AP Stg. 2 ......Need some feedback plz.

V8killaREX · 07-29-2006, 08:39 PM

05' WRX
AP Stg.2 OTS Map
Cobb catless turbo-back
Turbo XS shorty intake(put on to see what it's like...no check engine lights)...sound is

...why the hell would you want an aftermarket blowoff valve when you got a shorty??!??

It sounds EXACTLY like a blowoff vavle...but not as loud/less annoying.

I had my friend in the car reading live boost off of the Accessport as I did some pulls.

I'll try to be as accurate as possible as I don't remember EXACT figures on some of the pulls.

1st gear: 12.8psi
2nd gear: 14.8psi
3rd gear: 15.9psi
4th gear: 16.1psi
5th gear: 16.5psi

These are some pretty damn good numbers for being OTS. The car pulls like a mofo...and ever since I went Stg.2 it's been ~90 here in Chicago w/extreme humidity. I'm a FIRM believer in protunes, but I'm wondering how much I will gain with these numbers I'm already pushing. I know area under the curve will definitely be better which is what I/you want. For my protune I will have added an up-pipe and intercooler hoses.

Another question is in regards to porting the turbo...is this neccessary???
I did it on my previous WRX. From what I've read it is to prevent boost creep.<---How come Cobb says nothing about having possible issues w/boost creep?

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JOWEE · 07-30-2006, 10:57 AM

I had to have the wastegate ported on my car to prevent boost creep, and i also had to do a pro tune due to the fact that my stage2 map OTS was causing detenation. Go see Jorge at P@L, he will take care of you.

WRX2FFU · 07-30-2006, 11:03 AM

Stock wrx turbo's have little problem with boost creep. Sounds pretty good. Numbers may improve a little after some learning. A protune will get you a little better numbers but will smooth things out more. IMO a protune is not really worth it for a stage 2 vehicle. Get a bigger turbo, Topmount and other supporting mods before you invest in a protune. IMO

If your not gonna mod any further though a protune would be a good idea. Also with ots maps i would get an egt gauge.

07-29-2006, 08:39 PM	#1
V8killaREX Scooby Newbie Member#: 84344 Join Date: Apr 2005 Chapter/Region: MWSOC Location: Chicago Vehicle: 04 WRX WRB (R.I.P) 05' WRB WRX PREMIUM PKG.	AP Stg. 2 ......Need some feedback plz. 05' WRX AP Stg.2 OTS Map Cobb catless turbo-back Turbo XS shorty intake(put on to see what it's like...no check engine lights)...sound is ...why the hell would you want an aftermarket blowoff valve when you got a shorty??!?? It sounds EXACTLY like a blowoff vavle...but not as loud/less annoying. I had my friend in the car reading live boost off of the Accessport as I did some pulls. I'll try to be as accurate as possible as I don't remember EXACT figures on some of the pulls. 1st gear: 12.8psi 2nd gear: 14.8psi 3rd gear: 15.9psi 4th gear: 16.1psi 5th gear: 16.5psi These are some pretty damn good numbers for being OTS. The car pulls like a mofo...and ever since I went Stg.2 it's been ~90 here in Chicago w/extreme humidity. I'm a FIRM believer in protunes, but I'm wondering how much I will gain with these numbers I'm already pushing. I know area under the curve will definitely be better which is what I/you want. For my protune I will have added an up-pipe and intercooler hoses. Another question is in regards to porting the turbo...is this neccessary??? I did it on my previous WRX. From what I've read it is to prevent boost creep.<---How come Cobb says nothing about having possible issues w/boost creep? * Registered users of the site do not see these ads.

07-30-2006, 11:03 AM	#3
WRX2FFU Scooby Specialist Member#: 73872 Join Date: Nov 2004 Chapter/Region: MWSOC Location: 6 ft from hell Vehicle: EJ25 ,EJ22,EJ20,EA82	Stock wrx turbo's have little problem with boost creep. Sounds pretty good. Numbers may improve a little after some learning. A protune will get you a little better numbers but will smooth things out more. IMO a protune is not really worth it for a stage 2 vehicle. Get a bigger turbo, Topmount and other supporting mods before you invest in a protune. IMO If your not gonna mod any further though a protune would be a good idea. Also with ots maps i would get an egt gauge. Last edited by WRX2FFU; 07-30-2006 at 11:08 AM.

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07-30-2006, 10:57 AM	#2
JOWEE Scooby Newbie Member#: 103092 Join Date: Dec 2005 Chapter/Region: MWSOC Location: Lakemoor, IL Vehicle: 06 sti steel grey	I had to have the wastegate ported on my car to prevent boost creep, and i also had to do a pro tune due to the fact that my stage2 map OTS was causing detenation. Go see Jorge at P@L, he will take care of you.