Gear ratios for MY 2018 GT R (North America)
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From: Canyon Country, CA USA
2018 Mercedes-AMG GT R Evo
Gear ratios for MY 2018 GT R (North America)
Can't seem to find these. The only thing I found was the final drive of 3.88:1.
I'm interested in seeing the maximum speed permissible in each gear. Back in the day this was included in any road test.
Thanks for any help. My calculator awaits.
I'm interested in seeing the maximum speed permissible in each gear. Back in the day this was included in any road test.
Thanks for any help. My calculator awaits.
I 3.08 (11.95)
II 2.19 (8.5)
III 1.63 (6.32)
IV 1.29 (5.01)
V 1.03 (4)
VI 0.84 (3.26)
VII 0.7 (2.72)
Final drive ratio std: 3.88
Just keep in mind that permissible is very theoretical at speeds over about 120MPH. Drag will slow you down considerably as your speed goes up.
The GTR theoretical speed can be at 215MPH at 7th gear, but drag will limit it to about 200. To overcome some of the drag limits and gain more speed over the 200, you will need more HP = Tune.
Last edited by G. P; Oct 18, 2022 at 08:29 AM.
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From: Canyon Country, CA USA
2018 Mercedes-AMG GT R Evo
Many thanks for that G.P. I am well aware of the role that aerodynamics play. My Lotus Seven is a brick after 100 mph so I just played with gearbox ratios and to a lesser extent final drive ratios.
Wow, that is amazing. What Year and version of the Lotus Seven do you have? any Pics?
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This site often has fairly complete and accurate data:
https://www.automobile-catalog.com/
... including the theoretical max speed by gear:
https://www.automobile-catalog.com/auta_details1.php
https://www.automobile-catalog.com/
... including the theoretical max speed by gear:
https://www.automobile-catalog.com/auta_details1.php
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AMG GT C Edition 50
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From: Canyon Country, CA USA
2018 Mercedes-AMG GT R Evo
My dad acquired it in the '70s.
He promptly dismantled it.
When he died in 1992 I had to sort through his 50 year accumulation of British and VW stuff.
I had a new and improved chassis built for it so it looks like this now.
First iteration
Second iteration
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Thread Starter
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From: Canyon Country, CA USA
2018 Mercedes-AMG GT R Evo
1st - 48 MPH
2nd - 68
3rd - 91
4th - 115
5th - 144
6th - 177
7th - 212
All speeds theoretical
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Thread Starter
Senior Member
Joined: Jan 2022
Posts: 291
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From: Canyon Country, CA USA
2018 Mercedes-AMG GT R Evo
Thank you.
I would hope so since I had the chassis and factory drawing at the disposal of the fabricator. Series 2 cars are notably weak so we made a number of improvements. I wasn't interested in going back to Sprite power and I had several English Ford engines available so I built up a 1500cc pre-crossflow. Makes perhaps 85 BHP and the car weighs 1100 lbs.
I would hope so since I had the chassis and factory drawing at the disposal of the fabricator. Series 2 cars are notably weak so we made a number of improvements. I wasn't interested in going back to Sprite power and I had several English Ford engines available so I built up a 1500cc pre-crossflow. Makes perhaps 85 BHP and the car weighs 1100 lbs.
