Gears and Tune Question...
07-31-2008, 04:28 PM
#1
3rd Gear Member
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Location: Georgia
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Gears and Tune Question...
Having 4.10's (yes!) installed soon on my 06 GT MANUAL...I know I will need my SCT tune re-written (currently VMP Tuning)to account for the gear swap.
QUESTION: On the manual isthe gear tunecritical right away? I know on the auto you can damage the tranny if you do not. I would think on the manual it just affects the speed sense and spedo. Is this right? I will be doing it but is it OK to drive briefly until re-flashed?
QUESTION: On the manual isthe gear tunecritical right away? I know on the auto you can damage the tranny if you do not. I would think on the manual it just affects the speed sense and spedo. Is this right? I will be doing it but is it OK to drive briefly until re-flashed?
07-31-2008, 04:35 PM
#2
2nd Gear Member
Join Date: Jun 2007
Posts: 368
RE: Gears and Tune Question...
You shouldn't have to get the tune re-written. There should be a user adjustable option in the SCT that allows you to change the gear ratio. Nothing else in the actual tune needs to be changed. Also, not updating the tune right away will not cause any issues. However, you will be putting extra miles on your car and your speedometer will show you going faster than you actually are by about 15%.
Dustin
Dustin
07-31-2008, 04:36 PM
#3
4th Gear Member
Join Date: Apr 2007
Location: Virginia
Posts: 1,118
RE: Gears and Tune Question...
thats correct, just effects the speedo. If you have the tuner with you all you need to do is change the axle ratio on the tune perimeters and reload the tune. There isn't any specific tuning other then that.
07-31-2008, 04:44 PM
#4
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RE: Gears and Tune Question...
ORIGINAL: d_ames117
You shouldn't have to get the tune re-written. There should be a user adjustable option in the SCT that allows you to change the gear ratio. Nothing else in the actual tune needs to be changed. Also, not updating the tune right away will not cause any issues. However, you will be putting extra miles on your car and your speedometer will show you going faster than you actually are by about 15%.
Dustin
You shouldn't have to get the tune re-written. There should be a user adjustable option in the SCT that allows you to change the gear ratio. Nothing else in the actual tune needs to be changed. Also, not updating the tune right away will not cause any issues. However, you will be putting extra miles on your car and your speedometer will show you going faster than you actually are by about 15%.
Dustin
Miles...don't really care. Just hit 121,000
07-31-2008, 05:00 PM
#5
2nd Gear Member
Join Date: Jun 2007
Posts: 368
RE: Gears and Tune Question...
Not sure about that one. My tunes from Brenspeed were preloaded on the SCT. You can try it though...plug in the tuner and see if it has user adjustable options. Should be the first thing it asks you after you pick the tune.
Dustin
Dustin
07-31-2008, 05:05 PM
#6
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Location: Virginia
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RE: Gears and Tune Question...
naw man you can change the parimetrs for any tune thats on your SCT. After you select the tune it will ask you if you want to change the parimetrs, select yes and go to the axle ratio and put in 4.10
07-31-2008, 05:09 PM
#7
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RE: Gears and Tune Question...
ORIGINAL: Brian_Zinchuk
naw man you can change the parimetrs for any tune thats on your SCT. After you select the tune it will ask you if you want to change the parimetrs, select yes and go to the axle ratio and put in 4.10
naw man you can change the parimetrs for any tune thats on your SCT. After you select the tune it will ask you if you want to change the parimetrs, select yes and go to the axle ratio and put in 4.10
07-31-2008, 05:14 PM
#8
4th Gear Member
Join Date: Apr 2007
Location: Virginia
Posts: 1,118
RE: Gears and Tune Question...
No problem brother. Hey you can also mess with other stuff like your rotations per mile if you put bigger wheels on and your idle and rpm limits. Just be careful around the air/fuel numbers and spark, you don't want to change those, let VMP figure that stuff out.
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