[DeTomaso] Radiators

Mon Jun 16 19:19:54 EDT 2008

Goran,

Sorry to hear about the damage to the car. I am pleased you did not get injured or killed in the process.

Peter Kovacs
Property Equity & Mortgage Mgmt
209 345-6708 
209 523-4919 fx

----- Original Message ----
From: Göran Malmberg <hemipanter at hemipanter.se>
To: JDeRyke at aol.com; kenn_green at yahoo.com; detomaso at realbig.com
Sent: Monday, June 16, 2008 3:25:13 PM
Subject: Re: [DeTomaso] Radiators

I was unlucky to slipp my feets the other day when I was to roll the car in 
to the garage,
so I fell down to the rocker panel with one foot on the floor and the other 
on the clutch pedal.
The clutch pedal didnt stop the car so it rolled in under another car that 
was elvated in the front.
A broken fender and front window become the penality. Anyway, as I removed 
the radiator
I shoot an image of it if anyone is interested to look at it. The element 
itself is 27x15,5x2 inches.
And it has 50 rows. The reservoirs is conical and as small as possible, but 
it is stil a very tight fit.
I made the reservoirs myself from brass that is silver soldered. Then the 
radiator shop soldered
in the desired copper element.
Picture is fare down the site http://www.hemipanter.se/
I may put some image of the tragedy as well, as soon as I recover from the 
shock....
Goran

----- Original Message ----- 
From: <JDeRyke at aol.com>
To: <kenn_green at yahoo.com>; <detomaso at realbig.com>
Sent: Monday, June 16, 2008 9:53 PM
Subject: Re: [DeTomaso] Radiators

> MD's Ron Davis racing radiator-
> Single pass (aluminum)
> 4 core (comes out to 6 inches thick)
> 30-1/4 inches wide at the widest point (the bottom side are tapered some)
> 16 inches tall
>
> Ken, did you mean the overall width was 30" or only the 4-tube core? 
> Pantera
> radiators are around 29-1/2" wide overall with the core at 26 or so inches
> wide.
>
> For reference to all who can't afford to experiment, a stock copper/brass
> Pantera radiator is 26" wide x 15" high by 2-1/2" thick, with a tank 
> 1-3/4" wide
> on each side and is a dual-pass crossflow style radiator- or two separate
> designs, one of which didn't work. My 2nd design stocker weighed 40 lbs 
> but may
> have had scale built up inside after 15 yrs of use.
>
> A Fluidyne aluminum is also 26" wide x 15" high but is 3-1/2" thick, with 
> two
> side tanks each 1-3/4" wide, and is a dual-pass crossflow. It weighs 22 
> lbs
> without the fan shroud or shroud extension. It is a dual-pass 4-tube 
> style.
>
> A '90s Corvette/Z-28 radiator is a 12-lb single pass crossflow one-tube
> aluminum radiator 25-1/2" wide x 18" tall, swedged into two 2-1/2" wide 
> plastic
> tanks. GM gets away with one tube by making the inside of the tube bumpy 
> (Modine
> Radiators calls it a 'tubulator core'), thus vastly increasing the 
> turbulence
> of the water and increasing its heat transfer. I've often thought of 
> taking
> two of these good cores and welding them into aluminum tanks for a custom 
> setup,
> but my Fluidyne works so well to 150 mph, I haven't bothered. The plastic 
> GM
> tanks often crack from overheating and cannot be repaired so don't bother 
> to
> try adapting stockers to a Pantera. At very low speeds around town with 
> the
> front-mounted A/C on, I've seen 250 F in our stock Z-28. The single 
> electric fan
> isn't even designed to come on until around 225F!
>
> Some say that dual-pass radiators increase the restriction to flow since
> water is forced across the core twice, while a single pass radiator means 
> that
> water is only forced across (or down) once, thus using less power or 
> adding less
> flow restriction. Generally, water that stays in a radiator longer 
> transfers
> more heat but the amount of temp loss from two passes is not proportional- 
> you
> don't get twice the cooling. The actual flow restriction is a function of 
> how
> big the tubes are and how many you pack into the space available. In our 
> usual
> balancing act, more tubes means more water flow but less air flow through 
> the
> core. More bigger tubes helps but there's a size limit.
>
> Hall was an innovater! The Phoenix radiator was std dimensions but thicker
> 7-core brass radiator that weighed at least 50 lbs- essentially two cores
> soldered in the same tanks, and held up to a light bulb by a strong man, 
> no light
> could be seen, so how much air actually made it thru is problematic. Hall
> himself said they didn't work like he expected and he soon stopped selling 
> them-
> apparently except to MD. Hall also built a few wild slanted-core radiators 
> in
> which air from the grille flowed straight thru in spite of the radiator 
> being
> radically slanted. This design allowed a little more frontal surface area, 
> too.
> Never heard of any owner results on these. FWIW- J DeRyke
>
>
> **************
> Gas
> prices getting you down? Search AOL Autos for fuel-efficient used cars.
>
> (http://autos.aol.com/used?ncid=aolaut00050000000007)
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