the specifics of every make and model of car, truck, whatever. The overarching picture is that closing off "pockets" ( or in this case parachutes) does NOT necessarily improve aerodynamics[/quote]
Perhaps not necessarily, but I reckon it's more often the case than not.
Here in 'straya we have an entire ute (pickup truck to you yanks) racing series and they ALL run covers ;)
| tomferd | 12-12-2015 09:57 AM |
The mythbusters episode everyone is referring to was tailgate up verses tailgate down/removed. Tailgate up proved better aerodynamically for the same reason I explained. A cover will generally work better than a tailgate because it does the same thing as a wake vortex but without using the energy needed to keep a wake vortex spinning.
| aTarasZ | 12-12-2015 04:13 PM |
Makes sense. Thanks for clearing that up.
| funk32 | 03-19-2016 09:31 AM |
installed the Wasp CF trunk lid, weighs in at 4lbs. Saving ~40lbs off the back. It is held in by 4 mini quik latches.
[url=https://flic.kr/p/EshQt5][img]https://farm2.staticflickr.com/1587/25239070914_cc59e54dae_c.jpg[/img][/url][url=https://flic.kr/p/EshQt5]20160317_140621[/url] by [url=https:[email�protected]/]David[/url], on Flickr
[url=https://flic.kr/p/EshQt5][img]https://farm2.staticflickr.com/1587/25239070914_cc59e54dae_c.jpg[/img][/url][url=https://flic.kr/p/EshQt5]20160317_140621[/url] by [url=https:[email�protected]/]David[/url], on Flickr
| Scuby04STi | 03-19-2016 10:52 AM |
Nice!!! That's a good chunk to lose!!!
I spaced posting it here but I finished up my trunk floor and my front bumper beam/radiator support:
[url=https://flic.kr/p/FdSqEE][img]https://farm2.staticflickr.com/1654/25743550482_8816ed024e_k.jpg[/img][/url][url=https://flic.kr/p/FdSqEE]IMG_20160316_175538866[/url] by [url=https:[email�protected]/]Bret Stevens[/url], on Flickr
[url=https://flic.kr/p/Fpyb3B][img]https://farm2.staticflickr.com/1500/25864470735_d5a6cdd160_k.jpg[/img][/url][url=https://flic.kr/p/Fpyb3B]IMG_20160316_175551915[/url] by [url=https:[email�protected]/]Bret Stevens[/url], on Flickr
[url=https://flic.kr/p/ErQzzE][img]https://farm2.staticflickr.com/1493/25233947924_cd9c126801_k.jpg[/img][/url][url=https://flic.kr/p/ErQzzE]IMG_20160316_201146855[/url] by [url=https:[email�protected]/]Bret Stevens[/url], on Flickr
Should be having a relatively light catback made in a few weeks if they can accommodate me before I need to be ready for my first event. Also I tossed the rear bumper on and looked things over, not stressing the bumper hang at this point. Highly doubt it would be an issue but a few hot laps hitting 150+ will tell the tale on that one for sure, if it's an issue I'll build a diffuser.
I spaced posting it here but I finished up my trunk floor and my front bumper beam/radiator support:
[url=https://flic.kr/p/FdSqEE][img]https://farm2.staticflickr.com/1654/25743550482_8816ed024e_k.jpg[/img][/url][url=https://flic.kr/p/FdSqEE]IMG_20160316_175538866[/url] by [url=https:[email�protected]/]Bret Stevens[/url], on Flickr
[url=https://flic.kr/p/Fpyb3B][img]https://farm2.staticflickr.com/1500/25864470735_d5a6cdd160_k.jpg[/img][/url][url=https://flic.kr/p/Fpyb3B]IMG_20160316_175551915[/url] by [url=https:[email�protected]/]Bret Stevens[/url], on Flickr
[url=https://flic.kr/p/ErQzzE][img]https://farm2.staticflickr.com/1493/25233947924_cd9c126801_k.jpg[/img][/url][url=https://flic.kr/p/ErQzzE]IMG_20160316_201146855[/url] by [url=https:[email�protected]/]Bret Stevens[/url], on Flickr
Should be having a relatively light catback made in a few weeks if they can accommodate me before I need to be ready for my first event. Also I tossed the rear bumper on and looked things over, not stressing the bumper hang at this point. Highly doubt it would be an issue but a few hot laps hitting 150+ will tell the tale on that one for sure, if it's an issue I'll build a diffuser.
| rockthebox50 | 03-19-2016 12:25 PM |
[quote=funk32;44269454]installed the Wasp CF trunk lid, weighs in at 4lbs. Saving ~40lbs off the back. It is held in by 4 mini quik latches.
