We have seen the advantages of MIVEC tuning on stock cams/turbo combination. What would be the ideal setting/tuning method when you upgrade to a bigger turbo? ie: FP Green/Red.

Would it be less advance on intake, but more retard on exhaust on more top end power? what is the ideal overlap?

Thanks!

 

You have the right train of thought. Less intake after the turbo is fully spooled with more exhaust retard all the way to redline.

 

I found that a bit more exhaust retard at 6000+ rpm's helped power 5-10 whp, I tried reducing intake advance earlier and it lost power though. Could be I changed too many settings at once. The best place is on a dyno, start with good settings then make +5 and -5 changes to either the intake OR exhaust and see which direction seems to make power at any one RPM. It may take some time but you will get really close to the best setup.

 

my setup likes a ton of overlap at spool up and slowly brings the exhuast cam and intake cam away from each other(closing in on zero advance indicated) by redline