I appreciate the answers below. However, I removed the flex fan and put in a clutch fan and new aluminum radiator, and new high performance water pump. Yes, the fan is properly within shroud area. Guess my question was not understood.
I was having a problem previously with the car going from 180 degrees on the highway to over 235 when at idle. I had the old Harrison radiator and original water pump.
Now the cooling system stays at 180 at highway and will eventually creep up, after 30 minutes, to around 210. It stays within 210 degrees. This is an ok figure I am told for a 396 Big Block.
I want to supplement my cooling system with a SPAL pusher fan that will automatically come on at 200 degrees, cool down the system and turn off at 185 degrees.
Again, my only question is what SPAL radiator, e.g, the SPAL 16 inch pusher fan with 1920 CFM and 17.5 amps, or the SPAL 16 inch pusher with 2360 CFM and 21.6 amps.
Will the original alternator handle either one of these fans ? Or, will I need to upgrade the alternator.
Thanks,
Ken McDee
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"Craig A. Ellis" <[EMAIL PROTECTED]>wrote:
Oh yeah. Clutch fan. It'll sit in traffic without trouble. On a super hot day it'll creep up to 190 if I leave it idling with the AC on - like in a bumpertobumper traffic jam. I've been real pleased with it. Only complaint is no overflow can so I bought a nifty chrome billet alum one from Weapon-R that I'm gonna try to install this weekend.C-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Youngblood, Skip (T&K at Alcoa)
Sent: Friday, September 06, 2002 2:06 PM
To: '[EMAIL PROTECTED]'
Subject: RE: [Chevelle-List] Which Spal Pusher Fan for 67 SSAllot depends on motor combination and age of motor, Aluminum heads, wild cam etc.... . Craig your are a lucky man to have a big block hold that temp with copper rad... I wasn't able to do it. So I went Alum. No problems since. Do you have a clutch fan?-----Original Message-----
From: Craig A. Ellis [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 06, 2002 11:34 AM
To: '[EMAIL PROTECTED]'
Subject: RE: [Chevelle-List] Which Spal Pusher Fan for 67 SSMy system has a four core copper rad with 7 blade fan. 180 all the time.-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Youngblood, Skip (T&K at Alcoa)
Sent: Friday, September 06, 2002 11:59 AM
To: '[EMAIL PROTECTED]'
Subject: RE: [Chevelle-List] Which Spal Pusher Fan for 67 SStake the clutch fan off and get a flex fan. My car idles in traffic at 180 190 on a 105 deg day and I have to put thermostat in to warm up enough for the blower .highway temp 160.Skip 68SCBB-----Original Message-----
From: Ken's Email [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 06, 2002 9:38 AM
To: [EMAIL PROTECTED]
Subject: [Chevelle-List] Which Spal Pusher Fan for 67 SSI have upgraded my cooling system with a new aluminum radiator, water pump, fan clutch and shroud. Has gone from 230 plus at idle to a steady 210 with 180 degrees on the road.
I want to add a Spal Pusher fan. My question is which one ?
Do I go with the Spal 16 inch pushing 1920 CFM with 17.4 amps, or go with the
Spal 16 inch pushing 2360 CFM at 21.6 amps.
I have the original alternator in the 67 Chevelle SS. I do not have a stereo, AC, or power supplies. Will I have to upgrade the alternator.
Note: We conducted a test. With the 67 SS idling for 30 minutes it went up to
210 but stayed there. We used a floor fan pusing air through the radiator and it dropped to 185 degrees.
Comments please.
Thanks,
Ken McDee
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