Fuel Injector Question...
Without knowing the BSFC on a nitrous app, Id venture to say 42's would do fine for 400rwhp... I personally maxed a set out making 453rwhp with a supercharged stock LT1 through an M6. SC motors take more fuel than nitrous motors so the 42's would support even more hp for you than they did for me. Knowing how mine worked out, I did better with a Walbro 255lph High Pressure in-tank pump than with the in-line booster. It would drop pressure at the high end with the booster installed after the stock pump, once swapped to the high output in-tank pump and booster removed, the pressure drop stopped.
Any luck on the common BSFC for a nitrous motor?
BTW... BSFC= Brake Specific Fuel Consumption for those who did not know that.
N/A apps =.5bsfc
F.I. apps =.6bsfc
N2O apps = ??bsfc
Any luck on the common BSFC for a nitrous motor?
BTW... BSFC= Brake Specific Fuel Consumption for those who did not know that.
N/A apps =.5bsfc
F.I. apps =.6bsfc
N2O apps = ??bsfc
[QUOTE=Fire67]moehorsepower- The only way I could see injectors dropping in flow is contamination. They may get a little slower over time from wear, but if the owner consistantly runs good gas the should not get restricted... But if gas has been let to gum up, then a reduced flow would be noted by increased duty cycles. Just like BurningRubber said above, it doesnt mean bigger is neccessary, just clean or replace.
I don't see where I say you need larger injectors because of high mileage, I say with higher mileage engines with the same injectors the duty cycle goes up because of the wear, As you stated "They may get a little slower over time from wear" this is exactly what I am talking about, they get slower so the duty cycle increases to keep the same amount of flow needed to establish the commanded A/F. I can tell you that what I say is not what I heard, read or from someone else telling me, This is from my personal experience tuning cars for the past several years, People think that when the spark plugs are all carbon fouled up that just because they clean them and they look like new they perform the same, this is not the case, I am saying the I would go with larger injectors because of the spray....I also agree not to waste your time with the 30lbs just go up to 36 or 42lb
I don't see where I say you need larger injectors because of high mileage, I say with higher mileage engines with the same injectors the duty cycle goes up because of the wear, As you stated "They may get a little slower over time from wear" this is exactly what I am talking about, they get slower so the duty cycle increases to keep the same amount of flow needed to establish the commanded A/F. I can tell you that what I say is not what I heard, read or from someone else telling me, This is from my personal experience tuning cars for the past several years, People think that when the spark plugs are all carbon fouled up that just because they clean them and they look like new they perform the same, this is not the case, I am saying the I would go with larger injectors because of the spray....I also agree not to waste your time with the 30lbs just go up to 36 or 42lb
