| Butt Dyno | 09-04-2003 12:58 AM |
Do you leave your car on in between autox runs?
�
�
Generally I just leave the car on all day... I figure that way the fans can run if they have to and the car should stay nice and warmed up for the next run. I generally let it idle for 5-10 mins after my last run and before my work assignment (coz I usually can have someone I trust shut the car off later)...
Just wondering if there's any reason not to, assuming that you have enough gas of course...
-bd
Just wondering if there's any reason not to, assuming that you have enough gas of course...
-bd
| Kostamojen | 09-04-2003 01:19 AM |
I leave it on mostly for the air conditioning.
| thechickencow | 09-04-2003 01:29 AM |
I run my car for 10-20 sec if I remember, then shut it off so it can cool between runs. We can have anywhere between 10 and 30 minutes between runs in our area.
tcc
tcc
| MNbiker | 09-04-2003 08:41 AM |
The biggest reason to shut it off is to keep the intercooler from getting too hot. I typically shut off my car, pop the hood & spray down the intercooler & intake runners. FWIW - my car is always at operating temperature when I turn it back on - even after 10-20 minutes.
-Steve
-Steve
| ScreaminFast | 09-04-2003 09:41 AM |
What do you spray them down with? Water? Anyone try dry ice at an autox? I've used it at the drag strip...
| MNbiker | 09-04-2003 09:47 AM |
[QUOTE][i]Originally posted by ScreaminFast [/i]
[B]What do you spray them down with? Water? Anyone try dry ice at an autox? I've used it at the drag strip... [/B][/QUOTE]
The same weed sprayer I use to cool off the Azenis. (filled with ice water, NOT weed killer!:p )
[B]What do you spray them down with? Water? Anyone try dry ice at an autox? I've used it at the drag strip... [/B][/QUOTE]
The same weed sprayer I use to cool off the Azenis. (filled with ice water, NOT weed killer!:p )
| AWMIII | 09-04-2003 09:52 AM |
What we really need is an opinion from our new friend in Erie.
| Paisan | 09-04-2003 10:25 AM |
I leave it on for the AC although sometimes I turn it off. Depending on how quickly we'll head out again.
-mike
-mike
| MNbiker | 09-04-2003 11:12 AM |
[QUOTE][i]Originally posted by AWMIII [/i]
[B]What we really need is an opinion from our new friend in Erie. [/B][/QUOTE]
Be nice!:furious:
[B]What we really need is an opinion from our new friend in Erie. [/B][/QUOTE]
Be nice!:furious:
| elgorey | 09-04-2003 11:25 AM |
about 5-10 minutes cool down time to get the turbo back down to normal temp. Idling isnt particularly great for an engine, so I wouldnt let it go all day.
| ChrisW | 09-04-2003 11:26 AM |
I pull the relay for the AC and make sure to run the fans on a hot day. With both fans running, I can cool the oil temps by 10 degrees C inside of 5 minutes on a hot day.
I will always keep the car running until the oil temps drop to normal, then I shut it off.
If you leave it idling, oil can pack up in the turbo seals, which I hear is not good for the turbo.
Like MNBiker, I almost always open the hood, and make sure to spray down the IC, intake, and fuel rails [i]before[/i] each run. If I have a co-driver, I will get them to spray the IC and radiator right before I pull up to the starting line:devil: When I do it, I tend to hit up all the WRX's waiting to go...:cool:
I will always keep the car running until the oil temps drop to normal, then I shut it off.
If you leave it idling, oil can pack up in the turbo seals, which I hear is not good for the turbo.
