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Old 07-03-2004, 12:52 AM   #1
Scooby Specialist
Member#: 15854
Join Date: Feb 2002
Location: Upstate NY
2002 WRX

Default Cobb stage 2.5 map with VF30 install

AP is scheduled to arrive on 12th of July. However, VF30 install is scheduled on 10th of July.

VF30 includes install of STi injectors and Walbro FP. What would happen if I were to drive the car with Cobb stage 2 map for several days if driven gently?

What's your thought on this? (double post at engine management)
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Old 07-03-2004, 01:52 AM   #2
Scooby Newbie
Member#: 33460
Join Date: Feb 2003
2003 WRX Wagon


Undesireable as that is, I think you are OK as long as you avoid anything more than just a few PSI of boost and stay off of boost as much is possible.
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Old 07-03-2004, 05:03 PM   #3
Scooby Newbie
Member#: 40661
Join Date: Jul 2003
Location: Abilene, TX
2002 Imprezza WRX
WRX Blue


After I had my VF-34 turbo installed, there was a delay until I could get the injectors installed.

The main worry in this situation, as I understand it, is maxing out the stock injectors. Therefore, I drove it, but always watched my boost gauge and always kept it at 5 psi or less.

After a while, I could drive it easily and consistently this way.
I put a few hundred city and highway miles on it this way. There don't seem to be any problems yet.

Now I finally have the injectors in, so I can let it boost again.
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Old 07-03-2004, 06:02 PM   #4
Scooby Specialist
Member#: 18801
Join Date: May 2002
Location: Bellevue, WA
1994 Toyota Supra


Yeah, but he's not gonna be riding on stock injectors. IIRC you'll be okay as long as you stay under 4k RPM, otherwise the engine starts to sputter bad from the STi injectors, and all the extra flow.
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