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> Installed an EGT Gauge today..., Only took 10 minutes
McMark
post Nov 3 2007, 07:29 PM
Post #21


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I've had this Exhaust Gas Temp gauge sitting around for a couple months and while I had the car up on ramps getting a new fuel filter (and it needed it!) I decided to pop this guy in place.

I got the parts from Aircraft Spruce, this guage, this clamp-on probe, and this 15' extension cable. All told, I spend around $100. This gauge has the benefit of being semi-original looking, ambient temperature compensated, and matches my Micro1000 CHT gauge.

All I did to install it was drill a small hole in the exhaust tube, and insert the probe, tightened everything down, attached the cables and ran them to the cabin.

I drove the car around the block, which was very interesting. My car has been running very poorly ever since returning from the RRC, and I thought it was just the fuel filter. But it's not. It was very interesting to watch the needle moving as I opened and closed the throttle and it also helped me visualize the problem that I'm having. My car has been intermittently losing power, and I would be driving along at a nice EGT, and the car would lurch, and I would look over and the EGT was extremely low. And since it is my understanding that EGT is more affected by timing than AFR, I can be pretty confident that for some reason my timing is wonky. This may be the KitCarlson EFI dying or a bad wiring harness connection. It might be time to *GASP* install a spare set of carbs and a Mallory. (IMG:style_emoticons/default/ohmy.gif)

This was an affordable and easy upgrade. I expect that it will be a useful tool for tuning the motor and if anyone has an extra gauge slot to fill, I would recommend an EGT after you have a CHT.
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Posts in this topic
McMark   Installed an EGT Gauge today...   Nov 3 2007, 07:29 PM
TimT   Timing does affect EGT but not as drastically as y...   Nov 3 2007, 07:43 PM
Rand   This stuff is interesting to me. If for nothing el...   Nov 3 2007, 07:53 PM
McMark   I have an Innovate Motorsports LM-1 that will get ...   Nov 3 2007, 08:42 PM
ConeDodger   I have an Innovate Motorsports LM-1 that will get...   Nov 3 2007, 09:49 PM
McMark   B)   Nov 3 2007, 11:28 PM
restore2seater   Mark, Is this the same CHT gauge you are using...   Nov 4 2007, 12:19 AM
McMark   I have absolutely no complaints about it. Install...   Nov 4 2007, 12:49 AM
toon1   What are your EGT temps.? What is good temps for ...   Nov 4 2007, 01:12 AM
McMark   According to my reading on the RAT Forums, 1275 is...   Nov 4 2007, 01:16 AM
ConeDodger   According to my reading on the RAT Forums, 1275 i...   Nov 4 2007, 01:25 AM
gregrobbins   I have the O2 sensor bung welded on my header and...   Nov 4 2007, 10:45 AM
type11969   I've got an LM-1 with the aux box, it lets you...   Nov 5 2007, 09:03 AM
McMark   The EGT probe is very small. You would have to cu...   Nov 4 2007, 01:35 AM
ConeDodger   The EGT probe is very small. You would have to c...   Nov 4 2007, 03:40 PM
blitZ   Interesting info. How close to the head must the ...   Nov 4 2007, 10:03 AM
McMark   With all the talk of 'cold-junctions' and ...   Nov 4 2007, 02:06 PM
blitZ   IIRC, the thermocoupler measures the difference in...   Nov 4 2007, 03:29 PM
McMark   :rotfl: Don't poke a sleeping.... um.... well...   Nov 4 2007, 05:14 PM
ConeDodger   :rotfl: Don't poke a sleeping.... um.... wel...   Nov 4 2007, 09:03 PM
Aaron Cox   a switch has resistance...... so your true CHT re...   Nov 4 2007, 09:15 PM
TimT   Aaron, Mark, you can extend an egt harness, you n...   Nov 4 2007, 11:06 PM
McMark   Huh... Neat! :D But that's a special sw...   Nov 4 2007, 11:08 PM
ME733   ............Well aircraft spruce is a good source ...   Apr 12 2010, 08:57 AM
Jake Raby   If ind that the TIV engine is VERY responsive at W...   Apr 12 2010, 10:18 AM
ME733   ...westach...is available at aircraft spruce.....a...   Apr 12 2010, 06:51 PM
Racer Chris   Westach is cheap. You get what you pay for.   Apr 12 2010, 08:01 PM


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