Quote:
Originally posted by ACUDesperado
through research on this site, I've found the only thing the jetchip does for the tundra is to raise the shiftpoint a few rpm.
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I know nothing about JetChips, but in general the ECU tuning involves:
More timing advance, which means 91+ octane.
Tweaks to air/fuel part-throttle maps so adaptation has as little effect as possible on full throttle maps.
Tweaks to the full-throttle maps.
Adjustments to camshaft timing (VANOS, VTECH, etc.)
Redline changes.
My guess is that JetChip at least advances the timing. Using an OBD-II graphing tool you can measure the timing advance of a stock ecu and a JetChipped cpu if there is anyone in the East SF Bay Area who wants to offer their JetChipped truck up for testing.
Doug