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I have a 2012 Corvette Grand Sport with the A6. I had multiple Corvettes and this is my 1st Automatic. I am looking for a tune to make Transmission shift more crisp, may be adjust shift points in S mode. I would like to get the chirp tires similar to shift kit installed on older cars. Also was thinking of turning off TM.
Will the Diablo tuner do this or do I need a custom tune? Also, If I have a custom tune, would I still be able to modify some parameters on my own ?
The Diablo tuner does offer some options for a trans tune, torque management and shift firmness are the main ones. Not sure what else you can change but it is a huge improvement over stock. I did get a new trans tune file when I did a custom tune so there must be some other parameters that you can change. Its well worth getting a custom tune from DiabLew if you decide to do with the Diablo.
The Diablo tuner does offer some options for a trans tune, torque management and shift firmness are the main ones. Not sure what else you can change but it is a huge improvement over stock. I did get a new trans tune file when I did a custom tune so there must be some other parameters that you can change. Its well worth getting a custom tune from DiabLew if you decide to do with the Diablo.
Out of pure curiosity, I purchased a basic package from Diablew (Lew Easton) and earlier today, completed the 1st phase of a Diablo i3 custom tune (ECM and TCM) for my '07 LS2 A6 Vert. While the stock Diablo tune was noticeably better than OEM in terms of enhanced throttle response and better (IMO) shift points (chose "Firm), the custom tune from Diablew feels even better, most noticeably to me, added some smoothness during the enhanced acceleration and slightly "crisper" shift points for my A6. While not "measured" on a dyno, it sure "feels" like a bit more HP and torque. Maybe some day I'll get some pulls done and see what the output is (now), but frankly, it's not that important to me. I'm not doing 1/4 miles or accepting challenges from a 17 year old in a turbo rice mobile (or the occasional minivan). Now obviously I'm not trying to compare this to someone paying a lot more coin for a dyno-custom tune, but for the price-point and about a total of 1 hour of my time, I'm satisfied and I still have to do the next step of the WOT log after I put on about 150 miles and then we'll see what happens. YMMV.
Edit: About a week later.... just completed the WOT log. That was FUN!!
Out of pure curiosity, I purchased a basic package from Diablew (Lew Easton) and earlier today, completed the 1st phase of a Diablo i3 custom tune (ECM and TCM) for my '07 LS2 A6 Vert. While the stock Diablo tune was noticeably better than OEM in terms of enhanced throttle response and better (IMO) shift points (chose "Firm), the custom tune from Diablew is feels even better, most noticeably to me, added some smoothness during the enhanced acceleration and slightly "crisper" shift points for my A6. While not "measured" on a dyno, it sure "feels" like a bit more HP and torque. Maybe some day I'll get some pulls done and see what the output is (now), but frankly, it's not that important to me. I'm not doing 1/4 miles or accepting challenges from a 17 year old in a turbo rice mobile (or the occasional minivan). Now obviously I'm not trying to compare this to someone paying a lot more coin for a dyno-custom tune, but for the price-point and about a total of 1 hour of my time, I'm satisfied and I still have to do the next step of the WOT log after I put on about 150 miles and then we'll see what happens. YMMV.
I am looking to have more firm shifts with the A6. I ordered the Diablo Sport in tune 3. Waiting for it to be delivered.
Out of pure curiosity, I purchased a basic package from Diablew (Lew Easton) and earlier today, completed the 1st phase of a Diablo i3 custom tune (ECM and TCM) for my '07 LS2 A6 Vert. While the stock Diablo tune was noticeably better than OEM in terms of enhanced throttle response and better (IMO) shift points (chose "Firm), the custom tune from Diablew is feels even better, most noticeably to me, added some smoothness during the enhanced acceleration and slightly "crisper" shift points for my A6. While not "measured" on a dyno, it sure "feels" like a bit more HP and torque. Maybe some day I'll get some pulls done and see what the output is (now), but frankly, it's not that important to me. I'm not doing 1/4 miles or accepting challenges from a 17 year old in a turbo rice mobile (or the occasional minivan). Now obviously I'm not trying to compare this to someone paying a lot more coin for a dyno-custom tune, but for the price-point and about a total of 1 hour of my time, I'm satisfied and I still have to do the next step of the WOT log after I put on about 150 miles and then we'll see what happens. YMMV.
