Launching a Base Box

[thstone]

The torque curve on the base Boxster isn't particularly impressive at low RPM, therefore I rev to 4K and let the clutch out quickly for a fast launch. Bear in mind, I do not "drop" the clutch like I would for a burn out, but I do not linger at the engagement point either: rev's to 4K and let it out quick and smooth. Your mileage may vary.

[j.fro]

I use the same technique that thstone has described, varying around 3-4K. You've got to feel it out during the first two runs to get it right, however. On cold days or slick tracks, I'll drop the revs down to keep from spinning and wasting time, but on hotter days or stickier tracks, revs can get pretty high to not bog the launch.
When my 6 speed was opened up at 142K for a 2nd gear pop-out issue, the gears themselves looked great. I've heard of lots of 5 speeds handling pretty impressive power from 3.4/3.6 engines.
Be sure the axles are nice and tight. I've heard about more problems there than with the transmissions.

[jb92563]

Hmmmm, guess the S has quite a bit more torque at the low end.

I rev to 2000 and let it out smooth and quick with full throttle immediately at full clutch engagement.

Its a very satisfying launch with full grip and control.

My autocross likes to set up the start with a 90 degree bend 10 feet from the start line so keeping grip is more important.

I've seen folks nearly swap ends 20' into the lap from overly aggressive launches.

Guess I'll see this weekend how the layout is this time.

[Bigsmoothlee]

I agree with the rev to 4000 and slip the clutch quickly technique. Im running a 3.4 through a 5 spd gearbox... Just be careful not to slip it too quickly or this will happen.

Also, AutoX isnt all about drag style launches, I usually save the hard launches for the last couple of runs.

[truegearhead]

Originally Posted by Bigsmoothlee

I agree with the rev to 4000 and slip the clutch quickly technique. Im running a 3.4 through a 5 spd gearbox... Just be careful not to slip it too quickly or this will happen.

Also, AutoX isnt all about drag style launches, I usually save the hard launches for the last couple of runs.

Yikes, that's a new one! I just rebuilt my axles, they seem ok. Luckily you can get them pretty inexpensively on Parts geek. Looks like I just need to get quicker at swapping my clutch.

[Topless]

I never go for the "Big launch" in AX. I rev gently and release the clutch smoothly so that I can be full throttle/clutch fully engaged as I cross the starting line. AX is for fun and clutches and axles are expensive.