Mattsv8

iTrader: (7)

I was told that with a smaller turbo like a 70 mm and a 500 max whp goal the turbo setups could be ran without a boost ref reg and do the fuel enrichment off the map. So just a bigger pump and larger injectors. If so this would be awsome for lower boost power levels.

kbracing96

iTrader: (25)

I always run boost ref when I can. It's not adding fuel to support the boost, it more keeping the injectors squirting with the same pressure differential in both manifold vac and boost, so you can run a flat value in the flow rate table in the tune and get the most out of the injectors. IMHO, it the correct way to fuel a turbo motor.

Sarg

iTrader: (6)

You can do it either way, and we have, but to be honest using a boost reference is the better way of doing it. The downfall is that the higher the fuel pressure the less your fuel pump will flow. Just make sure you have an appropriately sized pump.

Mattsv8

iTrader: (7)

Could a 255lph high pressure and 80lb injectors feed a 550whp stock bottom end without a bref reg and b safe enuf for driving

Mattsv8

iTrader: (7)

My 8 sec s10 is boost ref and 2 a1000s but I couldent believe. That u could add fuel with just the map. Its cool if u can up to evan 500 whp

Fbodyjunkie06

iTrader: (10)

Couldn't of said it better.

It really does help the injectors and pumps out a lot.

Sarg

iTrader: (6)

With 80 lb injectors you will probably be fine. The 255 is getting close though. We generally try not to run those much past 550 on gasoline, although some will say they are good for more. I always like to have extra injector and fuel pump and not run things to the ragged edge. An A1000 would give you room to grow or a second 255 (they are cheap!).

evo462

iTrader: (27)

Can anyone recommend an affordable boost referenced FPR? Going on stock fuel lines and rails.

skinnies

iTrader: (33)

mallory 4305m

JAX04

iTrader: (17)

Im curious how you plan to do this??

And FWIW, i use the Aero A1000 Reg.

evo462

iTrader: (27)

hell I dunno, I haven't gotten that far yet

JAX04

iTrader: (17)

Its going to take modifying the rails, for a flow through design to do that. It would probably end up being less expensive or or about the same cost, for a larger set of freer flowing aftermarket rails.

FYI, the ls1 kit that summit sells, it amazing quality and not that salty.

MUSTANGBRKR02

iTrader: (91)

Kirban performance. They are used alot in G-body turbo apps. IE Grand Nationals, T-type's etc.

evo462

iTrader: (27)

Yeah, but then I'd need to do something about the stock fuel lines too.

Larry @ AMS

iTrader: (1)

I do agree that a return system with regulator is the best route for a FI setup. The single 255 with a BAP will be fine at 550 rwhp on gas.

The cheap route to do a return setup with stock rails is to use the stock feed and return it via the shrader ( valve removed ) while using the EVAP line as your return line.