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burt ragio
06-09-2016, 10:21 AM
Can I make a correction with my SCT Xcalibrator II. My speedometer is wrong due to gear change from 3:55 to 4:10s. I do not want to use the custom tune the Xcal came with. If so how do I do this ?
tbone
06-09-2016, 11:22 AM
Change the tire revs per minute number. Get a Garmin and experiment until you get it to match the car and GPS speedometer.

If you are trying to change the stock tune, I don't think this is possible because you don't have access to it.
VMARAUDER
06-09-2016, 01:12 PM
Should be able to find the rpm on the internet
junior
06-09-2016, 01:22 PM
Seems like the easiest way is to ask one of the vendors here to send you a tune with the correct gear ratio. And if your car has a stock tune you will hit yourself over the head for not getting the shift schedule modified.
ctrlraven
06-09-2016, 01:34 PM
Changing the revs per mile will not allow you to benefit fully from the 4.10 swap. The trans shift schedule and torque converter lockup schedule are also adjusted with a 4.10 tune.

Talk to whoever your current tune is from, if you're currently stock then better talk to MO!
Zack
06-09-2016, 01:51 PM
Changing the revs per mile will not allow you to benefit fully from the 4.10 swap. The trans shift schedule and torque converter lockup schedule are also adjusted with a 4.10 tune.

Talk to whoever your current tune is from, if you're currently stock then better talk to MO!

Not necessary
cat in the hat
06-09-2016, 03:01 PM
Not necessary

No ?
burt ragio
06-10-2016, 09:20 AM
I do like my custom 4:10 tune. The concern is it turns the fans on less than five mins into normal driving. If I back the custom tune out the fans don't come on unless I have ac on & it's a real hot day. How do I alter the custom tune. There are no option for this I am aware of under options in sct tuner.
bugsyc
06-11-2016, 07:53 AM
Does installing the tune on my xcal3 to a rebuilt pcm count as programming it??
martyo
06-11-2016, 07:11 PM
Does installing the tune on my xcal3 to a rebuilt pcm count as programming it??

Your Xcal probably is still married to your old PCM so it's not likely to work.
Turbov6Bryan
06-12-2016, 07:10 PM
Does installing the tune on my xcal3 to a rebuilt pcm count as programming it??

No

You need the KEY to start that PCM, I know you know this

Delete PATS for that new PCM and see if it starts. This eliminates the key and dongle
martyo
06-12-2016, 07:13 PM
No

You need the KEY to start that PCM, I know you know this

Delete PATS for that new PCM and see if it starts. This eliminates the key and dongle

You lost me here.