problem with new turbo... stock exhaust?

[Jason84]

well i have a PTE GT32E on my galant.. still stock exhaust (but its on order) but after about 4500 rpms it doesnt really pull much and kinda stutters.. i only did this 3 times (dont wana wreck the turbo) and the stock MAS is maxing out (VPC injectors and everything are going in this weekend)

is this just because of the stock exhaust ? im only running factory set boost on the turbo (10 lbs)

 

[project_tsi]

your stock exhaust has alot to do w/ it. replacing that stocker w/ a turbo back 3" will give you a world of difference. It will probly pull hard all the way to redline. Also get your self a 2G maf and possibly a 3" intake pipe. Put on some 650 injectors, walbro 255 pump and safc should suffice fine for tuning it. youll easily be a 12 sec car. BTW how is that PTE GT32E working out? im thinking about buying one. where did you get it and how much? thanks, dan

 

[Mindslayer]

Your exhaust is giving you the problem. Til you get your exhaust and don't mind a loud car take off your cat. I am running scm60 at 15 psi and I'm not overrunning my mas yet. And I have 450 cc injector and I think a stock pump. But I'm getting 0-1 knock and 20 degree timing at 15 psi. So nothing but the ehaust is killing you.

 

[L2RTSiAWD]

Exactly, Your choking the power. I'd take it easy until you get the rest on.

 

[Jason84]

alright just wanted to double check thats what it was...

ordered my certified muffler 3" SS turbo back just gotta find a nice o2 housing and manifold..

and ive already got a walbro 255 with full -6 braided SS fuel line aeromotive AFPR and aeromotive fuel filter.

HKS VPC and GCC is going on this weekend along with 680 cc injectors.

then probably gonna sit till i get my exhaust

 

[EdwardNorth]

It's amazing how much of a difference supporting mods make to a turbo upgrade. When I installed my EVOIII 16G last year, I was still on the stock SMIC and Injectors (though I did have a Walboro 190 pump). The car actually felt SLOWER than the T-25 at the same boost as I was running the T-25 on (15 lbs.). My power potential was being suffocated first and foremost by the stock SMIC.

I then installed a Dejon Tool Super-Big Sidemount and WHAM!! I felt the beginning of the E316G's power potential and it put a smile on my face. Just this past weekend I finally installed my FIC 650cc injectors and S-AFC II, cranked the boost up to 21psi, did some pulls with my DSMlogger and set in a good tune and HOOOOO BOY this car sure pulls like a raped ape now!

My point -- a Turbo upgrade is only as good as the mods that support it.

Hope your installs go smoothly and enjoy the new power!