[url=https://flic.kr/p/EshQt5][img]https://farm2.staticflickr.com/1587/25239070914_cc59e54dae_c.jpg[/img][/url][url=https://flic.kr/p/EshQt5]20160317_140621[/url] by [url=https:[email�protected]/]David[/url], on Flickr[/quote]
Wow fitment looks perfect, so the trunk isn't installed to the hinges that spring open, you just lift the whole trunk out?
[url=https://flic.kr/p/EshQt5][img]https://farm2.staticflickr.com/1587/25239070914_cc59e54dae_c.jpg[/img][/url][url=https://flic.kr/p/EshQt5]20160317_140621[/url] by [url=https:[email�protected]/]David[/url], on Flickr[/quote]
Wow fitment looks perfect, so the trunk isn't installed to the hinges that spring open, you just lift the whole trunk out?
| funk32 | 03-19-2016 12:28 PM |
that is correct, hinges/latche/springs all gone. Just the lid held in by those small latches, that total weigh less then the oem latch lol.
| Str8Gone | 03-19-2016 01:12 PM |
^where'd you get those latches??
| funk32 | 03-19-2016 01:13 PM |
[url]http://www.quik-latch.com/[/url]
| bue car | 03-19-2016 02:27 PM |
You have to realize the fitment it much better as well because he put the trunk on right and did the latches, versus lining up the holes on the trunk arms and that's that.
I am not talking about the quality of the product here, just the fact that using pins allows you to put the trunk just where you want it so it's perfect.
:)
Still a sexy rear end
I am not talking about the quality of the product here, just the fact that using pins allows you to put the trunk just where you want it so it's perfect.
:)
Still a sexy rear end
| Steve Theodore | 03-20-2016 05:24 PM |
Wow, that's some great weight reduction! Bravo! :)
| rex n effect | 04-15-2016 09:59 PM |
Did anybody mention losing a windshield wiper? I don't see the passenger side wiper doing a whole lot for me... that's gotta weigh about half a pound, no?
| vicious_fishes | 04-16-2016 03:41 AM |
I believe this thread is about more practical measures... but yes, race cars lose the passenger's side wiper
| rex n effect | 04-18-2016 09:47 PM |
[quote=vicious_fishes;44333780]I believe this thread is about more practical measures... but yes, race cars lose the passenger's side wiper[/quote]
Seems more practical than cutting sheet metal out of the car... or taking out airbags. I've been taking out a lot of things listed in this thread that I don't really notice much after they're gone. I probably wouldn't notice much after that extra wiper was gone. Probably one of the last easy things to go, though. GBODs probably next.
Seems more practical than cutting sheet metal out of the car... or taking out airbags. I've been taking out a lot of things listed in this thread that I don't really notice much after they're gone. I probably wouldn't notice much after that extra wiper was gone. Probably one of the last easy things to go, though. GBODs probably next.
| vicious_fishes | 04-18-2016 09:53 PM |
Great, another moron. Hurrr take a dump before you drive that'll make more difference.
1kg or whatever on its own does nothing. But 10 places that save 1kg, 10 places that save 5kg, 4 places that save 10-15kg, 1-2 places that save 20kg... all of a "sudden" over 10% of the weight of the car is gone.
1kg or whatever on its own does nothing. But 10 places that save 1kg, 10 places that save 5kg, 4 places that save 10-15kg, 1-2 places that save 20kg... all of a "sudden" over 10% of the weight of the car is gone.
| Scuby04STi | 04-18-2016 11:22 PM |
[quote=vicious_fishes;44338282]Great, another moron. Hurrr take a dump before you drive that'll make more difference.
1kg or whatever on its own does nothing. But 10 places that save 1kg, 10 places that save 5kg, 4 places that save 10-15kg, 1-2 places that save 20kg... all of a "sudden" over 10% of the weight of the car is gone.[/quote]
I love it, my buddy said the same thing about me cutting into my 12 year old mass production car. What am I going to hurt it's value or something? Lol cute.
But in all seriousness little things do add up, a spare tire storage area on a car the jack won't even fit under makes perfect functional sense to cut out for weight. The wiper for 50% of my front viewing area not so much in comparison.
The goal here is to post as much information about losing weight as possible, logical or not. From there people can sit back and make their own list to do and at least understand the rough end number from the information.
Also if you are removing weight and don't notice a difference you likely aren't pushing the car or doing so correctly. I did an autocross the otherday, all my times where with in a second (with passenger) tossed the 180lbs out and boom 3 seconds faster on both of the following runs.
1kg or whatever on its own does nothing. But 10 places that save 1kg, 10 places that save 5kg, 4 places that save 10-15kg, 1-2 places that save 20kg... all of a "sudden" over 10% of the weight of the car is gone.[/quote]
I love it, my buddy said the same thing about me cutting into my 12 year old mass production car. What am I going to hurt it's value or something? Lol cute.