Like MNBiker, I almost always open the hood, and make sure to spray down the IC, intake, and fuel rails [i]before[/i] each run. If I have a co-driver, I will get them to spray the IC and radiator right before I pull up to the starting line:devil: When I do it, I tend to hit up all the WRX's waiting to go...:cool:
| Redneck Ricer | 09-04-2003 11:44 AM |
The only thing I have learned, and this goes more towards Track racing, but could be helpful for AX too, is not to put your Ebrake on. Leave the car in gear and turn it off. If you put your Ebrake on hot brakes, you would warp your rotors....not a good thing.
just a thought.
p-rex
just a thought.
p-rex
| Coati | 09-04-2003 12:05 PM |
[QUOTE][i]Originally posted by p-rex [/i]
[B]The only thing I have learned, and this goes more towards Track racing, but could be helpful for AX too, is not to put your Ebrake on. Leave the car in gear and turn it off. If you put your Ebrake on hot brakes, you would warp your rotors....not a good thing.
just a thought.
p-rex [/B][/QUOTE]
Why would your rotors warp when they aren't touched by the e-brake? Your e-brake is a drum brake inside the assembly.
On an older car that doesn't have this setup, I can see why that might be the case, however.
[B]The only thing I have learned, and this goes more towards Track racing, but could be helpful for AX too, is not to put your Ebrake on. Leave the car in gear and turn it off. If you put your Ebrake on hot brakes, you would warp your rotors....not a good thing.
just a thought.
p-rex [/B][/QUOTE]
Why would your rotors warp when they aren't touched by the e-brake? Your e-brake is a drum brake inside the assembly.
On an older car that doesn't have this setup, I can see why that might be the case, however.
| XT6Wagon | 09-04-2003 12:15 PM |
I just leave it on so that the A/C can run. I hardly need the power that I loose from having a warm IC and I definitly drive better if I am not in a sauna.
| Redneck Ricer | 09-04-2003 12:16 PM |
[QUOTE][i]Originally posted by Coati [/i]
[B]
Why would your rotors warp when they aren't touched by the e-brake? Your e-brake is a drum brake inside the assembly.
On an older car that doesn't have this setup, I can see why that might be the case, however. [/B][/QUOTE]
Yes, depending on WHAT your car is, and WHAT you have for a setup, it will make no difference. You are correct.
I was just putting the point out there. Is it completely useless to do it in my STI, probably, but it was very usefull in many other cars.
Oh well, was just trying to offer insight, guess it was not needed:rolleyes:
p-rex
[B]
Why would your rotors warp when they aren't touched by the e-brake? Your e-brake is a drum brake inside the assembly.
On an older car that doesn't have this setup, I can see why that might be the case, however. [/B][/QUOTE]
Yes, depending on WHAT your car is, and WHAT you have for a setup, it will make no difference. You are correct.
I was just putting the point out there. Is it completely useless to do it in my STI, probably, but it was very usefull in many other cars.
Oh well, was just trying to offer insight, guess it was not needed:rolleyes:
p-rex
| Dussander | 09-04-2003 01:27 PM |
My habit has been to pull in after a run and pop the hood and leave the engine running. Then I do the tire pressures. Then I go back and spray the intercooler, and then turn the engine off. Before my next run I re-spray the intercooler and the radiator. I drop the hood right before I have to move the car.
| mxm477 | 09-04-2003 01:30 PM |
Leave your car run for 10-minutes before shut down... this is an absolute requirement of big engines, and is a good idea for small ones.
Why are small and big different you may ask?
Well, they're not, but the automakers know you will drive it hard and put it away wet... so they do a lot of work to design to hot shutdowns.
In a turbo... you move ?1200�F? air past the turbine blades for 40-60 seconds while you're out there on course... then you come in a kill the engine and that causes a heat-soak condition.
The housing of the turbo is exposed to open air, while the turbine blade has residual exhuast heat in teh manifold coming out to affect it further... know your turbine and bearings are hot, and your housing is significantly less hot... not what a turbo wants to see... also, your piston rings and crown do not appreciate teh residual heat either.
So, let it run at idle and you will move 350 - 400 �F air through the entire engne system... thus, the temperature graident from component to component, and the thermal loading in general, is greatly reduced.
