Right now I have the procharger with 9psi pulleys and it is awesome. the power is great but now I want more.

Just wondering what the maximum amount of safe boost is on the stock block with procharger.

My setup is:

9psi pulley
440cc injectors
Utec w/ map sensor
walbro 255
custom 2.5" true dual with x-pipe


Also it is a 03' 5at. Do you think this setup is maxed out and I need to upgrade other things also?

also would any other pieces make a significant difference such as kinetix ssv, etc? don't want to put headers in again because I want to keep my car as quiet as possible.


Any advice is appreciated! thanks!

 

umm i believe that is the max you can run. but the search button is your friend

 

how much power u got and do u have a valve body for ur tranny?

 

I did a search and couldnt really find a definitive answer. I have found ppl say about 450whp is the max. and that 9psi procharger puts out 350 or so.

havent dyno'd yet and I don't have a VB upgrade. will the VB upgrade help power handling as well as reduce the drivetrain loss?

 

you should be okay

 

Generally exhaust does little if anything for supercharged cars (at least for the VQ). Also, unless you are doing a full build, or cams, I would not go for an SSV, which it is controversial whether that produces any gains different from a plenum spacer. Headers and test pipes will probably also make you run less boost = less power. Do some research on this and on the SSV. You should be fine with what you have.

If you have not done a valvebody upgrade and tranny cooler I would suggest that. Also, another good upgrade is to change your rear end gears. There is a guy on my350z who is running 15 psi off of his procharger setup, so you definitely aren't maxed, but you should do an engine build or meth install if you are going to be running any more boost (just to be on the safe side).

 

Yeah, I would like to stay stock block for now and not do an engine build yet. So I was just wondering what the maximum amount of boost was to run safely on stock block.

I think the VB mod, cooler and rear end gears would help me out some.

edit: was lookign into tranny coolers and couldnt reallt find anything. people just seemed to use a universal cooler and tap existing tranny oil lines??

also where would these lines be..

 

I guess it looks like a unanimous vote for the VB and tranny cooler.