Anyone go from tune to tune?
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And then there are stories (from thise forum) where they had engine hesitation issues from on tuner and when he switched to another, the problem went away.
Burning Brakes
Joined: Oct 2023
Posts: 1,192
Likes: 850
From: West Coast
Sorry I know I wasn't answering your question. I don't have experience working with tuners or shops because I do my own stuff.
I was just trying to add something to the conversation that I have seen come up when comparing tunes from different tuners in different regions.
So more advice is to evaluate the business, their body of work, and their customer satisfaction first and foremost. I.E. is this a dyno version of a lemonade stand? Is it a well functioning business, with happy employees, clean facilities, well organized equipment and storage, a good reputation in the community, active in motorsports, doing dealer level repairs and maintenance etc. etc. ?
**** happens, it's how the company handles it that's important.
I was just trying to add something to the conversation that I have seen come up when comparing tunes from different tuners in different regions.
So more advice is to evaluate the business, their body of work, and their customer satisfaction first and foremost. I.E. is this a dyno version of a lemonade stand? Is it a well functioning business, with happy employees, clean facilities, well organized equipment and storage, a good reputation in the community, active in motorsports, doing dealer level repairs and maintenance etc. etc. ?
**** happens, it's how the company handles it that's important.
Drifting
Joined: Feb 2016
Posts: 2,092
Likes: 740
M-engineering offers the extra features related to cold-start noise and the exhaust valve which I think you can customize. You can use their OTS tune or they can do a custom tune for you which becomes more beneficial if you have mods. APR seems to offer much of the same features, but only OTS tune available. You can use it with mods, but it won't be optimized. COBB seems to be in the middle in that you can custom tune for performance, but I don't think they offer the ability to do the things like the exhaust valve control.
Rennlist Member
Joined: Jun 2021
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From: St. Louis, MO
I’ve only had M Eng. I’ve run 93 stage 2 and 91 stage 1.
I have not had any issues with them.
I really enjoy the cold start delete and the valve full open mods.
Not what you’re asking, but that’s all the info I have.
I have not had any issues with them.
I really enjoy the cold start delete and the valve full open mods.
Not what you’re asking, but that’s all the info I have.
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Intermediate
Joined: Jan 2024
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I haven't tried anything other than m engeneering tuner but I can confirm that in my opinion it is the best solution.
first reprogramming of my life on a vehicle.
extremely simple solution to install.
exceptional customer service.
It's quite simply the Rolls Royce for our Porsche vehicles.
For my part, I did not hesitate with any other solution because the m-tuner was obvious.
I live in France and I am proud to have trusted m engeneering.
I am extremely satisfied with their solution.
do not hesitate.
first reprogramming of my life on a vehicle.
extremely simple solution to install.
exceptional customer service.
It's quite simply the Rolls Royce for our Porsche vehicles.
For my part, I did not hesitate with any other solution because the m-tuner was obvious.
I live in France and I am proud to have trusted m engeneering.
I am extremely satisfied with their solution.
do not hesitate.
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Joined: Nov 2021
Posts: 4,744
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From: Canada
With a turbo engine, what is there to compare? Boost and timing is the main metrics changed. How far do you want to push your fuel, there is no secret here in tuning?
Get the best fuel you can get, turn the boost and timing up till it knocks a bit and turn the timing back down a degree or so for safety, done. Just because you used ABC vs DFC doesn't mean they can push more power from the same fuel...
Perhaps there is differences if they work on part throttle tuning etc, or rolling in the boost smoother. You definitely, do not want the boost smashing too heavy in the mid RPM range.
This is assuming you can log and send your tune in for revisions, if you CAN'T... find a new tuner.
Get the best fuel you can get, turn the boost and timing up till it knocks a bit and turn the timing back down a degree or so for safety, done. Just because you used ABC vs DFC doesn't mean they can push more power from the same fuel...
Perhaps there is differences if they work on part throttle tuning etc, or rolling in the boost smoother. You definitely, do not want the boost smashing too heavy in the mid RPM range.
This is assuming you can log and send your tune in for revisions, if you CAN'T... find a new tuner.
Racer
Joined: Apr 2022
Posts: 333
Likes: 145
From: Melrose, MA
I think what the tuners do beyond boost, timing and fuel is what separates the bad from good from great. I haven't tuned my 911 yet, but from past experience with APR and GIAC on Audis, I certainly wouldn't hesitate to use them again. It's nice how each of the tuning options for the 992 platform offers something different than the others. It makes you focus less on power to decide.
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Joined: Nov 2022
Posts: 244
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From: Boerne Texas
With a turbo engine, what is there to compare? Boost and timing is the main metrics changed. How far do you want to push your fuel, there is no secret here in tuning?
Get the best fuel you can get, turn the boost and timing up till it knocks a bit and turn the timing back down a degree or so for safety, done. Just because you used ABC vs DFC doesn't mean they can push more power from the same fuel...
Perhaps there is differences if they work on part throttle tuning etc, or rolling in the boost smoother. You definitely, do not want the boost smashing too heavy in the mid RPM range.
This is assuming you can log and send your tune in for revisions, if you CAN'T... find a new tuner.
Get the best fuel you can get, turn the boost and timing up till it knocks a bit and turn the timing back down a degree or so for safety, done. Just because you used ABC vs DFC doesn't mean they can push more power from the same fuel...
Perhaps there is differences if they work on part throttle tuning etc, or rolling in the boost smoother. You definitely, do not want the boost smashing too heavy in the mid RPM range.
This is assuming you can log and send your tune in for revisions, if you CAN'T... find a new tuner.
Tuners do much more than set target AFR and boost numbers. I wouldn’t have known unless I took it in because I thought the lid swap might need to be verified as safe at the levels I’m running and I learn something. I’m not calling anyone out, just trying to tell my story so others can make an educated decision about what tuners can do.
I’m within driving distance from APR but haven’t made a decision to tune or leave it like it came from the factory. I’ve tuned my GL450 and E63. The E63 is NA so the shifting and cold start are really the big things I noticed. The GL450 (3.0tt) ripped but it also damaged the engine mounts and they are a huge pain to swap so I wouldn’t do it again. The LS3/LSA I mentioned is a different vehicle, they really need the extra power but 700 is too much without some chassis bracing. You can feel the chassis twisting so I’m going to pulley down to 625ish where tires will last a bit longer.
