20vseven
New Member
- Messages
- 22
- Location
- Christchurch, NZ
I have upped the boost on my M90 supercharged 1uz from 7 to 11 psi. Good improvement in torque and power at lower revs but this falls away markedly above about 3500 rpm. Peak power before was 190 kW, now 200 rwkw - about the same as a stock LS1 on the rolling road I used.
I believe the reason for the drop in improvement is due to the heating from spinning the M90 so fast! There is no space for intercooling so water injection is the next thing to try.
I see several people have run various systems. Wondering if they have any before/after comparisons re air temps or power?
I believe the reason for the drop in improvement is due to the heating from spinning the M90 so fast! There is no space for intercooling so water injection is the next thing to try.
I see several people have run various systems. Wondering if they have any before/after comparisons re air temps or power?