What should EGT temps be at?
 

just hooked my egt gauge up, and was wondering what the temps should be at normal driving and in boost. My set up is d16z6, 14b 9-10 psi

Re: What should EGT temps be at?
 

i believe thats gonna depend on whether its mounted pre turbo or post turbo. pre-turbo are gonna show higher if i remember correctly.

and if its helpful i believe the melting point for aluminum is 1350 degrees F.

Re: What should EGT temps be at?
 

depends on your setup, 1100-1300 can all be normal but it depends on how it was tuned and where your optimal temp is at but u wont know that till its tuned

Re: What should EGT temps be at?
 

Melting point of Aluminum is 1218 degrees F.
Exhuast (Gas) temps can be much higher with out melting stuff.
Probe installed on Runner #3, 2 inches from head I read 1275 degrees consistantly at freeway speeds.

Re: What should EGT temps be at?
 

my gauge reads the same

Re: What should EGT temps be at?
 

??? My autometer gauge mounted in the same place reads around 1390 when cruising on the highway, sometimes 1400. Should I be worried? I thought it was a bit high. My afr is 14.7 and my timing is stock.

Re: What should EGT temps be at?
 

Re: What should EGT temps be at?
 

Typically 1350 deg F @ cruise, 800 deg F idle

At WOT you can take your pick of "1450 deg F maximum" and "irrelevant." Temperature is subject to change for other makes and marques, but irrelevant is not...

I've seen "safe" spikes of 1750 deg because we were running too rich and the unburnt fuel in the exhaust decided to afterburn in the manifold. Since chamber temps were still controlled - worthless EGT reading.

Best bet is to log all cylinders, or none. Westach makes a pimpy 4 probe 1 gauge setup for this. Cheap.

What you look for is, for example, on the first pull #2 is a little cooler than all the others. On the second pull, all probe temps come up a touch but now #2 is the same temp as everything else. Problem: #2 is taking on more temperature than the rest of the cylinders, and can potentially overheat - time to figure out what is the problem. If you're logging any one cylinder you don't know ---- about the big picture.

Also, individual cylinder EGTs are a nifty way to deduce how to port/design an intake manifold. This is as important as a good turbo manifold when you want to make 1.9 million horsepower safely. Balanced flow + heat through the cylinders, since the WBO2 only reads the average of the four cyls, and one can be TOO lean but the combined reading is safe because the other three cyls are running rich enough to lose the one cyl's leanness.

Re: What should EGT temps be at?
 

Holy ----, look who just walked in. Long time no see. Couldnt stay away from the 'power tool frat house' ehh?

Re: What should EGT temps be at?
 

I float around the interweb looking for emotional satisfaction. After several suggestions that I seek professional help, here I am. YOU GOT TO LOVE ME!

Re: What should EGT temps be at?
 

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

Re: What should EGT temps be at?
 

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.

Re: What should EGT temps be at?
 

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

Re: What should EGT temps be at?
 

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?

Re: What should EGT temps be at?
 

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

Re: What should EGT temps be at?
 

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

Re: What should EGT temps be at?
 

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

Re: What should EGT temps be at?
 

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 ;)

Re: What should EGT temps be at?
 

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.

Re: What should EGT temps be at?
 

Also a pain in my ass 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! O0 haha!

Re: What should EGT temps be at?
 

so is it worth it to take EVERYTHING back off to drill thru my manifold?

Re: What should EGT temps be at?
 

if you want a more accurate egt reading yes :-\

Re: What should EGT temps be at?
 

What is the bases for safe EGT's i've heard 1.5-6k is getting pretty dangerous?
I happen to be running right around that area at WOT with a sohc, probe is on #3 about 2inches off the runner running 10psi, 11.8-12afrs and about 17deg. timing. Any input fellas? planned on going to bug juice here soon.

Re: What should EGT temps be at?
 

you couldnt start your own thread ? :1

Re: What should EGT temps be at?
 

i have mine in the same spot about 1 inch from the outlet i run 600 when idle anywhere between 8-1000 cruzing unless im doing 80-90 ish its like 11-12k on full boost pulls 20 psi for a good half minute or so i peak at 1300 never beat that my afr is 10.5 over 15 psi

Re: What should EGT temps be at?
 

6k is probably a little hot, but 1.5k at WOT is fine.