Shift Points For A/4
Thread Starter
Drifting
Joined: Jan 2005
Posts: 1,556
Likes: 276
From: Marshall Texas
Shift Points For A/4
Changed from 2.73 to 3.42.I need to know where to set 1-2,2-3,3-4, shift points without getting into the fuel cutoff.(6000RPM) The car has stock sized tires.My tuner is using the LS-1 Edit. 
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
on my Predator, it asks for MPH figures for WOT shifts.
I found mine by placing the A4 in "1" and taking the car up to redline - then noting the MPH
Then did the same, 'cept with the tranny in "2"; again noting the MPH at redline. (I wasn't brave enough to to that in "3" )
then I enterd in the WOT shifts 2 mph below the noted readings.
I found mine by placing the A4 in "1" and taking the car up to redline - then noting the MPH
Then did the same, 'cept with the tranny in "2"; again noting the MPH at redline. (I wasn't brave enough to to that in "3"
)then I enterd in the WOT shifts 2 mph below the noted readings.
Instructor
Joined: Oct 2005
Posts: 151
Likes: 0
From: Philadelphia PA
I was thinking of replacing my 2.73's with 3.42's. Will the speedo have to be recalibrated as well as the shift points? Is the difference in performance really noticable? I assume it must be. What would I expect to pay for 3.42 gears? Can just the gears be changed or do I need a new differential?
I am a new C5 owner and just getting up to speed on performance mods. So far the car is stock. It is an 04' convertible.
thanks,
Mike
I am a new C5 owner and just getting up to speed on performance mods. So far the car is stock. It is an 04' convertible.
thanks,
Mike
Melting Slicks
Joined: Jun 2005
Posts: 3,088
Likes: 61
From: NY- 2013 Corvette Challenge Champion-2013 Index Combo Champion 2015 CC/MM Champion
St. Jude Donor '07
Originally Posted by mperl93
I was thinking of replacing my 2.73's with 3.42's. Will the speedo have to be recalibrated as well as the shift points? Is the difference in performance really noticable? I assume it must be. What would I expect to pay for 3.42 gears? Can just the gears be changed or do I need a new differential?
I am a new C5 owner and just getting up to speed on performance mods. So far the car is stock. It is an 04' convertible.
thanks,
Mike
I am a new C5 owner and just getting up to speed on performance mods. So far the car is stock. It is an 04' convertible.
thanks,
Mike
.A shop did mine,it was $2300.(From 2.73 to 3.42's & TC) But I changed again to 3.73,s and did it myself $1500.I'm assuming you have an auto.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Originally Posted by mperl93
I was thinking of replacing my 2.73's with 3.42's. Will the speedo have to be recalibrated as well as the shift points? Is the difference in performance really noticable? I assume it must be. What would I expect to pay for 3.42 gears? Can just the gears be changed or do I need a new differential?
I am a new C5 owner and just getting up to speed on performance mods. So far the car is stock. It is an 04' convertible.
thanks,
Mike
I am a new C5 owner and just getting up to speed on performance mods. So far the car is stock. It is an 04' convertible.
thanks,
Mike
8th Gear
Joined: Mar 2004
Posts: 8
Likes: 0
From: GRAND RAPIDS MI
Shift points
Originally Posted by Mike Mercury
I have sort of a related question for you. I recently changed from my stock 2.73 gears to 3.42. I used a Predator to chage the ratios but when I went to change the MPH upshifts, downshift to match the ones specified in the manual for 3.42 everything went fine until I reached the setting for 3-4 upshift and down. The scale was set at 150mph and I couldn't move it down to the recommended 130 for upshift or 118 for downshift 118. Did you have this problem or is there a problem with my Predator?
Thanks,
Jim
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
gears
Had Andy at A&A do mine. Went from 3.15s to 3:42s. If you do any highway driving don't go below 3:42s. New diff was $1200 and labor was around $500. I would highly recommend you get a tune with it as they will set the computor up for the new gears and tweak the time of shifts and pressure at the same time. If you are thinking of a hi-stall convertor in the future, do it at the same time and save $500 on labor.
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Burning Brakes
Joined: Nov 2004
Posts: 1,028
Likes: 0
From: Fort Worth Texas
Originally Posted by JIMI156
Mike,
I have sort of a related question for you. I recently changed from my stock 2.73 gears to 3.42. I used a Predator to chage the ratios but when I went to change the MPH upshifts, downshift to match the ones specified in the manual for 3.42 everything went fine until I reached the setting for 3-4 upshift and down. The scale was set at 150mph and I couldn't move it down to the recommended 130 for upshift or 118 for downshift 118. Did you have this problem or is there a problem with my Predator?
Thanks,
Jim
I have sort of a related question for you. I recently changed from my stock 2.73 gears to 3.42. I used a Predator to chage the ratios but when I went to change the MPH upshifts, downshift to match the ones specified in the manual for 3.42 everything went fine until I reached the setting for 3-4 upshift and down. The scale was set at 150mph and I couldn't move it down to the recommended 130 for upshift or 118 for downshift 118. Did you have this problem or is there a problem with my Predator?
Thanks,
Jim
