So I have a question about how increasing the rpm while having the same size nozzles effects the hp. I understand that the nozzle size is the limiting factor on how much fuel in injected each cycle but how much does the rpm factor in?
Say that someone has a car with stock nozzles. The best I've heard from stock nozzles is just under 130hp at the crank. But this is never past 4500rpm it seems. I'm guessing the hot side on the stock turbo is already starting to choke the engine even at that low of power. So if the stock turbo was replaced with something that allowed for unrestricted flow to 6000 rpm and stock nozzles run with full fueling and a lift pump would I see a hp increase up to 6k or would it drop off much earlier without any increase in power? Does the pump start to inject less per stoke at higher rpms due to cavitation ect? Assuming sufficient air what else limits fueling besides the nozzles?
Say that someone has a car with stock nozzles. The best I've heard from stock nozzles is just under 130hp at the crank. But this is never past 4500rpm it seems. I'm guessing the hot side on the stock turbo is already starting to choke the engine even at that low of power. So if the stock turbo was replaced with something that allowed for unrestricted flow to 6000 rpm and stock nozzles run with full fueling and a lift pump would I see a hp increase up to 6k or would it drop off much earlier without any increase in power? Does the pump start to inject less per stoke at higher rpms due to cavitation ect? Assuming sufficient air what else limits fueling besides the nozzles?