Hey everyone

I wanted to get some information on how the stock Auto transmission will handle a supercharger running @ 11 PSI. The tranny has about 144 xxx KM's on it so its still decent. My plans are to have it on the car for about a month or less (as its whats on the car right now) then swap out to my Manual tranny. Can the auto handle say 300whp? I don't have any intention of building an auto tranny. Just want to get some info from others who have used the stock auto tranny with a supercharger.

Also that being said, my manual transmission is on the side right now and would like to rebuild it, new syncro's seals etc. A tune up as its at 260 xxx km's. Any kit I could buy? I know the tranny has alot on it but it was smooth, gears went in nicely etc. Or would it be cheaper just to buy a tranny with lower km's if possible?

If it this helps in any way:
V2 Supercharger
3.125" pully ~11psi
3" charge piping
Intercooler
600CC injectors (deatschwerks)
Z32 MAF
EU

Thanks for any information possible and sorry if I placed this in the wrong thread area!

 

Considering its a SC and lack of torque, at 300whp you should have a tranny for a long time only if, you have a real good tranny cooler, synthetic ATF (mobil1 or amsoil), and drop resistor mod(plenty of post about it). These auto's are strong believe it or not, let me put it to you this way, I got a Built 3.5 turbo charged 15psi on an auto that JUST gave up after 5 years of serious abuse with nitrous, turbo 3.0(312+whp for 2 years), and now built turbo 3.5.

The KEY is to keep the temps really low, and dr mod.

 

Glad to hear they can handle power. Although Ill prolly keep it as it came from the factory just because the manual tranny will go in within the month. I wont take this tranny to the drag strip, though it will get some sort of abuse . I might prolly do the resistor mod. I appreciate your help/comment Streetz! Thanks

 

i wouldnt say they are strong, but if you do some upgrades they can handle some power. i was on my third trans(5spd) before i got my current car.