Quote:
Originally Posted by E30M3Driver
......To your second point, this is the critical question. Tunes like SSTT are certainly not additive to the stock system-it can only adjust within the range of what the stock system is capable of to a max of about 11.5psi and it uses the stock ecu to do it. Since the JB2 performs similarly, I would guess it works similarly.
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i do not know about procede, or sst, but
the Juice box tunes do keep the altitude correction factor intact - i am certain of this fact. as terry (juice box owner) explained it to me, stock psi = 8.5psi, Max altitude correction = 3 psi. total both and you get 11.5psi at high altitude from the stock ecu. the juice box then adds psi on top of that.
if you are at altitude and use a juice box, depending on the juice box tune, it adds another X psi to the 11.5psi the ecu gives u at altitude.
if you are at altitude, and want more info, may i suggest you starting a high altitude thread. i say this because i wish i had alot of info re altitude in one thread when i started my study of this subject a few months ago.
cheers