R18 to R20

HFP-CivicSI said:

You are way better supercharging your R18 if you do not want to go the way of the SI. I can tell you that dropping IHE+tune in your r18 will disappoint you if you go drive a regular SI. Your really missing out what a special motor the k20z3 is. I'm making 360hp with a Kraftwerks SI, and I have been smashing on cars left and right that are way out of IHE+tune SI's league. It's almost too much fun.

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HFP-CivicSI said:

You are way better supercharging your R18 if you do not want to go the way of the SI. I can tell you that dropping IHE+tune in your r18 will disappoint you if you go drive a regular SI. Your really missing out what a special motor the k20z3 is. I'm making 360hp with a Kraftwerks SI, and I have been smashing on cars left and right that are way out of IHE+tune SI's league. It's almost too much fun.

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vinh92117 said:

Okay, first off, I own a 07 Civic Si. I never said the r18 is stronger than the Si, I only said that turbo is more suitable for the r18.

Supercharging the r20, in my opinion, is a much better option for the si, only because it can only handle so much psi ( again, due to vtec). You'll blow your engine if you have too much pressure with turbo ( and also superchargers, but it's much safer with superchargers).

There's a reason why evos and imprezas can handle 20+ psi and our engines can't. Do not get me wrong, I love my car and engine in every way, but I am no bias to only my 07 Civic Si sedan.

I have spent a year debating on whether I should go turbo or sc, so don't think that I haven't done research on this. Turbo is doable on a r20, yes, I have never denied that.

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