3.73s and auto tranny question
07-26-2008, 07:58 PM
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3.73s and auto tranny question if i installed 3.73s wit my suto tranny, would it throw anything else off besides the speedometer? would it still shift normal?
07-28-2008, 12:38 PM
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wont the shift table need to be recalibrated for the different gears?
I saw a camaro once set up for 3.42's and had 3.23's in it. had problems hitting the rev limiter between shifts.
I saw a camaro once set up for 3.42's and had 3.23's in it. had problems hitting the rev limiter between shifts.
07-28-2008, 08:08 PM
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what needs to be changed is the spedo calibration, TCC tables, Part throttle shift tables, and full throttle shift tables. You can drive the car with no problems and it won't hurt anything though but It will not shift correctly at WOT, shift harder at part throttle and will put miles on the car faster than it should.
07-28-2008, 08:34 PM
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you can buy a used crappy hand held tuner cheap to calibrate for gears for now,
then just sell it later. I did that and sold it for what i paid for it after i got it tuned .
then just sell it later. I did that and sold it for what i paid for it after i got it tuned .
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07-28-2008, 09:01 PM
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what needs to be changed is the spedo calibration, TCC tables, Part throttle shift tables, and full throttle shift tables. You can drive the car with no problems and it won't hurt anything though but It will not shift correctly at WOT, shift harder at part throttle and will put miles on the car faster than it should.
07-28-2008, 09:31 PM
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And it will mess up your gas milage LOL! 3.23s are already bad enough for highway speeds For A4. im at over 2.2k at 75 mph.
M6 with 3.73s just laugh at rpms
M6 with 3.73s just laugh at rpms
07-28-2008, 09:41 PM
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2500 at 73 mph with 3.73s
1800 at 74 mph with M6 3.73s
http://www.f-body.org/gears/
07-28-2008, 11:29 PM
#12
2200 at 74 mph with 3.23s
2500 at 73 mph with 3.73s
1800 at 74 mph with M6 3.73s
http://www.f-body.org/gears/
2500 at 73 mph with 3.73s
1800 at 74 mph with M6 3.73s
http://www.f-body.org/gears/
07-28-2008, 11:57 PM
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Yes it will.. because the pcm will think the car has a 3.23 or 2.73 or whatever gear but in reality you will have a 3.73. that difference in the actual gear vs what the PCM thinks you have will cause the spedo to run faster than your actual speed and run the odometer faster. example... for every 100 actual miles you drive it will show as 110 miles.
07-29-2008, 12:01 AM
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Yes it will.. because the pcm will think the car has a 3.23 or 2.73 or whatever gear but in reality you will have a 3.73. that difference in the actual gear vs what the PCM thinks you have will cause the spedo to run faster than your actual speed and run the odometer faster. example... for every 100 actual miles you drive it will show as 110 miles.