F1 Injector Answers
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From: Auburn Ohio
So with my p-puck and beta 4.2 I'll be able to run much better pressure to the rail via ecm than just timing/duration. I do know that don's injectors love added pressure.No matter what i'm going with 100ish hp sitx with a stock cp3,then dyno,then i'm going to switch the cp3 for a for another run. The dyno I use is very constant mustang that I think I can trust. Then we can find out the actual difference between added pressure and no pressure,stock pump and modified. and then I think i'll no for my self.
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From: Florida
Let me use my truck as an example and maybe that will make my point a little more clear.
When I am running the mp8, I can adjust it so that my rail pressure is at 23k, 25k, or wherever I want it. If I turn the mp8 off with my other mods, I cannot keep that kind of rail pressure. The timing and duration of the Juice along with the larger injectors use up all the fuel in the rail and the pressure drops. By using electronics to call for extra fuel to be sent to the rail it is able to maintain a higher rail pressure.
So....
On your Smarty, by it calling for a certain rail pressure, it is actually calling for additional fuel above what would normally be supplied so that there is enough to keep the rail pressure up. It never allows the rail pressure to exceed factory specs, but it call for enough extra fuel to attempt to maintain good pressure. So you have to look at it as though the Smarty is calling for fuel ( to specifically increase rail pressure ) rather than pressure.
I'm not sure if that made any more sense or not, but I can tell you that even with my stage 1 cp3, without added pressure from the mp8 it the rail pressure will be low.
When I am running the mp8, I can adjust it so that my rail pressure is at 23k, 25k, or wherever I want it. If I turn the mp8 off with my other mods, I cannot keep that kind of rail pressure. The timing and duration of the Juice along with the larger injectors use up all the fuel in the rail and the pressure drops. By using electronics to call for extra fuel to be sent to the rail it is able to maintain a higher rail pressure.
So....
On your Smarty, by it calling for a certain rail pressure, it is actually calling for additional fuel above what would normally be supplied so that there is enough to keep the rail pressure up. It never allows the rail pressure to exceed factory specs, but it call for enough extra fuel to attempt to maintain good pressure. So you have to look at it as though the Smarty is calling for fuel ( to specifically increase rail pressure ) rather than pressure.
I'm not sure if that made any more sense or not, but I can tell you that even with my stage 1 cp3, without added pressure from the mp8 it the rail pressure will be low.
I think this shows that my stock CP3 can keep up with the Flux 2's without any added pressure.
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From: swinging wrenches in MD
thats correct, it will not raise it, but can it pull duration out so that your pump will maintain pressure? Take the Smarty off and run just a TST and I bet you will find it to be quite different.
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From: Florida
That's all I run!
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From: Nebraska
The 2s will get you over 600. I have 1.8s and will be dynoing tomorrow at John's. I'll post results tomorrow night or Monday by the latest. The only thing that might hold me back is my turbo is pretty small, I we still think it will be over 600hp. I also only have John's stage 1 pump. The 1.8s have shown as much as 120hp on the dyno.
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