[DeTomaso] Replacing stock cooling fans

[detomasoregistry at gmail.com]

Henrik,

I presume you reviewed this link?:

http://www.provamo.com/Members/TechInfo/Cooling.asp

Chuck





Hi all

 

I have a new stroker with aluminium pump, rollers and a 10QT oil pan. 

 

I'll go for a Fluidyne radiator with dual pullers and will see if it does the trick.

 

Any reason to go with Quella's instead?

 

Thanks for all the tips!

 

/Henrik

 

Från: JDeRyke at aol.com [mailto:JDeRyke at aol.com] 
Skickat: den 15 mars 2010 20:23
Till: Henrik Svensson; detomaso at realbig.com
Ämne: Re: [DeTomaso] Replacing stock cooling fans

 

In a message dated 3/15/10 2:30:21 AM, hsv at traen.se writes:




What's the "standard" solution out there? Do you still have the stock fans? If replacing
them, what do I need to get instead to cope with the cooling? I have a stock radiator in
good condition.


IMHO, the 'standard; solution is to replace the stock radiator with a Fluidyne aluminum
one! 
The real problem is, ANY stock radiator just will not flow enough water through it to keep
the engine cool in traffic. Its internal tubes are too small. And the stock fans cannot
push enough air to keep the water temp below boiling around town. 
The following mods help but do not solve the problem:
-dual shrouded sucker fans at least 3X stronger than stock, with the stock fans and mounts
removed
-a shield disc on the water pump impeller
-aluminum water pump
-slightly smaller diameter water pump pulley to spin the pump faster
-16 lb radiator cap
-blocking off the warm-up passage in the block with a freeze plug
-Wiring one fan to be 'on' all the time with a manual switch for the other one and
discarding the leaky stock fan switches
-180 degree thermostat
-adding a Laminova oil cooler & oil thermostat
-roller rocker arms for less frictional heating of the oil and a 10-quart oil pan
-running 12 degrees of initial ignition advance with 35 degrees TOTAL advance

I did all these with little or no improvement. But changing to a large-tube aluminum
Fuidyne rad immediately dropped the water temp 20 degrees F!
The only other thing that consistently lowers water temps is to completely discard the
thermometer. This will radically lower the water temp but is not healthy for your engine
in the long term. Good luck- J DeRyke, living in the Nevada desert



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