[Fot] EGT gauge installation

[John H. Hasty]

Russ... might be different in cars, but with our two stroke racers readings at 3000, 5000 were just as important as 12000.  Of course our carbs allowed jetting in all those ranges.  I still pay attention to readings @ 4500 in our TR3

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On Feb 26, 2019, at 10:26 PM, Spitfire Racing via Fot <fot at autox.team.net<mailto:fot at autox.team.net>> wrote:

John, typically folks use #1 and #4. In that way they get an accurate read on each carb with minimal mixing. The thermisters are installed equal distances from the head, usually 5-6” down the manifold. Angle the thermisters in such a manner that the connecting wires are not likely to create an obstruction.
A dual channel EGT gauge is a great tool for diagnostics and also tuning.
The most accurate temperatures are at the end of a long straight with wide open throttle. Ignore any readings while stationary or at part throttle.
As far as the gauge placement there’s options but all the cars I have built have them mounted on the top of the dash, just outside the field of vision. That way all it takes is a quick glance at the end of a straight.

Russ
Spitfire #49

From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of John Styduhar via Fot
Sent: Tuesday, February 26, 2019 12:30 PM
To: Triumph 'Friends of Triumph
Subject: [Fot] EGT gauge installation

I need some tips on installation of a dual probe EGT gauge on the TR4 race engine with twin Strombergs-
What two cylinder to use for probes.
Optimum EG temperature for tuning purposes.


Thanks

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