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Discussion Starter · #3 ·
The reduction in overlap is closely related to the turbine restriction. A bigger turbo, or one with a larger A/R ratio will create less backpressure at high revs, so there will be less need for reducing the overlap - if at all. The reduction of the dynamic CR is also related to the static CR and the maximum boost achieved. If boost is kept below 20psi and 8:1 pistons are used, then there may be no benefit in further reducing it via cam timing. Setting2 is meant for stock engines running high boost.
 

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So i take it your no longer on standard comp? What spec are you running? iirc reading another thread your close to standard,therefore i can definatly see the xe inlet releasing a few extra hp and making the engine happier at high rpm.
 

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Yes but it needs to be dialled in,running on the standard timing marks will produce little gain(almost unoticable).
 
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