CM871 Engine cycle...

[Rawze]

(10-05-2017 )hepy Wrote:  Hay is that cm871 a isx400st if so are you saying the 30psi is a good set for that engine because mines is set 22 psi 23 somewhere around there and I want to take it up some

A CM871 should peak around 34-36 psi boost peak at 400 HP. 30 and below is TOO LOW and EGT's will be too high for the power you are making. It sounds like you have some bad programming and/or some things wrong with that engine.

I don't know about anyone else, but I can't afford to "take guesses" and "gamble" and piss around while my engine destroys itself because of uncertianty.---

KNOW WHAT YOU HAVE -- WITHOUT QUESTION -- YOUR BUSINESS AND INCOME AND POSSIBLY YOUR LIFE DEPEND ON IT!!!

And if your that unsure,.. take it to Gearhead, Mr. Hag, or Unilevers and HAVE IT FIXED RIGHT!!!