Easiest/cheapest pcm flash for axle ratio? - Chevy Impala SS Forum
 
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post #1 of 8 (permalink) Old 11-28-2012, 11:26 PM Thread Starter
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Easiest/cheapest pcm flash for axle ratio?

The threads and web sites I have seen so far offer elaborate pcm reflashes to effect engine tunes, transmission shifting, and other sophisticated parameters.

I just want to be able to alter the speedometer parameters to compensate for a changed axle ratio, and not anything else. Is there a cheap way to do just that?
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post #2 of 8 (permalink) Old 11-28-2012, 11:43 PM
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Quote:
Originally Posted by Rustbucket Ranger View Post
The threads and web sites I have seen so far offer elaborate pcm reflashes to effect engine tunes, transmission shifting, and other sophisticated parameters.

I just want to be able to alter the speedometer parameters to compensate for a changed axle ratio, and not anything else. Is there a cheap way to do just that?
I think the tuners all do just that for alot less than an "engine tune". The only other option is to collect the hardware and do it yourself or buy a Hypertech programmer and have a few other option other than just a gear or tire change adjustment.
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post #3 of 8 (permalink) Old 11-29-2012, 12:04 AM
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if it's a 94-95 you can send it to me, just pay the shipping I'll do it no charge!

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post #4 of 8 (permalink) Old 11-29-2012, 09:35 AM
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There also exist "stand-alone" devices that only change gear-ratios,along with tire height.
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post #5 of 8 (permalink) Old 11-29-2012, 10:41 AM Thread Starter
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XXL - mine is a 96, OBD II, which I guess complicates things.
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post #6 of 8 (permalink) Old 11-29-2012, 01:10 PM
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Quote:
Originally Posted by 4x4high View Post
I think the tuners all do just that for alot less than an "engine tune". The only other option is to collect the hardware and do it yourself or buy a Hypertech programmer and have a few other option other than just a gear or tire change adjustment.
Im interested in this also.

But I have 2 cars that need it done, both 96's
I don't like the hypertech idea, with it only being able to be used on one car.

1996 9c1 L99, now w/ LT1. 208k and counting.
1996 SS BBB
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post #7 of 8 (permalink) Old 11-29-2012, 01:22 PM
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Regardless the route you go,it will require one for each car.
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post #8 of 8 (permalink) Old 11-29-2012, 11:10 PM
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For 96 up OBDII the only program I know of is TunerCat OBDII (I have) which was then sold to Jet DST. For $499 you get 2 license for unlimited tunes of 2 cars. Old version had no license limits...
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