33 hot rod cooling

[mkrt1970]

I picked up my 33 hot rod kit in 2012 / I am having trouble keeping the coolant temp down when I run my airconditioning. Does anyone know what coolant fan came with this car / I am wondering what CFM it produces?

Any other suggestions would be appreciated.

[Olli]

Did you install a shroud such as the one sold by Mike Everson (Replica Parts, vendor on this site)?

Olli

[mkrt1970]

No, I have not / engine runs 165 degrees without air on.
I will try and find that shroud and maybe give it a try.

Thanks

[Olli]

The shroud can only help. http://www.replicaparts.com/Hot%20Rod%20Radiator%20shroud%20page.htm
I have no idea what the CFM rating is on the FFR fan. I don't seem to have a temp issue when running the A/C.

What temp are you considering to be too hot? 165* is too cool...

Olli

[mkrt1970]

210* and possibly climbing, I turned air off after that,
What is to hot 225*

Mike

[Olli]

Well yes, 225* is too hot.

Olli

[Robert Andrew]

I had a similar problem on a 39 Ford and after installing different fans, including engine driven fans, I was about to give up and live without AC when driving slow, and I tried on last idea and changed the water pump. I had installed and imported chrome water pump on the SBC engine, qnd apparently the design of the impeller was inefficient, or possibly too efficient. If the pump moves too little water the heat exchange in the radiator will not dissipste enough heat, and if too much water moves through the radiator, the dwell time is not adequate for proper heat exchange. Often times it is beneficial to run a thermostat to slow down water flow to allow more dwell time. It's a delicate balance.

Also check for leaking head gaskets which can introduce combustion gases into the cooling system.

Good luck.

[mkrt1970]

Thanks for the advice, I was thinking that I may need to replace my thermostat, I am running a 165, maybe the coolant is not dwelling in the radiator long enough.

[tazguy]

run a 180 thermostat