85 fuel pressure regulator
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,328
Likes: 14
From: Stafford Connecticut
85 fuel pressure regulator
I read that the 85 vette fuel regulator is 30 lbs at idle and 86 and above are rated at 38 lbs. I was wondering if I could use the 86 to bump my pressure up.
Last edited by steven mack; Feb 26, 2007 at 06:11 PM.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,328
Likes: 14
From: Stafford Connecticut
I have an after market adjustable regulator but haven't used it because I am not sure the factory diaphragm is not leaking .The replacement cost of the diaphragm is as much as the whole new regulator thus the reason for asking about the 86 and later ones.Thanks
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,328
Likes: 14
From: Stafford Connecticut
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,328
Likes: 14
From: Stafford Connecticut
Yes, my motor is not stock, it's built and I want to up the fuel pressure. I had my injectors cleaned and they flowed 27lbs at 43psi. The aftermarket diaphrams like Holley seem to be hit and miss as to whether or not they last. Some people use them and they are fine, others have had to replace them two or three times. Since the factory ones last for 100,000 miles, I would rather use the factory one.
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Team Owner
Joined: May 2002
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
And this is why the 86 uses higher pressure, to get the same flow as the 85.You can also stick a quarter under the fuel pressure regulator cap. Not sure how much this will bump it, but it'll only cost you $0.25 to find out.
