Evo 9 Turbo swap, Tuning??

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Jan 22, 2011, 08:32 AM

#16

erald01

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yeah right now its on stock boost, i am sure ill be fine. I talked on the phone with a few shops and they told me ill be fine, even though the evo9 flows more air the stock selenoid (oem boost) is set for an evo 8 so the boost will still be at 19.5 psi tapering to 16 psi by 6500 rpm. Evo 9 turbo runs at 20 psi tapering to 17 psi by 6500 rpm.

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Jan 22, 2011, 12:55 PM

#17

mifesto

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Quote:

Originally Posted by erald01

I thought it would not be a problem due to the fact that the evo 8 vs evo 9 turbo is not that difference on oem set up. The evo 9 turbo only boosts 2 psi more..

its not about what psi it runs, its about flow. you have an '03 so an '05 hotside only is a minor step up. a evo9 turbo has the 10.5 outside(05's evo8 had them) AND also the bigger compressor side. so combine those two, its not "minor". either way just dont beat on it yet.