hotrex

good to see you, i havent seen you on aim in ------ forever, gues u just dont love me anymore.

BLAAST

All the claims on the fusion point of pure aluminum are irrelevant. No component of an engine is made from pure aluminum. Once allied with other elements, aluminum alloys have a much higer melting point.

I don't agree with the 4 probes or nothing argument. Of course, it's the best setup but an EGT, even with one single probe mounted on the hottest cylinder or on all 4, is still very usefull in determining when it's time to let off the throttle.

Feels good to see that EGt temps are pretty standard from car to car....

I own a H22A turbo @ 20 psi.

Partial thr: 1350 F

WOT: can climb up to 1500F if I hold it for a while. That's when I decide to let off.

pa2play

my probe is 1.75 inches from turbo outlet, if that helps

Tom-Guy

Average WOT EGTs are still enough to melt an aluminum head. What everyone is missing is the coolant flowing through the head.

Good for you.

Say, what AFRs do you run to hit 1500 deg F single cylinder EGTs on extended pulls? What's your MBT at 20 psi?

projekteg

lol, i hope you mean inlet. egt probe is suppose to be in the manifold, no more than a couple inches away from the exhaust port :P

pa2play

The instructions say for turbo applications to put it 1-2 inches from turbo OUTLET, take a look.
http://hp.autometer.com/instruction_...ctions/514.pdf

Darkreign

Highest I had it was 930 degrees fahrenheit, EGT at 1,5inch from turbo outlet
But then, my engine was built for boost and endurance racing

projekteg

you want to read your egt's where they'll be the hottest, which is a couple inches in front of the #3 runner, do some searches as to where people have them installed

Tom-Guy

Ah, yes, Autometer. Maker of the cheapest instrumentation available, often found in cars with more lbs of bodykit than hp at the wheels.

There is a pressure-enthalpy conversion across the turbine wheel that drops EGTs several hundred deg F. Expect 800 deg F MAX after the turbine. Expect not to know anything important from having this information.

B16Drag

Also a pain in my *** to drill through a cast iron manifold, so I settled drilling a few inches from the outlet. I just need to know that its is a 100-200 degrees cooler than if it was at the inlet of the manifold. Besides I got thermal wrapping! haha!