C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Regulators Mount Up !!!!!!!

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Old Feb 13, 2006 | 11:15 PM
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Default Regulators Mount Up !!!!!!!

What is the best adjustable FPR to buy for a 1991 L-98. The car had one when I bought it and the vacuum fitting just broke off the hat. I feel retarded for asking this but what is the vacuum actually referenced to or simply put why is it needed. The car was set at 45 psi and I recently put in LS6 injectors so I wanted to tone down the pressure until I get some mods done where I actually need the 28 lb injectors. All input greatly appreciated.
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Old Feb 13, 2006 | 11:19 PM
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My vote is for the holley reg. Solid, great looking and comes with a new diaphram. Listed as a camaro tpi reg.
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Old Feb 13, 2006 | 11:35 PM
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Hly-512-501
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Old Feb 13, 2006 | 11:39 PM
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Originally Posted by AGENT 86
My vote is for the holley reg. Solid, great looking and comes with a new diaphram. Listed as a camaro tpi reg.


I have the AFPR from Mid-America, it's ok, but I'll probably replace it with the Holley unit this summer.

Ben
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Old Feb 13, 2006 | 11:40 PM
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Agent86 is right.

I have one, and love it. Its a nice unit. Built like a tank. With that huge solid dial, its alot easier to make an adjustment than the stock-like units.

Visit www.summitracing.com and type in part number HLY-512-501. This will apply to 85-91 TPI corvette (although not listed as such at the site). This is the one you want. $82.88 each.

Here's the image:
http://store.summitracing.com/largei...rt=HLY-512-501

Last edited by Red Tornado; Feb 13, 2006 at 11:43 PM.
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Old Feb 13, 2006 | 11:40 PM
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Originally Posted by AGENT 86
My vote is for the holley reg. Solid, great looking and comes with a new diaphram. Listed as a camaro tpi reg.
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Old Feb 13, 2006 | 11:44 PM
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Thanks for the replies and part number guys just ordered one!
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Old Feb 14, 2006 | 12:07 AM
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Its a nice piece!


P.S. Are you quoting Warren G?
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Old Feb 14, 2006 | 12:09 AM
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You bet, legends never die!
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