Hi

Actually, I have already installed my EGT probe. I installed it where the downpipes meet in the y pipe. I have done some homework, but didn't find an answer to my question. How much difference in temperature (ballpark) would I see between that position and in the manifolds. I know it WILL be cooler, but about how much? I put it there because it was convenient and I could measure both front and rear bank temps from one EGT.

I have read that Turbomax has run to 850 degrees C and then ran into problems. I wonder where his EGT probe is located. I have also read that you can "calibrate" your EGT to running lean if you run a dyno that has wideband O2 sensor. But don't really understand how this would work.

Thanks

 

I just picked up this OMORI EGT today...



On the poorly written English instructions, it says that 850-900 C is the 'optimal' peak you should see. That sounds high to me.

You mounted your probe pretty far down, but I wouldn't have the slightest re: how much lower than having it right at the manifold. I doubt if anyone here has any real hard data they can show you.

 

Go to a dyno and tune it to the best AFR for your car. Then go out and run it a the track and thats you EGT.

I got my EGT when I was running nitrous. When I pushed the car NA with boltons I got 780c. When I ran my 100hp shot of nitrous I would see 800-820c.

On the dyno I was at 12.5:1 AFR.

My probe is mounted in the front exhaust manifold.

I dont know how much different your readings will be to mine because you probe is further out.