... fun fact: a locomotive gets shut down as little as possible to avoid start up friction and heat gradients (5 times a year is reasonable)... they will sit in a railyard for a day idling because it is better that the wear associated with start up and shut down. On top of this, an electric oil pump runs for 2-minutes before teh control will allow the engine to crank... this is how much start up can be an issue.
... on a gas engine... I do not recommend too much more than 10-minutes of idle becuase then different failure modes start to creep in... carbon behing the rings for example... also, this gets 'blown out' next time you run.
oh, and about letting the intercooler cool... unless you push your car to the starting line after it has sat for an hour or more... and then fire it up and immediately go for it... you will not have a chance of gaining anything.
Why? Becuase within 2-3-seconds of engine start up, your exhuast temperature is what it is... and your exhuast temperature is what it is... so they effectively 'pre-heat' the intercooler to running temperature....
What is the physics behind the intercooler? How does it affect hp?
Cool air has (2) helpful things associated with it... it is more dense and thus will provide more work to the piston top when heated... and... it controls pre-detination due to combustion and packing of the engine system...
Subaru engineers designed the intercooler to provide x� MAT (manifold air temperature) and not knock at y MAP... change MAT, MAP changes.. the control module may be so smart it changes the fuel to produce the same IMEP (mean effective (cylinder) pressure). Net gain... 0.
If the engine control is not smart enough.. you get maybe 2-3 hp for the very short period of time the intercooler is cold(er). Maybe enough of an edge in a 10-second drag race... but not in a 50 second autox... the 0.010 second gain from hp is just noise in most anyone's ability to drive thier car.
On the other hand... cooling an aluminum part in a very hot engine bay is very likely to crack it over time... it will then 'blow off' you boost and all of your hp will go into heating the atmosphere of the earth.
Regards, Matt..k :alien:
Why are small and big different you may ask?
Well, they're not, but the automakers know you will drive it hard and put it away wet... so they do a lot of work to design to hot shutdowns.
In a turbo... you move ?1200�F? air past the turbine blades for 40-60 seconds while you're out there on course... then you come in a kill the engine and that causes a heat-soak condition.
The housing of the turbo is exposed to open air, while the turbine blade has residual exhuast heat in teh manifold coming out to affect it further... know your turbine and bearings are hot, and your housing is significantly less hot... not what a turbo wants to see... also, your piston rings and crown do not appreciate teh residual heat either.
So, let it run at idle and you will move 350 - 400 �F air through the entire engne system... thus, the temperature graident from component to component, and the thermal loading in general, is greatly reduced.
... fun fact: a locomotive gets shut down as little as possible to avoid start up friction and heat gradients (5 times a year is reasonable)... they will sit in a railyard for a day idling because it is better that the wear associated with start up and shut down. On top of this, an electric oil pump runs for 2-minutes before teh control will allow the engine to crank... this is how much start up can be an issue.
... on a gas engine... I do not recommend too much more than 10-minutes of idle becuase then different failure modes start to creep in... carbon behing the rings for example... also, this gets 'blown out' next time you run.
oh, and about letting the intercooler cool... unless you push your car to the starting line after it has sat for an hour or more... and then fire it up and immediately go for it... you will not have a chance of gaining anything.
Why? Becuase within 2-3-seconds of engine start up, your exhuast temperature is what it is... and your exhuast temperature is what it is... so they effectively 'pre-heat' the intercooler to running temperature....
What is the physics behind the intercooler? How does it affect hp?
Cool air has (2) helpful things associated with it... it is more dense and thus will provide more work to the piston top when heated... and... it controls pre-detination due to combustion and packing of the engine system...
Subaru engineers designed the intercooler to provide x� MAT (manifold air temperature) and not knock at y MAP... change MAT, MAP changes.. the control module may be so smart it changes the fuel to produce the same IMEP (mean effective (cylinder) pressure). Net gain... 0.
