Originally Posted by Bulldogger
The problem with increasing the pressure is the seals where the injectors attatach to the rails plus when you approach redline fuel rail pressure drops now you lift off and you are slamming the system with more then 82 psi. Pressure is going to cause something to pop off or start leaking.
Bulldogger, i know you swear by the sl55 pump and say its the increase in volume that makes the difference, not the pressure.
Am i understanding you correctly that your saying the factory fpr is not a factor when running lean,and that 60psi fuel pressure is sufficient at all load and boost levels?
If this is the case, do you agree that 2 Walbro 255's routed in parallel would be as effective or more effective than the sl55 pump? It might even run too rich, but if what your saying is correct then this would settle it and prove more VOLUME is the answer.