[viacondotti]

Originally Posted by Cthulhu

I just took a Skip Barber course in the 4-speed formula cars and it was freakin' heaven! I already put a down payment on the next course (3 day course) and after that, I plan on taking the 2 day advanced course and doing some lapping.

I can double clutch fine, and I can heel toe fine, but haven't been doing them together. Should I be?

I've got a 135i now and miss my Lotus so bad... I find that if I attempt to double clutch heel toe on the 135i, the engine rev after a blip is very unpredictable and laggy. I either over rev or under rev. I double clutch if I'm upshifting above 4,000 RPM or downshifting to a gear above 4,000 RPM, and it works fine if I give the throttle a blip by flooring it quickly. I heel toe frequently and smoothly with no issues. I only have issues when I'm trying to bring the revs very quickly so that I can double clutch as I heel toe.

I don't know if I'm doing it too fast, need practice, or if it's the throttle response of the TT engine on my car, but it's driving me crazy! I've been mismatching revs lately trying to do this, and it's frustrating the hell out of me.

I'm thinking about practicing double clutching without blipping at WOT, since I can't get my foot to go WOT easily when heel toeing.

Anyone do these two things together? Is it necessary? Any suggestions?

I can't offer advice on your main question, though I've seen it done up close (by Mark Starr) and it's a complicated bit of coordination that must take a lot of practice. It also lengthens the shift time.

On rev matching, though, precise blipping is a lot easier if your engine has good throttle response and the engine revs freely. The Elise engine in pretty good in this respect. Porsche engines are even better in my experience. The engine in my 2001 Audi TT (1.8 turbo) on the other hand makes precise blipping fairly difficult.