SpeedDriven's CL65 does 188.5mph and SL600 does 197.8 mph at the Texas mile!!!
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02 S500 Sport
A stock tired SL600 has a theoretical top speed of 210 mph based on its 2.65 rear, .83 5th gear and 6K redline. It looks like the car is running on 305/25/20's out back. This only bumps the theoretical top speed to 211 mph. I'll assume that the car has enough power to be limited by its gearing. So are you saying you will hit 210+mph before the end of the mile.. if so let me say ....
Tom
Tom
Tom, are you saying the gearing is limiting the top speed of the vehicle?
If the CLK63BS top speed is 199 and it hit 161 on the mile...
Can I assume this CL65 can easily go to 240+? Or its limited somehow by its gearing?
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Let me go off-course for a second and discuss top speed, not the Texas mile.
Tom, are you saying the gearing is limiting the top speed of the vehicle?
If the CLK63BS top speed is 199 and it hit 161 on the mile...
Can I assume this CL65 can easily go to 240+? Or its limited somehow by its gearing?
Tom, are you saying the gearing is limiting the top speed of the vehicle?
If the CLK63BS top speed is 199 and it hit 161 on the mile...
Can I assume this CL65 can easily go to 240+? Or its limited somehow by its gearing?
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SL55 AMG
Any car can hit top speed given they have enough distance to do it and are not impacted by catastrophic failure. This said any given car is limited in it's speed by it's gearing, so as Ahmad said if you make the power you will go as fast as your gearing lets you, that's the governance. One of the things these standing mile cars have to do is optimize gearing specifically for the range of 1 mile (taller gear) allowing them to utilize their power most effectively in accordance with the gearing...same is true for 1/4 mile cars - they would benefit from optimizing gearing for that distance (ussually a shorter gear). Hence a car optimized for the standing mile would not be optimized for 1/4 mile and vice versa...as Marcin told me once on the phone during a fairly long conversation on dynamics and automotove theory - "Know what you want to do, identify a purpose before spending any money or undertaking any build/project"
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'14 E63S & '14 Audi SQ5
Let me go off-course for a second and discuss top speed, not the Texas mile.
Tom, are you saying the gearing is limiting the top speed of the vehicle?
If the CLK63BS top speed is 199 and it hit 161 on the mile...
Can I assume this CL65 can easily go to 240+? Or its limited somehow by its gearing?
Tom, are you saying the gearing is limiting the top speed of the vehicle?
If the CLK63BS top speed is 199 and it hit 161 on the mile...
Can I assume this CL65 can easily go to 240+? Or its limited somehow by its gearing?
But to answer your question, no a stock geared CL65/SL600 would never see 240 mph.
I was going to try to use a Bugatti Veyron as an example but its tire sizes are completely unique and I can't convert the diameter. Let's use a Ferrari Enzo instead. A Ferrari Enzo has a 4.10 rear gear, but also has relatively tall tires (345/35/19's= 28.51") and a tall 6th gear (.76). The Enzo's added advantage is its ability to spin to 8K RPM. This allows for the Enzo to attain a theoretical top speed of 218mph.
You can play around with tire sizes, gears on this useful website:
http://www.fatboyraceworks.com/gears...raph&Compare=1
Edit: For some reason the tire size keeps defaulting back to 23.44" instead of the 28.51" on the link above... oh well...
Tom
Last edited by TMC M5; Mar 31, 2010 at 11:58 AM.
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Real Cars
The Dodge Viper, for instance, has a very low 6th gear (mostly for MPGs) - which gives it a very high top speed, gear wise. However in stock form, the car actually will reach it's highest potential top speed in 5th.
-m
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SL55 AMG
Sunir not to be disrespectful but if by top speed you mean it's "geared top speed" that is not correct. Many cars cannot hit the top speed they are geared for typically because they simply do not have enough horsepower, and obviously as speed increases so does resistance.
The Dodge Viper, for instance, has a very low 6th gear (mostly for MPGs) - which gives it a very high top speed, gear wise. However in stock form, the car actually will reach it's highest potential top speed in 5th.
-m
The Dodge Viper, for instance, has a very low 6th gear (mostly for MPGs) - which gives it a very high top speed, gear wise. However in stock form, the car actually will reach it's highest potential top speed in 5th.
-m
thanks for pointing that out Marcus
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From: Maryland
'14 E63S & '14 Audi SQ5
Sunir not to be disrespectful but if by top speed you mean it's "geared top speed" that is not correct. Many cars cannot hit the top speed they are geared for typically because they simply do not have enough horsepower, and obviously as speed increases so does resistance.
The Dodge Viper, for instance, has a very low 6th gear (mostly for MPGs) - which gives it a very high top speed, gear wise. However in stock form, the car actually will reach it's highest potential top speed in 5th.
-m
The Dodge Viper, for instance, has a very low 6th gear (mostly for MPGs) - which gives it a very high top speed, gear wise. However in stock form, the car actually will reach it's highest potential top speed in 5th.
-m
) . I believe the car hit 208mph around an almost 5 mile oval. It could have gone faster but the car was too unstable. The Ferrari Enzo on the other hand...hit its 218mph top speed without any drama.I actually just found a video of the test:
http://www.rideschannel.com/componen...ube/video/7481
My apologies for going off topic...but I thought this was pretty interesting..
