91 TPI fuel pressure
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Joined: May 2015
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91 TPI fuel pressure
Ok I know its been discussed in many posts but what is the fuel pressure really supposed to be? A lot of people say its 47lb but 3 bar is 43ish psi. I am getting 42ish psi not running and 39lb running.
Edit from doing a few searches people say from all they down to 37psi is normal to 50psi is normal and I know that cant be true.
Edit from doing a few searches people say from all they down to 37psi is normal to 50psi is normal and I know that cant be true.
Joined: Nov 2008
Posts: 2,097
Likes: 177
From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: 91 TPI fuel pressure
With the vacuum line disconnected or engine not running it should be 43.5. That is the factory setting.
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