Does anyone know how much torque will a 4 speed take , or does anyone know how much the transmission company told about the transmission .
Are there any data files or documents out there ?????????????????.
Or how much torque a V8 conversions have ??????????


Thanks for your answers .

The Muncie 4-speed GM installed behind the 2.8s is different from all other FWD Muncies. First gear is stronger, and is 3.31:1 instead of 3.53:1. Second is also stronger, and is 1.9500:1 instead of 1.95454:1, and the case is ribbed, adding much-needed strength. This was the choice of one owner of a supercharged SBC fiero, who broke several Getrags. But that was before the F40.

well im pretty sure most if V8s you will find will have over 200+ trq.
im not accrate on this but im pretty sure any fiero tranmission cant hold up to 250 - 300 trq. maybe an auto? i maybe wrong. im sure someone will give you an exact anwser.
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looks like someone beat me to it :P

[This message has been edited by joshh44 (edited 10-27-2009).]

Once you reach 250ft lbs of torque you go into the unknown zome with Getrags or Muncies. I got this info from a GM engineer that worked for the Muncie divison. If they are in top shape, they may hold at 300 FT lbs for a while but when you regularly exceed the design limits of any tranmission it will eventually blow apart as many have.
If you want rock solid reliability go with a GM 4 speed auto. If you can't live with that or find the auto boring to drive; if you must have a stick, then just drive conservatively and keep the WOT runs to a minimum.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, 3.4" Pulley, N* TB, LS1 MAF, Flotech Exhaust Autolite 104's Custom CAI 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

I am using a 4-spd muncie with my V-8. The V-8 is rated at 355hp and 405 ft/lbs of torque. On a chassis dyno I am putting 309 hp and 349 ft/lbs to the wheels.
Been running it since 2004 without a problem. It's been on the track (drag strip and road courses) without any issues. Personally, I wouldn't push much more torque than I have now thru it without mods. (cryo, custom gear set, etc.)

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Happiness isn't around the corner...
Happiness IS the corner.
ZZ4 Powered !!

[This message has been edited by Oreif (edited 10-28-2009).]

quote Originally posted by Dennis LaGrua: If you can't live with that or find the auto boring to drive; if you must have a stick, then just drive conservatively and keep the WOT runs to a minimum.

Or don't listen to people who don't know what they're talking about and drive it like you stole it except don't do any burnouts.

quote Originally posted by Will: Or don't listen to people who don't know what they're talking about and drive it like you stole it except don't do any burnouts.

LOL

I have a 84 4.10 that I've beat on for 4 yrs behind a "souped up" 3.4 DOHC with no problems it puts out at least the same if not more torque than a stock 3800 sc with no problems. The key to its longevity? Not doing burnouts

[This message has been edited by Erik (edited 10-29-2009).]