HP question
Thread Starter
Heel & Toe
Joined: Apr 2004
Posts: 23
Likes: 0
From: Merrimack NH
HP question
I have a 90 coupe, 6 speed and was wondering how much hp the tranny and rear end can take? I am in the process of building a 383 for it and don't want anything to break. 
Team Owner
Joined: Sep 2001
Posts: 62,067
Likes: 1,723
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Its not the HP that breaks things, its torque.
It shouldnt break the ZF or the D44, but youll roast the clutch soon enough.
It shouldnt break the ZF or the D44, but youll roast the clutch soon enough.
Instructor
Joined: Sep 2004
Posts: 210
Likes: 0
From: peoria il
i ahve a 91 and i am putting in the gm zz383 crate motor 425hp/460tq and i am having a chevy dealership install. the manager is a friends dad and he has had vette for 20 years and has done alot of vette mods. he assured me that the tranny would be fine i just have to install a 2000 stall converter. so your tranny should be fine good luck
Melting Slicks
Joined: Jun 2004
Posts: 3,032
Likes: 4
From what I've read, and been told-
The D44 will hold up to just about anything,
The D36 will hold up until you start combining a lot of torque with Drag slicks...
all long as the tires can spin you should be fine...
at least from what I've read...
The D44 will hold up to just about anything,
The D36 will hold up until you start combining a lot of torque with Drag slicks...
all long as the tires can spin you should be fine...
at least from what I've read...
