Good launch rpm?

[doug294]

Whats a good launch RPM for my 91 Civic HB Si? I have 17" rims, so I was wondering what was a good launch RPM. I either spin too much or "hop"

[Rufes1]

i launch about 3k i think.. depending on the conditions.

[Melt]

put some steelies on when you race ... you are losing so much torque on those 17's its not even funny. I had my friends gsr 15's on my car and it was sluggish

[Rufes1]

Originally posted by Melt
put some steelies on when you race ... you are losing so much torque on those 17's its not even funny. I had my friends gsr 15's on my car and it was sluggish

yeh if u take it to the track then slam some steelies on the front. those 17's are also making your ratio's too low prob

[2000dollarZCbs]

hondata is suppost to have "perfect" launches and they set their launches at 3.1

[cyberfelon]

you talking about dumping your clutch at what rpms is best? i wouldnt do that at all. i always slip the clutch from about 1300 up to 3000 then let it go and stomp on the gas. works pretty well for me

[Moppie]

1,000rpm short of redline, dump it and feather the throttle to control wheel spin.

Trust me it works, its will destroy your driveline, and it takes a lot of practice to get the throttle control right, but its the only way to get a really good launch.

[Problem_Si]

First, ditch the steamrollers....

Put some 14" steelies on and drop your tire pressure down to about 20psi. Even if you suck at "feathering", it will help your launch a little.

I did this the last time I raced and it made a huge difference in controlling wheel hop.

Of course if you cant "feather" the clutch like you're supposed to, I usually try to hold the revs at about 2800 on a launch. Of course, as I found out, launching creates havoc on driveline components.

I found out later that its not so much the launching, but the wheel hop created by launching. Thats why its a good idea to learn how to launch without "dumping" your clutch. Also, precise suspension tuning and good drivetrain components are key. Thats why Im so intent on intsalling a Phantom grip before I hit the track again. Not only does the lsd give you better traction, it cuts down on fwd wheel hop incredibly.

I will be getting my new trans probably monday, and will be taking the old one out sometime next week. Then, I will have many pictures for everyone. Then you can see exactly why wheel hop is so bad.