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#1
10-30-2017, 01:03 AM
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Mechanical Fuel Pump Brands
Is any particular aftermarket OEM style mechanical fuel pump better than the others? I already ordered an AirTex ... heard they might be made in America, or something
 For the price I'd certainly swap it for something else if it's garbage. Just a stock engine, q-jet carb. 68 GTO if it makes a difference. |
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#2
10-30-2017, 01:27 AM
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Airtex has always worked good for us, but we did find that they didn't check their pump springs a few years back. The 10 PSI didn't work very well with the Tri-Power on the '66. We kept the pump but also had to hide a regulator just after the pump on the way to the carbs.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
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#3
10-30-2017, 08:13 AM
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aIRTEX MAKES A GOOD PUMP, HAVE HAD GOOD LUCK WITH THEM, YOU MAY CONSIDER A LATER YEAR PUMP WITH A "VAPOR RETURN LINE" , TO ELIMINATE VAPOR LOCK, USED ON MOST a/c EQUIPPED CARS. yOU'LL HAVE TO ADD A SMALL DIAMETER RETURN LINE.
hth 
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#4
10-30-2017, 08:14 AM
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RobbMc--- Also makes a very good fuel pump and the fuel pump he makes one for 550 HP and 1100 HP the 550 hp don;t need a fuel reg. and can also be changed over to handle 1100 hp----BOB
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#5
10-30-2017, 08:14 AM
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I had good luck with the Edelbrock one I used.
__________________
468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#6
10-30-2017, 09:08 AM
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Carter.
http://www.hotrod.com/articles/hppp-...ac-fuel-pumps/ Here's one of the big can models. https://www.amazon.com/Carter-M6122-.../dp/B000BZZ71G The Airtex is cheaper. https://www.amazon.com/Airtex-41382-.../dp/B000C1I15I Don't know which is better, or if there is any quality difference, at all. Had a RobbMc 1100hp on my last bracket car, but never got to race it. They're a bit pricey. Back in the old days, I always ran a stock mechanical, plus a Carter elec, back at the tank. Switched the elec on, just for the pass. Some recommend an elec only, to keep the gas cooler. But some don't trust an elec, unless it's inside the tank. Therefore, some run an in-tank fuel injection pump, plus a regulator. "...Just a stock engine, q-jet carb. 68 GTO..." One of the cheap mechanical pumps should be sufficient. The factory mechanical on my '69 RA3 GTO worked just fine, for street use. Last edited by ponyakr; 10-30-2017 at 09:38 AM. |
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#7
10-30-2017, 09:42 AM
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Not much choice out there anymore for stock mechanical fuel pumps. Carter and Airtex are just about it. ACdelco has pretty much went non existent. Might come in an AC box but they no longer have an AC cast logo on the body so you can't distinguish it from an Airtex or Carter or.....
Sometimes I have excellent results from them, sometimes not so much. |
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#8
10-30-2017, 10:34 AM
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Quote:
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1968 Firebird 400 RAII M21, 3.31 12 bolt, Mayfair Maize. 1977 Trans Am W72 400, TH350, 3.23 T Top Everyone you will ever meet knows something you don't. Bill Nye. Last edited by TedRamAirII; 10-30-2017 at 10:48 AM. |
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#9
10-30-2017, 10:40 AM
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Quote:
I've been running an AC pump on my Formula for about 20 years now. So far it's been great at supplying fuel and getting the car close to the 12's. Knock on wood the ethanol in the gas hasn't affected it. I bought another pump (Airtech I think) to replace it simply because of age, but it's running so good I had to change it and run into potential Airtech fuel pump issues, lol. So I'm holding out as long as I can. |
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#10
10-30-2017, 10:50 AM
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I've been running an Airtex on my '72 350 for around 60,000 miles. Aint broke yet!
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Karl 
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#11
10-30-2017, 10:52 AM
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Butler sells the Holley pump.
https://butlerperformance.com/i-2604...tegory:1234821 There are also Spectra brand pumps. Saw some at Summit & Ebay. Don't know anything about 'em. Last edited by ponyakr; 10-30-2017 at 11:00 AM. |
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#12
10-30-2017, 12:22 PM
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Or how 'bout a Delphi ?
http://www.autozone.com/external-eng...171030162134:s https://www.summitracing.com/parts/d...8aAnDJEALw_wcB https://www.amazon.com/Delphi-MF0100.../dp/B00MK8X5DY There are probably Chinese pumps sold under several brand names. https://www.ebay.com/itm/Chrome-Pont...4383.l4275.c10 https://www.ebay.com/itm/Chrome-Mech...38.m2548.l4275 http://www.jegs.com/i/RPC/707/R2309/...UaAmj6EALw_wcB Last edited by ponyakr; 10-30-2017 at 12:50 PM. |
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#13
10-30-2017, 01:22 PM
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The Airtex I bought for my Ford looks exactly like the original pump.....except shiny new, no problem keeping dual quads fed.
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#14
10-30-2017, 03:50 PM
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My 68 GTO has AC ... has/had a return line ... not sure if it's a "vapor" return line.
Were the original pumps the large can type? Just searched through my photos, found one of a new 68 GTO in a frame shop with the front end off, looks like it has the short can. It's a non-AC car though. |
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#15
10-30-2017, 04:45 PM
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I have been running the Carter street pumps for almost 20 years.FWIW,Tom
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#16
10-30-2017, 08:04 PM
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The nice thing about the RobbMc pump(s) - 550 or 1100 - is you can rotate the inlets...
I have one on the GTO now.
__________________
-- James Work '67 GTO Convertible "Koerner Built 413 500 hp with a Victor!.. I'll run a stock intake." '75 Formula 400 - Daily Driver - Running with my Home Built 455 and TH400 Details here: http://forums.maxperformanceinc.com/...d.php?t=588372 |
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#17
10-30-2017, 08:06 PM
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Is there an advantage to using a large canister pump instead of a small canister when either one will fit?
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Steve F. |
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#18
10-30-2017, 08:19 PM
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We have to figure that Pontiac thought there was good reason to swap to a large canister. I can think of two possible reasons the taller canister is beneficial. First, it has a larger storage capacity and if there were minor disruptions in fuel delivery such as momentary flashes to vapor in the fuel line, the extra storage might keep you going. The other is the extra inch of gas allows more time for the vapor bubbles to purge from the fuel before going into the bottom feed line to the carb.
__________________
Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon. |
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#19
10-30-2017, 08:34 PM
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10psi is the reason my airtex is still on the shelf (I was afraid to run it), not many carbs would like that kind of preasure.
__________________
1979 Firebird Trans Am 301/4spd (Now 428) 1977 Firebird Formula 400/Auto 2007 Grand Prix GXP 5.3L |
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#20
10-30-2017, 09:12 PM
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Quote:
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Steve F. |
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