hardingfv32 wrote:This is completely wrong:
"The ECU in overrun mode, retards timing so that the combustion efficiency and the Mean effective pressure is greatly reduced. The engine now puts out the required 200 hp. The other 400hp of air and fuel is sent out the exhaust pipe."
Let's discuss the logic of your proposal:
First, I am going to ASSUME that we are after some serious off throttle air and heat flow. I am also going to assume that we want the throttle open 100% during the off throttle mapping to accomplish that. You said that you want 200 hp. We will need an decent A/F mixture to get the mixture to light. Then we will use the ignition to develop the hp number you want. The goal of the retarded ignition is to limit the combustion pressures to develop only 200 hp. The combustion process will be allowed enough time to create 200 hp before the exhaust valves open effectively ending the combustion process. Combustion pressure = HP. Since you never reach maximum combustion pressure you are not going to get the big high energy exhaust flows that you are proposing.
There will be no 400 hp of exhaust to feed the diffuser.
hardingfv32 wrote:You will notice there is no variable/input for time in the formula. When g (say, cornering force) is applied to the car you get WT. There is NO way to delay this.
hardingfv32 wrote:Why do I want roll?
Please articulate your disagreements.
I'll refine my assumptions: Dead smooth track, no tire flex or grip issues/effects.
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