EGT readings

[Bart Baldwin]

What is a good EGT reading under boost? My 86 GN came with a Autometer EGT gauge. I installed new 60lb inj., 255 pump and a Turbo Tweak chip. At the preset tune it would run under 1000f (full throttle). It seemed a little doggy. I cut the fuel back about 1.8% and added 1.1 deg. of timing. It now reads about 1250f under full throttle ans 17-18lb boost. It runs considerably better.

 

[aminga]

I see 1000-1100 at cruise. > 1500 under boost

 

[Bart Baldwin]

So, I guessing that I'm not to hot then.

 

[aminga]

Sounds rich to me.

 

[Bart Baldwin]

Well I'll cut the fuel back some more and see.

 

[pacecarta]

the sensor should be just before the turbo in the passenger header
when i kept a close eye on egts (before WB) i would run 1575 on a safe tune ,
my advice run wb and find where yours has most power and see where the egt is as egt will vary with turbo and exhaust restriction , what works for someone else may not be good for you

 

[Bart Baldwin]

OK, thanks for the advise. The sensor is in the passenger side manifold right before the turbo.

 

[tford]

When ATR was in business, they told me 1450-1550 is the range you want to be in.

 

[aminga]

the sensor should be just before the turbo in the passenger header
when i kept a close eye on egts (before WB) i would run 1575 on a safe tune ,
my advice run wb and find where yours has most power and see where the egt is as egt will vary with turbo and exhaust restriction , what works for someone else may not be good for you

Also timing.

 

[SHADOWII]

I would run mine between 1575 and 1625. The 1625 was too lean for others, but for me it would make mine run like a scalded cat! I was running it at 1640 until some of the guys were losing h/g's at 1585-1605 and I decided to roll it back.
A w/b will help eliminate guessing and help get you into the sweet spot for your combo. It would save a lot of work.