If the engine control is not smart enough.. you get maybe 2-3 hp for the very short period of time the intercooler is cold(er). Maybe enough of an edge in a 10-second drag race... but not in a 50 second autox... the 0.010 second gain from hp is just noise in most anyone's ability to drive thier car.
On the other hand... cooling an aluminum part in a very hot engine bay is very likely to crack it over time... it will then 'blow off' you boost and all of your hp will go into heating the atmosphere of the earth.
Regards, Matt..k :alien:
| Butt Dyno | 09-04-2003 01:47 PM |
I shouldn't have said "let it idle all day" - I just mean from the time my heat starts to 10 mins after my last run...
-bd
-bd
| TheWRX | 09-04-2003 02:28 PM |
My routine is similar to Dussander. I pull into grid, and pop the hood. I let the engine run for probably a couple of minutes, while I get busy with the water spray. Then I shut it down. When it looks like I'll be up for my next run soon, I drop the hood, and get belted in. Then start the engine, put the helmet on, and go.
Subaru says that there's no need to keep the engine running to cool down the turbo (see turbo timer discussions), but I still feel like it might be a good idea after driving the car very hard.
Subaru says that there's no need to keep the engine running to cool down the turbo (see turbo timer discussions), but I still feel like it might be a good idea after driving the car very hard.
| Dussander | 09-04-2003 02:37 PM |
The WRX clearly produces more power at lower MAT temperature. When running the car, the air cools the intercooler giving a lower MAT, but when you stop the intercooler raises in temperature from the ambient heat. If you cool the intercooler right before a run you maintain the normal power instead of losing it from having high temperature air go into the engine. Once you get moving, the air again cools the air going into the engine. If you cool the intercooler, it will not get back up to heat soak temperature in 2-3s. (Well, unless you engine bay is hella-hot, but it should be significantly cooler, if you had the hood open for a while.)
Make your run and park and put your hand on the intercooler. It's not that hot. Wait some time and it gets a lot hotter. Spray it down unti it is cool again. Start the car up after letting it sit between runs. See how long it stays cool. You will notice this time is a lot longer then 2-3s.
Next run, do not spray the intercool at all and feel the temperature before you leave to go start. It will be much warmer.
Make your run and park and put your hand on the intercooler. It's not that hot. Wait some time and it gets a lot hotter. Spray it down unti it is cool again. Start the car up after letting it sit between runs. See how long it stays cool. You will notice this time is a lot longer then 2-3s.
Next run, do not spray the intercool at all and feel the temperature before you leave to go start. It will be much warmer.
| mxm477 | 09-04-2003 03:16 PM |
What is 'cooler'?
The difference between hot water and luke-warm water? Similiar to that felt on the intercooler by hand...
What is your hand's tolerance to temperature?
130F? 150F maybe... what is the difference between a 'hot' intercooler... and a warm intercooler? 30F... 50F maybe?
How much hp does 50F intercooler surface temp translate into... 15F MAT... 30 at most.
How much hp do you get from 30F mat difference at the start of the race? Does this change your time... can you measure it?
What is the transient time to heat the intercooler from idle temps to 227 hp temps? A few seconds at most, right.
:cool: there may be psycological merit in watering your intercooler, but I have confidence it could never be measured on the time clock in a double blind test.
Regards, Matt...k
the Sti intercooler on the other hand... will give a performance improvement, as the mean temperature will be lowered for the whole run...
The difference between hot water and luke-warm water? Similiar to that felt on the intercooler by hand...
What is your hand's tolerance to temperature?
130F? 150F maybe... what is the difference between a 'hot' intercooler... and a warm intercooler? 30F... 50F maybe?
How much hp does 50F intercooler surface temp translate into... 15F MAT... 30 at most.
How much hp do you get from 30F mat difference at the start of the race? Does this change your time... can you measure it?
