I've asked for a "Fuel Saver Tune" which extends the AFM parameters to help improve MPG both around town and on the highways.

Just got this info today!
It’s something that we’re definitely planning on looking into while we’re working on the new trans files.

Thanks SC for the excellent G8 Tunes!

I have AFM disabled because of the vibration around town, but if they can eliminate that I'm all for it. What I'm really interested in though is the new trans files, this has been an ongoing problem with the Superchips tunes.

I have AFM disabled because of the vibration around town, but if they can eliminate that I'm all for it. What I'm really interested in though is the new trans files, this has been an ongoing problem with the Superchips tunes.

Ongoing problem? Not sure I follow that one, but I'm also very interested in the new TCM tune. They are still finishing up 2010 models, but our TCM revision is next in line!

You know that many have complained about jerky and hard shifts with the Superchips tune, or did you forget about this? Besides I wouldn't think they'd be revising the trans tunes if there wasn't a problem.

I think an improved AFM tune for roadtrips would be very beneficial... Although I'm assuming it would be forcing the car into AFM more often and that really isn't a problem on highway cruising as far as I have observed with my car. It'd be nice to make it stay active with more throttle input than the current threshold though

I think an improved AFM tune for roadtrips would be very beneficial... Although I'm assuming it would be forcing the car into AFM more often and that really isn't a problem on highway cruising as far as I have observed with my car. It'd be nice to make it stay active with more throttle input than the current threshold though
X2. It comes out of AFM way too easily. It doesn't even seem as if I can keep speed while in AFM. It only seems to be active while decelerating. I'd swear it's only active up to like 2-5% throttle. I'd extend it to 10/15%. Probably 10 to be safe, not sure how the engine would like throttle+AFM.

You know that many have complained about jerky and hard shifts with the Superchips tune, or did you forget about this? Besides I wouldn't think they'd be revising the trans tunes if there wasn't a problem.

I have had no problems. I believe you, along with several others, have had a mechanical issue with the 2-3 change correct? Having to have a seal replaced or something? I also believe there is a TSB out on that issue. I have had no mechanical work done on my car, and have never had jerky shifting with the SC tune, only jerked with the stock tune.

That being said, all cars aren't the same, therefore we can agree they may react differently to the same settings. So others could have issues, which they should contact Superchips directly.

They are revising the TCM tune mainly because they have learned much more about the 6 speed while tuning the 2010 model trucks with the same equipment and they believe they can improve things.

They are revising the TCM tune mainly because they have learned much more about the 6 speed while tuning the 2010 model trucks with the same equipment and they believe they can improve things.

Can't wait for that! :wink2:

sounds good !!!

More options are better, I voted against only because I have some vibration issues I need to get rid of and eliminating AFM would be the quickest way.

More options are better, I voted against only because I have some vibration issues I need to get rid of and eliminating AFM would be the quickest way.

That's the same reason I've tuned mine out completely for most of the time. Interesting that I read somewhere that 2009.5 cars (GT's and GXP's) have "revised motor mounts that minimize or elliminate driveline vibrations related to AFM" ... wonder if I can convince my dealership to install the 2009.5 motor mounts in my 2009.1 car? hmmmmmm:secret:

wonder if I can convince my dealership to install the 2009.5 motor mounts in my 2009.1 car? hmmmmmm:secret:

I believe you can (http://www.g8board.com/forums/showthread.php?t=27943&highlight=motor+mounts).....although I am against them toughing my car unless something breaks and I can't fix it. I can live with a little vibration and not having them screw something else up while replacing the mounts.

Rather than having a seperate gas mileage tune (like they have done with the different intakes and 91/93 tunes), how about if they just added a drop down menu under the AFM/DOD enable/disable function (like they did with the TM) that allowed you to increase your AFM functionality (also like +25%, +50%, +100%, etc.). That way if someone running a Vararam tune or Rotofab tune also wants to increase their AFM they can. I know the lack of this ability with the Cortex was the main reason I was on the fence for so long over this tuner and had I not gotten the deal I got on a used one would not have purchased it. I just could not see spending $350.00 on this tuner when I could put that towards HPTuners which would give me the ability to increase my mileage (by tweaking the AFM) as well as doing all the other things this tuner can do. Of course the downside is the learning curve which I read is significant with these tranny tunes and the initial expense.

They might be able to do that, call Superchips and make a suggestion. It seems when people have a problem they post it here rather than calling Superchips. When I spoke to them the other day, the guy said very few people call them about problems they are having, so in order for you to get results you need to contact them.

ttt

+1 for a gas saver tune. it would be awesome for trips. The car def comes out of afm way to easily. Drop down menu option would be great but I don't know if it would be possible to do that.

