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beepbeep beepbeep is offline
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Join Date: Jun 2001
Location: Sweden
Posts: 5,682
Hmm...frankly, I don't see anything suspicious with making 360 fwhp at 0.7 bar.

Short-lived 964 3.6 single turbo engine used K27, boosted around 0.7 bar, had good intercooler and was making 360 fwhp. Your engine is roughly the same but 0.2L smaller but equipped with twin plugs. You are making 60hp more than OEM engine using same boost and 0.2L more. That's expected.

You did all mechanical homework right but I assume you still use narrow and badly flowing CIS intake and are still limited by CIS barn-door.

Higher C/R pistons will give you better off-boost response but won't do much for top power. Also, you need to solve the fueling issue and when that's done, you have to maximize torque by carefully mapping the ingnition timing.

So you either keep your CIS and drive around with perfectly safe 360hp or you walk the line and fit EFI. It would make ignition/fueling issues much easier to work with and give you additional headroom. Mechanicals are there but now you have to work with induction.

Going further with CIS is going to be expensive.

Thank you for your time,
Old 03-27-2008, 08:04 AM
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