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I have a 2017 C2S. I've run both tunes at the 91octane level. Cobb for a year and APR for a 1/2 tank of spirited driving to let the ECU adapt. The car has the X51kit, Vektor headers, Akra cats and exhaust, AMS intercoolers, and BMC filter.
Cobb - 1/4 mi, 11.17@129.73 (1500rpm "manual" launch). 60-130, 7.76secs. APR - 1/4, 11.03@129.1. 60-130, 7.94sec. Both tunes give smooth power and have a "OEM"feel at normal power levels. APR's torque by gear and linearized pedal map make the 1st thru 2nd gear WOT a lot more user friendly, little wheel spin or tail-wagging, and faster. The Cobb Pro-tune feels stronger from 3rd on, it's tuned for my bolt-ons and probably using them more efficiently.
These pulls were performed from the same spot with almost identical conditions, 59 deg for Cobb and 62 deg for APR. Dragy pulls its own weather and it's not accurate!
I did have an issue with the APR tune doing multiple launches (about 8 in a row The 4th thru 6th shut down the power right after launch, including w/ PSM off. I tried a 2000rpm/PSM off launch and it worked beautifully @ 3.26sec. Hopefully the issue was an anomaly, it worked fine a couple of days later on the1/4mile run, with another 3.26 auto launch.
I call that a dead heat. No clear winner there. With enough runs with both, you'd probably replicate both times on both tunes. Dead heat in my opinion.
Nice work! For added color, how much time would you guess you've spent doing your protunes for Cobb. I guess it comes down to flexibility (AP) and some complexity (protune) vs turnkey. Curious if you get any feedback on the issue you had with APR launching. Please share if you do.
Thanks for this data. I understand APR may not have DIY programming until the fall. So, I got the COBB AP as a little father day present for myself. I know its OTS tuning and maybe not max gains but the the 93 octane program is awesome. Like hold on, I need better tires, 0.8 G in first from a rolling start, scare/impress the kids in the back seat, warp drive awesome.
This is what I expected to be honest. We arent limited by the tunes, we are limited by the hardware. Same car with two top tunes will provide similar results.
Because this is a C2 and isnt a GTS, it produces less hp/tq, and wont exhibit the 3-4th flutter from either tune.
As others have stated, if both are the same and the Cobb AP allows you to switch between tunes without the need to bring the car to a shop, why would anyone prefer the APR?
The Cobb AP also allows you to clear errors like a diagnostic reader, allows you to time your car 0-60, 60-130 & 1/4 mile like a Dragy and it allows you to change between tunes on your car at home.
Let me answer my own questions.. Maybe APR is cheaper? Maybe they have better customer support or respond faster to questions? Maybe you have an APR dealer right down the street from your house?
Both are good companies with representation on the forums so you can't go wrong with either.
Tbh, while it’s very very close, I feel like the slight edge is with APR since theirs is OTS v the Cobb is a protune? The cost differential must be quite a bit. APR needs the at-home solution though.
@fsmich any comments on real world drivability? Will you return the APR and go back to Cobb?
Nice work! For added color, how much time would you guess you've spent doing your protunes for Cobb. I guess it comes down to flexibility (AP) and some complexity (protune) vs turnkey. Curious if you get any feedback on the issue you had with APR launching. Please share if you do.
I dropped the car off while on vacation and Mitch did the rest. 3 hours on the dyno.
This is what I expected to be honest. We arent limited by the tunes, we are limited by the hardware. Same car with two top tunes will provide similar results.
Because this is a C2 and isnt a GTS, it produces less hp/tq, and wont exhibit the 3-4th flutter from either tune.
As others have stated, if both are the same and the Cobb AP allows you to switch between tunes without the need to bring the car to a shop, why would anyone prefer the APR?
The Cobb AP also allows you to clear errors like a diagnostic reader, allows you to time your car 0-60, 60-130 & 1/4 mile like a Dragy and it allows you to change between tunes on your car at home.
Let me answer my own questions.. Maybe APR is cheaper? Maybe they have better customer support or respond faster to questions? Maybe you have an APR dealer right down the street from your house?
Both are good companies with representation on the forums so you can't go wrong with either.
This is a "GTS" (X51 kit!) with the 91 tune. Your 93 tune would make 20 more hp.Tyler said he has fixed the flutter at the E85 level (615whp). Really bad marketing if he has not. I believe him!
This is a "GTS" (X51 kit!) with the 91 tune. Your 93 tune would make 20 more hp.Tyler said he has fixed the flutter at the E85 level (615whp). Really bad marketing if he has not. I believe him!
Tbh, while it’s very very close, I feel like the slight edge is with APR since theirs is OTS v the Cobb is a protune? The cost differential must be quite a bit. APR needs the at-home solution though.
@fsmich any comments on real world drivability? Will you return the APR and go back to Cobb?
The APR is a lot easier to put the power down in 1st and 2nd, straight or more importantly to me, in a turn. I'm hoping to get to the track before my 30 day return window closes, to compare.
"I did have an issue with the APR tune doing multiple launches (about 8 in a row The 4th thru 6th shut down the power right after launch, including w/ PSM off."
Can you elaborate on this?
I was unaware of the x51 kit, but there is a HP/TQ level ( I dont know what it is) Where the flutter occurs. Maybe that extra 20hp is the tipping point?
I also have a 4 wheel drive to your 2 wheel drive. I have always felt that had something to do with these issues..
06-24-2020, 09:16 PM
Cobb Pro-tune/APR tune Dragy results
The 4th thru 6th shut down the power right after launch, including w/ PSM off. I tried a 2000rpm/PSM off launch and it worked beautifully @ 3.26sec. Hopefully the issue was an anomaly, it worked fine a couple of days later on the1/4mile run, with another 3.26 auto launch.
