DFI, Batch Fire, and other myths

[Tom Sharpe]

Greg Hermann wrote:

> Ahh--dangerous thoughts, and hardware that gets forgotten--Anybody know of
> any experience racing with switch pitch TH-400's????  Or whether such an
> idea ever got tried with turbo motors??? :-) (Like switching the pitch to
> let it rev up into the boost QUICKLY???)

Switch pitches are good for heavy cars with long gears - help out of the hole
and low rpm cruse. Adds about 1000 rpm - makes a 6 speed but most of the time
it's not really effective with a wide torque curve. Use a 700R4 with the right
converter, or for BIG motors, the T400 derivative, I forgot the number.
Regarde  Tom