Quick fuel pressure question...
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Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Quick fuel pressure question...
Stock I had:
36 (Vacuum line connected)
45 (Vacuum line disconnected)
I installed an Holley adjustable fuel pressure regulator and started it with the vacuum line disconnected. Set the fuel pressure with the vacuum line off at 48. But now with the vacuum line connected, it is at 40 and not 36.
Is that ok?
Thanks guys
36 (Vacuum line connected)
45 (Vacuum line disconnected)
I installed an Holley adjustable fuel pressure regulator and started it with the vacuum line disconnected. Set the fuel pressure with the vacuum line off at 48. But now with the vacuum line connected, it is at 40 and not 36.
Is that ok?
Thanks guys
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Joined: May 2005
Posts: 1,942
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
did you plug the vaccum line when you adjusted the preassure.
you are suposed to drop about 10 psi when the vac line is reconnected
you are suposed to drop about 10 psi when the vac line is reconnected
Thread Starter
Moderator
Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Yes, it went from 48 to 40 with the vac line in. But it was 36 before with the vac line in.
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