Which Electric fan is better and why?

[Garageaholic]

Is the E32 fan better than the Stock E30 fan? If so, why? More powerful?

I need a fan that's going to cool my M30 engine in my E30 and I dont think that the E30 stock fan can handle the job....

[Garageaholic]

Here are pictures of the E30 fan that I have and the E32 fan that I could use....

[SchnellerVert]

bigger radiator and shroud plus good coolant. BFc was having a GB on Carr industries aluminium radiators.

[Garageaholic]

Should I mix a 60/40 mixture instead of 50/50? will that help at all?

I don't have room for a clutch fan.

[HST]

Just get a spal fan, they make very thin ones that are still rated at 1600 CFM.

[Garageaholic]

How much is the stock E30 rated for? any idea?

[Garageaholic]

For those of you who don't know. SPAL website is

http://www.jaycorptech.com/search.aspx?SearchTerm=spal

Does anybody know the CFM rating of the stock E30 condenser fan so I have some sort of reference?