Author Topic: 440+ 6 Temperature spike when stopped...even for a short time.  (Read 2486 times)

Offline Travis Blake

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #75 on: July 06, 2017 - 09:08:34 am »
Glad you found it  :2thumbs:

Thanks man. ME TOO! HAHA.

As an aside. does anyone run a deeper finned, aluminum trans pan like this? Any big cons? Is ground clearance an issue for anyone?

https://www.summitracing.com/parts/ati-723500?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-ati-performance-products&gclid=EAIaIQobChMIhtuqxdz01AIVRRuBCh0RHwQDEAQYAiABEgIwb_D_BwE
1974 Dodge Challenger  - 440 Six Pack
2015 Jeep Wrangler Unlimited - Willy's Edition




Offline cudabob496

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #76 on: July 06, 2017 - 12:44:00 pm »
Thanks man. ME TOO! HAHA.

As an aside. does anyone run a deeper finned, aluminum trans pan like this? Any big cons? Is ground clearance an issue for anyone?

https://www.summitracing.com/parts/ati-723500?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-ati-performance-products&gclid=EAIaIQobChMIhtuqxdz01AIVRRuBCh0RHwQDEAQYAiABEgIwb_D_BwE

yes, got one, works great
72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

Offline Travis Blake

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #77 on: July 06, 2017 - 01:51:55 pm »
yes, got one, works great

Awesome. Might try to do one of these to help mitigate the heat. How much fluid does yours take?
1974 Dodge Challenger  - 440 Six Pack
2015 Jeep Wrangler Unlimited - Willy's Edition


Offline cudabob496

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #78 on: July 06, 2017 - 04:30:02 pm »
Awesome. Might try to do one of these to help mitigate the heat. How much fluid does yours take?

extra 2 qts over stock I think.
I'm sure it helps with heat, but a good stack cooler up front is your best bet.
I have both, and the tranny is still going after 18 yrs. Plus I change fluid about
every 4 years or so. Use synthetic.
72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

Offline 734406pk

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #79 on: July 07, 2017 - 09:22:33 pm »
Thanks man. ME TOO! HAHA.

As an aside. does anyone run a deeper finned, aluminum trans pan like this? Any big cons? Is ground clearance an issue for anyone?

https://www.summitracing.com/parts/ati-723500?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-ati-performance-products&gclid=EAIaIQobChMIhtuqxdz01AIVRRuBCh0RHwQDEAQYAiABEgIwb_D_BwE

I have the same pan, hangs down a little lower than the stock pan but not a problem.  Just remember to watch out when going over speed bumps.... go slow!
1973 Challenger 440 6 pack auto 3.91 rear
2012 Dodge Ram 3500 dually 6.7 Cummins Fleece EFI Live
1973 Challenger 318 2bbl auto 2.73 rear 22.5 mpg RIP
1970 Challenger TA 340 4bbl auto-Sold and sad
1999 Dodge Ram 3500 dually 5.9 Cummins Fleece tuned VGT-sold
1995 Kawasaki ZX1100E & still alive

Offline cudabob496

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #80 on: July 09, 2017 - 07:20:14 pm »
You mentioned the water was running fast at the top of the rad.I don't run a thermostat, I run a plate with a 5/8" hole slows the water down so the rad can cool it. Been doing this for years never have an issue

bruce

for some reason that does not seem right.  If you are slowing coolant flow down in the radiator, then you are slowing
coolant flow down in the heads, which means your heads will run hotter. Without good coolant flow in the heads, you will
have greater potential for hot spot voids being formed.

also, with instant flow when starting up, your engine will not come up to proper operating temp,
when its cold outside, which can hurt your engine.
« Last Edit: July 09, 2017 - 08:27:43 pm by cudabob496 »
72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

Offline 340-FOUR- BARRELL

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #81 on: July 10, 2017 - 06:08:08 pm »
I've run restrictor plates that come in a package of three with different hole sizes. The restrictor plate fits inside the t-stat housing. Slowing/limiting the amount of coolant leaving the engine lets you control the amount of heat absorbed by the coolant. You can adjust the flow by the size of the hole in the round restrictor plate. If necessary change to a different size restrictor plate during winter or summer. It works in theory and works in practice.

Offline cudabob496

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #82 on: July 10, 2017 - 07:49:06 pm »
Lets assume your radiator is properly sized to remove any heat generated by the engine.

Then, coolant flowrate is determined by the orifice size of the thermostat. I run a high flow thermostat,
and the engine stays under 200 most all the time.  If I ran a smaller orifice size thermostat, that restricted
flowrate, then the engine would run hotter.  The smaller the thermostat flowrate, the hotter the engine would run.
So, seems the only need for a restrictor plate would be to make your engine run hotter, if the thermostat
was allowing too much flow. But all you would have to do is buy a thermostat that allowed less flow.

Or, it seems, a restrictor plate would also help maintain engine temp, if the radiator was oversized, and did too much
cooling. Rarely do we see that.

But again, restricting coolant flow can have bad consequences in the head, especially at 6000 rpm.
72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

Offline dsburch

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #83 on: July 28, 2017 - 05:41:17 pm »
Looking at the carbs bases, the spacer looks to be a thin metal type.  Adding a phenolic spacer carb gasket could help cool the carbs.  On the lean out, may be getting extra air from the secondaries, make sure they are shutting.  Did you debug against the PCV and other vacuum ports.  Otherwise, some goods tips here as always. 

Offline ted

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #84 on: August 18, 2017 - 02:30:36 am »
i dont buy that the transmission gets hot enough idling to make thr motor over heat
74 cuda, 70 challenger r/t

Offline Travis Blake

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #85 on: August 28, 2017 - 04:54:24 pm »
i dont buy that the transmission gets hot enough idling to make thr motor over heat

Guess I don't know what to tell you other than it's handy that you don't buy it mate, cause I ain't selling it. It's a fact.



1974 Dodge Challenger  - 440 Six Pack
2015 Jeep Wrangler Unlimited - Willy's Edition

Offline cudabob496

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #86 on: August 28, 2017 - 07:13:47 pm »
if garbage was in trans cooler, it could also be in your tranny. Tranny
may need a flush.
72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

Offline Travis Blake

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Re: 440+ 6 Temperature spike when stopped...even for a short time.
« Reply #87 on: August 28, 2017 - 08:25:26 pm »
if garbage was in trans cooler, it could also be in your tranny. Tranny
may need a flush.

Yep totally agreed, that is on the to-do list this fall before I pack it in for the winter.
1974 Dodge Challenger  - 440 Six Pack
2015 Jeep Wrangler Unlimited - Willy's Edition