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2020 AMG GTR Roadster, 2012 CLS AMG63, amongst a vast collection of old school cool stuff.
GTR Tune
Best tune for 2020 GTR? I have been reading old posts, and am still confused? Car only has 2k miles, no interest in changing down pipes or anything else other than BPM Filters......
I have a 2020 GTR also ( Hell Mango) and love it. I originally did the whole Renntech tune and thought it was nice. I'm a road track guy so mid power was very important to me. The one issue I had with Renntech was when I would come off a turn the car would lag a little until boost would kick in, then I would have to play catch up again. Catch up was easy given the Renntech tune gave me 640whp and 567 tq and once I was going getting to speed wasn't an issue. I wanted to be a little more aggressive, but not max out my engine or turbos or have potential codes or issues later. After a ton of research I linked up with HCP Tuning. These guys are amazing at what they do and tune a car based on how you drive and not just a generic tune like you get when buying these others from sites. Not saying the other tunes don't give you more power (they do) or that their no good ( they are) but its generic and like everyone else's. I found my self not setting myself apart. After linking up with HCP I was able to achieve a conservative 691 WHP @ 6.1 RPM and 693 tq @4k RPM. They hit the mid exactly where I needed it be. Heres some graphs Renntech vs HCP. I say conservative because our engine is capable of much much more, but if fuel isn't good quality then you have timing issues and other things. With this tune I can run 91 Octane and know that my engine is hitting the timing correctly. Once I add some 100 octane for race day I'll definitely achieve more power. The dyno itself was brand new so I would also assume I'm really 15-20 more WHP then the graph shows.
I have a 2020 GTR also ( Hell Mango) and love it. I originally did the whole Renntech tune and thought it was nice. I'm a road track guy so mid power was very important to me. The one issue I had with Renntech was when I would come off a turn the car would lag a little until boost would kick in, then I would have to play catch up again. Catch up was easy given the Renntech tune gave me 640whp and 567 tq and once I was going getting to speed wasn't an issue. I wanted to be a little more aggressive, but not max out my engine or turbos or have potential codes or issues later. After a ton of research I linked up with HCP Tuning. These guys are amazing at what they do and tune a car based on how you drive and not just a generic tune like you get when buying these others from sites. Not saying the other tunes don't give you more power (they do) or that their no good ( they are) but its generic and like everyone else's. I found my self not setting myself apart. After linking up with HCP I was able to achieve a conservative 691 WHP @ 6.1 RPM and 693 tq @4k RPM. They hit the mid exactly where I needed it be. Heres some graphs Renntech vs HCP. I say conservative because our engine is capable of much much more, but if fuel isn't good quality then you have timing issues and other things. With this tune I can run 91 Octane and know that my engine is hitting the timing correctly. Once I add some 100 octane for race day I'll definitely achieve more power. The dyno itself was brand new so I would also assume I'm really 15-20 more WHP then the graph shows.
So you're saying you only have a tune with no other mods and you got this result? So HCP stage 1 (91 or 93 dyno tune)?
Last edited by Wasserott; Nov 30, 2021 at 03:51 PM.
So your saying you only have a tune with no other mods and you got this result? So HCP stage 1 (91 or 93 dyno tune)?
I do have other mods. No possible way to achieve this just on a stage 1 tune. What I was trying to point out was the difference in tuning between Renntech and HCP. 93 tune, but the gas around here is more like 91 lol… but for sake of conversation I had them run a 93 dyno tune.
Engine performance mods are down pipes and larger turbos. Currently running a stage 2
Last edited by Hell-GTR; Dec 1, 2021 at 10:38 AM.
Reason: incorrect information
Best tune for 2020 GTR? I have been reading old posts, and am still confused? Car only has 2k miles, no interest in changing down pipes or anything else other than BPM Filters......
I just installed an OE Tuning tune on my 2018 GTC. So far very happy with the results as I have described recently. I don't have any other connection with OE Tuning so my review is 100% arms length.
Eurocharged is likely your best bet. Cheaper than OE Tuning, also more hp/tq, and significantly cheaper than Renntech. PM @loungn14 For a possible forum discount, bringing the price even further down below OE/Renntech.