But in all seriousness little things do add up, a spare tire storage area on a car the jack won't even fit under makes perfect functional sense to cut out for weight. The wiper for 50% of my front viewing area not so much in comparison.
The goal here is to post as much information about losing weight as possible, logical or not. From there people can sit back and make their own list to do and at least understand the rough end number from the information.
Also if you are removing weight and don't notice a difference you likely aren't pushing the car or doing so correctly. I did an autocross the otherday, all my times where with in a second (with passenger) tossed the 180lbs out and boom 3 seconds faster on both of the following runs.
| vicious_fishes | 04-19-2016 01:09 AM |
Yep. In my case it was 20kg with an exhaust, 12kg for the bumper beam, 10kg for the hood, 20kg stripping the trunk, 3kg under seat bar, 12kg sound deadening, 3kg for the injector covers & diff cover, 12kg for a driveshaft, flywheel & crank pulley, 1.5kg to remove a radiator fan, 10kg for a battery... throw a can of slime in instead of the spare and zero practicality lost for nearly 100kg removed. You yanks lose even more ditching the rear bumper beam
| Scuby04STi | 04-19-2016 09:24 AM |
[quote=vicious_fishes;44338445]Yep. In my case it was 20kg with an exhaust, 12kg for the bumper beam, 10kg for the hood, 20kg stripping the trunk, 3kg under seat bar, 12kg sound deadening, 3kg for the injector covers & diff cover, 12kg for a driveshaft, flywheel & crank pulley, 1.5kg to remove a radiator fan, 10kg for a battery... throw a can of slime in instead of the spare and zero practicality lost for nearly 100kg removed. You yanks lose even more ditching the rear bumper beam[/quote]
Yeah my rear beam is long gone. You guys don't have the front U brace do you? That was a chunk up front I was happy to ditch. It's amazing what things add up to.
Yeah my rear beam is long gone. You guys don't have the front U brace do you? That was a chunk up front I was happy to ditch. It's amazing what things add up to.
| vicious_fishes | 04-19-2016 09:36 AM |
Oh yes the u subframe brace. I knew i forgot something. That's another 12. And the intake snorkus & front inlet are another 1.5.
| gtasti | 04-19-2016 04:13 PM |
What's the weight of the spare tire tub
Still debating cutting that out
I just removed all the evap stuff that was good for few lbs
Still debating cutting that out
I just removed all the evap stuff that was good for few lbs
| vicious_fishes | 04-19-2016 04:16 PM |
Tire tub not really worth it imo. Unless you install a diffuser, the rear bumper becomes a great big parachute
| Titter | 04-19-2016 04:21 PM |
Weight Reduction
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every mechanic/technician/rally driver i ask in person tells me the front u frame adds structural rigidity, yet everyone on the internet says the opposite.
not flaming... just wondering if anyone has any real proof. i cant seem to find any. just people saying it feels better. can anyone prove this doesnt affect torsional articulation? or side to side movement during extreme lateral G's?
not flaming... just wondering if anyone has any real proof. i cant seem to find any. just people saying it feels better. can anyone prove this doesnt affect torsional articulation? or side to side movement during extreme lateral G's?
| vicious_fishes | 04-19-2016 04:23 PM |
It doesn't. The spec c doesn't even come with it. It's a crash protection item, nothing more.
| Titter | 04-19-2016 04:28 PM |
just because a performance model doesnt come with it, doesnt mean it doesnt add any rigidity. im wondering if there is any real data. prefferably in newton meters
| vicious_fishes | 04-19-2016 04:29 PM |
If it was beneficial, the PERFORMANCE MODEL would come with it.
| Titter | 04-19-2016 04:37 PM |
Weight Reduction
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again, thats not real data. thats just linking two probabilities. the S204 (a performance model) does have its own lateral brace of a different design. technically its a damper but still it connects the two sides of the chassis to add torsional stiffness. which is what the u-frame also does. and it mounts in some of the same holes the u frame mounts to.
also im not saying its there for performance and bracing. i know its only for certain markets, for whatever the reason. im just asking if anyone has real data, on paper, saying that it adds zero stiffness to the chassis.
also im not saying its there for performance and bracing. i know its only for certain markets, for whatever the reason. im just asking if anyone has real data, on paper, saying that it adds zero stiffness to the chassis.
| vicious_fishes | 04-19-2016 05:23 PM |
[quote=Titter;44340072]again, thats not real data. thats just linking two probabilities. [/quote]
If the performance model coming without it doesn't convince you, then I don't know what else to say.
