2.7 swap

[ike84]

Originally Posted by truegearhead

Thanks for reaching out over IM. As you know I put a 2.7l in my 2.5l car. You need to use the 2.7 intake manifold, and the 2.5l crossover and throttle body and the 2.5l wiring harness. The vacuum port for the second cross over can just be blocked. I used the factory 2.5l ecu. It dyno’ed at more power to the wheels then a 2.7 is supposed to make at the crank and ran great. If you need anymore help let me know, happy to help

Edit: I also used fuel rail and return system from the 2.5

I find this fascinating - any idea where the power came from? Did you get any afr readings? Maybe it was running lean and that's where the power came from? Maybe the resonance flapper is actually a handicap (the idea, while I understand the intended purpose, just seems absolutely ridiculous) and deleting it provided a smoother intake flow?

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