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What Injectors Are You Using On Your Rb20det

allthewaytotheskyline
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RaZ_TuRbO Community Regular

RaZ_TuRbO

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Posted

FOG35, i made similar to you 260rwhp(195rwkw?) on 15 psi. But realistically, im after 300rwhp on 18-20psi, dont think a fuel reg is going to get me there, i think it will be sorted with fpr, gtr inject (already got a gtr pump).

raZ1911 Proficient

raZ1911

Posted
Posted
raZ1911 - yes a bad thing.

The computer will be firing the injectors at the same pulse width for all the injectors, so two larger injectors are going to let more fuel through in the same amount of time.

If there were such an ECU that could control individual injector pulse width - (MOTEC maybe?) tuning the thing would be a nightmare - you would want to be monitoring Air/Fuel ratios out of each individual cylinder to ensure everything was good.

oops should of made myself more clear i ment if you had say 800cc ones on a motor that doesnt NEED that much would it still do something? or should you just stick with only whats needed?

paulR32gtr Mentor

paulR32gtr

Posted
Posted

Ahh gotcha! You should choose injectors that match your application.

If they are too large you loose resolution at low pulse width - so your tuner will not be able to set the motor up to run as smoothly / efficiently at lower revs.

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