If the performance model coming without it doesn't convince you, then I don't know what else to say.
| Scuby04STi | 04-19-2016 07:46 PM |
[quote=gtasti;44340008]What's the weight of the spare tire tub
Still debating cutting that out
I just removed all the evap stuff that was good for few lbs[/quote]
14.6lbs next time look back it was only a page away. :huh:
As for the "your bumper will turn I to a parachute" theory, that is something I can confirm one way or the other very soon. I'll put my money on it having zero noticeable drag over stock. But a noticeable difference with/without a diffuser after sheeting it.
Then that U brace debate is pretty simple to me. It adds rigidity, that's about as clear as day seeing it's a chunk of steel attaching the two sides of the car together. However it's adding it in a very inefficient way, as in it adds very little rigidity for its weight. I could weld up a bar that adds more rigidity for 1/3 the weight. The reason is it was designed for crash test (head-on) not as critical literal structure point.
Still debating cutting that out
I just removed all the evap stuff that was good for few lbs[/quote]
14.6lbs next time look back it was only a page away. :huh:
As for the "your bumper will turn I to a parachute" theory, that is something I can confirm one way or the other very soon. I'll put my money on it having zero noticeable drag over stock. But a noticeable difference with/without a diffuser after sheeting it.
Then that U brace debate is pretty simple to me. It adds rigidity, that's about as clear as day seeing it's a chunk of steel attaching the two sides of the car together. However it's adding it in a very inefficient way, as in it adds very little rigidity for its weight. I could weld up a bar that adds more rigidity for 1/3 the weight. The reason is it was designed for crash test (head-on) not as critical literal structure point.
| rex n effect | 04-19-2016 10:53 PM |
[quote=Scuby04STi;44338364]
But in all seriousness little things do add up, ...
The wiper for 50% of my front viewing area ...
The goal here is to post as much information about losing weight as possible, logical or not...
Also if you are removing weight and don't notice a difference ...[/quote]
Agree on all points except that the removal of passenger wiper would affect 50% of viewing area. Maybe 20% of the upper right side of the windshield wouldn't get swept. I don't think I 'use' this area from the drivers seat. Again, this is probably something I'll save for when a couple bigger things are gone like GBODs and sound mat under foot. I don't 'miss' the things that are gone and, interior-wise, it looks the exact same still. In acceleration and handling, I notice a decent difference versus stock. Bit by bit it has added up to about 150lbs of stuff removed. I can certainly feel when I have a passenger (esp acceleration & braking) and it reminds me that's what the car would be like always if it weren't for threads like this.
This thread is great.
But in all seriousness little things do add up, ...
The wiper for 50% of my front viewing area ...
The goal here is to post as much information about losing weight as possible, logical or not...
Also if you are removing weight and don't notice a difference ...[/quote]
Agree on all points except that the removal of passenger wiper would affect 50% of viewing area. Maybe 20% of the upper right side of the windshield wouldn't get swept. I don't think I 'use' this area from the drivers seat. Again, this is probably something I'll save for when a couple bigger things are gone like GBODs and sound mat under foot. I don't 'miss' the things that are gone and, interior-wise, it looks the exact same still. In acceleration and handling, I notice a decent difference versus stock. Bit by bit it has added up to about 150lbs of stuff removed. I can certainly feel when I have a passenger (esp acceleration & braking) and it reminds me that's what the car would be like always if it weren't for threads like this.
This thread is great.
| gtasti | 04-20-2016 08:05 AM |
[quote=Scuby04STi;44340467]14.6lbs next time look back it was only a page away. :huh:
As for the "your bumper will turn I to a parachute" theory, that is something I can confirm one way or the other very soon. I'll put my money on it having zero noticeable drag over stock. But a noticeable difference with/without a diffuser after sheeting it.
Then that U brace debate is pretty simple to me. It adds rigidity, that's about as clear as day seeing it's a chunk of steel attaching the two sides of the car together. However it's adding it in a very inefficient way, as in it adds very little rigidity for its weight. I could weld up a bar that adds more rigidity for 1/3 the weight. The reason is it was designed for crash test (head-on) not as critical literal structure point.[/quote]
Almost 15lbs that seems worth it to fish tail out of turns more :)
I'll have to weight the piece of aluminum and see the difference
If your so worried for the u brace buy an Oswald brace
As for the "your bumper will turn I to a parachute" theory, that is something I can confirm one way or the other very soon. I'll put my money on it having zero noticeable drag over stock. But a noticeable difference with/without a diffuser after sheeting it.
