Gear swap and speedometer change - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BFASTNOTLAST · 12-09-2012, 12:50 PM

So, after reading all the different thoeries that are posted on this site and none that I can find a definitive answer on here is my question. Will adding 3.91 to my LS3 set off any CEL or stabilitrack lights without a re-calibration to the speedo?

Next question is there a cheap way to re-cal the speedo without a tune? In other words I dont want to spend the $$ on a tune just for the gear calibration. This is the only mod so far.

I'm ok for now with the speedo reading faster than the car is going, I just don't want my dash lit up like a x-mas tree.

Thanks guys.

Jmar · 12-09-2012, 01:25 PM

Won't your odometer also show more mileage than you're actually accumulating?

bada450r · 12-09-2012, 01:34 PM

Quote:

Originally Posted by BFASTNOTLAST

So, after reading all the different thoeries that are posted on this site and none that I can find a definitive answer on here is my question. Will adding 3.91 to my LS3 set off any CEL or stabilitrack lights without a re-calibration to the speedo?

Next question is there a cheap way to re-cal the speedo without a tune? In other words I dont want to spend the $$ on a tune just for the gear calibration. This is the only mod so far.

I'm ok for now with the speedo reading faster than the car is going, I just don't want my dash lit up like a x-mas tree.

Thanks guys.

i was looking for the same answer, at the end i end it up with a tune. if your gear install in done properly cel lights will not happen. i think some sensors need to be disconnected before the rear end is taken apart.

SSOOCH · 12-09-2012, 01:38 PM

You will need to recalibrate it with something like HP Tuners. There is no way around this.

If you're doing something like a gear change why not just tune the car?

It's a Chevy! You don't need a warranty!!

blazzin1 · 12-09-2012, 01:50 PM

The gear change itself, if done properly, will NOT set off any CEL or Stabilitrak lights. It will however cause your speedometer to be inaccurate, and your odometer will accumulate more mileage than what you're really putting on the car. The ONLY fix is to have it tuned. Depending on where you go to have it done, if you only want the items calibrated to fix your speedometer and odometer, you probably won't have to pay as much as if you were getting a "performance" tune. But.....you're in there anyway....you might as well do it all.....because either way it is most likely going to void your entire powertrain warranty. Talk to your dealership about it, some are more mod-friendly than others. But in most cases, any alteration to the stock computer settings is an automatic void of the warranty.....just so you know.

Matt @ FSP · 12-09-2012, 05:15 PM

Quote:

Originally Posted by BFASTNOTLAST

So, after reading all the different thoeries that are posted on this site and none that I can find a definitive answer on here is my question. Will adding 3.91 to my LS3 set off any CEL or stabilitrack lights without a re-calibration to the speedo?

Next question is there a cheap way to re-cal the speedo without a tune? In other words I dont want to spend the $$ on a tune just for the gear calibration. This is the only mod so far.

I'm ok for now with the speedo reading faster than the car is going, I just don't want my dash lit up like a x-mas tree.

Thanks guys.

Depending on your areas, most tuners will do a "speedo recalibrate" for $50-75 or so... However, as everyone else suggested a nice flash tune or custom street tune will suit you well also

NC-V · 12-09-2012, 09:00 PM

It would take under 10 min. to read your stock tune and change your ratio for proper speedo calibration. But, the price may depend on where you go, what tuning system they use and if licensing fees are involved. Higher volume shops will most likely have purchased licensing for unlimited vehicles and may be able to get you hooked up for cheaper than a low volume shop that may have to single license (HP tuners as example) your vehicle, which by itself costs ~$100.

blue-bayou · 12-09-2012, 10:10 PM

Look into Dakota Digital. They may have a plug in that might work.

blue-bayou · 12-09-2012, 10:14 PM

http://www.dakotadigital.com/index.c...126/prd126.htm

BFASTNOTLAST · 12-10-2012, 06:17 AM

Thanks for all the usefull info guys!

12-09-2012, 12:50 PM	#1
BFASTNOTLAST Drives: 2012 SS LS3 Join Date: Mar 2012 Location: Denver NC Posts: 1,411 View My Garage	Gear swap and speedometer change So, after reading all the different thoeries that are posted on this site and none that I can find a definitive answer on here is my question. Will adding 3.91 to my LS3 set off any CEL or stabilitrack lights without a re-calibration to the speedo? Next question is there a cheap way to re-cal the speedo without a tune? In other words I dont want to spend the $$ on a tune just for the gear calibration. This is the only mod so far. I'm ok for now with the speedo reading faster than the car is going, I just don't want my dash lit up like a x-mas tree. Thanks guys.

12-09-2012, 01:38 PM	#4
SSOOCH Camaro SL,UTs Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006 Location: South Jordan, UT Posts: 7,357 View My Garage	You will need to recalibrate it with something like HP Tuners. There is no way around this. If you're doing something like a gear change why not just tune the car? It's a Chevy! You don't need a warranty!! __________________

12-09-2012, 10:10 PM	#8
blue-bayou Drives: 2010 IBM SS/RS/Stick Join Date: Jul 2010 Location: The Holler Posts: 235	Look into Dakota Digital. They may have a plug in that might work. __________________

12-09-2012, 10:14 PM	#9
blue-bayou Drives: 2010 IBM SS/RS/Stick Join Date: Jul 2010 Location: The Holler Posts: 235	http://www.dakotadigital.com/index.c...126/prd126.htm __________________

12-09-2012, 01:25 PM	#2
Jmar Drives: 2012 LS3 CRM, V8 Healey, Mini Join Date: Jun 2012 Location: MI Posts: 103	Won't your odometer also show more mileage than you're actually accumulating?

12-09-2012, 01:50 PM	#5
blazzin1 Drives: 2010 2SS/RS R6P Join Date: Nov 2008 Location: St. Cloud, FL Posts: 4,845 View My Garage	The gear change itself, if done properly, will NOT set off any CEL or Stabilitrak lights. It will however cause your speedometer to be inaccurate, and your odometer will accumulate more mileage than what you're really putting on the car. The ONLY fix is to have it tuned. Depending on where you go to have it done, if you only want the items calibrated to fix your speedometer and odometer, you probably won't have to pay as much as if you were getting a "performance" tune. But.....you're in there anyway....you might as well do it all.....because either way it is most likely going to void your entire powertrain warranty. Talk to your dealership about it, some are more mod-friendly than others. But in most cases, any alteration to the stock computer settings is an automatic void of the warranty.....just so you know.

12-09-2012, 09:00 PM	#7
NC-V Drives: cts-v Join Date: Dec 2011 Location: Mooresville, NC Posts: 506	It would take under 10 min. to read your stock tune and change your ratio for proper speedo calibration. But, the price may depend on where you go, what tuning system they use and if licensing fees are involved. Higher volume shops will most likely have purchased licensing for unlimited vehicles and may be able to get you hooked up for cheaper than a low volume shop that may have to single license (HP tuners as example) your vehicle, which by itself costs ~$100.

12-10-2012, 06:17 AM	#10
BFASTNOTLAST Drives: 2012 SS LS3 Join Date: Mar 2012 Location: Denver NC Posts: 1,411 View My Garage	Thanks for all the usefull info guys!