Glad its working for you
Glad its working for you
A shroud appear to be one thing these cars missed when new, good to hear you got it handled.
I finally had time to test blocking off the 6 cylinder radiator hose opening a few nights ago. I let the car idle in the drive way for about 15 to 20 minutes and the temp got up to about 182 degrees (It was a cool night, 65 degrees or so) I left the car running and added a temporary block off made of thin cardboard and Gorilla Tape. The temp dropped to about 177 with the hood open while I put the block off in place, but as soon as I closed the hood it slowly climbed back up to 182 withing 5 minutes or so. I then opened the hood, removed the temporary block off and let the car run with the hood open. With the hood open the temp went down to 173 after about 5 to 10 minutes. So the blocking off the opening basically made no difference. Having the hood open helped but it's obviously not a practical solution.
I'm not sure if the results would be different on a hotter day, but that's the results of my test for what it's worth.
Brian
I run my 55 without the hood. It still runs around 190-210 on the highway and will creep up slowly in town and up to as high as 230 at stop lights. I am looking for a guy in rochester who can bend me an aluminum shroud right now. Do you guys think it would be better to buy a new fan that comes with a shroud?
Although, now that I look at the situation closer, do you think that a shroud would make that much difference with mine?IMG_0305.JPGIMG_0306.JPGIMG_0307.JPG
Was that a 'quarter mile at a time' car? I don't have a great deal of experience cooling a big block, but it looks to me like you have a lot of restriction to air flow thru your radiator...??
It is set up to drag race, but with no hood there is very little restriction to the radiator at all.
Anything you can do to get more air through the radiator should help. If you can fit them, I recommend the dual 11" SPAL fans since they cover the entire core and pull around 2700 CFM and have an integrated shroud. My Derale dual fans are supposedly rated at 4000 CFM. A shroud might help, but my bet is your fan is inadequate, and for sure you can do better. IMO there's nothing that makes a big block inherently more difficult to cool.
56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension
Other vehicles:
56 Chevy 2-door BelAir sedan
56 Chevy 210 4-door sedan
57 Chevy 210 4-door sedan
1962 327/340HP Corvette
1961 Willys CJ3B Jeep
2001 Porsche Boxster S
2003 Chevy Silverado 2500 HD Duramax
2019 GMC Sierra Denali Duramax
I'll see if I can find a shroud that fits before I spring for the dual fan system. Fingers crossed.