Then that U brace debate is pretty simple to me. It adds rigidity, that's about as clear as day seeing it's a chunk of steel attaching the two sides of the car together. However it's adding it in a very inefficient way, as in it adds very little rigidity for its weight. I could weld up a bar that adds more rigidity for 1/3 the weight. The reason is it was designed for crash test (head-on) not as critical literal structure point.[/quote]
Almost 15lbs that seems worth it to fish tail out of turns more :)
I'll have to weight the piece of aluminum and see the difference
If your so worried for the u brace buy an Oswald brace
| stealth_ninja | 04-24-2016 02:41 AM |
after over 2 weeks of reading.... First of all I want to say Feck the haters that miscellaneously pop up almost every other page and HUGE shout out to vicious, bue, and c68cadi!!!!!! You guys converted me from a weight adder to a mostly weight remover! I can't wait to get back off this deployment and start chopping the basics off. And I am already in contact with TSS to notify me when they start producing the subframes for my body style. THANK YOU ALL very much for creating a new addiction (most of which will be free.99)!!!
| Steve Theodore | 04-24-2016 05:55 PM |
Bravo sir, I'm always pleased to see others catch the 'weight weenie' bug. :)
| rex n effect | 04-26-2016 10:40 PM |
how about a lot of the bracketry / covers around the ECU?
I know the ecu is a critical part, but the harness seems pretty rugged and it's got like 6lbs of metal plates and brackets around it. Is carpet and a floor mat not enough ?
Had that already been listed? I don't recall it.
I know the ecu is a critical part, but the harness seems pretty rugged and it's got like 6lbs of metal plates and brackets around it. Is carpet and a floor mat not enough ?
Had that already been listed? I don't recall it.
| Scuby04STi | 04-26-2016 11:01 PM |
[quote=rex n effect;44357603]how about a lot of the bracketry / covers around the ECU?
I know the ecu is a critical part, but the harness seems pretty rugged and it's got like 6lbs of metal plates and brackets around it. Is carpet and a floor mat not enough ?
Had that already been listed? I don't recall it.[/quote]
Been covered, I did mine at least. Moved it in the process but don't see why it would have had an Issue in the stock location with aware passengers.
I know the ecu is a critical part, but the harness seems pretty rugged and it's got like 6lbs of metal plates and brackets around it. Is carpet and a floor mat not enough ?
Had that already been listed? I don't recall it.[/quote]
Been covered, I did mine at least. Moved it in the process but don't see why it would have had an Issue in the stock location with aware passengers.
| Scuby04STi | 04-26-2016 11:02 PM |
Also it seems like a lot but this is a thread well worth the start to finish read.
| stealth_ninja | 04-27-2016 03:20 AM |
Does anybody happen to know what a 08-14 premium seat weighs in at?
| stealth_ninja | 04-27-2016 03:23 AM |
I would pull mine and weigh them myself, but I can't since I am deployed...
| orhan22 | 04-29-2016 01:41 AM |
take out spare tyre use half fuel remove seats lmao
| stealth_ninja | 04-29-2016 04:32 AM |
yet again
�
�
[quote=orhan22;44363449]take out spare tyre use half fuel remove seats lmao[/quote]
Dear troll please either read the fact most of this has already been trolled before and we already covered the spar tire thing, as long as you have means to get home Triple A. Removing seats is obviously only realistic for track cars or track days. And to me half fuel should only be utilized on track days as well.
On another note, is the "U" brace on all year models? If I have one on my 13 it will be removed as soon as I get back stateside.
Dear troll please either read the fact most of this has already been trolled before and we already covered the spar tire thing, as long as you have means to get home Triple A. Removing seats is obviously only realistic for track cars or track days. And to me half fuel should only be utilized on track days as well.
On another note, is the "U" brace on all year models? If I have one on my 13 it will be removed as soon as I get back stateside.
| DamnThatRevLimiter | 05-03-2016 01:40 PM |
U brace
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�
I have owned my 2002 Wrx since 2007 and up until a year ago had the u brace on , when I removed it I could not feel a difference. Most of my driving is on the street so I know it's not data , but it is still something to consider.
And the U-brace on my car did weigh 25 pounds with a ziplock bag and the bolts.
Let the people that troll be dumb , chances are their car is slower than yours.
Here are some interesting videos about weight reduction
https://m.youtube.com/watch?v=SCpaTM0rKus
And tests
https://m.youtube.com/watch?v=aAZ9H0fe7dg
And the U-brace on my car did weigh 25 pounds with a ziplock bag and the bolts.
Let the people that troll be dumb , chances are their car is slower than yours.
Here are some interesting videos about weight reduction
https://m.youtube.com/watch?v=SCpaTM0rKus
And tests
https://m.youtube.com/watch?v=aAZ9H0fe7dg
| JDwhiteWRX | 05-03-2016 07:41 PM |
Does anyone know the weight of the entire A/C system including the heater box? also the weight of the 2 front airbags and control module?
My car is currently at 1255kg (2766lbs) with a 4 point cage but I'm looking at going to the next level.
