Project XXX AWD WHP Or Bust!

[Alpha D]

Originally Posted by goodhart

1g pistons = 7.8:1
2g pistons = 8.5:1

Thank you goodhart ha i was almost close!

Now talking about the stock FPR im not sure if i excactly understand or if i have the right concept in mind. The purpose of the fpr is to keep a constant pressure of fuel. . . the less fuel you move through a specific diameter of pipe in our case fuel lines the less pressure. . .the more fuel (dual 255) the more pressure. In the case of a dual 255 set up to much fuel for the stock fpr to handle? Now where does the problem come in the excess fuel not being bled back in to the tank. . .How excactly does this result in overfueling?

I thought the injectors are only open for a certain amount of time or duration, now is the over fueling caused by the high amount of pressure squeezing more then the normal amount of fuel into the cylinders each time the inectors fire. . .or do they leak how excactly does this work? Im just curious. . .seems to be a simple concept yet i overlooked it and could, more like did contribute to the problem for all i know.

Moving on to the compression ratio @ shane the timing info would that only apply when putting the engine underload/boost not during idle? & Could one so to say pull on boost given the psi stated cause engine failure? Because if yes then perhaps that could of been the reason as well. What i would like to know is whether this dilema was caused due to a mechanical failure (loose bolt, interference ect) which im really leaning towards or Electronically (timing, fuel pump, the other not so obvious possibilitys)

[blackawdtsi]

Originally Posted by Alpha D

I thought the injectors are only open for a certain amount of time or duration, now is the over fueling caused by the high amount of pressure squeezing more then the normal amount of fuel into the cylinders each time the inectors fire. . .

This. There's a possibility that if there was enough fuel, it would get past the rings and get into your oil. However you would've heard spinning bearings followed by a loud deep knocking.

[bertrenolds5]

Originally Posted by blackawdtsi

This. There's a possibility that if there was enough fuel, it would get past the rings and get into your oil. However you would've heard spinning bearings followed by a loud deep knocking.

He probably heard something like that as the engine block exploded. I have to say, holy crap you were running dual pumps on 560cc injectors on E85? I thought you werent supposed to go below 720's and even thats pushing it, and no fpr? You need the AFPR because your telling dsmlink that you have a base fuel pressure of 37psi so if it's not 37 then your going to have problems. Once again, holy shit you were running a stock fuel pressure regulator.