I just putt an off the shelf, from Summit Racing, Griffen "drag"
radiator in the TR6. $225. Dimension is 17 wide by 19 high. The
input, output and filler are all in the correct place. The lower outlet
does not work in the stock position, so I tilted the radiator forward to
almost touch the top of the front fascia. I used a couple of L
brackets and some angle brackets with holes [From Home Depot!] in it to
mount the unit. Worked like a charm. I ran several 25 minute sessions
at Seattle Raceway Sunday and the temp never got over 180. Very
pleased. Not so happy I threw a bolt holding the right caliper on.
This allowed the caliper to "flip, breaking the lower bold mount --
interesting slapping on the binders from 120 or so and hearing great
clunking sounds [though it did slow down ok].
Chuck
Larry Young wrote:
> Joe,
> I installed a commodity Chevy radiator in the smallest size available
> ( I think it was a Tru-Kool from Speedway Motors for less than $150).
> It almost fills the space between the fenders. Cut off the filler neck
> and have a patch welded over the hole. I also had some tabs welded
> near the top on the sides, in order to attach stays. Fabricate some
> simple brackets to move the bottom of the radiator forward. I fill
> through a Canton expansion tank mounted on the firewall (from Pegasus
> and others). The expansion tank is plumbed the same as the original
> heater (take off from rear of block, return to pump). If I were to do
> it again, I'd dispense with the expansion tank and have a filler neck
> welded onto the thermostat housing. Find radiator hoses by looking
> through the picture book at the parts store. The biggest problem was
> finding some tubing in 1 3/8 inch size.
>
> This is one of the best things I've ever done to my TR3. Even with 95
> degree temperatures in Oklahoma, there are no worries about
> overheating - one less distraction.
> Larry Young
>
>
> Joe Boruch wrote:
>
>> I put in a new Oil Temp gauge for my race at NHIS this past weekend
>> and was surprised to see the temps going to 260 during the race. The
>> old gauge was 25+ years old. Not sure if it was the old gauge or the
>> new one that is the issue or if the temps are really that high. On
>> the cool down lap it did, however come down to 200. In previous
>> years 220 was about as high as it would go. Water temp was 210. I
>> took the screen off of the back of my grill and water dropped to 200
>> and oil peaked at 240, so the extra air helped (it was also a 20 deg.
>> hotter day after removing the screen).
>>
>> I already have 2 oil coolers, but am using a stock looking/size TR3
>> aluminum radiator. I would like to change over to a wider crossflow
>> radiator and since I am racing SCCA so the rules allow it. Does
>> anyone know of an off-the-shelf (i.e. not too expensive) crossflow
>> aluminum radiator that will work in a TR3? I understand that some
>> hose rerouting will be needed. Joe(B)
>>
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