Fuel pressure?

theDreamer

I would say something is not right, a lot of guys are running 600cc injectors with that power without hitting 100% load.
I would have them tear down the fuel pump assembly and inspect it for problems.

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Neo187H

That is my thought as well, even the GTM stage 2 SC only comes with 650cc injectors and I'm sure GTM has factored in a safety margin for them keeping the DC well below 100%. Though I'm not sure how much of an affect my ARK exhaust and Motordyne ART pipes are having as well, causing raw fuel to be dumped right out the exhaust from the overlap.

Edit: I should say that is my HOPE, I'm hoping it's simple and in the pump rather than requiring replacement of the injectors and removal of the Stillen intake manifold.

phunk

This is mostly correct aside from one consideration.

You must keep in mind that TT cars are able to take the same fuel system noticable further. The supercharger systems use a lot of the HP they generate, so a larger fuel system is required to generate the same power to the wheels.

The GTM SC kit uses a supercharger that is supposed to be much more efficient in its losses, so I would expect that GTM will be able to take the same fuel system configuation slightly further than the Stillen/Vortech.



To the OP: Your WHP doesnt sound too far off from where I would expect those injectors to max out with that type of SC, but that depends greatly on the type of the dyno you are measuring on. If you are on a dynojet, I think you should be able to get a little further if your injectors are actually that size.

I will have to look into what Stillen does to the fuel system for their kit to give you better information.

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