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View Full Version : No start due to fuel, please look.


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turbotalon1g
08-31-2011, 03:13 PM
^Basically.
I think my cutout was drawing too much power and my power distribution block I think ended up being a huge fail.

bertrenolds5
09-10-2011, 12:51 PM
Can I just ask why your are running a fuel pressure of 43.5 on a 1g? Stock FP is 37 and there really shouldn't be a need to change it, even with E85 I believe. Increasing your fuel pressure past stock won't really do anything, might cool the engine a little bit more but from what I know it should be at 37psi.

And I would bet that the reason your FP wiring failed is because you are running a walbro 255 on stock wiring, and don't try to tell me that it can handle it because it can't obviously.

munchgsx
09-10-2011, 05:07 PM
Can I just ask why your are running a fuel pressure of 43.5 on a 1g? Stock FP is 37 and there really shouldn't be a need to change it, even with E85 I believe. Increasing your fuel pressure past stock won't really do anything, might cool the engine a little bit more but from what I know it should be at 37psi.

And I would bet that the reason your FP wiring failed is because you are running a walbro 255 on stock wiring, and don't try to tell me that it can handle it because it can't obviously.


Most injectors are base flowed at 43.5psi. So for setting up global on link the ideal base pressure is 43.5.

niterydr
09-10-2011, 05:47 PM
Can I just ask why your are running a fuel pressure of 43.5 on a 1g? Stock FP is 37 and there really shouldn't be a need to change it, even with E85 I believe. Increasing your fuel pressure past stock won't really do anything, might cool the engine a little bit more but from what I know it should be at 37psi.

And I would bet that the reason your FP wiring failed is because you are running a walbro 255 on stock wiring, and don't try to tell me that it can handle it because it can't obviously.

As pointed out, setting the fuel pressure at 43.5psi is what the injectors are rated at. When you run them at the stock 1g 36-37 psi base fuel pressure, you are effectively making the fuel injectors smaller.

kthxbai.

turbotalon1g
09-10-2011, 08:28 PM
Stock FP on an auto is 43.5.

Bert, hundreds of people have run 255 on stock wiring, hell some people have run 2 255 pumps on stock wiring for at least a year with no issues.

Please don't try to tell me about tuning and fuel pressure when you obviously have no clue, I'd love to see increased fuel pressure used for cooling.