How much hp can the stock tranny take?
 

i have started my new project and am wondering how much hp the stock tranny will take? im going to be running the hellion T-76 turbo kit and plan on running high boost.i dont know if the tranny will hold up

Re: How much hp can the stock tranny take?
 

I would say 400 to maybe 450 any more and your pushing its luck.


LS:claus:

Re: How much hp can the stock tranny take?
 

They break on stock motors.....

Re: How much hp can the stock tranny take?
 

ive seen guys with that power, im guessing 500 because i see 475RWHP machs all the time with a stock tr-3650

Re: How much hp can the stock tranny take?
 

very true aswell, buddy of mine broke his with a 260RWHP bullitt. i guess its the abuse and luck :butt:

Re: How much hp can the stock tranny take?
 

x2 on abuse. i've seen a 3650 outlast motors in 600hp applications.

im going to keep my stock 3650 after my rebuild this winter, and I plan to make 700+

and if it blows up? pfff...only money:smokin:

Re: How much hp can the stock tranny take?
 

So im pretty much fine as long as i dont beat the crap outta the car driving it all the time

Re: How much hp can the stock tranny take?
 

Re: How much hp can the stock tranny take?
 

26 spline input...good to go

Re: How much hp can the stock tranny take?
 

On threads like this, the first thing I wonder is what transmission we are talking about. Did I miss that part? I looked over the thread several times and haven't found that info yet.

At this point I am only assuming that it's a manual since the people replying seem to have made that assumption as well and not been corrected.

Not trying to be an azz, but it really helps to know as many details as possible when trying to help answer a question.

Since I work on automatics and it hasn't been specified which we are really talking about yet, I will tell you about that end of it. As mentioned, the stock transmissions can be broken on stock power levels and that goes for both the manual and automatic. The 03 automatics are definitely weaker than the 04's for sure. The 04's can definitely handle a mild power adder without much trouble, but not so much with the 03's. Some can and some can't. It's a crapshoot. But, I wouldn't want to put a power number to it because I have seen some break with stock power and some live with more than 600rwhp.

A lot of it truly depends on stuff outside the transmission including everything from and between the tires to the driver. If you want peace of mind then the only way to go is to build everything to handle more than what you plan on asking of it.

Darrin

Re: How much hp can the stock tranny take?
 

Assuming it is a 5-speed TR3650, mine is still working just fine. As a matter of fact, it's the sole remaining stock part left in my entire drivetrain!

Re: How much hp can the stock tranny take?
 

I don't know about you guys but I been beating my car with 502 torque and 465 and my tranny is fine. I don't even hear my clutch grinding. Also my friend on his 01 cobra with 750 rwhp has the stock 3650 with a stage 3 clutch and hes raced a couple of times and its fine. I believe is the shock load. I don't think our tranny can hold from the dig but on the highway roll they be fine.

Re: How much hp can the stock tranny take?
 

The only thing I have changed is my input shaft...and repaired 5th gear after I broke it...too much boost for little bitty 5th gear :(

Re: How much hp can the stock tranny take?
 

sorry i was talking about the 3650.

Re: How much hp can the stock tranny take?
 

Stay away from the Spec 3 clutch and the 10 splined input shaft.....

Re: How much hp can the stock tranny take?
 

I don't doubt it, Mine sucked as soon as I got it, took it to the dealer and found out it was rebuilt 4 times, Told them nevermind dont bother working on it, scraped it and went T-56

Re: How much hp can the stock tranny take?
 

Blew my 3650 synchros when my car was bone stock, 36k miles.
Rebuilt the trans, INSTALLED AN MGW SHIFTER
Blower went on at 52k car makes ~430rwhp/400tq SAE
Started to get 3rd gear lockout, did clutch quadrant/FWA, fine now
95k miles on it now and I beat on it daily still have original factory clutch

Re: How much hp can the stock tranny take?
 

I just put a mcleod stage 3 clutch in mine holds up to 550hp. and i got a adj quadrant to. so i hope i will b fine.

Re: How much hp can the stock tranny take?
 

you need to be worrying about your 28 spline rear tho

Re: How much hp can the stock tranny take?
 

Already built. and plus i have a race car. this will just b my street car i wont take it to the track and beat on it

Re: How much hp can the stock tranny take?
 

the life on these is all about proper clutch engadment. if the clutch is adjusted correctley it lengthens the life greatly.... plus the stock auto quadrant setup is garbage anyways. get it out of there!!

now as far as 4th gear pull getting traction ide say in the area of 600rwTQ would be where the input shaft will twist...

Re: How much hp can the stock tranny take?
 

Make sure you get it in gear when shifting and get an aftermarket quadrant/adjuster and you'll be fine. The only time you hear about transmission issues its because of the shitty quadrant setup or because people need to learn to shift.