PY Online Forums - Bringing the Pontiac Hobby Together

PY Online Forums - Bringing the Pontiac Hobby Together (https://forums.maxperformanceinc.com/forums/index.php)
-   Pontiac - Street (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=418)
-   -   Clutch fan or Straight Blade only???? (https://forums.maxperformanceinc.com/forums/showthread.php?t=762145)

Badss540 10-01-2014 05:59 PM
Clutch fan or Straight Blade only????
 
Hi Guys,
Finishing up the restoration on the 67 Firebird 400 /TH400 and thinking for a street car approx 330HP with stock radiator and shrould what would be the best fan assembly to use to keep it COOL. A fan ( 4blade 5blade 15" 17" ?? ) straight to the pully or a clutch fan (what size) and 4 or 5 or 6 or 7 blade .. thanks for any input.

geeteeohguy 10-01-2014 07:01 PM
I'm running an 18", 7 blade flex fan from a '69 Caddy on my '67 GTO which is stock. Pulls a ton of air, is quiet, and runs cool. Running a 19.5" clutch fan with a Hayden clutch on my '65 GTO and it runs cool and works fine. Whatever you run, use a 7 blade fan that is at least 18" in diameter to pull enough air through the core.

68 Firebird 10-01-2014 07:09 PM
fan
 
X2 with Geeteeoh guy

Running a 7 Blade fan from a 76TA that had was an Auto and had AC. That with
a Hayden HD fan clutch has served me well. Along with a 180 stat.

Gerry

Formulajones 10-01-2014 07:12 PM
Here's something you might find interesting.

http://www.network54.com/Forum/21565...+Fan+Dyno+Test

ta man 10-01-2014 07:29 PM
Quote:
Originally Posted by 68 Firebird (Post 5280307)
X2 with Geeteeoh guy

Running a 7 Blade fan from a 76TA that had was an Auto and had AC. That with
a Hayden HD fan clutch has served me well. Along with a 180 stat.

Gerry
Same here but from a 80TA that had air.


All times are GMT -4. The time now is 12:52 PM.