What is the transient time to heat the intercooler from idle temps to 227 hp temps? A few seconds at most, right.
:cool: there may be psycological merit in watering your intercooler, but I have confidence it could never be measured on the time clock in a double blind test.
Regards, Matt...k
the Sti intercooler on the other hand... will give a performance improvement, as the mean temperature will be lowered for the whole run...
| wrx2.0 555 | 09-04-2003 03:16 PM |
I found this link on another thread and found it extremely interesting.
I think its very relevant to the points discussed in this thread since several of you mention spraying your ic's between runs.
[url]http://www.autospeed.com.sg/cms/article.html?&A=0527[/url]
Make sure you continue thru the links at the bottom of the page.
I think its very relevant to the points discussed in this thread since several of you mention spraying your ic's between runs.
[url]http://www.autospeed.com.sg/cms/article.html?&A=0527[/url]
Make sure you continue thru the links at the bottom of the page.
| mxm477 | 09-04-2003 03:42 PM |
excellent link...
No MAT difference... so I was being quite generous in saying that you could get 15F dT,or a hp or 2....
Water sprayers are a gimic... but Gen-Y's gotta have 'um.
Get a bigger intercooler... for a few hp at any operating range...
Or simply work on technique for those 1/10s (or 1/100ths) seconds here and there.
Regards, Matt
:banana:
No MAT difference... so I was being quite generous in saying that you could get 15F dT,or a hp or 2....
Water sprayers are a gimic... but Gen-Y's gotta have 'um.
Get a bigger intercooler... for a few hp at any operating range...
Or simply work on technique for those 1/10s (or 1/100ths) seconds here and there.
Regards, Matt
:banana:
| Templar | 09-04-2003 03:57 PM |
[QUOTE][i]Originally posted by wrx2.0 555 [/i]
[B]I found this link on another thread and found it extremely interesting.
I think its very relevant to the points discussed in this thread since several of you mention spraying your ic's between runs.
[url]http://www.autospeed.com.sg/cms/article.html?&A=0527[/url]
Make sure you continue thru the links at the bottom of the page. [/B][/QUOTE]
That is an excellent link and very informative about seveal issues. However the fatal flaw in that article when related to Autocross is that water sprayers are not allowed for Solo I and SOlo II competition. Therefore they cannot be used during a run and the only way to utilize one is to spray down the IC as shortly before your next run as possible.
Of course, then when you get into the physics of the waters cooling effects on the metal you get into the fact that metal is cooled the greatest percentage by water that is evaporating from the surface, not from ice cold water. You would actually gain a greater cooling effect of the fins in the intercooler by spraying it down with ambient temperature water. It will still transfer heat from the metal at the same rate as the ice cold water, and it will reach evaporation more quickly, thereby increasing cooling effectiveness.
The reason that dry ice is used by several hardcore racers is that is has an extremely low evaporation point and it does not have a liquid state. Therefore, the ice transfers heat out and then evaporates very quickly, taking the heat with it so to speak.
[B]I found this link on another thread and found it extremely interesting.
I think its very relevant to the points discussed in this thread since several of you mention spraying your ic's between runs.
[url]http://www.autospeed.com.sg/cms/article.html?&A=0527[/url]
Make sure you continue thru the links at the bottom of the page. [/B][/QUOTE]
That is an excellent link and very informative about seveal issues. However the fatal flaw in that article when related to Autocross is that water sprayers are not allowed for Solo I and SOlo II competition. Therefore they cannot be used during a run and the only way to utilize one is to spray down the IC as shortly before your next run as possible.
Of course, then when you get into the physics of the waters cooling effects on the metal you get into the fact that metal is cooled the greatest percentage by water that is evaporating from the surface, not from ice cold water. You would actually gain a greater cooling effect of the fins in the intercooler by spraying it down with ambient temperature water. It will still transfer heat from the metal at the same rate as the ice cold water, and it will reach evaporation more quickly, thereby increasing cooling effectiveness.
