Quote:
Originally Posted by KingLT1
That's not how it works. They flow +30% more then a LT4 injector at 2800psi. You won't get that flow if your fuel supply to the injectors isn't up to par and the pressure drops low enough where the injectors open up past the point of safe injection(6.4ms). Normally the last thing that needs changed on a LT4 system is the injector. Low side usually goes first, then high side, then injectors.
Low side solution(s)- JMS booster, Aux fuel pump, For innovations intank pump.
High side- Cam with bigger lobe, LPE DI pump with matching cam, or Katech belt driven DI pump.
All in one solution...Weapon X SPI port injection with low side pump.
It all comes down to power goals. I seen a ZL1 make close to 800whp on E85 with FIC +30, Cam wit 32% lobe, LPE DI pump, and aux low side. Meth and pump gas would get by with less fuel mods. Meth and Race fuel could make those numbers on the stock LT4 fuel system. So a lot of it has to do with the type of fuel you plan on running as well.
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I was able to hit 800whp but ran out of injector. I think that I could simply add these injectors and run 800whp on pump e85 (which is really about e70 where I live).
I am running a voltage booster with the full LT4 fuel system. No aux system and no alky injection. To go over 800 I would have to add alky or race fuel to lower the injector requirements. The other option was to add something like the 30%+ injectors...not sure what limit I would hit next.