MicroSquirt.com read only forum (Jan.15,2018)

DJ Kill wrote:
Why is maximum advance for further timing calculations (for boosted or NA engines) is assumed to be reached at 3000 rpm and not at higher rpm?

same question :why 3000 rmp? on a suzuki swift i have set the redline to 8300 rpm and i dont understend why a flat map from 3000 rpm to 8300 rpm

Finally, for boosted engines, you subtract 0.3° of advance for every kPa above 100 (it's not a coincidence that this is the same factor as for the 'vacuum' adjustments). Because 101.3kPa=~14.7psi, this works out to ~2° per pound of boost. It is often the case that you want to limit the retard ...