Thứ Sáu, 6 tháng 1, 2017

Has anyone tried to make their own Wind Splitter ? part 1

jason2004STI 08-31-2006 08:26 PM

Has anyone tried to make their own Wind Splitter ?
Hi all,

I'd like to make a DIY Wind Splitter (lower lip splitter not hood scoop splitter) similar to this...
[img]http://www.gnvmotorsports.com/catalog/images/parts/STI_front.jpg[/img]

I'm searching for any DIY threads, instructions or even a mention of someone that made their own... Everytime I search for splitter it comes up with threads about the one that goes in the scoop, not the lower lip... So I'm not getting very far ...

I'm sure I can find and cut something to make the splitter itself, but where can I find those 2 silver support rods, that look like they are used to adjust the angle of the lip / splitter. Any info you all can provide is greatly appreciated.

Thanks in advance!
Jason
jason2004STI 08-31-2006 10:06 PM

still nothing ...
Ok, I must have combed through at least 150+ pages of threads in my last hour or more of searches.. Various people who just got Splitter Lips, group buys, yea or nay polls, blah blah blah. Not one thread of someone who made their own...

I guess this just isn't as easy as I thought it looks, for a DIY. I figured a thick sheet of durable, inflexible plastic, cut it to fit, holes drilled to match factory locations, couple of nuts n bolts, should be a snap. Is there some tremendously difficult thing I'm missing about Splitter Lips. I would hope that someone, like me, is out there trying desperately to not spend $250 or more on a pre-fab splitter lip, instead opting to make their own... maybe not.. oh well, still searching :)

Jason

EDIT-NOTES:
Wind Splitter Support Turnbuckles: [url]http://www.cardomain.com/item/APPAB300011[/url]
Wind Splitter Support Rods: [url]http://www.aprperformance.com/index.php?option=com_content&task=view&id=83&Itemid=44[/url]
mountjonas 08-31-2006 10:22 PM

there's a guy on the protege forums, DaveB. i believe he made his own splitter out of some sort of metal. aluminum probably. but i don't know how i'd feel about driving around with a 6 foot blade in front of my car, unless he rolled the edge somehow.
hornyturbo 08-31-2006 10:25 PM

i seen places that sell just the aluminun brackets, just cant remember where. you can prob piece one together at a hobby store that sells stuff for planes
mountjonas 08-31-2006 10:29 PM

[url]http://www.msprotege.com/forum/showthread.php?t=25074&highlight=splitter[/url]

it's for a mazda, but same basic idead. he put rubber molding around the lip, also.
Jonnyfilmboy 08-31-2006 10:54 PM

There's a guy on here who made a "splitter" out of something he got from the Home Depot. It goes on the bottom of garage doors to seal the gap between the floor and the garage door. Like weatherstripping...

found it:
[url]http://forums.nasioc.com/forums/showthread.php?t=395394&highlight=home+depot+garage+door[/url]
STiShawn 09-01-2006 08:12 AM

Jonnyfilmboy, thats a front spoiler, a spliter is parallel to the ground plane.

You can use plexiglass for a cheap replaceable version. You may want to add some support stays to it to prevent it from damaging your bumper or drooping at speed. Now according to some reading the splitter chord "should" be twice the ride height dimension. But in our case thats too long, I'd drop a plumb bob down from the forward most portion of the bumper cover and have it follow that "shadow".
hyp36rmax 09-01-2006 02:33 PM

i'm looking at doing this as well, been on my mind for a couple years to go underneath my cusco spoiler. lets get something worked out although simliar ideas however mine will be a little larger to fit my front spoiler what do you say?
hyp36rmax 09-01-2006 02:39 PM

first and foremost i was looking at the mazda thread given here:

[URL="http://www.msprotege.com/forum/showthread.php?t=25074&highlight=splitter"]http://www.msprotege.com/forum/showthread.php?t=25074&highlight=splitter[/URL]

And i really like this ideas, however where to i purchase a 1/8" aluminum piece that large? my primary goal is to cover the whole bottom piece of my 2004 Cusco Front Spoiler (Has predrilled holes already) and extend this to the front differential junction points basically replacing the stock plastic underpanel.
BurtonCR 09-01-2006 04:58 PM

Want a cheap idea?

