rattlbox

what is the highest horsepower 3rd gen with stock cp3,stock in tank pump and stock fuel lines?

dieselfan

you should have posted this in the high perf. section, it gets more traffic.

TexasCTD

Mine had the filter housing mounted fuel pump that "sucked" the fuel. But I made 466hp with the Smarty on 9 with it. Fuel pressure was zero or close to it though.

After adding the GDP Walbro I made 467 on a different dynojet.

I don't think my stocker FP would have provided any more fuel to make more power though....or certainly not much more. The intank pumps probably provide a little better pressure and supply though.

Sprinter17

Probably more than you could make horsepower for, and if you did make more HP than that , you'd change the fuel system because resources obviously are no object.

03qclb5spd

The numbers in my sig were on a stock system. I have since added a fass system. I will dyno again to see if there is any difference.

dieselfan

were you draining your rail psi? or fuel psi?

03qclb5spd

Problem is I did not have anything to monitor those pressures during my dyno runs. I only recently got the Quadzilla RP/FP gauge, and that was after the fass system so I will never know what they were on the stock system. I know my fuel psi had to be dropping to 0, I just don't see how it wouldn't at my fueling level. As far as draining the rail I still get some cut out with my tst box on, but it's not quite as severe as it was prior. Time for a modded pump....

Luvnacumns

571 and 1021.. ON stock fuel system!!!

dieselfan

you didnt have the glacier fuel pump on there?

whats was you rail and fuel psi like?

Luvnacumns

Nope... Didn't have rail hooked up at the time of the run but before that on wot runs around town it would hit 23-23.5k and fuel pressure was down to 3..