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jbrinkley jbrinkley is offline
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Join Date: Feb 2004
Location: louisiana
Posts: 1,481
ideally you really want to see runs in third or fourth gear up to what you want to shift at. You want from 2000 rpm to whatever your redline or what you feel comfortable with 5500- 6500- 7500
what you're talking about as lean, is after you let off, and the throttle closes. Eveyone sees the same high numbers at max vacuum. You want to see what happens from the pass through pressure to your full boost. Logging at low rpm's or while your shifting gears is just playing around with it.
logging on the freeway in fourth is best. This gives you enough time to look at a boost gauge, if you have a somewhat accurate one. Don't do this if you can't afford a ticket or a tow truck or bail money, or you can't find a deserted freeway.

looking at the log it looks like you shifted in first at 42-41 and let off in second at 32-33. Sorta like you're not even driving and surely you're not at full boost at 3200rpm (maybe you are in second gear, don't really know)
I'd get some books like the bosch mortonic/cis manual
that C. Bell turbo book and maybe "how to tune and modify engine management systems"
There's some EFi books out there worth reading also.

This is the point where if you really want to know you car and get seriously involved with it, it starts to get obsessive.
inovate has great forums to get more info here

before you know it you'll want to graph boost, fuel pressure and in/out temps. And the list goes on as the wallet gets lighter.
Old 03-31-2007, 01:56 PM
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