R33 Rb25 Vct .

[discopotato03]

Hi all , someone here mentioned that R33's are set up so the overlap is closed up for idle then opens up till about 4700 and closes to reduce reversion .

I remember reading an article a few years back about JWT remaping an NA CA18 computer and noting that power fell off up near the red line . In this case the cams were opening up (reducing overlap) and the power falling off most likely to convince people to change up .

I'm wondering how alterations to an RB25DET ie mild cams and efforts to reduce "backpressure" are affected by the std cam changeover points . I'd reckon the change back up high would not do any favours if there was not a lot of exhaust manifold pressure in relation to boost pressure .

Has anyone played with the change points and gained anything worthwhile ?

Cheers A .

[discopotato03]

Sorry , this was ment to be in forced induction .