Going from VS 1 to VS 2, how to tune

MikeWRX-NJ · 09-15-2003, 11:04 PM

Hi all ,

my 03 wrx is going through some changes this weekend.

I have installed in the car now:
stealthback w/cat
prodrive muffler
gruupe-s uppipe
samco IC hoses
vishnu stage 1

I have sitting on the floor of my room: (in order from intake to exhaust)

vf34 with deadbolt "monster" P & P
STi TMIC w/scoop/splitter/seal
STi injectors
gruppe-s headers w/thermo-tec header wrap
i'm going to wrap my uppipe also.
perrin crank pulley
catless section for the stealthback.
walbro fuel pump.

I know these are some MAJOR changes to my system. I DO have delta dash and I have some small idea about tuning.

I am going to have my car tuned on the 5th by Shiv in CT but I don't want to blow up my engine from now till then. BUT I want to have enough time from the hardware installs until he comes just incase I have leaks, problems ,etc.

So far all I can figure is to bring the boost down low <10psi and try to stay out of it.

So any ideas? I have some logs of my current setup if people want to see them?.

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MikeWRX-NJ · 09-16-2003, 11:17 PM

anyone?

either i have the right idea or no one knows what i should do.

slowmike · 09-17-2003, 11:33 AM

I have a similar situation. Vshnu stage 1 and upgrading to a VF34. I plan to add more fuel, how much I don't know yet, and because I have water injection I will increase that volume as well. I will probably start off with less boost as well but I'm thinking more like 14- 15 PSI. Since I already had the reflash with the STI injectors, Walbro and FP upgraded TD04 I will be a lot closer than your set up. When I installed my injectors and pump I mailed my ECU to Vishnu for a base map and then made an appointment for the dyno tune that way I knew I could safely drive the car.

09-15-2003, 11:04 PM	#1
MikeWRX-NJ Scooby Specialist Member#: 33410 Join Date: Feb 2003 Chapter/Region: Tri-State Location: wishing i was somewhere else Vehicle: 08 wrx dgm	Going from VS 1 to VS 2, how to tune Hi all , my 03 wrx is going through some changes this weekend. I have installed in the car now: stealthback w/cat prodrive muffler gruupe-s uppipe samco IC hoses vishnu stage 1 I have sitting on the floor of my room: (in order from intake to exhaust) vf34 with deadbolt "monster" P & P STi TMIC w/scoop/splitter/seal STi injectors gruppe-s headers w/thermo-tec header wrap i'm going to wrap my uppipe also. perrin crank pulley catless section for the stealthback. walbro fuel pump. I know these are some MAJOR changes to my system. I DO have delta dash and I have some small idea about tuning. I am going to have my car tuned on the 5th by Shiv in CT but I don't want to blow up my engine from now till then. BUT I want to have enough time from the hardware installs until he comes just incase I have leaks, problems ,etc. So far all I can figure is to bring the boost down low <10psi and try to stay out of it. So any ideas? I have some logs of my current setup if people want to see them?. * Registered users of the site do not see these ads. Last edited by MikeWRX-NJ; 09-15-2003 at 11:38 PM.

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09-16-2003, 11:17 PM	#2
MikeWRX-NJ Scooby Specialist Member#: 33410 Join Date: Feb 2003 Chapter/Region: Tri-State Location: wishing i was somewhere else Vehicle: 08 wrx dgm	anyone? either i have the right idea or no one knows what i should do.

09-17-2003, 11:33 AM	#3
slowmike Scooby Specialist Member#: 24890 Join Date: Sep 2002 Chapter/Region: SCIC Location: All I wanted was a Pepsi Vehicle: 2002 Jackwagon WRB GG	I have a similar situation. Vshnu stage 1 and upgrading to a VF34. I plan to add more fuel, how much I don't know yet, and because I have water injection I will increase that volume as well. I will probably start off with less boost as well but I'm thinking more like 14- 15 PSI. Since I already had the reflash with the STI injectors, Walbro and FP upgraded TD04 I will be a lot closer than your set up. When I installed my injectors and pump I mailed my ECU to Vishnu for a base map and then made an appointment for the dyno tune that way I knew I could safely drive the car.