Questions on fuel system

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Mar 4, 2008 | 06:25 PM

Grewe02

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Questions on fuel system

Hey guys, I'm stumped on the fuel pressure regulator. From reading search threads, the stock one in most F-body vehicles is in the tank. I was pretty sure it was on the fuel rail? If not, WTF is on the fuel rail?

My motor is a 98 out of a Trans Am if that helps... Just trying to figure out what all I need to make my motor run once it's installed.

Thanks,

Mar 4, 2008 | 06:32 PM

cherryelky305

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i believe thats just a small regulator to regulate between the 2 fuel rails. nothing more, just makes sure that each bank has even pressure.

Mar 4, 2008 | 07:25 PM

67rsss

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I believe it is called a pulse regulator or damper, it helps to even out the pressure at the rail since it is dead-head.

Mar 4, 2008 | 08:20 PM

oange ss

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pulse dampner, dampens fuel pressure fluctuations caused by the pressure regulator being so far from the fuel rail

Mar 4, 2008 | 09:48 PM

Grewe02

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Good deal. So would a stock one be sufficient? At the moment my motor is making ~500 HP.

Mar 4, 2008 | 10:15 PM

ls1nova71

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Most people just use a 99-02, I believe, Corvette filter that has the regulator built in. I would thnk that would be suffecient for your application.

Mar 4, 2008 | 10:43 PM

m8w6r77

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the fuel filter from 01 corvette has the regulator in it. just like ls1nova71 was saying

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Mar 5, 2008 | 07:59 AM

SheldonZ28

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It mounts outside of the fuel rail, normally under the car.

In my thirdgen swap, ill be mounting mine just underneath the rear seats, then running a single fuel line to the front of the car.

Mar 5, 2008 | 08:17 AM

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Stu Cool

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It's easiest to mount the filter regulator as close to the pump and tank as possible. That way you can run a single line forward. What type of pump are you using? External or in tank?

Pat

Mar 5, 2008 | 09:26 AM

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ls1nova71

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Check this out, it might help. https://ls1tech.com/forums/showthread.php?t=246157out.

Mar 5, 2008 | 09:51 AM

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Grewe02

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Quote:

Originally Posted by Stu Cool

It's easiest to mount the filter regulator as close to the pump and tank as possible. That way you can run a single line forward. What type of pump are you using? External or in tank?

Pat

I'm using my stock intank pump complimented by an inline Walbro 255.

Quote:

Originally Posted by SheldonZ28

It mounts outside of the fuel rail, normally under the car.

In my thirdgen swap, ill be mounting mine just underneath the rear seats, then running a single fuel line to the front of the car.

So this is the one and only fuel like that goes to / from the motor? No return from the fuel rail, correct??

Quote:

Originally Posted by ls1nova71

Check this out, it might help. https://ls1tech.com/forums/showthread.php?t=246157out.

Very awesome, thanks.