Launch RPM

[weedburner]

Originally Posted by james schaechter

I find this very interesting. Dead hooking on radials with zero drop? And the clutch is doing the work? I would expect that the clutch is slipping or the tires are spinning. Or the chassis works extraordinarily well with radials and the engine is an absolute beast! Tell me more. What type of radials? Weight of car? and what Are your incremental Times? Thanks, Jim.

My personal car is a 2325 lb torque arm car on 275/60-15 M/T radials, powered by a 355 with a 2 stage crossbar backed by a Toploader 4 spd. Not really that relatable to the combos usually discussed here, as it was built for no-prep. It currently uses a 2800lb diaphragm with a full face 5135 iron disc. It NEEDS that much clamp to hold 800ft/lbs for those times when the little 355 has both kits turned on. But as you can imagine, that much clamp on an iron disc is going to hit pretty hard. Now imagine me trying to launch naturally aspirated or maybe just one kit with that much clamp on an iron disc...not pretty without the ability to temporarily dial out some clutch. I'm mostly a no-prep guy, so smooth power delivery and being able to add power as i work my way thru the gears is big to me. Here's a link to that build... http://tntrc.com

The clutch control on the above car is functionally similar to what i have supplied to many Coyote Stock and Factory Stock racers. The slip i posted earlier is from one of those guys...



Grant