LS1Monte

I Have a 98 LS1 going into a 87 ss monte carlo. Can anyone tell me if new fuel rails on corvettes contain a fuel pressure regulator? I cant seem to find a definate answers. The motor is stock right now until i can get it going with out any ses codes. Then I'll probably modify it later.

Racetronix

iTrader: (2)

Some 98's do and some don't. If there is a regulator you will have a second line being the return coming off of the driver's side of the fuel rail assembly.

felton316

The new vettes do not have the regulator by the fuel rails. 97's and some 98 vettes do. None of the F-bodies have it either.

95LS1TA

iTrader: (1)

97 and 98 if the have 2 lines on it, one is fuel and one is return line. Single does not have a regulater it is in the tank.

y2khawk

iTrader: (5)

rail: 12556705
regulator: 12554677

Both from 97 vette

Bolts right up to the manifold, lines are the standard OEM quick connect style.

1point3liter

I'm considering the vette return style rails on my LS1 RX-7. Anyone have a pic so I can see if it'll work for my application? Where are the inlet, outlet, and crossover?

RICE ETR

iTrader: (3)

Harlan.. is that regulator boost or vacuum regulated... i mean have the ability to be?

Thanks

MIGHTYMOUSE

iTrader: (59)

i believe you have to cut the top of it off like on the lt1's and install a refereced top half to it.. tpis makes one im pretty sure.

y2khawk

iTrader: (5)

it has a vac/boost port and will track 1:1 like it's suppose to. Non adjustable however, standard 4 BAR base pressure.

The TPIS one, I have it, tried it, it sucks

horrible adjustibility, and it doesn't track even close to 1:1 w/ boost.

y2khawk

iTrader: (5)

crossover is in the same location as the single inlet rail. The return line on this rail is basically the same location as the feed on the single line rail. The feed on the returning rail is on the same side, about 3 inches in front of the return.

The regulator is in the same location as the damper on the single rail.

http://harlan-engineering.com/incon/...nal_engine.JPG

you can kind see where the 2 lines are in that pic, where the braided lines make the 90° bends toward the rail.

1point3liter

thanks.

Nasty N8

iTrader: (33)

We also make Billet high flow fuel rails for LS1-6 that can add regulator and lines.

Nate