i got a 92 camaro z28 that was a 350 tpi and was wondering how much air the fans actually flow as compared to some of the aftermarket fans.... reason for asking is i have a carbed 406 and it tends to get a lil hot in the summer even when they are constantly running... i have a 2 yr old brass 3core radiator with a 160 stat.... please help me out if u can ...

 

Stock dual fans are trash.

 

ok then since they are trash..... what is a good fan setup to use????

 

I have the flex-a-lite dual fans on my car and they have worked great.
From what Ive seen in the car mags a big aluminum radiator with your choice of high cfm fan is the way to go.Ive got a three row copper radiator also.The alum rad is not cheap.

 

I dont agree. I think the stock dual fans are good enough. Both my supercharged and N/A L98 cars have the stock dual fans and it works great. I've got the blown one setup so that it never goes over 200 even in hour long stop and go traffic in the sunlight at noon. This is with a hot underhood blower! Since you said your fans are always on then its not a fan switch or electrical issue. Have you verified that the thermostat is opening? (check for pressure in upper rad hose when its hot). Also, is this happening at a stop, when you are driving, or all the time?

 

its fine when driving but when im stopped it gets to like 210 with the 160 stat... in heavy stop and go traffic as well... i was told that 406s run warmer also...

 

old post i know but does anyone have the cfm rating for the 91-92 stock dual electrc fans??? ive always been curious to know if i actually went backwards with my 2100cfm 16" singlel fan...

 

How many times do I have to tell you: you are too worried about the fan's cfm. You underestimate the value of a radiators surface area.

 

lol...i know, i know; cant a guy be curious?? i know i will cool better now but i still am curious of the stock fans cfm rating.

 

Everyone else, yes. You...umm no

 

if you are that curious about the fans cfm rating you can call up chevrolets customer service.
tell them your restoring the car and if you ask they will send you 2 booklets one with every little detail about all stock options and i mean everything you could think of. the booklet other with parts stores specializing in chevy's cross country.

i have an 83 and the packets were free for me but the guy mentioned it costs for some newer cars

 

Do they have something like that for pontiacs?

 

im sure they do because originally i called a chevy dealership then got transfered to a chevy customer support then back to GM hotline before i got some usefull information. good luck, try calling the dealership