Eurocharged is likely your best bet. Cheaper than OE Tuning, also more hp/tq, and significantly cheaper than Renntech. PM @loungn14 For a possible forum discount, bringing the price even further down below OE/Renntech.
I paid $1,000 for my OE Tuning which included the Genius device. I bought it for other reasons than just price, but Eurocharge was asking $1,800 at the time.
2025 Lucid Air Grand Touring, 2022 F-150, 1926 Rolls-Royce SSG roadster
I'd like to squeeze some more HP out of my car like the 2021s. I assume it's all the same hardware and just a programming bump. But I worry about the warranty issues.
I'd like to squeeze some more HP out of my car like the 2021s. I assume it's all the same hardware and just a programming bump. But I worry about the warranty issues.
I I have the same concern. That's why I went with a tuner where I could not find any reference to someone having a warranty claim issue. Also, that's why I got the Genius device so I can easily flash back to original anytime I want. So far so good. I'm taking my car in for service today which will require a reading of the ecu, and I will keep everyone apprised how that goes.
... I'm taking my car in for service today which will require a reading of the ecu ...
Did you happen to confirm that, when the car's normal ECU config is restored, the check-code is also restored? If MBZ has thought about security, it could be very challenging to do so and, if it's not restored, that'd always be a clear indicator of some changes having been made.
Did you happen to confirm that, when the car's normal ECU config is restored, the check-code is also restored? If MBZ has thought about security, it could be very challenging to do so and, if it's not restored, that'd always be a clear indicator of some changes having been made.
I didn't do that (don't know how) but just today I asked OE Tuning if there would be "logs" of my change. The employee I spoke too didn't have specific knowledge, but said they had never had a warranty problem due to a tune. My appointment went well so I'm going back to the OE Tune. It's definitely bumps the performance up to the level I desire.
I paid $1,000 for my OE Tuning which included the Genius device. I bought it for other reasons than just price, but Eurocharge was asking $1,800 at the time.
Is that Oetuning price available to everyone, all the time, because it's much more than that on their website. I believe Eurocharged always gives a forum discount for their tune + handheld.
Is that Oetuning price available to everyone, all the time, because it's much more than that on their website. I believe Eurocharged always gives a forum discount for their tune + handheld.
I don't know if that price is still available, but I'd be surprised if it wasn't. At least when I checked it out, Eurocharge also charged $400 extra for the Genius device. From what I could see, the comparison was $2,200 versus $1,000. I'm just a consumer so that's pretty much all I know. I'm sure you could call either company to find out what their current pricing is. If Eurocharge had a sale that got it anywhere near $1,000, I missed it.
I don't know if that price is still available, but I'd be surprised if it wasn't. At least when I checked it out, Eurocharge also charged $400 extra for the Genius device. From what I could see, the comparison was $2,200 versus $1,000. I'm just a consumer so that's pretty much all I know. I'm sure you could call either company to find out what their current pricing is. If Eurocharge had a sale that got it anywhere near $1,000, I missed it.
I payed $1400 or so for stage 1 and handheld with Eurocharged, just by pming the forum sales rep. You're the first person I've seen talk about a discount for OE, so I'm not sure how readily available that price is, but I can't argue with how good of a deal that is, even with the lesser HP/TQ figures.
Is that Oetuning price available to everyone, all the time, because it's much more than that on their website. I believe Eurocharged always gives a forum discount for their tune + handheld.
Yes, we are running an "End of the Year Sale" for all MB World members.
Great deals are available until December 31st.
Did you happen to confirm that, when the car's normal ECU config is restored, the check-code is also restored? If MBZ has thought about security, it could be very challenging to do so and, if it's not restored, that'd always be a clear indicator of some changes having been made.
No, the check-code won't be restored. MB can still detect if you had a tune on the car.
2025 Lucid Air Grand Touring, 2022 F-150, 1926 Rolls-Royce SSG roadster
Originally Posted by NYCSoiL
No, the check-code won't be restored. MB can still detect if you had a tune on the car.
I believe this is correct. In 2019, a year after I purchased my GT coupe, the car was in for service and the software was modified. I asked my service rep afterwards what the new software was and he said it was to allow the car's computer to "remember" all changes made to the car's tune. I reported this back in 2019.
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GTR Tune
