Hi all, I have a Magno Green 2018 AMG GTR, and I'm exploring tuning options for the platform. I spoke with Eurocharged and OE Tuning there are basically two stages I'm looking to do: Stage 1 or Stage 3 (not planning to do downpipes).
Stage 1 OE Tuning;
$1,000 with the MyGenius Loader
HP: 617, Max gain 40
TQ: 601, Max gain 85

Stage 3 Eurocharged; Around $5,500
$3,000 Turbo upgrade from Pure Turbo
$2,200 Stage 3 Tune
$300 MyGenius Loader
HP: Around 680, Max Gain 103
TQ: Around 620, Max Gain 104

There are a lot of Stage 1 tunes on the forum but not much info on the stage 3 turbo ugprade. Does anyone have any inputs to whether if stage 3 and the extra 4.5K are worth it? I mainly do spiritual highway driving and I don't do street racing. Thank you for your inputs.

 

@kumizi Is a bit above the Stage 3, but can likely give you insight.

 

where are ya located?

 

Pure Turbos has two different turbo upgrades for our cars.

Pure 900- $3500

Pure 1000 - $5000

I talked to the guys at Eurocharged Austin and they advised I go with the bigger turbos for what I wanted (highway driving 50-120mph). Figure about $1000 for install and $2000 for tune in addition to the price of the turbos. So you're looking around $8000 total. It was totally worth it to me. The car will make ~800hp on a 93 octane tune. You can make 900-1000hp on race gas.

If you are a track guy, maybe they might recommend the smaller turbos.

Stage 1/tune only GTR is around 650hp.

 

Most modern cars have smaller engines because of fuel and environmental regulations. To make up for smaller engines, they have to go with smaller turbos to move the powerband down into a usable range. The downside is that even with a tune, most OEM turbo cars run out of air way before redline. If you actually pull your car to redline frequently, you'll be able to tell a big difference with bigger turbos.

If you just want more oomph driving around town, a tune is enough for 90% of people.

 

Are you able to put the power to the ground? I’ve been very skeptical to do any sort of power mods to the GTR because I’m hearing mixed messages about the TCU limiting any sort of power gains from an ECU tune?

Also, there doesn’t seem to be much data on real world results? The few videos I could find of tuned GT’s running the 1/4, the trap speeds seem identical to stock, maybe a few tenths shaved off the ET. I guess with the exception of the Dubai GT but I think they delved deep into tuning and not an off the shelf tune??

Not that I’m necessarily trying to turn this into a drag monster. Thinking maybe downpipes with HJS 200 cel cats and no tune, just to get a more aggressive sound without triggering a CEL might be good enough.

 

At risk of being Captain obvious, I would try a stage one Eurocharged tune if your mostly on street and highway. You gain the 50hp but 120ft pds will really wakes up throttle response. Maybe work out an agreement that they will include stage 3 tune if you buy the turbos later inside of one year.

 

El Paso, TX

 

This was my approach. I spend a lot of time on the track but felt a gradual increase would be best. See if the car needs the additional from turbos.

 

You are correct about the TCU but it does depend on the year of the car to see if the CPC plays into it. We do have a tune for both the CPC as well as the TCU to get around that issue. We own 3 AMG GT/GTR for shop cars and done a done more. We have real work results on our instagram with numbers etc.

I would start with a basic tune and go from there. If you ever wanted to go bigger we just charge the difference between stages to upgrade. One other thing you might want to consider before turbos is doing fuel pumps and then blended fuel (E50 etc) Makes great power!

https://www.instagram.com/p/CGSlsX7F..._web_copy_link

 

Not sure how much the tune will gain on a GTR, but I did the stage 2 on my GTS, its supposed to be about 625WHP and 650WTQ based on dyno graphs from eurocharged but i haven't personally dyno'd it. The power in a real wheel drive car is nuts, I can't use it unless I'm at a good roll, say 50mph +. If I even got to 80% of throttle under 50mph I spin with that much torque (I have PS4's on 295's) . I would highly recommend a tune first, eurocharged are pretty generous to customers on future tunes, so you wouldn't be paying "retail". I've used Eurocharged for about 10 years between a couple of cars and they have been great to work with and I've had very good results.

