Good CFM for an Aux fan

[e30Rob]

So i been looking at Aux fans for my e30 M50 swap and was wondering what is a good CFM for the fan to be on my M50. Any help will be great.

-Rob

[e30s52]

So i been looking at Aux fans for my e30 M50 swap and was wondering what is a good CFM for the fan to be on my M50. Any help will be great.

-Rob

I have a spall pusher fan on mine from bimmerworld but I would get a perma-cool if I had to get another one.

[e30Rob]

well i mean i have no issues like ordering one from summit...i was more looking for a good CFM rating on them.

[e30s52]

Mine is 1300 I think and the perma-cool runs around 2100 I think maybe more.

[e30Rob]

DOnt supose you have a link to where you bought the 130cfm do ya, or eeven the erma cool your speaking of?

[e30s52]

Yeah I will find the link. I will have it in a few minutes.

[e30s52]

http://store.bimmerworld.com/shared/StoreFront/default.asp?CS=bimmerworl&StoreType=BtoC&Count1=868114650&Count2=785255074&CategoryID=7&Target=products.asp

http://perma-cool.com/Catalog/Cat_page16.html

or you can order the perma-cool off summit.

[e30Rob]

Hey man thanks alot. i appreciate it How think as yours as i have been hearing if you run one to wide it wont fit in between the radiator and the M50. Also what size are you running 16"?

[e30s52]

No problem. O and mounting can be kinda tricky. Some people are able to mount them engine side but my car didnt have enough room so I had to put it on the bumper side. Just make sure before you order one.

[e30Rob]

what size are you running? i'm thinkin a 16" might be to be and opting for maybe a 14" with the same CFM rating

[e30Rob]

opinion?.......

http://www.summitracing.com/parts/MRG-1987/

[e30s52]

what size are you running? i'm thinkin a 16" might be to be and opting for maybe a 14" with the same CFM rating

I have the 16in but you have to make sure it will work outside. Some brands of fans say they are not weather protected.

[e30Rob]

what do you mean work outside...you mean like outside the car...lol or do you mean bumper side of the rad?...lol

[e30s52]

what do you mean work outside...you mean like outside the car...lol or do you mean bumper side of the rad?...lol

As in if it gets water on it your done and have to buy another one.

[MR 325]

1300-1600 seems to do the trick.