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my car is proof...... (archive)

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Posted by m3niko on April 28, 2000 at 22:20:54:

In Reply to: theory Vs. real world posted by steve m on April 28, 2000 at 14:34:24:


My car is proof that what Jim says is correct. I'm the one he helped. My car is running head and shoulders better than the original chip I started with. I had somebody else drive the car also (with both chips to compare), and the difference, according to them, was amazing.

In my experience (as somebody with an MSEE degree and 20+ years around cars), the computer guys understand how the DME works, as well as how the mechanicals of a car work. But the mechanical guys can't understand how the computer stuff work. The mechanical guys always think they're 'smarter' than the computer and can fool it. But it just isn't so. (I know that seems like a blanket statement, but it's just my opinion and experience.)

BTW, I've also been told the same thing of how Jim's OBDII programming reverted back to stock, most likely from the same person who told you. IMO, that's 101% hogwash. That's from somebody who understands how the DME works (me), and not some mechanical engineer (I'm not targeting all ME's here ;) that doesn't understand the DME and *thinks* he's smarter than it.

'95 M3 AA Stage 1 (with self tuned chip)

: Jim,

: I see a bunch of theoretical arguments. However I would like to know how you can argue dyno results etc? I have been witness to a certain circumstance in which an individual purchased your OBDII program and witnessed a decent and immediate increase on the dyno. After several weeks the power increase had dropped considerably.

: Now, a few instances in which the power has decreased can be explained away as probability or varied conditions etc.
: But, If these conditions provide variations in measured HP then there would be positive and negative variance by similar % in the dyno results.
: I have never heard of such a result. Have you?

: We can not assume that this "power loss" is a regular and certain phenomenon b/c we do not have a representative test group of the BMW population. However we can suggest a correlation or trend such that OBDII cars lessen in RWHP weeks after flashing OBDII.

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