1) Take off the front bumper
2) Place bumper onto sheet of that brown thin synthetic particle board stuff you can get a home depot
3) Trace bumper and place it on the side
4) Draw out your desired splitter design
5) cut out, sand edges, paint with flat black spray paint
6) install

I helped a friend make one for his Kaminari lip after he broke his carbon one.
jason2004STI 09-01-2006 05:12 PM

[QUOTE=hornyturbo;15095326]i seen places that sell just the aluminun brackets, just cant remember where. you can prob piece one together at a hobby store that sells stuff for planes[/QUOTE]

That's a great idea! I went "window" shopping at my local Lowes/Home Depot... looking for materials to make the splitter out of and something that resembled those braces.. I'm trying to make it out of plastic, but that aluminum splitter from the link above looked nice too.. I bet it would take well to some primer and flat black spray paint or even better, black rhino-liner spray... hmmm raw materials, raw materials, raw materials...

Peace,
Jason
jason2004STI 09-01-2006 05:16 PM

[QUOTE=STiShawn;15098165]You can use plexiglass for a cheap replaceable version. You may want to add some support stays to it to prevent it from damaging your bumper or drooping at speed. Now according to some reading the splitter chord "should" be twice the ride height dimension. But in our case thats too long, I'd drop a plumb bob down from the forward most portion of the bumper cover and have it follow that "shadow".[/QUOTE]

Plexiglass is also an option, probably easier to source in the size we would need for a splitter... When you are speaking of chord's and ride height dimensions, where can I find and research this info too?

Thanks!
Jason
jason2004STI 09-01-2006 05:26 PM

[QUOTE=Jonnyfilmboy;15095594]There's a guy on here who made a "splitter" out of something he got from the Home Depot. It goes on the bottom of garage doors to seal the gap between the floor and the garage door. Like weatherstripping...

found it:
[url]http://forums.nasioc.com/forums/showthread.php?t=395394&highlight=home+depot+garage+door[/url][/QUOTE]

Thanks for the link, but that isn't a splitter, it's more of an air dam/lip guard. Nice find!

Jason
LathanM 09-01-2006 07:36 PM

[QUOTE=BurtonCR;15104488]Want a cheap idea?

1) Take off the front bumper
2) Place bumper onto sheet of that brown thin synthetic particle board stuff you can get a home depot
3) Trace bumper and place it on the side
4) Draw out your desired splitter design
5) cut out, sand edges, paint with flat black spray paint
6) install

I helped a friend make one for his Kaminari lip after he broke his carbon one.[/QUOTE]

I have seen a few of these at the track and they work great. If you are running one you are garenteed to hit something and chew up the leading edge. The thing practically has to scrap the ground for any benifit. Skip the particle board and go for plywood, it will be lighter and easier to work with.

The support rods are standard turn buckles. Aircraft and boating supply houses have them in all sizes and styles.
darroj 09-01-2006 07:57 PM

check for materials here: [url]www.mcmaster.com[/url] - they have just about everything and at pretty good prices. If someone does this, write it up :)
jason2004STI 09-01-2006 08:13 PM

[QUOTE=LathanM;15106184]The support rods are standard turn buckles. Aircraft and boating supply houses have them in all sizes and styles.[/QUOTE]

I thought they looked familiar. I just couldn't remember the term "turn buckle". Thanks for the info, I need to source my local boat/aircraft depot.

Jason
jason2004STI 09-01-2006 08:14 PM

[QUOTE=LathanM;15106184]The support rods are standard turn buckles. Aircraft and boating supply houses have them in all sizes and styles.[/QUOTE]

I thought they looked familiar. I just couldn't remember the term "turn buckle". Thanks for the info, I need to source my local boat/aircraft depot.

[QUOTE=darroj;15106361]check for materials here: [url]www.mcmaster.com[/url] - they have just about everything and at pretty good prices. If someone does this, write it up :)[/QUOTE]

I've been to that site, they are the ones that make the grill mesh material that matches our subi's.

Thanks to you both for the good info!

Jason
ThisizBrian 09-02-2006 04:05 AM

just buy one....
sperry7 09-02-2006 08:50 AM

Going fast with a diy lip doesn't seem to be incredibly smart to me...You have no idea how that is going to affect the aerodynamics of your car especially at high speeds. Even real ones are dangerous, my friends evo's carbon fiber wind splitter flew off at the track almost hitting my car. Not to mention ripped a hole in his bumper.
imma_stocker 09-12-2006 12:22 AM

do you need something like a smaller version of hood struts?
like off of a civic trunk at junkyards? just trying to throw out some ideas.
STiShawn 09-12-2006 08:36 AM

Jason, for a great read on automotive aerodynamics go find a book called:
Race Car Aerodynamics
By Robert Bentley Publishing
Or search the web for:
wing chord
and search here for ride height..or PM me your e-mail addy and I'll write something up for ya
jason2004STI 09-12-2006 05:06 PM

Nasioc is teh mostest bestest everest!!!
[QUOTE=ThisizBrian]just buy one....[/QUOTE]

Yea that would be the easiest solution, but none of the self satisfaction of a job well done the DIY route would provide.. Not to mention the added $250+ out of pocket, that I'm not too keen on parting with... :) Peace!

