JPR AutoSports


I’ve been speaking with Geoff and Jon over at Full-Race. Chris, head tuner at EFI Lggics, indicated I should touch base as Geoff has developed some incredible solutions for the Evo X. Specifically, I wanted to discuss their manifolds as the Evo X stock exhaust manifold isn’t bad but flow could be improved, and Full-Race has done the right research to determine how to maximize the air moving from the motor to the turbo (remember, the hot exhaust air spins the turbo, which makes more air for the engine to breathe). Here’s some pics comparing the stock manifold to the Full-Race manifold.

Beautiful work. Geoff and Jon are great to work with and forgot yesterday more than I’ll ever learn about engines and exhaust flow. My new manifold arrived yesterday and will get bolted in with cams and springs (with any luck) in late March. The idea here is to improve the flow and provide EFI Logics the flexibility to meet my HP limits on pump gas. This should save a ton of money and actually increase engine reliability by running on lower boost. Needless to say, I’m excited – Hats off the Full-Race for an impressive piece of craftsmanship. If you haven’t yet, check them out.

Here are some Dyno results showing the benefit of the manifold over stock.

Image Source,Photobucket Uploader Firefox Extension

by John on Feb.18, 2011, under Projects and Modifictions

2 Comments for this entry

  • Simon

    No more race fuel? A good thing looking at how the oil markets have been lately.

    Nice top end gains from this, can’t wait to see the car again after all your changes.

    Making a few adjustments to my car as well, although not nearly to the same extent. I was excited just to be installing my stud kit yesterday.

  • John

    Yep, I will probably tune for a couple of different octanes, but I’m shooting for the same HP, a bit more tq all on 93. The hope is that cams, springs, manifold, head studs will do it. If not, I’ll bump the octane and mix, until I can get there…

    Car is at the cage builder now. I’m sure hoping it all comes together, at this point it is hard to imagine.

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