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#21
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Is it normal to run a spacer with a fan clutch?
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Sean 1967 GTO Koerner built 468 with Edelbrock RP’s 315cfm by Butler, Luanti Voodoo HR 20510713, 4l80e, Holley Terminator EFI |
#22
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Not in my experience.
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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 |
#23
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now I'm beginning to wonder if I have the correct fan clutch..... The distance from the fan mounting flange on the pulley side to the fan mount face is only 1 5/8"
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Sean 1967 GTO Koerner built 468 with Edelbrock RP’s 315cfm by Butler, Luanti Voodoo HR 20510713, 4l80e, Holley Terminator EFI |
#24
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I am in for a test cold case vs. champion 66/67 tall .
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#25
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Have you checked with a laser thermometer to make sure your temp gauge is accurate?
When I bought my car, it had a 4 blade fan and no shroud. Ran nice and cool on the highway, would hit (by the gauge) 245 in traffic. I put on dual electric fans, and now it runs cool in town and heats up on the freeway. (As has been mentioned, less airflow through the radiator.) I bought a laser thermometer, and discovered my gauge is accurate from 185-210, then not so much - a gauge reading of 255 is really a temp of 225, which I’ll see on the highway on 90 degree days out here. One of these days, I’m going to add a bigger radiator for more cooling capacity, but I don’t feel any real urgency.
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1965 Pontiac LeMans. M21, 3.73 in a 12 bolt, Kauffman 461. |
#26
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I do have a laser thermometer. I will check gauge accuracy.
So I did some fan clutch research to see why my fan is not inside the shroud. Looks like my clutch is a 2747. This clutch has the fan mount 1.6” away from the water pump. After searching this forum, I found that guys run the longer 2731 clutch which puts the fan 2.25” away from the pump. This will push the fan into the shroud more. I ordered the 2731 from Oreillys last night. Should have some more info on the changes next week.
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Sean 1967 GTO Koerner built 468 with Edelbrock RP’s 315cfm by Butler, Luanti Voodoo HR 20510713, 4l80e, Holley Terminator EFI |
#27
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I see that you said you have an 8" waterpump pulley...I believe they make a 7.25" and also a 6.5" pulley. Both of these would increase flow which should help with cooling.
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#28
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Retract message as my friend had just returned one that the neck blew a mess and made some major damage to hood pad ,engine ,etc.
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#29
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Got any photos?
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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 |
#30
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Quote:
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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 |
#31
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Quote:
For those very unlucky individuals that get a bad one, Cold Case has a non pro-rated lifetime warranty.
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--------------------------- Fool Around, Get Hurt, Don't come Crying to me. |
#32
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Quote:
FWIW, my brother and I are both very pleased with the Cold Case radiators in our GTOs, and wouldn't hesitate to the recommend them to others.
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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 |
#33
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Quote:
I now see that was not your intention but it would have been nice for you to mention that you were successfully running a CC radiator in that same inquiry. Then it would have truly looked like curiosity as apposed to the wagons circling.
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--------------------------- Fool Around, Get Hurt, Don't come Crying to me. |
#34
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Quote:
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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 |
#35
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I have a 67 GTO, 462ci, E-heads, CC305 cam, 3:73 rear, TH400, 3000 stall. stock water pump. solution is this. Car is no slug. runs 10.8
1. $189.00 Universal Aluminum radiator from SummitRacing 2. $80. 1996 Lincoln Mark VIII Electric Fan 3. 2 75Amp Relays in parallel, cost around $40.00 wired them myself. 4. Temp probe thru radiator with rheostat adjusted to come on at around 185 degrees. Car runs between 180-185 no matter what the weather,. I was just in OC and was in traffic for hours , never ever got over 180. ever. On the highway at speed around 185 tops. There is a ton of info on installing that fan in any car.
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"Everyone is entitled to be stupid sometimes, but you're abusing that privilege" www.musclecarsgalore.com www.nikivee.com [www.reverbnation.com/nikivee 1967 Pontiac GTO 1967 Pontiac Grand Prix 1972 Pontiac Lemans Sport Convertible 2015 Dodge Challenger ScatPack 392, 6 speed 2017 Ford Explorer AWD |
#36
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Quote:
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Sean 1967 GTO Koerner built 468 with Edelbrock RP’s 315cfm by Butler, Luanti Voodoo HR 20510713, 4l80e, Holley Terminator EFI |
#37
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Quote:
What alternator are you using? Any other electrical issues with the 1996 Ford fan kit that needed to be dealt with? Next show, if you could swing by the Cold Case booth, I'd love to put a cfm meter on that fan kit. Very curious how much air it pulls. I'll bet it's very good.
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--------------------------- Fool Around, Get Hurt, Don't come Crying to me. |
#38
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Quote:
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"...ridge reamer and ring compressor? Do they have tools like that?" |
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