WebAug 16, 2024 · At any given level of fuel knock resistance and charge air temperature you need to run Less boost, richer AFR, and more retarded spark as compression ratio increases. This is spark ignition combustion 101. Making 400hp revving to 8600rpm tells you a lot right there. Power is a function of torque and speed. WebNov 19, 2006 · The reason you lower your compression ratio is because of the octane required to prevent detonation. If you tried to run a 10.5 to 1 motor on 20lbs of boost you'd have to run racing gas to prevent detonation. What happens is the inlet air temps will rise when you compress the air more. Thus intercoolers and methanol injection systems.
boost compression and pump gas Hot Rod Forum
WebJan 26, 2024 · E85 pump fuel offers an anti-knock index (AKI) rating of roughly 100 octane, which is far better than any pump gasoline. This might encourage you to raise the static … WebFeb 9, 2008 · So a PSD with 25psi boost is 663psi. 15psi boost on an IDI computes to 603psi. So you are really getting to the same pressures inside the combustion chamber … memorial car decals cheap
Is There A Dynamic Boosted Compression Guide to E85 or...
WebMar 28, 2024 · Static compression ratio of 10.6:1. Effective stroke is 2.98 inches. Your dynamic compression ratio is 7.89:1 . Your dynamic cranking pressure is 157.03 PSI. Your effective boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of PSI is 7.89 :1. V/P (Volume to Pressure Index) is 143 Inlet Valve Closes ABDC: 70 I have ... WebEffective Comression Ratio (ECR) = ((boost / 14.7) +1) *cr Where: Boost = Max Supercharger Boost (psi) 14.7 = Atmosheric Pressure @ Sea Level (psi) CR = … WebDec 21, 2011 · Static compression ratio of 11:8:1. Effective stroke is 2.75 inches. Your dynamic compression ratio is 8.31:1 . Your dynamic cranking pressure is 167.00 PSI. Your dynamic boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of PSI is 8.31 :1. V/P (Volume to Pressure Index) is 141. memorial card messages