Changed Overdrive on Supercharger

Ok guys went from 46% to 32% overdrive. How much power did we lose?

540 New Century/Olds Big Chief, 16/71 Littlefield, Jbr 4 hole hat, MSD 20, 990 pump.

Engine dynoed at 2480+ on Oddys Dyno.


Thanks !
Jake

 

I think it depends mostly on your blower. We run a big chief 540 with a K9 1471 made for high overdrive. Going from 32-37% picked up 8mph on a 2900lb car.Approx 5 psi gain.We're going to slow the blower back down for a slick track setup.

Mike

 

over drive

Nice combo You may not see that much difference, because of the heat the higher overdrive was making.Good luck and keep me posted. Ran that combo years ago, and it was killer. Just had some valve train issues./But that may of been self inflicted. Keep a eye on the detonation issue. Good luck donimus333@yahoo.com