Quote:
Originally Posted by howard coleman
preturbo EGTs are extremely helpful for setting your timing curve. post turbo EGTs are a waste of time and effort.
EGTs need to be digital and logged. as an example i had been doing a number of dyno runs and focusing on 1550-1600 at one bar on up.
i looked at my 0 to one bar EGTs and found them to be in the 1200s.... even though my AFRs were fine.
we added timing in that area and brought the EGTs up to the high 1400s and picked up a bunch of midrange... all the while the AFRs did not change.
your really would never been able to do that watching a gauge... BTW, i have had some experience w Greddy EGT gauges (2) and found them to be slow acting and not accurate. i literally gave them away for shipping.
fixturing a proper EGT setup is neither difficult nor expensive but you do need a Power FC/Datalogit or something similar.
howard coleman
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Yeah Sean at A-Spec is putting a couple bungs in for me just after the exhaust flange, and your threads on the other forum is actually why I'm doing it haha. I never really thought about monitoring EGTs before, much less datalogging them. I have a PFC and datalogit at the moment, but I'm not real clear on everything needed to datalog. Is there some way I can hook that up through the datalogit? I'll read up on your thread again before I do the job. Thanks HC!
Quote:
Originally Posted by Phoenix7
I was looking at pineapple too but like Howard Coleman says for proper tuning you need to be able to log the pre-turbo temps. Also, Mazda claims that engine damage is likely with EGTs over 1500 degrees, can anyone confirm that?
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Uh oh, I hope that's not true.