CFM rating? and Fan Q's

[CobraDuce]

I'm going to convert to an electric radiator fan for my engine swap and was wondering what kind of cfm rating should I get concetering It's going to be a mild 351w with someware between 250 and 300 hp. I'm also concetering mounting it in front as a pusher has anyone ever done this, will I run into any overheating or clearence problems? With the v-6 rad in place now it looks like i could fit an electric in.

Thanks a lot

Rob Davidson

 

[COBRAIIW]

600cfm should be about right,650 if you work the heads.

 

[CobraDuce]

No im not talking about the carb Im talking about the radiator fan.

But thanks any way

 

[77sleeper]

big as possible, best bet is the taurus fan, but be careful, it does not fit some cars, heard rumor that the LS1 fan might work, dunno though

 

[98CobraClone]

do any of the summit universal trimline style fans work? I've seen some of the import dual fan setups and they're fairly small like a II. I've never checked dimensions though

 

[COBRAIIW]

oops! sorry,whenever i see cfm i always think carbs!

 

[Cameron's78]

I have a non-standard 302 that came with a four-blade fixed-blade fan. I don't have the money for an electric fan swap yet, how about a Summit 7-blade flex fan?

 

[Power Surge]

I suggest the early 90s Taurus fan as well. I put one in the Thundersnake. It fits the V8 radiator very well, with only minor trimming. And it's dual speed and draws WAY more air than any aftermarket fan. I got mine on ebay for $50, they are cheap and often on there.

 

[Cameron's78]

$50?! I didn't realize they were that cheap...man...screw the flex fan...

 

[cobraii351]

Be warned they are a VERY tight fit! I shimmed my radiator front a bit, and I am using the earlier "short" MII water pump, and still had to use countersunk bolts on the WP pulley. But man does it move the air!

Tim

 

[Cameron's78]

Is it a little wide? I have a good 3 inches or more between my radiator and block...like I said I have a non-standard 302.

 

[cobraii351]

Is it a little wide? I have a good 3 inches or more between my radiator and block...like I said I have a non-standard 302.

I'm not sure what you mean about a "non-standard 302"? but here is a coupe of pictures. I cut about an inch off of the built-in shroud that is part of the fan all the way aaround. Hope this helps.

Tim

 

[Cameron's78]

That'll definitely fit, thank you for your help!

A previous owner installed another 302 other than the ones you could order from the factory. I'm still doing research to figure out where it's from.