[Fot] TR 3 Radiators

[Robert Lang]

 Henry, I know you and I have chatted about this in the past. I get the "it's just one more thing to break" philosophy. But IMHO, cracking a cylinder head that's run hot with umpteen hours of messaging, not to mention $$$ heaved at it, is not worth saving a few bux$ and labor hours by skipping the rad.
Now, to the core of the issue - pun intended - is that aluminum core of the Wizard has better heat transfer (apparently) due to a more efficient matrix. I have run a Wizard in the TR6 for something like 15 years. I use an electric fan because I seem to wind up spending a lot of time idling in grid. Absent silly issues like static timing being way off, which resulted in temp spiking, the only problem I've ever had was a radiator cracking due to stresses. Note that pylons in autocross are not kind to aluminum radiators. But I consider on radiator and one oil cooler cracking after more than 200 autocrosses to be "fairly good reliability".
I run a Wizard TR6 drop-in and a puller electric fan with the thermostatic controlled relay setup. Totally worth the money.
Regards,Bob Lang

    On Tuesday, March 14, 2023 at 07:30:32 AM EDT, yellow04 via Fot <fot at autox.team.net> wrote:  
 
 
I dropped a Wizard radiator into Old Blue and it solved the cooling issues Dentinger experienced for years in the old TR3. Actually, I have Wizard products installed in a couple street cars as well, they work. If they keep a Stag cool, they must have figured something out. 

One caveat worth mentioning, both Steve's car and mine run the early small mouth valance, which does not require much in additional ducting. On the wide mouth cars, a good ducting solution is critical. If I were racing a TR3A with that big grill, I would be so tempted to run an oversized radiator and the obligatory thermostat, that has been my solution with the TR4 and the TR250. I have seen it done in a TR3, I will admit you need to get a bit more creative with the limited space available.

I never saw the need for a fan in a race car, if you know when to run the thing, and more importantly when to shut it down, why bother?

Henry 

On 2023-03-13 20:00, Steven Belfer via Fot wrote:

I run a wizard radiator in my TR3 in the hot California sun. No problemo

~Steve 

On Mar 13, 2023, at 3:26 PM, Bryan Brazelton via Fot <fot at autox.team.net> wrote:



Hello Group, I am looking for recommendations on what Aluminum Radiator is the best for competition on the TR3 . I like the ones with fan brackets made onto the body of the radiator like the Wizard Radiator but it is on a 2 row instead of the others that are 3 rows.  Does anyone have experience with this?

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