[QUOTE=sperry7]Going fast with a diy lip doesn't seem to be incredibly smart to me...You have no idea how that is going to affect the aerodynamics of your car especially at high speeds. Even real ones are dangerous, my friends evo's carbon fiber wind splitter flew off at the track almost hitting my car. Not to mention ripped a hole in his bumper.[/QUOTE]

Very true, I do not plan on any top-speed runs in the near future, this is my dailiy driver.. ~80MPH is as far as I push it these days (maybe 100mph on a rare occasion). Sorry to hear about your friend�s� mishap, That could have been much much worse, glad you both are ok... I'm pretty confident that with my day to day driving, at mild to moderate speeds this mod will not cause the aerodynamics of the car to change so radically as to alter it's drivability. But I will keep aerodynamics in mind the 1st few times I drive at highway speeds.. Probably need to do a few test runs and be sure to utilize all the connection points under the bumper I can.

[QUOTE=imma_stocker]do you need something like a smaller version of hood struts? like off of a civic trunk at junkyards? just trying to throw out some ideas.[/QUOTE]

I think the braces for this splitter are much smaller than any hood strut would be overall.. The turnbuckle idea was spot on, and the mcmaster.com site has plenty to choose from. :) Thanks for the ideas though!!

[QUOTE=STiShawn]Jason, for a great read on automotive aerodynamics go find a book called: Race Car Aerodynamics By Robert Bentley Publishing
Or search the web for: wing chord and search here for ride height..or PM me your e-mail addy and I'll write something up for ya[/QUOTE]

Thanks again for the info Shawn... searching google/amazon for that book and searching on that info as soon as I'm done with this post!

Thanks again to everyone's great info!!

Jason
sti04j 10-25-2006 11:28 PM

any luck making one yet? just wondering seems like a good idea though.
shamrock 05 05-01-2008 01:46 PM

I want to make this as well, keep us informed


What size would be best to get 8mm or 10mm
[url]http://www.aprperformance.com/index.php?option=com_content&task=view&id=83&Itemid=44[/url]


And could stainless steal be painted, say painting them balck, so they dont stand out as much. Someone said these could be bought at a boat supply store, do you think so???
shamrock 05 05-02-2008 01:30 PM

Does anyone know if there are any cheap wind splitters out there. The APR one is like $340. I am looking at $200 at most. Anyone have an idea
Ryan
metros 05-02-2008 02:16 PM

MachV has the APR one for $249.

Might want to look into that on fastwrx.com
caracer22 05-02-2008 02:24 PM

i got a raw sheet of carbon and bought the adj metal supports and made this for my celica a few years back...would have carried it around to the sides but the piece i got wasn't wide enough, BTW cutting CF sucks...

[IMG]http://memimage.cardomain.net/member_images/11/web/479000-479999/479550_30_full.jpg[/IMG]
[IMG]http://memimage.cardomain.com/member_images/11/web/479000-479999/479550_33_full.jpg[/IMG]
dangerousatom 05-02-2008 02:38 PM

I made my own, it was wicked strong too. I could bump a curb at 5 or so mph and the car would just stop. It was originally made just for that purpose after I cracked my lip the 2nd week after it was put on. Bolted to sub-frame and bumper beam, went all the way back to the front fender wells. It was made of aluminum

[img]http://img441.imageshack.us/img441/5406/p1010027rh9.jpg[/img]

[url]http://forums.nasioc.com/forums/showthread.php?t=1066218&highlight=swap[/url]

since Aluminum prices have gone up Id say it would cost $200 or so to make now...thats just parts...and no Im not about to make another one
shamrock 05 05-02-2008 03:23 PM

I found this site with a splitter. Has anyone ever heard of them

[url]http://www.customcarscentral.com/aprcw805008-subaru-wrx-sti.html[/url]
shamrock 05 05-07-2008 08:16 AM

^^^^^I guess nobody has heard of the site:sadbanana: I still think I may order from it though, best price I have seen
shamrock 05 05-12-2008 06:51 PM

If any of you have an APR splitter, I need to talk to you......................
nayr924 05-13-2008 12:53 AM

Track dog racing
Worksport 05-13-2008 01:15 AM

i will be makin some soon for 04-05 out of reinforced fiberglass
i have a plywood one right now that i am using.
umscooby 05-13-2008 11:23 AM

[QUOTE=shamrock 05;22261784]If any of you have an APR splitter, I need to talk to you......................[/QUOTE]


do you want us to hold your hand when you cut it out too?
spdfrk77 05-16-2008 01:51 PM

just started this project and will be getting my supplies this weekend and plan to finsh it next week.
dangerousatom: how thick of an aluminum and how many sheets did you use??I'm thinking of 3 sheets with bottom most folded onto the top and soldered.

