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Launching question

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Old May 11, 2009 | 01:48 PM
  #1  
RedDC2GSR's Avatar
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From: Pittsburg,CA
Default Launching question

So I recently bought my frst honda, it's a 97 integra gsr, it has a skunk2 intake manifold, and aem short ram air intake, a comptech 4-2-1 header, a comptech cat-back exhaust, and a set of progress lowering springs. It has the stock 15x6 wheels and a set of falken ziex 195-55-15 tires. With this car and these mods what is the best way to launch? I will be racing at the CMI north vs south on the 30th and dont want to look like a complete fool.

p.s. I have raced for many years but with a front engine rear drive V8 never in a front engine front wheel drive 4 cylinder.

Thanks for any help and advise you can give.
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Old May 11, 2009 | 02:14 PM
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mangina's Avatar
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Default Re: Launching question

If you have raced for many years.... it shouldn't be that hard to launch a car
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Old May 11, 2009 | 02:15 PM
  #3  
1992Si's Avatar
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Default Re: Launching question

I'll take a guess 6800rpm if that's to much try something lower, if it's not enough try a little more.

Every car is a little different. If you can you should go to a track a practice before the "big race". You'll learn more doing that then anyone here can tell you.

There's also pre-loading but not sure if you have enough HP to worry about that.

More guy's will check in here soon.
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Old May 11, 2009 | 05:02 PM
  #4  
gearhead16's Avatar
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Default Re: Launching question

it also depends if your on street tires or slicks my crx only slicks launches at 7500 and my 99 ex and street tires i launched at 4000
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Old May 12, 2009 | 08:51 AM
  #5  
mHeant2B's Avatar
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Default Re: Launching question

you just gotta go to a test n tune event for some seat time
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Old May 12, 2009 | 12:33 PM
  #6  
Silva Bullit DC4's Avatar
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From: Dinwiddie, VA, USA
Default Re: Launching question

Originally Posted by mangina
If you have raced for many years.... it shouldn't be that hard to launch a car
Read his next to last statement. He's looking for advise on launching a FWD car, which he's NEVER raced on. If you dont have any positive feedback to help him out, then dont post.

Originally Posted by 1992Si
I'll take a guess 6800rpm if that's to much try something lower, if it's not enough try a little more.

Every car is a little different. If you can you should go to a track a practice before the "big race". You'll learn more doing that then anyone here can tell you.

There's also pre-loading but not sure if you have enough HP to worry about that.
I agree, launch rpm will vary from car to car, to I'd suggest trying different rpm launches from maybe 4K on up, 1k rpm at a time, and see what works for you. Tire pressure shouldnt be an issue for you, being you're on street tires. Dont slip the clutch, but dont dump it, either.

But yes, practice and seat time makes perfect, take it out and run it, run it, run it! ;-)
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Old May 12, 2009 | 03:16 PM
  #7  
mangina's Avatar
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Default Re: Launching question

wasn't trying to sound like a dick.
just figured if somebody has raced many years, driving a almost stock car
should come easy. SORRY.
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Old May 12, 2009 | 03:23 PM
  #8  
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From: irvington, nj, usa
Default Re: Launching question

agreed test and tune is def the way to go
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Old May 12, 2009 | 03:40 PM
  #9  
ddd4114's Avatar
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From: Columbus, OH
Default Re: Launching question

Start at a little higher than peak torque and if it bogs, try a little higher. If you keep the engine speed around peak torque, you're producing the most amount of thrust when you become power-limited, so if you drop below it, you won't be as fast. The same goes for launching too high, but if the engine bogs, it might be the fastest way to go.
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Old May 12, 2009 | 04:04 PM
  #10  
RedDC2GSR's Avatar
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From: Pittsburg,CA
Default Re: Launching question

thanks for all of your suggestions, I think I'll start at 4k and go from there. When you say don't slip the clutch but don't drop it either do you mean to let it out fast but don't just let my foot off? I'll make a few test launches one of these evenings and let you guys know what happens.
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