I have a 92 prelude SI 4ws w/ stock clutch. What is the best way to launch? Should I rev it to like 3k-4k or to like 5k-6k? And should I let the clutch out slow, or drop it fast? Which will be the most reliable and which will give me the best times?

Thanks, jordan

 

Before "it" starts again...

Launch for what type of racing? That makes a difference...

 

Rev it to 10k and dump it bro - you've got VTEC!

Wait - do you have an ASGM ver. III or higher installed? If not get one!

 

I dont have VTEC redline is 6500 and stock clutch.

I want to learn how to launch for both street racing (red light encounter) and 1/4 mile times.

 

Practice. Where's your main torque range? How much do you spin off the line when you launch at 5k as opposed to 3k? How much air pressure do you ahve in your tires?

Just play with it.

 

This is a good question.

What about launching a Type R (stock) for autocross purposes?

 

What about launching a Type R (stock) for autocross purposes?


I'd say its very grip dependent. On grippy concrete in the summer with already warm Hoosiers I launch at around 4500 with a quick slip and nailing the throttle. But on average macadam on street tires I launch at 3300 with the same foot technique. Bottom line is I try to go for a little wheelspin (slightly more than a chirp)

 

There are so many different combinations of cars, tires, and surfaces that there is no one way to do it. With four bangers that make their power high in the rev range, the goal is to spin the tires on launch, and have them hook up as your engine is entering the meat of it's torque curve. Once you're hooked up you'll be putting power to the ground through your motor's power peak. On each upshift, you want your RPMs to fall around your peak torque, no higher. So depending on your engine's torque curve, it's not always the fastest way to run the 1/4 mile bouncing off the rev limiter in each gear.

 

i can lunch...oh no, wait he said LAUNCH

 

This is correct. First you want to find out where your peak torque is and launch right below it. Slip the clutch fast and get just a little wheel spin, then as it catches, you'll be in your peak torque and then after that, it's all easy. It sounds easy, but it takes practice. Slipping the clutch that fast might cause you to either spin too much, bog, or even stall. Practice practice.

This is of course at the track, I'm sure you love your clutch too much to be doing this all the time on the street when you race someone.

 

when you guys mean "quick slip", I assume you mean bring the pedal up quickly, but not let the pedal snap release -- right?

Also, If I'm looking to engage just below peak torque, then in the ITR, I would have thought that I would need to launch considerably higher than 4500 -- more like into VTEC?

 

where's that damn chirp thread when you need it.

 

yeah and the pic of the fuzzy logic chirp controller, dam i gotta get ONE!!!!!!