My car is currently at 1255kg (2766lbs) with a 4 point cage but I'm looking at going to the next level.
| Steve Theodore | 05-03-2016 09:36 PM |
Not that this particular horse needs any more beating, but I was speaking to a mechanical engineer today who owns a 2006 STi specifically about the U-brace. He basically said that he would never recommend removing it, and doesn't even recommend replacing it with an aftermarket part.
The same engineer has no issues with removing the bumper beams and countless other things, but said that the sub-frame is not something you should mess with due to the way it actually mounts to the car, which is different than how the aftermarket ones do.
I asked him in the context that I wanted to be open-minded about removing mine, based on posts and threads exactly like this. So, just take that as another data point about the stock sub-frame, like it or leave it.
Thanks for the videos bud! :)
[quote=DamnThatRevLimiter;44372985]I have owned my 2002 Wrx since 2007 and up until a year ago had the u brace on , when I removed it I could not feel a difference. Most of my driving is on the street so I know it's not data , but it is still something to consider.
And the U-brace on my car did weigh 25 pounds with a ziplock bag and the bolts.
Let the people that troll be dumb , chances are their car is slower than yours.
Here are some interesting videos about weight reduction
[url]https://m.youtube.com/watch?v=SCpaTM0rKus[/url]
And tests
[url]https://m.youtube.com/watch?v=aAZ9H0fe7dg[/url][/quote]
The same engineer has no issues with removing the bumper beams and countless other things, but said that the sub-frame is not something you should mess with due to the way it actually mounts to the car, which is different than how the aftermarket ones do.
I asked him in the context that I wanted to be open-minded about removing mine, based on posts and threads exactly like this. So, just take that as another data point about the stock sub-frame, like it or leave it.
Thanks for the videos bud! :)
[quote=DamnThatRevLimiter;44372985]I have owned my 2002 Wrx since 2007 and up until a year ago had the u brace on , when I removed it I could not feel a difference. Most of my driving is on the street so I know it's not data , but it is still something to consider.
And the U-brace on my car did weigh 25 pounds with a ziplock bag and the bolts.
Let the people that troll be dumb , chances are their car is slower than yours.
Here are some interesting videos about weight reduction
[url]https://m.youtube.com/watch?v=SCpaTM0rKus[/url]
And tests
[url]https://m.youtube.com/watch?v=aAZ9H0fe7dg[/url][/quote]
| DamnThatRevLimiter | 05-04-2016 09:37 AM |
[quote=Steve Theodore;44374414]Not that this particular horse needs any more beating, but I was speaking to a mechanical engineer today who owns a 2006 STi specifically about the U-brace. He basically said that he would never recommend removing it, and doesn't even recommend replacing it with an aftermarket part.
The same engineer has no issues with removing the bumper beams and countless other things, but said that the sub-frame is not something you should mess with due to the way it actually mounts to the car, which is different than how the aftermarket ones do.
I asked him in the context that I wanted to be open-minded about removing mine, based on posts and threads exactly like this. So, just take that as another data point about the stock sub-frame, like it or leave it.
Thanks for the videos bud! :)[/quote]
No problem, that is interesting what he said , makes me wonder about the more detailed reasons why that would be the case ,thanks for the perspective
The same engineer has no issues with removing the bumper beams and countless other things, but said that the sub-frame is not something you should mess with due to the way it actually mounts to the car, which is different than how the aftermarket ones do.
I asked him in the context that I wanted to be open-minded about removing mine, based on posts and threads exactly like this. So, just take that as another data point about the stock sub-frame, like it or leave it.
Thanks for the videos bud! :)[/quote]
No problem, that is interesting what he said , makes me wonder about the more detailed reasons why that would be the case ,thanks for the perspective
| DamnThatRevLimiter | 05-04-2016 09:45 AM |
68cadillac weighed his
[quote=68Cadillac;38235922][IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4835-1.jpg[/IMG]
Steering Wheel SRS Airbag [COLOR="Red"]0.983 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4826-1.jpg[/IMG]
Dash SRS Airbag [COLOR="Red"]2.974 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4842-1.jpg[/IMG]
Seat Airbags x2 [COLOR="Red"]2.164 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4844-1.jpg[/IMG]
SRS Control Module [COLOR="Red"]0.669 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4840-1.jpg[/IMG]
SRS underseat wiring brackets [COLOR="Red"]0.171 kg[/COLOR] [SIZE="1"]Second bracket sits the left of the scale.[/SIZE]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4888.jpg[/IMG]
SRS Front Frame Rail G-meters [COLOR="Red"]0.697 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4904-1.jpg[/IMG]
SRS B-Pillar G-Meters [COLOR="Red"]0.434 kg[/COLOR]
Total SRS weight [COLOR="Red"][B]8.092 kg[/B][/COLOR] excluding wiring.[/quote]
Post # 1584 and page 64 depending on your settings.