Be careful chasing horsepower. I had a Nissan GTR, which has AWD which is a great benefit with high HP and torque, I had full bolt-on upgrades, but stock turbos and ran E85. Estimate HP on E85 was about 650whp and 600wtq, that's a conservative estimate. I could launch it in a straight line with little wheel spin due to the AWD. My buddy has a 1300hp GTR, and from a stop, I was neck and neck with him for the first 1/8th of a mile. From a roll he'd of course pull away. I got out of it because it was never enough, I had spent $15k in upgrades and was probably going to be in for another $50k and be over 1000hp and decided to get out if it. I could never use the power unless I was at the track, or on some secluded road, when I did use it in normal circumstances it allowed me to do dumb things

I have found in my GTS, 600whp is a little more than this car needs, its hard to keep traction. If you're trying to run a quarter mile, this is the wrong platform, if you want a fun track car, you need to look at tires and braking. I'm not saying don't turn, I love hp and always do it, I'm just suggesting you start with a tune and see how it feels before you go to bigger turbos, it won't cost you any more in reality to go that route.

 

Just a heads up, you can go 305s in the PS4S on stock GTS wheels.

 

Thanks, next time, I was trying to solve a differential problem that was cause by tires.. see my other story of woah . It was easier to go with the 295's to rule everything out... but yes, I would like to go a bit bigger next time.

Other post - https://mbworld.org/forums/coupe-roa...l-warning.html

 

I'm having a hard time believing those figures unless people are dynoing in 5th gear these days and older advertised numbers were in 4th gear. It's kinda weird that supposed tune or tune/downpipe figures keep getting higher and higher but I havent seen anyone run faster than 130-131mph since the 550rwhp cars from 2016-2017.

I dont want to create any drama. I'm just confused what's going on.

 

You're correct. Most WOT runs in a drag racing scenario are from 5000-7000RPM. Most of the gains from a tune come in the mid range. The car feels a lot faster but the OEM turbos are usually peaked by 5500rpm and not making any more power up top.

 

I feel from the butt dyno the tune is significantly more power, I can pretty much floor the GTS in stock tune from a decent roll and it feels "quick' but not fast (I've owned or driven a lot of very fast cars). Once the tune is applied it feels fast like you better watch what you're doing fast. And as I said before, in a RWD car, its hard to use.

Of course, this is all subjective, at some point I do plan on getting my Car Dyno'd to see what it really makes, it has downpipes (came with them used) and a Eurocharged stage 2 tune.

 

This was what we ended up doing. Actually, your tune just got delivered to my house yesterday, unfortunately, I am in Austin for the next couple of weeks. Jerry mentioned because my car was 2020 we didn't actually need to flash the CPC as well. Just straight tune.

Have a day at the track booked for the 14th - really looking forward to testing out the tune. I'll install it when I am home on the 13th.

 

Have anyone have any experience with OETuning? I'm thinking of going ahead and get their tune. Their price seems to be the most reasonable for my pocket?

 

Looks like they only do stage 1 tunes, and are more expensive than Eurocharged, not even taking into account Eurocharged sales which are usually around $1500 for tune and handheld. I don't personally know anyone that uses oetuning.

 

You have a very nice car with a very expensive engine should something go wrong.

We are so confident in our tuning options that we offer a warranty. Most of the competition does not.

 

This is worth noting imo.

Installing my tune in a week. Track the next day. As long as I don’t put it into a wall with the new torque curve - I shall report back!

 

They offered the pricing of their last year sale, $1,100 for Stage 1 Tune with MyGenius and the Pop and Burble option.

 

Please do, I plan to make the decision on Tuesday next week.

 

Nam, maybe you should read the thousands of posts in this forum regarding tunes on this engine. .....

 

Absolutely! You certainly can't shop for the cheapest price without doing the rest of the homework. Post sale service is huge as well as having a company large enough to know if there was an issue you are covered.

Let us know how you like it!!!