[DeTomaso] radiator deal

Steve Hawkins shawkins777 at comcast.net
Fri Feb 25 17:45:40 EST 2011


Another issue that affects flow is the fact that out water pumps are
basically being under driven because of the crank to water pump pulley
ratio.  Compare the Pantera ratio to most any stock street driven car ratio
to see what I mean.

Steve

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of JDeRyke at aol.com
Sent: Friday, February 25, 2011 2:14 PM
To: kenn_green at yahoo.com; detomaso at realbig.com
Subject: Re: [DeTomaso] radiator deal


In a message dated 2/24/11 2:40:49 PM, kenn_green at yahoo.com writes:

> Basically that increased flow rate is necesary for high HP, and the 
> flow
> rate is limited by the Pantera cooling system design, and by multi-pass 
> radiators in particular.
> 
I disagree with the last part. The main flow restriction in a Pantera is 
from the thermostat. You can verify this easily in your own Pantera by 
removing the thermostat entirely (no other changes) and driving your Pantera
on a 
hot day. You will have trouble getting the water temp to 150 F! This is 
regardless of what radiator you have. One member from AZ was amazed to find
that 
while running in his stock GT-5 (brass radiator, stock water pump and 
factory pusher fans but no thermostat) , he only showed 150-170F- in June in
Las 
Vegas while thrashing it hard on track in 2nd & 3rd gear. Adding ONLY a 190F

thermostat shot his operating temperatures up to 210-220 on an easy 500 mile

road trip up to my place in northern NV. Try it and see. Cheers- J DeRyke
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