429/460 Overheating Issue

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Re: 429/460 Overheating Issue

Post  jasonf on August 19th 2017, 2:50 pm

Speedwaypj wrote:  jasonf  the video was prior to me installing the shroud......Thx for the link.

But does the shroud go 2' back to the engine?

Off topic but why does your radiator lay forward and not back all the cobras I have seen?
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Re: 429/460 Overheating Issue

Post  jasonf on August 19th 2017, 2:50 pm

Speedwaypj wrote:  jasonf  the video was prior to me installing the shroud......Thx for the link.

But does the shroud go 2' back to the engine?

Off topic but why does your radiator lay forward and not back all the cobras I have seen?
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Re: 429/460 Overheating Issue

Post  Speedwaypj on August 19th 2017, 10:28 pm

Yes, the fan is about 1 1/2 ft from radiator......
...with the Antique & Collectibles body/build, the radiator faces front to gain the most air efficiency......

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Expansion/surge tank (and overflow tank);

Post  Speedwaypj on August 24th 2017, 11:55 am

I integrated a 2qt expansion/surge tank (and 1 qt overflow tank);
Initial timing @ 13 BTDC ; Total @ 33 BTDC (w/o vac)
80 F ; Ran Aux garage fan.

Much better; after 45 minutes of running (@idle) radiator pressure only went to 6psi and temp stayed under 210F.
So I'll plan an electrical Puller with high CFM...and the mechanical Fan

Time to move past this now.
Again, thanks all!
PJ

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Re: 429/460 Overheating Issue

Post  IDT-572 on August 24th 2017, 1:45 pm

If your radiator cap is the highest point in the system ,and it's completely full of water , it will push out a quart every time it gets up to about 140 degrees because of the water has no where to go as it heats and expands.

You know, I run 460's of all shapes and sizes on my run in stand. It has a big after market bolt in fox radiator and one 12 inch electric fan.

With a Meziere standard flow or a Moroso belt drive old school running a stock pump, I have to turn off the fan to get them to heat up.

Small ford or chevy will get hot after 20 min with same set up.
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Re: 429/460 Overheating Issue

Post  DILLIGASDAVE on August 25th 2017, 2:38 am

Speedwaypj wrote:...........So I'll plan an electrical Puller with high CFM...and the mechanical Fan.........

IMO if you're going to use a high CFM elec fan(s) I honestly don't see any reason to also use a mech fan as well.
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