Do i need anything special to get them to fit or hookup?? with me fuel rail and haltech that is? i heard i could cut them to fit in the stock s4 fuel rail? true or not? and what about my haltech?

Yes, you can cut the plastic to make them fit like a stock injector. You'll need to use stock style o-rings if you do that. They'll plug into the Haltech's injector plugs.

Don't forget a fuel pump and a better FPR. They flow ALOT of fuel

o yeah i know! https://www.nopistons.com/forums/pub...IR#>/smile.png as long as u mentioned that, which FPR regulator should i get? i was looking at the XS one, but i dunno. Suppose im going to have to tap my fuel rail then.

you need the pump more than you need the regulator. you can hook the stock one up so it sees boost and it will work like those fancy ones, and you already have it



mike

Yeah, I was using a stock regulator with my T-78 and 4 1600's. I had no problem getting enough fuel.

Yeah, I was using a stock regulator with my T-78 and 4 1600's. I had no problem getting enough fuel.[/quote]

the problem with the stock reg is not getting enough fuel, it's having too much. with a big pump, the volume goes up, and the reg can not flow it back to the tank, so the pressure raises at the rails from what it should be, causing it to run richer. that is the reason adding a walbro etc will richen the car up, with a good REG, it would not get any richer.

Yeah, I was using a stock regulator with my T-78 and 4 1600's. I had no problem getting enough fuel.[/quote]

the problem with the stock reg is not getting enough fuel, it's having too much. with a big pump, the volume goes up, and the reg can not flow it back to the tank, so the pressure raises at the rails from what it should be, causing it to run richer. that is the reason adding a walbro etc will richen the car up, with a good REG, it would not get any richer.[/quote]

Alot of that can be compensated for with tuning.

Yeah, I was using a stock regulator with my T-78 and 4 1600's. I had no problem getting enough fuel.[/quote]

the problem with the stock reg is not getting enough fuel, it's having too much. with a big pump, the volume goes up, and the reg can not flow it back to the tank, so the pressure raises at the rails from what it should be, causing it to run richer. that is the reason adding a walbro etc will richen the car up, with a good REG, it would not get any richer.[/quote]

Alot of that can be compensated for with tuning.[/quote]

yah, and if you have a stock ecu and a lot of mods its good thing too =)



mike

Yeah, I was using a stock regulator with my T-78 and 4 1600's. I had no problem getting enough fuel.[/quote]

the problem with the stock reg is not getting enough fuel, it's having too much. with a big pump, the volume goes up, and the reg can not flow it back to the tank, so the pressure raises at the rails from what it should be, causing it to run richer. that is the reason adding a walbro etc will richen the car up, with a good REG, it would not get any richer.[/quote]

Alot of that can be compensated for with tuning.[/quote]

yah, and if you have a stock ecu and a lot of mods its good thing too =)



mike[/quote]

that's is def a good thing https://www.nopistons.com/forums/pub...#>/biggrin.png