The reason that dry ice is used by several hardcore racers is that is has an extremely low evaporation point and it does not have a liquid state. Therefore, the ice transfers heat out and then evaporates very quickly, taking the heat with it so to speak.
| TheWRX | 09-04-2003 04:04 PM |
When my car was on the dyno the other day, I lost about 5 WHP between pulls immediately following each other. If there was a delay between pulls (we also started spraying the IC), power was back at the expected levels.
Still doesn't apply directly to an auto-x environment, but at least it's real data.
Still doesn't apply directly to an auto-x environment, but at least it's real data.
| Dussander | 09-04-2003 04:08 PM |
Fine, go heat soak your intercooler and run a 1/4 mile. Then go spray it to a lower temperature, wait 15s and run a 1/4 mile.
A lower temprature intercooler can cool down air as much as a larger intercooler at a higher temperature. But while driving the intercoolers will reach the same temperature and then the larger one will obviously work better.
But if you think spraying an intercooler is a myth, that is fine.
A lower temprature intercooler can cool down air as much as a larger intercooler at a higher temperature. But while driving the intercoolers will reach the same temperature and then the larger one will obviously work better.
But if you think spraying an intercooler is a myth, that is fine.
| AUTOwrXER | 09-04-2003 05:59 PM |
[QUOTE][i]Originally posted by TheWRX [/i]
[B]When my car was on the dyno the other day, I lost about 5 WHP between pulls immediately following each other. If there was a delay between pulls (we also started spraying the IC), power was back at the expected levels.
Still doesn't apply directly to an auto-x environment, but at least it's real data. [/B][/QUOTE]
So what are you putting down these days, Bob? Let's grab dinner and beer again in Topeka. Shane was unavailable so Rick Cone will be driving with me again.
Joel
[B]When my car was on the dyno the other day, I lost about 5 WHP between pulls immediately following each other. If there was a delay between pulls (we also started spraying the IC), power was back at the expected levels.
Still doesn't apply directly to an auto-x environment, but at least it's real data. [/B][/QUOTE]
So what are you putting down these days, Bob? Let's grab dinner and beer again in Topeka. Shane was unavailable so Rick Cone will be driving with me again.
Joel
| TheWRX | 09-04-2003 07:45 PM |
[QUOTE][i]Originally posted by AUTOwrXER [/i]
[B]So what are you putting down these days, Bob?[/B][/QUOTE]
Bob? Wrong number! This is Reto.
[B]So what are you putting down these days, Bob?[/B][/QUOTE]
Bob? Wrong number! This is Reto.
| MNbiker | 09-04-2003 10:05 PM |
[QUOTE][i]Originally posted by mxm477 [/i]
[B]excellent link...
No MAT difference... so I was being quite generous in saying that you could get 15F dT,or a hp or 2....
Water sprayers are a gimic... but Gen-Y's gotta have 'um.
Get a bigger intercooler... for a few hp at any operating range...
Or simply work on technique for those 1/10s (or 1/100ths) seconds here and there.
[/B][/QUOTE]
Not sure the article in the link is all that relevant. The measurements they were looking at don't directly apply to the question at hand - Does a 40-50degree reduction in intercooler temperature make a measureable difference in performance, and if so, for how long?
The whole issue of water sprayers is irrelevant, as they're not legal for DS or STX, the classes most of us are currently running in.
As for a larger intercooler, I'd love one. There are several larger top-mounts that have far more cooling (heatsink) capacity than the stock intercooler AND have less pressure drop. However, there's those pesky SCCA rules again - no intercooler mods in stock or STX.
Yeah, ALL of us have room to improve our driving skills. You're pretty much preaching to the choir on that one. But that's not the topic of this particular thread....