Tom
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Real Cars
What is funny is that at lunch I was checking out a news stand. I ran across an issue of Mopar magazine which had a top speed shootout between a an LMC '70 Cuda with a Viper twin-turbo V10 (1,500hp) against a stock Ferrari Enzo. The Cuda was running the standard T-56 gears with a 3.08 final drive (I think it's 5th gear is .50 ) . I believe the car hit 208mph around an almost 5 mile oval. It could have gone faster but the car was too unstable. The Ferrari Enzo on the other hand...hit its 218mph top speed without any drama.
I actually just found a video of the test:
http://www.rideschannel.com/componen...ube/video/7481
My apologies for going off topic...but I thought this was pretty interesting..
Tom
) . I believe the car hit 208mph around an almost 5 mile oval. It could have gone faster but the car was too unstable. The Ferrari Enzo on the other hand...hit its 218mph top speed without any drama.I actually just found a video of the test:
http://www.rideschannel.com/componen...ube/video/7481
My apologies for going off topic...but I thought this was pretty interesting..
Tom
While we are sharing funny stories... one of the scariest things I remember doing a high speed run years back happened in a Dodge Viper GTS. The car was heavily modified, and in spite of the rumble and grumble going through the gears, at 180mph the car makes a very loud and frightening POP noise. Why does it make that sound? At 180mph there is such a vacuum created behind the side view mirrors, that it actually pops them back into the folded position. I was not aware of this and man, hearing a loud, almost tire-pop like sound at 180mph is enough to make anyone check their pulse for a split second.
It was an "interesting" experience.
-m
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SL600 (1000 hp), Cayenne S, 996TT EVO GT750, F430 Spyder,A real Ford GT, 08 Gallardo Spyder
x
A stock tired SL600 has a theoretical top speed of 210 mph based on its 2.65 rear, .83 5th gear and 6K redline. It looks like the car is running on 305/25/20's out back. This only bumps the theoretical top speed to 211 mph. I'll assume that the car has enough power to be limited by its gearing. So are you saying you will hit 210+mph before the end of the mile.. if so let me say ....
Tom
Tom
Hmmm...210 in the mile...not sure about that one. I have a new found respect for what it takes to get these lead sleds (all 4600-4700 pounds) to 200. The 210 mark in the mile would take an insane amount of extra power but who knows.
As for top speed; The car has an amazing amount of power left at near 200 and we may (not sure yet, since a crate motor is 40k if we crack the block which is a real possibility at these numbers) raise the redline to 6500 which would allow us 228. I think, the car has enough power to hit that, given an extra mile....stay tuned.
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'14 E63S & '14 Audi SQ5
Tom I saw that video too, and it's a very good illustration of not only power, but the real engineering that goes into making a car capable of doing high speed. There are much more "reasonable" examples such as your average 150hp car, which gearing wise could hit a fairly high speed, but due to the lack of power would not be able to get there.
While we are sharing funny stories... one of the scariest things I remember doing a high speed run years back happened in a Dodge Viper GTS. The car was heavily modified, and in spite of the rumble and grumble going through the gears, at 180mph the car makes a very loud and frightening POP noise. Why does it make that sound? At 180mph there is such a vacuum created behind the side view mirrors, that it actually pops them back into the folded position. I was not aware of this and man, hearing a loud, almost tire-pop like sound at 180mph is enough to make anyone check their pulse for a split second.
It was an "interesting" experience.
-m
While we are sharing funny stories... one of the scariest things I remember doing a high speed run years back happened in a Dodge Viper GTS. The car was heavily modified, and in spite of the rumble and grumble going through the gears, at 180mph the car makes a very loud and frightening POP noise. Why does it make that sound? At 180mph there is such a vacuum created behind the side view mirrors, that it actually pops them back into the folded position. I was not aware of this and man, hearing a loud, almost tire-pop like sound at 180mph is enough to make anyone check their pulse for a split second.
It was an "interesting" experience.
-m
Tom
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Joined: Nov 2002
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From: Maryland
'14 E63S & '14 Audi SQ5
Hmmm...210 in the mile...not sure about that one. I have a new found respect for what it takes to get these lead sleds (all 4600-4700 pounds) to 200. The 210 mark in the mile would take an insane amount of extra power but who knows.
As for top speed; The car has an amazing amount of power left at near 200 and we may (not sure yet, since a crate motor is 40k if we crack the block which is a real possibility at these numbers) raise the redline to 6500 which would allow us 228. I think, the car has enough power to hit that, given an extra mile....stay tuned.
As for top speed; The car has an amazing amount of power left at near 200 and we may (not sure yet, since a crate motor is 40k if we crack the block which is a real possibility at these numbers) raise the redline to 6500 which would allow us 228. I think, the car has enough power to hit that, given an extra mile....stay tuned.
Maybe with the roll cage installed, you can pass the stupid tech inspection for the ECTA (East Coast Timing Assoc) and do the Loring event in Maine. That one has the 1.5 mile run.
Tom
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From: Ny
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whoa congrats that is very very impressive.
Mo who got close to 188 on a c63, from whats going around the W204 DADc63 is at 180.XX em i missing someone?
Mo who got close to 188 on a c63, from whats going around the W204 DADc63 is at 180.XX em i missing someone?
By the way, one of the modded C63s came very close to the 188 mph number.... 