If that doesn't work here is a link to the post about airbag weights
http://forums.nasioc.com/forums/showpost.php?p=38235922&postcount=1584
[quote=68Cadillac;38235922][IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4835-1.jpg[/IMG]
Steering Wheel SRS Airbag [COLOR="Red"]0.983 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4826-1.jpg[/IMG]
Dash SRS Airbag [COLOR="Red"]2.974 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4842-1.jpg[/IMG]
Seat Airbags x2 [COLOR="Red"]2.164 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4844-1.jpg[/IMG]
SRS Control Module [COLOR="Red"]0.669 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4840-1.jpg[/IMG]
SRS underseat wiring brackets [COLOR="Red"]0.171 kg[/COLOR] [SIZE="1"]Second bracket sits the left of the scale.[/SIZE]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4888.jpg[/IMG]
SRS Front Frame Rail G-meters [COLOR="Red"]0.697 kg[/COLOR]
[IMG]http://i162.photobucket.com/albums/t278/RasmusHansen/SubaruParts/IMG_4904-1.jpg[/IMG]
SRS B-Pillar G-Meters [COLOR="Red"]0.434 kg[/COLOR]
Total SRS weight [COLOR="Red"][B]8.092 kg[/B][/COLOR] excluding wiring.[/quote]
Post # 1584 and page 64 depending on your settings.
If that doesn't work here is a link to the post about airbag weights
http://forums.nasioc.com/forums/showpost.php?p=38235922&postcount=1584
| Scuby04STi | 05-04-2016 11:20 AM |
As for the a/c I have the engine bay side of things pulled and plan to do the heater and controller sometime soon. I'll post up a weight when I have everything out if it isn't addressed prior.
| Steve Theodore | 05-04-2016 04:32 PM |
Yeah, I apologize as I don't speak full 'mechanical engineer' and didn't want to be so rude as to make him explain it more than once for me. It had everything to do with the way it attaches though, versus the way the aftermarket ones do.
I've found that if all you do is read what is on the internet, it can lead you to a special place...since many of us somehow find an answer to our liking and then repeat it over and over again, pretending that now it must be true. I can tell you that the 2 people I have actually spoken with in person (one a mechanic, while under my Subaru, and the second a mechanical engineer that owns a 2006 STi and is converting it into a rally car) both said not to touch it, even if the purpose is to remove it for an aftermarket piece.
That doesn't mean we shouldn't make up our own minds, I think every choice and path are truly up to us as enthusiasts. I'm only here to present some findings that kind of bummed me out, as I'm a weight weenie and would love to free myself of that 25 pounds desperately.
Another interesting observation is the same guy had his stock STi seats out of the car and it was my first time I had ever been able to pick one up. I was shocked how heavy they are, much more so than I would have expected. So, a good performance aftermarket seat is going to give you a lower seating position and shave some good weight out of the car to boot. Good stuff as I continue to trim fat out of my STi! :)
[quote=DamnThatRevLimiter;44375162]No problem, that is interesting what he said , makes me wonder about the more detailed reasons why that would be the case ,thanks for the perspective[/quote]
I've found that if all you do is read what is on the internet, it can lead you to a special place...since many of us somehow find an answer to our liking and then repeat it over and over again, pretending that now it must be true. I can tell you that the 2 people I have actually spoken with in person (one a mechanic, while under my Subaru, and the second a mechanical engineer that owns a 2006 STi and is converting it into a rally car) both said not to touch it, even if the purpose is to remove it for an aftermarket piece.
That doesn't mean we shouldn't make up our own minds, I think every choice and path are truly up to us as enthusiasts. I'm only here to present some findings that kind of bummed me out, as I'm a weight weenie and would love to free myself of that 25 pounds desperately.
Another interesting observation is the same guy had his stock STi seats out of the car and it was my first time I had ever been able to pick one up. I was shocked how heavy they are, much more so than I would have expected. So, a good performance aftermarket seat is going to give you a lower seating position and shave some good weight out of the car to boot. Good stuff as I continue to trim fat out of my STi! :)
[quote=DamnThatRevLimiter;44375162]No problem, that is interesting what he said , makes me wonder about the more detailed reasons why that would be the case ,thanks for the perspective[/quote]
| DamnThatRevLimiter | 05-04-2016 04:50 PM |
Speaking of seats . factory ones have airbags in them , has anyone tried basically gutting them and seeing what the difference is ? I was talking with a guy at my work who can weld aluminum and we were throwing the idea around of making an aluminum version of our steel seat frames , I think it's more of a pipe dream for me but others might try it.
| Scuby04STi | 05-04-2016 05:32 PM |
[quote=DamnThatRevLimiter;44376637]Speaking of seats . factory ones have airbags in them , has anyone tried basically gutting them and seeing what the difference is ? I was talking with a guy at my work who can weld aluminum and we were throwing the idea around of making an aluminum version of our steel seat frames , I think it's more of a pipe dream for me but others might try it.[/quote]
I have not seen someone go to those lengths to keep the OEM seat when trying to drop weight. Honestly the OEM seat is a joke performance wise, a good aftermarket seat will hold you in much better (good side support). Also if dropping weight is the goal I don't see how you could get the OEM seat down to even double the amount my fixed back MOMO's weigh in at.
