Don't know how to drive.
 

Ok so here's the scoop. Any manual I've driven has always had the heavy stock flywheel. Now I did a 5 speed conversion in my '89 GXL. Now I used a TII light flywheel (ACT pro lite), a stock TII clutch, TII tranny, and a TII drive shaft. I want to make this car somewhat competitive on the track and the strip. The stock 3.90 is being replaced with a 4.10 clutch pack LSD. And I've mounted 16" TII rims with Toyo proxes 4 225/50/VR16. The problem is I can't get a decent launch out of the car. If I drop it takes off then bogs down. If I feather the clutch it doesn't take off that fast. I was told you have to drive a little differently with a light flywheel I'm used to just dumping the clutch at 7k and holding on (In my '81 GSL) and I managed to pull impressive times for a stock 1st gen on the strip. This method no longer works. Would this be more flywheel related than the fact its got a 3.90 rear? And whats the best way to launch a car with a light flywheel?

problem exists between seat and steering wheel. :)

you have to try different launches. do a search on 'launch' or 'launch technique'

you will probably have to slip the clutch to get a good launch.

It gets to a certain point where the flywheel is so light it's nearly impossible to slip the clutch.
It's a compromise.

Practice, practice, practice...

I run a 1 gen, with a 3lb flywheel with a 5 1/2" dual disc setup. Talk about a little different than a street setup. ;) The first time I drove the car, the owner said rev the crap out of it and dump it. Took three times to figure it out, then figured it out.But to answer your question, if your tires will slip a little on take off, then you are best to rev it to maybe 3-4k, then drop the hammer and the clutch at the same time. Because you have so little stored energy, you have to use revs to keep from bogging off the line.
Now one side note.
I mentioned about the tires to make sure you are not making tons of grip. We run and autocross setup, and 16X12 all around. Let the tires get hot, dump a clutch,and then pick up the pieces off the ground. The traction was too great and trying to shock the tires only found the weakest link.