I have an EGT gauge on my current car, and I won't be bothering with one on the next car. Even now that I changed my sensor to an open-element type, it's still far too slow to be of any use in indicating real-time conditions.
As a tuning aid, they used to be a poor-mans substitute for wideband EGO. Nowadays, they're pretty much useless.
Originally Posted by triple88a
Timing is confusing as hell to me since when adding fuel using the xede the stock ecu changes the timing in a certain way to compensate or something like that.
The Xede adjusts fuel by altering the airflow signal. Most of the time, it will be decreasing
the airflow signal, to compensate for the larger injectors.
At the stock ECU, less airflow = lower load = more timing advance. Thus, you don't have to worry about high EGT as a result of Xede's fuel manipulation. The system will come with a base tune that's perfectly safe to drive on, if not 100% optimized from a torque standpoint. Once you're at the dyno, you'll be tuning fuel for wideband targets, and then tuning spark for either peak torque or detonation. None of these things require EGT.
You don't say what year your car is. If you've got a '90-'94, your stock OPG is fine. If not, it's utter crap. There's no middle ground.
You don't need a hell of a lot of gauges. I installed oil temp just because I was curious. Found that no street-based driving condition yet encountered (including desert mountain runs) has exceeded the capacity of the stock '94+ oil cooler.
I want this gauge, just to be cool: http://www.turbobygarrett.com/turbob...ed_sensor.html