Chevy & GMC Vans

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

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.

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.

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.

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

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

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

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?

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

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......

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

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?

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.

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

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