adjustable fuel pressure regulator setup

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
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4ndee
Posts: 2293
Joined: Tue Aug 24, 2010 7:06 pm
Location: cornwall

adjustable fuel pressure regulator setup

Post by 4ndee »

My fpr gauge is leaking when warm (its liquid filled). So i want to set it and put the bung back in. Just want to confirm the pressure.

With the vac hose disconnected its 36psi
jimGTS
Posts: 14024
Joined: Tue Dec 14, 2004 1:40 pm
Location: North Kent

Re: adjustable fuel pressure regulator setup

Post by jimGTS »

The gauge will have a bleeder/cap. Pierce it so it's open to atmosphere.

A liquid gauge when warm will give the wrong reading if it's sealed! The pressure in the gauge will effect the reading as the liquid warms.

I've pierced mine, I get the same readings hot/cold.

Vac hose disconnected I would run between 36-40psi. I'm still testing things out (but 36psi is fine, just be sure you can check your AFRs!).
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