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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