6 Blade Fans

64beam · Mar 23, 2008

I was looking at the 6 blade fan on Ebay, and I remember a post regarding the six blade Alpine fan. Are these an effective upgrade for the Tigers and is there anyone who is running one?

http://cgi.ebay.com/ebaymotors/Sunb...014QQitemZ330221269715QQrdZ1QQsspagenameZWDVW

Thank you, Robin.

Duke · Mar 23, 2008

Get yourself a Derale #17015 new for $39. No telling what kind of condition this old 6 blade fan is it. It could launch a blade through your hood. Regardless, the Derale will pull more air.

Reference - Cooling the Tiger Or how we experienced three summer vacations for the recommendation of the fan.

I have just installed one with the smaller pulley and all fits very well.

atallamcs · Mar 23, 2008

fan

The six blade fan makes a big difference on a Tiger--I have done this and other heat reducing things. But this is a minimum. Remember the fan needs to measure 15" across to fit within the shroud.
Bill

64beam · Mar 24, 2008

Thank you Bill and Duke for the replies. I was at a local club members house today and he showed me a nylon type fan which has been used in some interstate race cars with great effect. Duke, is the following picture of an engine fan similar to the type you purchased?

Thank you, Robin.

V6 JOSE · Mar 24, 2008

Hi Robin,

The fan you show there, is a Flex-O-Lite type fan. The fan blades stick back toward the engine about 1.5"/1.75" so you would need to see if you have enough room between it and the crank pulley. You would need a spacer made to move it far enough forward to clear the pulley, but you'd need to see that that wouldn't place the fan too far forward. I have wanted to use this fan. because you can see that it would move a lot of air, but all my applications have very limited space, and therefore, no room for a fan like that.

Jose

64beam said:
Thank you Bill and Duke for the replies. I was at a local club members house today and he showed me a nylon type fan which has been used in some interstate race cars with great effect. Duke, is the following picture of an engine fan similar to the type you purchased?

Thank you, Robin.

Duke · Mar 24, 2008

64beam said:
Duke, is the following picture of an engine fan similar to the type you purchased?

Sort of. Here is the Derale fan -

I had to slightly bend the blades so they would clear one of the remote oil filter lines.

alpine_64 · Mar 24, 2008

64beam said:
Thank you Bill and Duke for the replies. I was at a local club members house today and he showed me a nylon type fan which has been used in some interstate race cars with great effect. Duke, is the following picture of an engine fan similar to the type you purchased?

Thank you, Robin.

Rob,

Who was showing you that fan? I would be careful of the non-metal fans unless you are running a modified ally radiator. The platic/nylon fans are not as good. As for working well on race cars.. thats fine for them as they are not sitting in traffic for long on hot days or stop start driving.. and your cooling issues will not be when on the run.

Chuck Ingram · Mar 24, 2008

The nice thing about that type of fan is that the blades are behind the face.
It certainly gives more clearance from the rad.With a full shroud set up right cooling is greatly improved.

64beam · Mar 25, 2008

I understand the clearance issues associated with the fan change, but why would a nylon fan be a concern knowing the issues with metal fans? Why do you need a aluminium radiator to get better results? As I said, other people have had good results with them but I will wait and see.

Regards, Robin.

alpine_64 · Mar 25, 2008

64beam said:
I understand the clearance issues associated with the fan change, but why would a nylon fan be a concern knowing the issues with metal fans? Why do you need a aluminium radiator to get better results? As I said, other people have had good results with them but I will wait and see.

Regards, Robin.

Rob,

the plastic/nylon fans dont flow as much air as the metal ones. They are lighter, the do flaten out at speed but they just dont move as much at idle. I have one on my car.. and was one of the things i was going to change out, until i worked out the issue with the thermo fan. The reason i think it works on my car is that its not doing much at idle.. the thermo fan is and on the run the ally radiator is doing the work.. i woukld actualy take the fan off completely if i didnt think it was moving the hot stale air round inside the engine compartment which might be helping the carb out from breathing in as stale still hot air.