Guys with aftermarket fuel pressure regulators

[firebirdvert305]

Just out of curiosity, if your running an aftermarket fuel pressure regulator, what size vac hose are you using for your boost reference port? I think I might have too small of a line (3/16 vac line) causing fuel delivery issues over 25psi. Let me know if you guys are using 1/4 or bigger, thanks.

 

[SlowSpyder]

What's your fuel pressure under boost? Does your fuel pressure drop when you get over 25psi??
I don't think a single Bosch 044 And 1450s with enough especially with e85.

 

[99gst_racer]

I ran a tiny -3AN line to mine and had no issues. The I.D. is .14", which is smaller yet than your 3/16" hose.

 

[goodhart]

What's your fuel pressure under boost? Does your fuel pressure drop when you get over 25psi??
I don't think a single Bosch 044 And 1450s with enough especially with e85.

How do you know that isn't enough fuel, he didn't even say what his setup is. He could be on a 16g for all we know.

 

[LandSpeed-DSM]

I have -4 from a vacuum manifold run to my regulator.

 

[firebirdvert305]

My fuel system is
Twin intank walbros 255s
Kenne bell boost a pump running at 18v
Fic2150s
-8 feed/stock return
Russell fuel filter
Oem rail with -8 adapters
Weldon fpr

Car runs e85 only boost is 40psi...base fuel pressure is 43.

I ran a tiny -3AN line to mine and had no issues. The I.D. is .14", which is smaller yet than your 3/16" hose.

My pressure starts to drop off erraticly around 25psi. Im wondering if the 3/16 hose is holding me back.

 

[SlowSpyder]

How do you know that isn't enough fuel, he didn't even say what his setup is. He could be on a 16g for all we know.

Read his profile, definitely not updated.

 

[Bud92gsx]

It was all bolt on once i got the fitting for the fuel rail.With a -6an fuel line.Stock vaccume line.
I hope that helps.

 

[99gst_racer]

My pressure starts to drop off erraticly around 25psi. Im wondering if the 3/16 hose is holding me back.

Which regulator are you running?

 

[firebirdvert305]

Weldon -10