You will be pleasantly surprised after the second tune. 3rd gear with the A6 is where it really shines, especially because 3rd gear tops out around 120. Have fun!
Got my Intune 3. Just started playing around with it, tried the 91 Tune and set trans firmness. Took for a quick ride. Seems to be a good improvement over stock, time will tell.
Diablo Sport Intune3
Anyone know what shift RPM is for, is this a shift rpm limiter?
How about firm / hard shift compared to increasing shift pressures?
Diablo Sport Intune3
Anyone know what shift RPM is for, is this a shift rpm limiter?
How about firm / hard shift compared to increasing shift pressures?
Shift rpm is for WOT shifting.. raising the WOT shift rpm higher...
Firm Shift has a little more shift pressure than stock... Hard Shift has more shift pressure then Firm Shift... If you install one of those and then you adjust the shift pressure settings yourself, you are adding more pressure on top of the higher shift pressure settings that are in there already...
Shift rpm is for WOT shifting.. raising the WOT shift rpm higher...
Firm Shift has a little more shift pressure than stock... Hard Shift has more shift pressure then Firm Shift... If you install one of those and then you adjust the shift pressure settings yourself, you are adding more pressure on top of the higher shift pressure settings that are in there already...
Ok,
Thanks. Probably not good idea to adjust shift pressures then.
Do you know a way to make Corvette shift points at a higher rpm in D or S mode without using paddle shifters?
Ok,
Thanks. Probably not good idea to adjust shift pressures then.
Do you know a way to make Corvette shift points at a higher rpm in D or S mode without using paddle shifters?
Thanks
you can't do the shift points in normal part-throttle driving with the tool itself... you'd need a custom tune done... and the normal part-throttle driving shift points go by mph...
Last edited by 06MonteSS; Aug 17, 2021 at 01:34 PM.
you can't do the shift points in normal part-throttle driving with the tool itself... you'd need a custom tune done... and the normal part-throttle driving shift points go by mph...
Do the tunes shorten transmission life? The higher pressures or firmer shifts, do anything to the longevity of the 6L80e?
Shift pressure will generally extend the life of the transmission.
Sloppy stock shifts feel that way because it slips out of and into the next gear to make things cushy for grandma.
Adding some line pressure allows the gears to engage more firmly with less slippage.
Slippage creates heat.
Heat is the number 1 enemy of any automatic transmission.
Reduce slippage, you reduce heat build up, and your trans is better off as a result.
Shift pressure will generally extend the life of the transmission.
Sloppy stock shifts feel that way because it slips out of and into the next gear to make things cushy for grandma.
Adding some line pressure allows the gears to engage more firmly with less slippage.
Slippage creates heat.
Heat is the number 1 enemy of any automatic transmission.
Reduce slippage, you reduce heat build up, and your trans is better off as a result.
Great thread!
Thanks
I definitely agree with this and have seen slightly lower trans temps after my tune in similar driving and outside temp situations. Also loving the 2-3 mpg increase I picked up cruising on the highway. I average 28-30 mpg when I can keep it around 70-75 mph.
Shift pressure will generally extend the life of the transmission.
Sloppy stock shifts feel that way because it slips out of and into the next gear to make things cushy for grandma.
Adding some line pressure allows the gears to engage more firmly with less slippage.
Slippage creates heat.
Heat is the number 1 enemy of any automatic transmission.
Reduce slippage, you reduce heat build up, and your trans is better off as a result.
Great thread!
Thanks
I have seen different answers on this.
Does removing TM shorten A6 transmission life?
Had my shop tune my 2011 A6 and the car is a totally different animal at WOT..... Power gain is really not noticeable (6whp gain with about 8wtq) but it definitely is a monster at WOT now.
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