Page 1 of 1
Jeep GC- Tire Size Adjustment Works!
Posted: Fri May 27, 2011 1:53 pm
by airportdave
Just loaded 9r12, and pleased to find that the tire size adjustment works great on my 2010 GC limited- thanks for finally getting this worked out.
RE: Jeep GC- Tire Size Adjustment Works!
Posted: Fri May 27, 2011 1:58 pm
by mikel
Glad to hear it, enjoy.
RE: Jeep GC- Tire Size Adjustment Works!
Posted: Fri May 27, 2011 8:40 pm
by airportdave
Mike- one question with the 9R12. I really like the power of the 91 octane tune, but the upshifts, especially the 1-2, have a noticeable lag between gears that wasn't present in the earlier tunes. It's as if the throttle or torgue management are being dialed back too much during the shifts. If I post up my tune can you fix that?
RE: Jeep GC- Tire Size Adjustment Works!
Posted: Sat May 28, 2011 1:06 pm
by j33p
REALLY?! I have to go try it now...
RE: Jeep GC- Tire Size Adjustment Works!
Posted: Sat May 28, 2011 9:09 pm
by j33p
Sweet, it works on my 2010 WK as well. THANK YOU DS!
I am interested to see how the added MPG BOOST Tune works as well. I am wondering if an 89 Perf Tune would ever be done? Most people that I have read posts on use the 87 Perf Tune with 89 and get good results.
RE: Jeep GC- Tire Size Adjustment Works!
Posted: Sun May 29, 2011 9:15 pm
by j33p
I set the tire size to 265/70R17 and it was off in relation to the speedo and handheld GPS. I set it to 30.5 as the tire diameter and 100km/h now shows 100km/h.
RE: Jeep GC- Tire Size Adjustment Works!
Posted: Mon May 30, 2011 11:36 am
by WKgrand08
Bingo! 31.5" worked. Waiting over a year makes this day all the sweeter.
Re: RE: Jeep GC- Tire Size Adjustment Works!
Posted: Mon May 30, 2011 9:12 pm
by j33p
WKgrand08 wrote:Bingo! 31.5" worked. Waiting over a year makes this day all the sweeter.
I couldn't agree more. I have been trying to find all the posts I have seen in other forums of people staying away from the product because it didn't work.
Maybe sales will increase

At least the complaint file should be a little lighter
RE: Re: RE: Jeep GC- Tire Size Adjustment Works!
Posted: Sun Jul 31, 2011 12:31 am
by 08Hemi3542
DOES THIS REALLY WORK? what is the update I need as I cannot find the update for my Trinity...pleas help me!!!!! Been waiting well over a year now

RE: Re: RE: Jeep GC- Tire Size Adjustment Works!
Posted: Sun Jul 31, 2011 3:06 pm
by mikel
The latest dcx gas update for trinity has these fixes.
RE: Re: RE: Jeep GC- Tire Size Adjustment Works!
Posted: Sun Jul 31, 2011 7:48 pm
by WKgrand08
Measure your tire with a tape measure to get actual inches. Every brand tire differs in measurement. Just because it says 265/70R17 doesn't mean it is a true 31.6". Mine came out to be 31" new, so this is the measurement that worked for calibrating my speedometer, not the metric size listed on the tire. Hope that helps you in the future.
RE: Re: RE: Jeep GC- Tire Size Adjustment Works!
Posted: Sun Jul 31, 2011 9:42 pm
by 08Hemi3542
well I updated my trinity with the dcx gas update, and already had the most recent u7137 update...and still NO DICE! I tried with the full tune install, and the quick adjustment...both time I press apply it says "unable to update tire size"
Please HELP!!!!!!!!