I have a not so usefull narrow band a/f gauge, was just wondering what peoples opinions were on Exh Temp monitoring.
Is it any use ???
What i am getting at is, if it were to start going up, would it suggest leaning of the fuel and pending disaster.
Or
Could Exh temp rise with no detrimental effects to the engine?

Advice appreciated, from those that actually know something through experience

Dave

 

EGT.
Bin teh narrow band, almost pointless it being in the car, has no use whatsoever.

EGT getting hotter than NORMAL will indicate either retarded spark or leaned fuel.

Exceeding 850C flat out in 5th is a a pretty bad thing period, exceeding it in any other gear is normally an extremely bad thing period. lol

 

No car should ever have a narrow band gauge unless you want to check closed loop is working.

Its utterly useless for anything else!

 

Oh...
thought the narrow band might be going up for sale and a new purchase on the way.
STU, you say exceeding 850ish is bad. What would a typical operating temperature be for a stg 1 cos?

cheers
Dave