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Old 03-17-2010, 12:31 AM   #1
ishmael wrq
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Default Already Modded with pump or injec?

This past december i bought a Wrx and I plan on converting it to e85 after semester 2 ends so i'm looking into the fuel system upgrades needed for it. But i'm wondering if my car might already have them? It runs 17-18psi in 2 and 3 gear, and i seems to be tuned. My question is, is there a way of knowing if it already has had any of these things changed, or because of the boost/power its making does it mean it should already have them?
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Old 03-17-2010, 12:40 AM   #2
djdimensions
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Quote:
Originally Posted by ishmael wrq View Post
This past december i bought a Wrx and I plan on converting it to e85 after semester 2 ends so i'm looking into the fuel system upgrades needed for it. But i'm wondering if my car might already have them? It runs 17-18psi in 2 and 3 gear, and i seems to be tuned. My question is, is there a way of knowing if it already has had any of these things changed, or because of the boost/power its making does it mean it should already have them?
take it to a local tuner! if it makes 17 PSI it has a tune on the car. Doesnt mean its protuned!
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Old 03-17-2010, 01:43 AM   #3
ishmael wrq
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but does that mean it already has a larger fuel pump? or bigger injectors?

Last edited by ishmael wrq; 03-19-2010 at 12:07 AM.
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Old 03-19-2010, 12:09 AM   #4
ishmael wrq
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would a tuner be able to tell me what size pump and injectors i have?
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Old 03-19-2010, 12:12 AM   #5
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You could do that yourself, with some time and tools.
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Old 03-19-2010, 12:26 AM   #6
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Is the turbo stock Tdo4?? if not the injectors have been changed
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Old 03-19-2010, 02:35 AM   #7
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Most accurate way is to look at those components for model #'s and compare against a photo of stock part.

I think with a log, a tuner would be able to tell if you have modded/bigger injectors and they know their maps and they will see you are spitting out more fuel than their map is set for. This is ofcourse only true if their tune is based on stock injector.
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