Jmat
Full Access Member
Welcome to the club! Which tune did you go with? (87-89-93 octane). Did you get the "sport" mode?
Black Bear Tune!!!
- Thread starter babamerino
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babamerino
Full Access Member
Justin sent me the 91+Octane tune and ModTCM for my Transmission. Sport mode? Didnʻt know about that... Whatʻs that? But very happy with the results!!!
Yea, I had the top of the line Superchips ($600) & it was pure crap. Justin was in my area last year. Completely satisfied!!! Shift points smooth as butter! Power RPM!!!
My MPG went up a few (17 & 12), but now have to run premium, so its' a wash.
My MPG went up a few (17 & 12), but now have to run premium, so its' a wash.
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babamerino
Full Access Member
According to Justin, that is the modified tune for the tranny...
I'm about to make the BB Autocal purchase. I notice on the autocal page, it states this at the bottom:
For each vehicle, we will provide up to four different tune files, four out of process tune updates, or any combination of the two available at no additional cost.
Just to make sure I understand correctly, I could potentially have a MPG tune as well as a performance tune? So, I would have to kill the engine and re-flash in order to switch from MPG to performance tune, etc.?
I've heard ridiculously good things about Justin and his tunes, so I think it's time to bite the bullet. I just want to make sure I don't have unrealistic expectations since I've heard the performance and fuel efficiency were vastly improved by the same person. That leads me to believe the tune works off of how much throttle you give; i.e. 'MPG mode' when lightly using the accelerator and 'Performance mode' when punching it.
Thanks to all that contribute to this forum. I had lots of questions when I arrived here 3 months ago, and this is honestly the only thing I haven't stumbled across along the way. So, thanks again.
For each vehicle, we will provide up to four different tune files, four out of process tune updates, or any combination of the two available at no additional cost.
Just to make sure I understand correctly, I could potentially have a MPG tune as well as a performance tune? So, I would have to kill the engine and re-flash in order to switch from MPG to performance tune, etc.?
I've heard ridiculously good things about Justin and his tunes, so I think it's time to bite the bullet. I just want to make sure I don't have unrealistic expectations since I've heard the performance and fuel efficiency were vastly improved by the same person. That leads me to believe the tune works off of how much throttle you give; i.e. 'MPG mode' when lightly using the accelerator and 'Performance mode' when punching it.
Thanks to all that contribute to this forum. I had lots of questions when I arrived here 3 months ago, and this is honestly the only thing I haven't stumbled across along the way. So, thanks again.
felixgun
Full Access Member
If you have the AutoCal you can switch from economy tune to performance tune. I've had the in person tune by Justin and he definitely knows what he's doing. As far as economy tune is concerned, I had it before on my 08 Tahoe and didn't get any MPG's. The most noticeable difference is the transmission shifting points.
rocco787
Member
Just ordered my Autocal.
Best investment bud. You'll love it.
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Received my AutoCal earlier in the week. Should have my tune files back from Justin soon 
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