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#1
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Flow-Kooler, Edelbrock or Miloden?
Done with GMB water pumps, just wanting to hear some thoughts on which of these pumps is the best investment. I'm inclined to go with the Flow-Kooler but wanted to ask here first.
Thanks, Rick
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#2
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Flowkooler, what happened to the GMB ?
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#3
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Aren't all of those just GMB pumps, but with different impellors?
Picture is of a recent FlowKooler I had in hand. GMB housing, with a really pretty anodized aluminum impellor.
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust |
The Following User Says Thank You to Lee For This Useful Post: | ||
#4
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I have the Edelbrock water pump on my car and like it. No complaints. I still had to clearance the divider plate like all the other pumps out there, but that is no big deal.
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1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
The Following User Says Thank You to ZeGermanHam For This Useful Post: | ||
#5
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GMB started leaking through the weep hole with less than 1K miles. Full disclosure, I only drive a couple hundred miles a year.
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#6
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I currently use the one Lee has pictured. Used the old design Flowcooler before that, and it was still good when I changed to the newer design after ~15 years. I've had good luck (knocks on wood) with them.
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'65 Tempest 467 3650# 11.30@120.31 |
#7
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I had been thinking the plate being sold with the Edelbrock would be an advantage. Apparently not so as you had to adjust it like any other water pump. Good to know.
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#8
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I will add the prw aluminum body water pump to your list for consideration only because I've had one in use for about 10 years with no issues. Mine came with a cast impeller and is much lighter than an iron pump fwiw...
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The Following User Says Thank You to firechicken For This Useful Post: | ||
#9
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I've been running the Edelbrock since 2009 with no problems.
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The Following User Says Thank You to 76TA462 For This Useful Post: | ||
#10
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Quote:
Before: After:
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1966 Pontiac GTO (restoration thread) 1998 BMW 328is (track rat) 2023 Subaru Crosstrek Limited (daily) View my photos: Caught in the Wild |
The Following User Says Thank You to ZeGermanHam For This Useful Post: | ||
#11
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Rather than beat heck out of the devider plate opening to reduce the clearance, why not press the impeller off the shaft a few thou. It would solve 2 problems. First maybe you can beat on a tin devider to take up the clearance but it's very difficult to peen away at a stainless devider and take up the clearance. Also if your only peening the metal at the divider plate opening . there still is a lot of clearance along the face of the impeller and the devider plate. I don't know. Seems like a lot of impresice beating of a devider
Plate when just pressing the impeller off the shaft a few thousadths would work for tin and stainless. Puts the impeller right where you want it. I dunno. |
#12
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I tried one 8 bolt flocooler over a factory,absolutely no diff.I continue to use factory cast impellers with no issues.One car had a 4 bolts system,changed to 8 bolt with no improvement and tried the FC on it with again no improvement.FWIW,I had no over heating problems with the 4 bolt.421 HO in a 62 GP with factory radiator and factory shroud.The 421 SD engine in the 63 Lemans still has a 4 bolt on it for like 20 years now.The 428 RA V engine has a factory 11 bolt with a factory shroud and a factory 350 auto radiator and has never had a over heating issue with at least 4 diff engines in it.FWIW,Tom
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#13
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So I've decided to go with the Flowkooler, price being a factor. Started disassembly while waiting for parts. Thought the pictures below might be interesting, water pump last changed 5-6 years ago along with timing cover.
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#14
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I've been happy with my Flowkooler for years then went to the electric HD (42gpm) Meziere. Never had a problem with it.
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1969 Pontiac Firebird |
The Following User Says Thank You to 92GTA For This Useful Post: | ||
#15
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I forgot to mention, for those who may find this thread and want to consider electric in the future, the Meziere does not need any plate indexing. It has a billet aluminum plate built into the pump that's perfect fit to the impeller and is all 1 unit. That may be why I'm so happy with the cooling now after switching from the Flowkooler even thought I indexed my old plate as well as I could.
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1969 Pontiac Firebird |
The Following User Says Thank You to 92GTA For This Useful Post: | ||
#16
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Do electric water pumps operate at high speed all the time? - to help those of us with temp creep in stop and go traffic?
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1965 Pontiac LeMans. M21, 3.73 in a 12 bolt, Kauffman 461. |
#17
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Yes, or they can be PWM with a controller. I bought mine to keep cool in city driving and to run after engine shutdown a bit.
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1969 Pontiac Firebird |
#18
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I had to Google PWM, haha. That 42 gpm pump sounds like what I need - it’s warming up here in California. Today, I drove up a fairly steep toll road - about 4 miles, 800 feet of elevation gain at 75 mph. She didn’t heat up nearly as much as sitting at a stoplight earlier - go figure.
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1965 Pontiac LeMans. M21, 3.73 in a 12 bolt, Kauffman 461. Last edited by Chris65LeMans; 05-17-2020 at 12:31 AM. |
#19
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Quote:
I've used several DC Controls PWM controllers now. I've got one that has worked great for over 10 years now, and have not heard of any that I've installed that have had a problem. I used one that controlled my fan AND water pump. VERY consistent running temps for the engine. Plus I had a switch wired-in to manually turn them both on, which was great for cooling the engine between runs. http://www.dccontrol.com/constant_te...ontrollers.htm
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust |
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