[quote author=smakdown61 link=topic=137644.msg2967734#msg2967734 date=1235871920]
Fuel pressure has to drop when you lift off the throttle.....if the injectors stop opening, where do you expect that 1600 psi of fuel to go? It gets purged so you don't blow your lines up. Looks like on that graph the pump can't handle the boost spike. If that could be tuned out you might be ok.
[/quote]
I agree. When you don't lift you can maintain fuel pressure and your pump is crapping out with the boost spike then recovers when boost comes down. I disagree with diablo you are not hitting the boost limiter. Every stock pump is different, some can handle it and other can't
Fuel pressure has to drop when you lift off the throttle.....if the injectors stop opening, where do you expect that 1600 psi of fuel to go? It gets purged so you don't blow your lines up. Looks like on that graph the pump can't handle the boost spike. If that could be tuned out you might be ok.
[/quote]
I agree. When you don't lift you can maintain fuel pressure and your pump is crapping out with the boost spike then recovers when boost comes down. I disagree with diablo you are not hitting the boost limiter. Every stock pump is different, some can handle it and other can't
