why should I need to know how hot the exhoust is?

Why/how does exhoust gas temperature affect a turbo?

-Rafael

 

Your exhaust temps are important because it tells you if you are about to melt a piston or something, especially if you like to stay under boost for a long time like on the expressway or something. If the EGT goes too high, by by engine. Also, if your timing is too retarded your EGTs will go up high, so it's good to have to tune your timing. That's all I got for now.

 

Lean = hot gas

rich = not as hot gas

 

How would you relate the A/F gauge to an EGT gauge (I guess in order of importance)?

I thought both could be used for tuning, but is one better to have than the other?

 

Lame narrowband AF = disco fabulous light show
EGT = useful information

is that good enough

 

did you meant the more advance the hotter it gets? and what if you are in heavy traffic jam on the freeway in the 4th lane, what do you do?

 

Well, in both directions, An overly advanced ignition results in overly high pressures and temperatures, an overly retarded ignition results in unfinished combustion, bad fuel economy and high exhaust temps (the burn is completed in the exhaust manifold)
Rally cars use this when they shift, to keep the turbo spooled, there it's called anti-lag and it EATS turbos.

 

yo d16z64life your avatar is ------- pimp.