Quote:
Originally Posted by Tiago
For the 550 upgrade, iirc only changed sc pulley, belt, intercooler, injectors, fpr and sw. It kept the 500 crank pulley. Maybe Z4M have different crank-sc combo for the same boost due to space issues.
I think you are seeing the same boost as mine around 1000rpm earlier. And you notice more the boost due to sooner torque.
Can you say how much boost would a 5.31 and 2.87 make at 8000rpm?  |
5.31 with 2.87 might make the supercharger spin above its max limit, I'd have to calculate...
I'd love to know what PSI you're seeing at 5000rpm