[TR] Second request - 6 cyl engine cooling fan 8 blade or 13 blade for best air flow?

[Matt]

 If for no other reason than to let you know that your post went out and is being read!  Here is my $.02.   My 71 TR6 came with a yellow fan (didn't get the blade count).  It is my understanding that the later more bladed red fan was an improvement to increase air flow.  Over the years while parting out cars I picked up a red fan and I believe it is now on my 71.  I have no info on a blue fan. Side note, am I the only one that has had multiple people stop you while driving a Triumph to say - "I have one of these in my yard, would you like to come get it?"   While they were all piles of rust not worth saving I got 2 Spits and a TR6 exactly that way.  2 in Miami and 1 in Alabama. Matt

---------- Original Message ----------
From: aribert neumann <aribertn at gmail.com>
To: triumphs at autox.team.net
Subject: [TR] Second request - 6 cyl engine cooling fan 8 blade or 13 blade for best air flow?
Date: Mon, 22 May 2017 22:57:17 -0400


Greetings all:

I figured that I would rephrase my original question since there were no responses.  It is my understanding that the later TR6 had a 13 bladed fan - correct?.  Does this fan move more air (cool the coolant better) than the earlier yellow 8 bladed fan?       If someone has a TR6 with a 13 bladed fan, roughly what is its diameter?  
 Greeting all: My '71 GT6 came w/ an 8 bladed yellow (off white) cooling fan.  I bought a 2.5L TR6 engine, from a '73 TVR, that came w/ a 13 bladed blue cooling fan.   The blue fan has a larger hub / shorter blades.  Any idea as to which fan draws the most air thru a radiator?   TIA - off in digest mode awaiting your responses.
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