cooling fan

92astro · Post by **92astro** » Tue Jul 22, 2008 7:10 pm

how much CFM does the stock clutch fan pull through the rad.? this is a 1992 astro

LiftedAWDAstro · Post by **LiftedAWDAstro** » Wed Jul 23, 2008 4:53 am

I don't recall there ever being a number thrown out there for the stock clutch fan. I do know, if you switch to an electric fan you need at least 3000 CFM to cool right.

92astro · Post by **92astro** » Wed Jul 23, 2008 4:35 pm

this is what i was thinking dual 12in fans one comes on at 180 degrees and the other comes on automatic with a/c compressor and both runs at 195 degrees.

LiftedAWDAstro · Post by **LiftedAWDAstro** » Wed Jul 23, 2008 6:14 pm

12" fans won't cool your engine enough! I ran dual 12" and then swapped one of the 12" fans for a 14" and it still was not adequate for any towing. The engine would stay just cool enough with the van empty though.

peter · Post by **peter** » Thu Jul 24, 2008 3:22 am

Do a search on the subject. There's a wealth of info already posted on it.

coolen · Post by **coolen** » Mon Jul 28, 2008 12:22 pm

i second the searching this site reply. i've looked for the same info, and found it no prob!!

92astro · Post by **92astro** » Mon Jul 28, 2008 9:13 pm

do you all think about these fans? http://www.parts123.com/parts123/yb.dll ... Z50000042b suppose to pull 1435 cfm of air each!

92astro · Post by **92astro** » Mon Jul 28, 2008 9:18 pm

this is the things i would have to buy separt http://www.parts123.com/parts123/yb.dll ... Z50000042b i have two choices 1 on at 185 and off at 170 or 2 on at 200 and off at 185?

LiftedAWDAstro · Post by **LiftedAWDAstro** » Tue Jul 29, 2008 12:50 am

Those tiny 10" fans will NOT cool your engine sufficiently.

s10-den · Post by **s10-den** » Wed Aug 06, 2008 6:29 pm

This is the same problem you run into on a v8 s10 with ac, cooling.
I have been through every kind of fan you can think of,only thing that would cool it with ac was a stock "7" blade fan off of a blazer and a HD clutch AND A CUSTUME made SHROUD!!
No ac, just about anything would cool it......

92astro · Post by **92astro** » Sun Aug 10, 2008 10:17 pm

okay here is what my plan is i keep my stock engine cooling fan and add a electric fan on the cndenser side pushing air through the condenser and rad. http://www.flex-a-lite.com/auto/html/universal.html

92astro · Post by **92astro** » Sun Aug 10, 2008 10:33 pm

this is a dual 16 in electric fans they are suppose to produce 6000 CFM and pull between 28-36 amps these should cool the engine and the a/c very well right?

peter · Post by **peter** » Mon Aug 11, 2008 2:09 am

You're on the right track if you're going for the max. But the 294 is a 31" wide assembly. You'll need the 295 which will fit your rad width at 28". I run the 295.

LiftedAWDAstro · Post by **LiftedAWDAstro** » Mon Aug 11, 2008 5:14 am

If you are going to use the "295" like Peter has, you can ditch the stock clutch fan!

92astro · Post by **92astro** » Mon Aug 11, 2008 8:13 am

are you talking about this one?http://www.flex-a-lite.com/auto/html/27 ... ctric.html

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