Everybody else, what is your opinion of CF, Fiber glass, or the plastic used on truck beds for final look. I'm in Cali with lots of bad roads, dips and bumbs. And I do some auto-x thanks
UpSideDownDesi 05-17-2008 10:23 AM

[quote=BurtonCR;15104488]Want a cheap idea?

1) Take off the front bumper
2) Place bumper onto sheet of that brown thin synthetic particle board stuff you can get a home depot
3) Trace bumper and place it on the side
4) Draw out your desired splitter design
5) cut out, sand edges, paint with flat black spray paint
6) install

I helped a friend make one for his Kaminari lip after he broke his carbon one.[/quote]
i got the same lip and i gotta make a spare daily spliter before i bust my CF one too lol.
spdfrk77 06-08-2008 02:37 AM

I already made my plywood prototype, will be lifting the car and puting my holes for placement as well as for my c-west replica lip tomorrow.

dangerousatom i am curious do you have a pic of the front splitter underbody. trying to think of how and where would be a good spot for my splitter? thanks

I could use some of your input on your experiences with CF and fiber glass. thanks
spdfrk77 06-09-2008 01:03 AM

Has anybody other than Dangerousatom tried using aluminum?? How thick was yours, how did you get the edges smooth and where did you dril for support, I check and found places for frame support but still leaves about 60% with no support. I look at the front bumper beam and trying to figure how and what I need to use for good support. thanks
Dubstar112 06-09-2008 02:37 AM

Im going to be using a sheet of 3/16ths acrylic to make a splitter mounted directly to the bumper on my 07. Starting work on it this week.
Patrick Olsen 06-09-2008 10:21 PM

corner-carvers.com is a fountain of information when it comes to splitter fabrication. Here are a few good threads to check out:
[url]http://www.corner-carvers.com/forums/showthread.php?t=26350&highlight=splitter[/url]
[url]http://www.corner-carvers.com/forums/showthread.php?t=34965&highlight=splitter[/url]
[url]http://www.corner-carvers.com/forums/showthread.php?t=22306&highlight=splitter[/url]

There are a number of other threads there, too, but those should give you some ideas on materials, how to support the splitter, how to make it easily detachable, etc etc.

Pat Olsen
sconniescoob 06-09-2008 11:44 PM

[quote=Patrick Olsen;22585104]corner-carvers.com is a fountain of information when it comes to splitter fabrication. Here are a few good threads to check out:
[URL]http://www.corner-carvers.com/forums/showthread.php?t=26350&highlight=splitter[/URL]
[URL]http://www.corner-carvers.com/forums/showthread.php?t=34965&highlight=splitter[/URL]
[URL]http://www.corner-carvers.com/forums/showthread.php?t=22306&highlight=splitter[/URL]

There are a number of other threads there, too, but those should give you some ideas on materials, how to support the splitter, how to make it easily detachable, etc etc.

Pat Olsen[/quote]

Great reads for those interested in making their own splitters and lips. Big surprise...just because you throw something on the front of your scoob doesn't mean that it is really functional.
jardine 06-10-2008 07:33 PM

[url]http://forums.nasioc.com/forums/showthread.php?t=1467131[/url]
[url]http://forums.nasioc.com/forums/showthread.php?t=1464891[/url]
[url]http://forums.nasioc.com/forums/showthread.php?t=1523948[/url]

here is one that a local in the area made. very well built and i have personally drove the white car on the track with and without it and there is a bit of difference. you can try pming medamullet and see if he can make you know i know he wanted to start selling these.
spdfrk77 06-11-2008 12:00 AM

Thanks for the links, they are very usefull
Dubstar112 09-01-2008 12:01 AM

[URL=http://img82.imageshack.us/my.php?image=fiberglasssplittermg6.jpg][IMG]http://img82.imageshack.us/img82/1165/fiberglasssplittermg6.th.jpg[/IMG][/URL]

partially covered in fiber glass using 3/8 lexan as base

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