I've definitely experienced the benefits of spraying/icing down the intercooler at the drag strip, in terms of measureable .2 second ET improvements on a hot day. However, I'm not sure exactly what the measureable impact is in an autox setting. I was going to do some DeltaDash logs this weekend anyway - think I'll gather some data on this issue while I'm at it.
-Steve
[B]excellent link...
No MAT difference... so I was being quite generous in saying that you could get 15F dT,or a hp or 2....
Water sprayers are a gimic... but Gen-Y's gotta have 'um.
Get a bigger intercooler... for a few hp at any operating range...
Or simply work on technique for those 1/10s (or 1/100ths) seconds here and there.
[/B][/QUOTE]
Not sure the article in the link is all that relevant. The measurements they were looking at don't directly apply to the question at hand - Does a 40-50degree reduction in intercooler temperature make a measureable difference in performance, and if so, for how long?
The whole issue of water sprayers is irrelevant, as they're not legal for DS or STX, the classes most of us are currently running in.
As for a larger intercooler, I'd love one. There are several larger top-mounts that have far more cooling (heatsink) capacity than the stock intercooler AND have less pressure drop. However, there's those pesky SCCA rules again - no intercooler mods in stock or STX.
Yeah, ALL of us have room to improve our driving skills. You're pretty much preaching to the choir on that one. But that's not the topic of this particular thread....
I've definitely experienced the benefits of spraying/icing down the intercooler at the drag strip, in terms of measureable .2 second ET improvements on a hot day. However, I'm not sure exactly what the measureable impact is in an autox setting. I was going to do some DeltaDash logs this weekend anyway - think I'll gather some data on this issue while I'm at it.
-Steve
| wrx2.0 555 | 09-05-2003 07:54 AM |
[QUOTE][i]Originally posted by MNbiker [/i]
[B]Not sure the article in the link is all that relevant.
The whole issue of water sprayers is irrelevant, as they're not legal for DS or STX, the classes most of us are currently running in.
[/B][/QUOTE]
Its very relevant. It gives us an idea of the usefulness of spraying the intercooler at all. And if we do, when it is actually appropriate.
The issue of water sprayers is relevant for the reason I pointed out here--
[QUOTE]I think its very relevant to the points discussed in this thread since several of you mention spraying your ic's between runs.[/QUOTE]
Considering I only beat my nearest competitor by 10ths and 100ths most of the time, A spray down between runs to get the ic BACK down to reasonable temp could broaden that gap a little. I have never tried it myself. But considering how Freakin hot it gets here in Jax, and where we stage there is no shade, I will try it next event. It certainly cant hurt...
[B]Not sure the article in the link is all that relevant.
The whole issue of water sprayers is irrelevant, as they're not legal for DS or STX, the classes most of us are currently running in.
[/B][/QUOTE]
Its very relevant. It gives us an idea of the usefulness of spraying the intercooler at all. And if we do, when it is actually appropriate.
The issue of water sprayers is relevant for the reason I pointed out here--
[QUOTE]I think its very relevant to the points discussed in this thread since several of you mention spraying your ic's between runs.[/QUOTE]
Considering I only beat my nearest competitor by 10ths and 100ths most of the time, A spray down between runs to get the ic BACK down to reasonable temp could broaden that gap a little. I have never tried it myself. But considering how Freakin hot it gets here in Jax, and where we stage there is no shade, I will try it next event. It certainly cant hurt...
| AUTOwrXER | 09-05-2003 02:11 PM |
[QUOTE][i]Originally posted by TheWRX [/i]
[B]
Bob? Wrong number! This is Reto. [/B][/QUOTE]
Well then. I thought this was Bob Brown's handle. Since if been mixing you up for a few months now, does anyone know what Bob's handle is?
[B]
Bob? Wrong number! This is Reto. [/B][/QUOTE]
Well then. I thought this was Bob Brown's handle. Since if been mixing you up for a few months now, does anyone know what Bob's handle is?
Không có nhận xét nào:
Đăng nhận xét