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Old 03-13-2005, 01:54 PM
TheV12pwr's Avatar
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What do you think???

Chip (set of two) upgrade for V12 for $160...on Ebay. Item#7960163722
Do you think is worth trying?

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Old 03-13-2005, 09:12 PM
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Quote:
Originally Posted by TheV12pwr
Chip (set of two) upgrade for V12 for $160...on Ebay. Item#7960163722
Do you think is worth trying?
These are auctioned by the same gentleman I bought my M119 chip from. At least for the M119 chips, the original tuning work is credited to an enthusiast group in Germany. I believe the seller merely burns their code to the eeprom as part of an exclusive reseller agreement.

There are primarily two goals in creating an aftermarket program for any vehicle: Improved driving experience (later shift points, improved idle quality, improved fuel economy) and performance gains (fuel enrichment tables, ignition advance).

I have been very pleased with results from the $100USD HPC M119 chip in both regards -- and that says a lot.

On any modern vehicle that has functional back seats, manufacturers tend to ship a conservative stock ECU program compared to potential performance. Why? Better fuel economy and a wide comfort margin for that factory warranty to live in. Can you imagine the financial impact of replacing most automatic transmissions for any given model if they shipped with aggressive shift parameters? The manufacturers want to pass that "burden" as far down the road from original purchase as possible - i.e. those of us who buy used cars.

So let's see what the HPC claims are:

* More responsive shifts (raised shift points)
* Removes top speed limiter
* Improved idle quality
* Better fuel enrichment in mid-range engine speeds
* More advance in low-range speeds

I have not field tested all of the claims (obviously), but the others stand up to scrutiny quite well. Even if it delivered only two of the five - smoother idle and raised shift points - I would consider my $100 well-spent.

Read through the comments and see if any other V12 owner has tried it. If nothing else, it may improve your perception of the car's responsiveness.

Good luck!
-DM
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Old 03-15-2005, 09:54 PM
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I'm not overly experienced in electronic engine management myself, but I understand the bee's knee's is custom chip mapping from a specialized dyno.
There's a handful of workshops out my way who do it, and it's especially good if you want your management system incorperating any and all other engine mods (induction piping, exhaust and most especially cam grinds, etc.).
They tune a custom chip to your individual car, the best way to do it and definitely worth the extra dollars from what it seems to me.
I didn't keep my EFI cars and am headed back to earlier mechanical, grunt and grease types, but I wouldn't have done it any other way if I had.

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