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

AFPR Recommendations

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Old Dec 8, 2007 | 01:38 PM
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Default AFPR Recommendations

I'm officially done with my Holley AFPR today. Blew my second diaphgragm in a month today. Anyone have any recommendations on an AFPR for an 85? Preferably one that isn't as high maintenance as this one has been.

Sorry, little pissed today if you couldn't tell.
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Old Dec 8, 2007 | 01:48 PM
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Try www.summitracing.com they carry Crane
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Old Dec 8, 2007 | 06:17 PM
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I had the Aeromotive and had no problems just dont know if they make it for the TPI cars. Personaly I removed it and just retuned the car with the stock regulator. In all reality I see no need for this product other then a bandaid for a good tune
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Old Dec 8, 2007 | 06:25 PM
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I tried one from mid-America. The vacuum port fitting on it was very delicate and broke right away. That was a few years ago, not sure if they have improved the design or not.
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Old Dec 8, 2007 | 07:22 PM
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I had one of the originals from TPIS, years ago, never had any problems. It came with a new diaphragm. I heard others just reuse the stocker.

Here it is at Jeg's.

Last edited by lite blue; Dec 8, 2007 at 07:24 PM.
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Old Dec 8, 2007 | 09:01 PM
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The Holley was suggested when I was shopping around for one. It's been on for over a year now since I installed and without problems. From what I have read on this forum, most members have had trouble with other aftermarket AFPR's and the Holley was probably the best hands down.
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Old Dec 8, 2007 | 09:38 PM
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Aeromotive here on my LT1 - it looks

I'm pretty sure they have one for TPI as well.

It does immediately bleed off fuel pressure after shutting car off - but I talked to Aeromotive about it and they said it was normal. Only downside to it is a very, very slight delay sometimes when cranking til' the fuel gets there.

For the most part they have no real advatage, I mostly did the Aeromotive because it looks so
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Old Dec 8, 2007 | 09:50 PM
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Originally Posted by evmlarry
I'm officially done with my Holley AFPR today. Blew my second diaphgragm in a month today. Anyone have any recommendations on an AFPR for an 85? Preferably one that isn't as high maintenance as this one has been.

Sorry, little pissed today if you couldn't tell.
I have a Holley on mine and it has worked well for years. When I got it I inspected the part as I always do since it's so common for a part to need finishing work.

And it did, there was a ridge of metal in the bore of the regulator. Maybe that is your only problem. Look the unit over and clean it up. I removed the vacuum fitting and cleaned that up to, plus resealed it better.
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Old Dec 8, 2007 | 10:45 PM
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Holley here for 2 years, no problems at all.
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Old Dec 9, 2007 | 01:38 AM
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I have a TPIS one I will sell you. PM me if you're interested.
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Old Dec 9, 2007 | 01:50 AM
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I use the Aeromotive on my modified LT1 and it has been trouble free to this point. They make them for TPIs too, I'm sure.
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Old Dec 9, 2007 | 04:40 AM
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Thanks guys, I have a new one on the way. Appreciate your input. I posted out of frustration. Sucks when you're about to take your car in, JUST fresh off a brand new rebuild, to get the emissions sticker only to have the low idle so bad that it feels like it's going to die. Sucks when I pulled the vacuum line off the AFPR to see fuel pouring out. Just really frustrating to have it parked again.

Anyways, you guys pull through like always and I appreciate it.
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