Maybe a separate fuel saver tune for trips and a drop down menu option for increased AFM based on throttle position for when using the regular 87-93 tunes?

What are the new trans files by the way? I'm not noticing any issues. Do you have a rough estimate on when new files might come out? (months weeks ect)

What are the new trans files by the way? I'm not noticing any issues. Do you have a rough estimate on when new files might come out? (months weeks ect)

There are no issues that I know of.....and SC doesn't typically revise tunes. Since the G8 tune release, they have tuned a ton of other GM 2009 and 2010 models with the same 6 speed tranny. They have learned alot about the 6 speed and feel they can improve the TCM tune. It should be next in line once all the 2010 models are finished. I will let everyone know when I'm testing, and the release should be a couple weeks after that.

Please let us know, because this shifting issue sucks! I did raise the shift points in 1st and 2nd gears, but it's still jerky...

Next up, the dealership...

Please let us know, because this shifting issue sucks! I did raise the shift points in 1st and 2nd gears, but it's still jerky...

Next up, the dealership...


Try lowering your Shift Torque ;)

That's the same reason I've tuned mine out completely for most of the time. Interesting that I read somewhere that 2009.5 cars (GT's and GXP's) have "revised motor mounts that minimize or elliminate driveline vibrations related to AFM" ... wonder if I can convince my dealership to install the 2009.5 motor mounts in my 2009.1 car? hmmmmmm:secret:

I noticed the same, I may try once I pull my car out of storage. I have documented many service calls for a low speed vibration from AFM and some other source?... that I don't believe is the driveline (driveshaft).

too bad they can't spend an hour to retry the 93 roto tune. I think they got you on a hot day while tuning for such.

will the transmission tune make our cars any quicker or just smoother on the shifts?

From what I understand the trans tune will smooth out the shifts, many have complained about the hard 2-3 shifts.

From what I understand the trans tune will smooth out the shifts, many have complained about the hard 2-3 shifts.


http://i297.photobucket.com/albums/mm227/srg963/Smilies/ththreadjacked.gif
I'm sure this will be addressed with the TCM revision.


Personally, I'm not having any 2-3 shifting problems.

I've tried to duplicate the problem (it's kinda hard since no one can explain the problem), but I'm not having an issue. The only thing I found, is that shifting incorrectly, and manually shifting 2-3, with low rpms and low speed, at WOT, would cause a slightly rough shift or jerk into 3rd. Again, this was shifting incorrectly that caused the rough shift. When shifting in the appropriate rpm range, I have a very quick 2-3 shift.

That's the same reason I've tuned mine out completely for most of the time. Interesting that I read somewhere that 2009.5 cars (GT's and GXP's) have "revised motor mounts that minimize or elliminate driveline vibrations related to AFM" ... wonder if I can convince my dealership to install the 2009.5 motor mounts in my 2009.1 car? hmmmmmm:secret:


They replaced mine and it barely made any difference.

any updates on this?

No updates yet, I'll be sure to fill everyone in once I hear something :)

bump

any updates??
SRG-Just noticed you're in Charlotte... whereabouts?

Any updates for this thread?

any updates??
SRG-Just noticed you're in Charlotte... whereabouts?

South Charlotte....Tega Cay / Fort Mill area

Any updates for this thread?

The only info I have, is that the fuel saver tune is still on the table for the G8GT.

is this ever going to happen?

Haven't heard anything for a long time....not sure.

I just updated mine recently and my 3 - 2 and 2 - 1 shifts are amazingly better (I drive in manual mode when I don't want AFM). It still jumps forward when down shifting in higher RPMs but not like it did before.

I personally would love more AFM control. The sound nor vibration bothers me when I'm driving on the hwy and I drive in manual mode when I don't want AFM anyways.

Bump and what about this as a possibility, for an economy tune leave the car in normal "D" and for the performance tune bump the shifter to the right and use the "sport" mode.

I am not sure what all changes when you move the shifter from normal to sport if it only affects the trans or if it changes adjusts timing/fuel tables, etc.

From what I've heard, the tuning for the G8 is done :(
No "fuel saver tune".
I'll let y'all know if I hear otherwise.

Correct if im wrong but i thought there used to be a gas saver tune available back when they were comming out with the vararam tunes..


Do u mean any tuning is done for the G8?

I have read something about people having an E85 tune, is that accurate?

Do u mean any tuning is done for the G8?

I take that to mean that Superchips is not putting any more development or effort into a discontinued car line like the G8.

No new developments as no new cars and dwindling customer base.

Sorry...