[DeTomaso] radiator deal

[richard at hitecheng.on.ca]

Just curious, has anybody tried opening up the by-pass holes, this would 
slow down warm up a little but it would reduce the restriction. I have never 
had a cooling problem but I am at the start of building a stroker motor.
Richard

-----Original Message----- 
From: JDeRyke at aol.com
Sent: Friday, February 25, 2011 3:13 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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