I have not seen someone go to those lengths to keep the OEM seat when trying to drop weight. Honestly the OEM seat is a joke performance wise, a good aftermarket seat will hold you in much better (good side support). Also if dropping weight is the goal I don't see how you could get the OEM seat down to even double the amount my fixed back MOMO's weigh in at.
| Steve Theodore | 05-04-2016 05:46 PM |
I agree wholeheartedly with Scuby04STi, in the sense that the factory seats just aren't worth the effort to modify at all. You can improve on pretty much everything that is bad about them with a good aftermarket seat, and they will likely be quite a bit lighter too.
| JDwhiteWRX | 05-04-2016 07:36 PM |
In Australia we didn't get airbags in the seats until MY06. I have a pair of Brides in mine anyway.
[IMG]http://i220.photobucket.com/albums/dd209/sivadleoj/P1010036-1.jpg[/IMG]
[IMG]http://i220.photobucket.com/albums/dd209/sivadleoj/P1010036-1.jpg[/IMG]
| bue car | 05-05-2016 01:03 AM |
The factory U brace is meant to submarine the motor and transmission downwards in a front end collision. Aftermarket bars tie the car together and cross along the bottom, preventing the motor and transmission from pushing downwards and away from you in the cabin. It also squares off the frame in front to prevent a major collapse.
That's the engineering standpoint and [I]A[/I] reason not to remove it.
That's the engineering standpoint and [I]A[/I] reason not to remove it.
| vicious_fishes | 05-05-2016 09:12 AM |
JD - your car is now illegal to use on the street in aus man. if it came with side airbags, removing them = defectable car, and CTP won't pay your medical bills if you have an accident.
| DamnThatRevLimiter | 05-05-2016 11:13 AM |
[quote=Scuby04STi;44376772]I have not seen someone go to those lengths to keep the OEM seat when trying to drop weight. Honestly the OEM seat is a joke performance wise, a good aftermarket seat will hold you in much better (good side support). Also if dropping weight is the goal I don't see how you could get the OEM seat down to even double the amount my fixed back MOMO's weigh in at.[/quote]
I agree aftermarket seats is a better option. I mentioned the seat gutting because it is free to do . I am currently saving for some fixed back seats.
I found some more videos about weight
https://m.youtube.com/watch?v=M0I5d8Z41N0
Same video different units for people that like it.
https://m.youtube.com/watch?v=9cUIhVEJEaM
Enjoy
I agree aftermarket seats is a better option. I mentioned the seat gutting because it is free to do . I am currently saving for some fixed back seats.
I found some more videos about weight
https://m.youtube.com/watch?v=M0I5d8Z41N0
Same video different units for people that like it.
https://m.youtube.com/watch?v=9cUIhVEJEaM
Enjoy
| JDwhiteWRX | 05-05-2016 07:32 PM |
[quote=vicious_fishes;44377984]JD - your car is now illegal to use on the street in aus man. if it came with side airbags, removing them = defectable car, and CTP won't pay your medical bills if you have an accident.[/quote]
Pretty much every mod on my car is illegal but I'm happy enough to take responsibility for myself. This is no daily driver, this is a car that should be towed to the track but I'm not willing to buy a tow car and trailer and find a place to store it so it is what it is.
Pretty much every mod on my car is illegal but I'm happy enough to take responsibility for myself. This is no daily driver, this is a car that should be towed to the track but I'm not willing to buy a tow car and trailer and find a place to store it so it is what it is.
| vicious_fishes | 05-05-2016 09:52 PM |
Gotcha. Might as well go the full hog and gut it then really. Weld the door skins in place, cut the boot out and then weld the bootlid on, all that jazz.
| JDwhiteWRX | 05-05-2016 10:18 PM |
[quote=vicious_fishes;44380053]Gotcha. Might as well go the full hog and gut it then really. Weld the door skins in place, cut the boot out and then weld the bootlid on, all that jazz.[/quote]
Yeah that was an old photo
[IMG]http://i220.photobucket.com/albums/dd209/sivadleoj/P1010033-3.jpg[/IMG]
Yeah that was an old photo
[IMG]http://i220.photobucket.com/albums/dd209/sivadleoj/P1010033-3.jpg[/IMG]
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