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New owner with slower GTS

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New owner with slower GTS

Old 06-11-2018, 06:01 AM
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New owner with slower GTS

Hello everyone,

I just bought a used GTS edition one with 4000 miles on the clock. The car history in the dealer is clean and there are no messages on the dash however before driving the car i tested my friend's GTS it felt much much faster than mine and no turbo lag whatsoever although my friend's GTS has almost triple the miles on mine. Any ideas on what it may be? The previous owner did say he never used 95 fuel (it was only recently introduced in my country) and he never used the car in S S+ or Race mode! It just feels like the car is heavier and slow to respond!

PS- the weather these days reaches up to 113F

Thank you i would appreciate any input!

Last edited by N91K; 06-11-2018 at 07:41 AM.
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Old 06-11-2018, 10:30 AM
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Sounds as though the previous owner babied his car and didnít break it in. He may have put a few miles on it but didnít push it. The engine needs to limber up so to speak . It will react differently after you put some miles on it where itís being pushed further.
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Old 06-11-2018, 11:43 AM
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Originally Posted by thecutter64 View Post
Sounds as though the previous owner babied his car and didnít break it in. He may have put a few miles on it but didnít push it. The engine needs to limber up so to speak . It will react differently after you put some miles on it where itís being pushed further.
I appreciate your input thank you!
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Old 06-11-2018, 11:49 AM
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Other possible differences: tires, wheels and weight.
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Old 06-11-2018, 12:50 PM
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I would still run a diagnostic at dealer. Maybe IC not performing 100% in that hot weather
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Old 06-11-2018, 12:57 PM
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What is your engine oil and trans temp on a 113F day?
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Old 06-11-2018, 01:21 PM
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Originally Posted by AMG 17GT View Post
I would still run a diagnostic at dealer. Maybe IC not performing 100% in that hot weather
I took it and they said everything was totally fine.
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Old 06-11-2018, 01:21 PM
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Originally Posted by MalibuScott View Post
Other possible differences: tires, wheels and weight.
It is similar to the other GTS and weight too.
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Old 06-11-2018, 01:26 PM
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Originally Posted by benzbell View Post
What is your engine oil and trans temp on a 113F day?
Oil change was done at the dealer 6 months ago and the trans temp i did not check to be honest.
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Old 06-11-2018, 01:46 PM
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Get the car on a dyno- that will tell you.
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Old 06-11-2018, 02:40 PM
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Originally Posted by Vic55 View Post
Get the car on a dyno- that will tell you.
+1 . More accurate than butt dyno.
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Old 06-11-2018, 07:33 PM
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Originally Posted by Vic55 View Post
Get the car on a dyno- that will tell you.
Good idea!
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Old 06-11-2018, 07:38 PM
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If he's been driving it in 'C' mode most of the time and not rolling into the throttle often, the car may well have adapted to a 'granny' style of driving. Get to some open roads; place the car in 'S/S+' and floor the throttle when its safe to do so. Also use 'M' mode for the gear box and get it up to the upper reaches of the rev band.

I'd do the above first. If it doesn't start acting like your friend's GTS I'd do as Vic and others have recommended; get it on a dyno and see what hp/torque its putting out at the wheels.

Let us know what happens.

Bish

Last edited by thebishman; 06-11-2018 at 10:14 PM.
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Old 06-11-2018, 07:49 PM
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Old 06-12-2018, 12:12 AM
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Originally Posted by N91K View Post
Hello everyone,

I just bought a used GTS edition one with 4000 miles on the clock. The car history in the dealer is clean and there are no messages on the dash however before driving the car i tested my friend's GTS it felt much much faster than mine and no turbo lag whatsoever although my friend's GTS has almost triple the miles on mine. Any ideas on what it may be? The previous owner did say he never used 95 fuel (it was only recently introduced in my country) and he never used the car in S S+ or Race mode! It just feels like the car is heavier and slow to respond!

PS- the weather these days reaches up to 113F

Thank you i would appreciate any input!
Maybe your friend has a secret tune?
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Old 06-12-2018, 04:28 AM
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Originally Posted by thebishman View Post
If he's been driving it in 'C' mode most of the time and not rolling into the throttle often, the car may well have adapted to a 'granny' style of driving. Get to some open roads; place the car in 'S/S+' and floor the throttle when its safe to do so. Also use 'M' mode for the gear box and get it up to the upper reaches of the rev band.

I'd do the above first. If it doesn't start acting like your friend's GTS I'd do as Vic and others have recommended; get it on a dyno and see what hp/torque its putting out at the wheels.

Let us know what happens.

Bish
I will do what you said but how long do you think this would need? So that i just have a rough idea on when to move to the second plan.

Originally Posted by Case1906 View Post


Maybe your friend has a secret tune?
No it is bone stock but the he is an aggressive driver most of the time!
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Old 06-12-2018, 10:13 AM
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Might your friend's car have a tune? There is a measurable difference in performance with/without.
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Old 06-12-2018, 12:45 PM
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Originally Posted by N91K View Post
I will do what you said but how long do you think this would need? So that i just have a rough idea on when to move to the second plan.



No it is bone stock but the he is an aggressive driver most of the time!
A couple of hours tops? Maybe just a couple of high speed runs.
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Old 06-12-2018, 04:43 PM
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I took the car out tonight for a long drive and pushed it and on the way back i noticed it acted differently! Thank you all for the help and feedback, turned out it was babied like a few of you said!
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Old 06-12-2018, 04:46 PM
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Maybe ask the dealer reset the adaptation so your car can re-learn YOUR driving style, IF dyno shows the power and tq is there?
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Old 06-13-2018, 05:37 PM
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What color is your friends car?....Darker colors are faster
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Old 06-13-2018, 06:33 PM
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Don't forget... There's a slew of options available if it's still not fast enough to suit your needs!

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Old 06-21-2018, 11:19 PM
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So I can say this without hesitation...my car on a 70 degree day is absolutely faster than it is on a 110 degree day (of which we've had a few close to 110 lately). Air intake temperature is a huge factor both in regards to power made by literally by the cool air and the power the car is allowed to make by the ECM due to air intake and exterior air temp. I'm guessing here but I bet I'm down 50hp between 70 and 100 degree day.
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Old 06-21-2018, 11:36 PM
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Originally Posted by triblk6spd View Post
So I can say this without hesitation...my car on a 70 degree day is absolutely faster than it is on a 110 degree day (of which we've had a few close to 110 lately). Air intake temperature is a huge factor both in regards to power made by literally by the cool air and the power the car is allowed to make by the ECM due to air intake and exterior air temp. I'm guessing here but I bet I'm down 50hp between 70 and 100 degree day.
Good reason to install water methanol injection
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Old 06-23-2018, 11:15 AM
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Originally Posted by 300blackout View Post
Good reason to install water methanol injection
I am in South Fl and could not agree more with triblk6spd's statement. I really can feel the difference especially in second gear when the ECU allows the full beans. Waiting on your review before pulling the trigger on the matter. Chop chop Mister
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