[randy]

Buying the BL67 P-trim .68 A/R with anti-surge cover... also going to be using 264in and 264ex cams... would this turbo/cam setup require a raised rev-limit? I can seem to rev a little over 7000 rpm with my stock ECU?

Thanks

 

[silvino]

Your stock tach is probably off a little and that's why it looks higher than it is. Requiring and wanting a raised rev limiter are two different things. On my car ant this turbo, I shift at 7600rpms or so because I'm still making great power. I don't know if that limit would rise once I add the VW intake manifold. I would guess you'll want at least low 7K rpms to maximize your powerband for this turbo.

 

[randy]

So would it be advisable not to use the 264 cams? Since they would push the power band higher in the RPM range?

 

[jaynite]

how high can you raise the limiter before you need to upgrade the valve train? jay

 

[Syed Shah]

Randy, a raised rev-limit always helps by increasing the size of the powerband. It is upto you and your driving style to determine if it is necassary.

Personally I think a 7500-8000rpm limit would work well providing it is catered for (cams help this not hinder it).

 

[silvino]

Yup, if the motor or turbo doesn't support good airflow at those rpms then it's pointless.