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Originally Posted by J_Spec_NiTeMaRe
To make an engine spin faster, you have to lighten the spinning mass. This typically means a lighter valvetrain...titanium retainers, springs, rockers, etc. Upgraded cams help, and so does a lightened flywheel. Iv'e never seen any of those things for the KA, but for the SR or RB series it's relativley easy to acheieve a 10k redline. Even if you do all that to your engine, it's still going to be limited at 7-8k (redline of SR and RB) because the factory ECU cuts fuel at that point. By definition, your "redline" is where your engine makes optimal power, not a red notch on your tach. So there is extensive dyno tuning involved in raising your redline, a custom ECU is usually involved.
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Thanks but no thanks... you didnt anwser my question... I want to know if it can be done to a KA24de or better question has anyone seen this done... with the proper valvetrain can it be doen or is the engine just built for a 7000rpm MAX engine speed? I know what redline means... Or should I not even bother with the Ka and just get the Sr...