4-t60 vs HM-282

[inferno_indication]

Has anyone here swapped a 4-t60 for a HM-282 here? I just would like to know the following..

*Is the swap a smart step twoards turbo-ing the 3.1 using the T-25 from the TGP or a T3 in my 92gp se?

*Can the 3.1/282 combination handle more boost compared to the 4-t60e,if so or if not how much?

*What boost level would be safe to run on a 4-t60 and 282 for daily use?

Engineered performance 3400 swap prices are to high, and I don't have the time and tools for it. So I'm going tubo, it's cheaper, won't take as long to get done, and fits just right into my budget as of now until I can afford to get my hands on a 2001 GTP in the future. (aka project street bully )

[inferno_indication]

Out of due respect I seriously need these question's answered, there isn't anyone in this city who seriously has the knowledge about what I want to accomplish...

[El_Diablo]

its not how much boost the trans will hold... its how much horsepower and turque

what years are the trannies you're interested in using?

[inferno_indication]

Perferrably a 1992-1994 282, but one that can hold up to some abuse (city driving/delievering newspapers) with the T-25 or T/3 turbo. Someone under that topic (fwd manual) mentioned that it would be better to practically reinforce the 4-t60 rather then getting the 282,but is that cheaper then the swap?!

[torq455]

the 4T60 will handle 370 ft/lbs stock. not sure what a good build would cost but in the area of $2200 for starters. I'm sure the standard tranny will hold just as much torque and you won't have to worrie about burning a $2500+ tranny up. if it breaks, you pay what--another 500? though, for a paper route stop n go, i'd rather have the auto.

[GutlessSupreme]

the 4T60 will handle 370 ft/lbs stock.

not in a 3400 pound Grand Prix it won't. If you throw your everyday 4T60 on a stock build behind a turbo.. I give it a few weeks.


If you're going to be using a 4T60, it damn well better be a really hardcore rebuild, or a 4T60-HD out of a TGP. Even the HD's aren't really known for holding up so well, depending on other mods. And it's extremely hard to find a place that will rebuild one properly.

Personally I'd go for a 282 (and I will be, once I finish picking up odds and ends and have a chip made). But just know that people are finding 1st and most of 2nd gear useless on a w-body 282 with behind a turbo 3.1.

Some people are starting to look into swapping 1st and 2nd (and 5th, for better OD gear) out of L-body 282's because the gears aren't so steep and should help control the power a bit. Only easy option is staged boost control, or else you're going to have a problem with daily traction.

As long as it's not some 150k tranny with that's been abused it's whole life, I wouldn't worry about the durability behind a turbo for a while. For the most part, 282's have been holding up plenty well enough on stock builds behind turbo motors. With a stock 4T60-HD I wouldn't run over ~11 PSI consistantly. 282 will handle higher, but the T25 can't really do anything much higher than that.

[inferno_indication]

As long as it's not some 150k tranny with that's been abused it's whole life, I wouldn't worry about the durability behind a turbo for a while. For the most part, 282's have been holding up plenty well enough on stock builds behind turbo motors. With a stock 4T60-HD I wouldn't run over ~11 PSI consistantly. 282 will handle higher, but the T25 can't really do anything much higher than that

my engine and tranny both have 130,000 mi and I just want a safe but fun set up, so how could I achieve that?, can I at least match power output with a series 1 3800 v6?

[germ]

well, i ran a turbo on my stock 1996 4t60e for over 25,000 miles, pushing over 10psi.

the tranny made it to 202,000 miles before i pulled it out, and it was still kicking and shifting very good. the TC was just shit and whining non stop.

i currently am running a 1999 4t60e, pushing 15+ psi before storage this winter.

i dont know what everyone else is doing wrong, but the 4t60e can take some punishment.

and i do not take it easy on my car.

[GutlessSupreme]

well, i ran a turbo on my stock 1996 4t60e for over 25,000 miles, pushing over 10psi.

the tranny made it to 202,000 miles before i pulled it out, and it was still kicking and shifting very good. the TC was just shit and whining non stop.

i currently am running a 1999 4t60e, pushing 15+ psi before storage this winter.

i dont know what everyone else is doing wrong, but the 4t60e can take some punishment.

and i do not take it easy on my car.

yea, but how much weight are you hauling around?

And that said, correct me if I'm wrong (and I probably am), considering the E was behind more powerful engines it probably has a slightly better build than just an old 4T60.

[germ]

its behind a 96 monte carlo

~3400 pounds

[germ]

oh, and i am about 250 lbs myself

so its about ~3650 pounds

[TurboSedan]

i'm putting down 227hp & 325 ft/lbs at the wheels and my Getrag 282 is holding up just fine. even the never-been-rebuilt 250,000 mile LH0 shortblock is handling it no problem. traction in 1st and 2nd gear is a huge problem though. V6 L-body 282 gearing would be better but unfortunately the case prevents using it in a W-body.