Join Date: Apr 2000
Location: Columbia, MO USA
Re: Stock Muncie torque/hp rating?
"Probably 425 for the M-20, 450 for the M-21 and 500 for the M-22 and a schosh over 600 for the high zoot bells and whistles Italian gear set M-22 Supercase w/ the iron mid-plate, imho!!"
This is my gut feeling after reading everything on the Boards as well all the mags through the years of what guys have actually ran.
I would like to see real world testing of actual peak, right after dumping the clutch just before breakaway of real slicks at launch torque numbers in a car and I just picked up on Autogear saying, "With the proper rear end gear a new M22 can handle close to 700HP!", and I mention this b/c you can reach a point where you unload the tranny in low gear b/c of too steep a reg, imho.. Again, imho.
An M-20 and a 4.10 w/ 8.00 slicks will live a lot longer than the same M-20 w/ a 3.07 and the same tire IF the clutch holds! I figure this is b/c the load will lessen upon the tires spinning is all!
If the clutch holds and the tires DON'T spin, then the tranny, u-joints/driveshaft and rearend had better be able to handle the full t of the engine at max output!
All bets are off if the clutch doesn't hold or the tires spin!
Please come back on this b/c we all really need to figure out a way to come up w/ a relatively CHEAP, 4-speed tranny that can hold at least 650 t, imho! I know I probably do b/c of my about 580 t 496!
And I sold my good MOPAR A833 b/c I didn't want to hassle w/ installing it or an old '60's Ford Top-Loader that I figure that both have more strength than our Muncies.