Unrestricted Top Speeds
- Thread starter superfast
- 57 comments
- 11,592 views
Okay:
Jeep is owned by Chrysler which was a partner of Maserati which is owned by Fiat, which is partially owned by General Motors, which is a partner of Honda, which is a former partner of Rover, formerly owned by BMW, which also owned Land Rover, now owned by Ford, a partner of Volkswagen, which owns Bugatti.
I think that one's bulletproof.
Jeep is owned by Chrysler which was a partner of Maserati which is owned by Fiat, which is partially owned by General Motors, which is a partner of Honda, which is a former partner of Rover, formerly owned by BMW, which also owned Land Rover, now owned by Ford, a partner of Volkswagen, which owns Bugatti.
I think that one's bulletproof.
Toronado
Well that's just a verb tense issue - to my knowledge the statement still stands:
Jeep is owned by Chrysler which was a partner of Maserati which is owned by Fiat, which was partially owned by General Motors, which is a partner of Honda, which is a former partner of Rover, formerly owned by BMW, which also owned Land Rover, now owned by Ford, a partner of Volkswagen, which owns Bugatti.
Master_Yoda
(Banned)
- 4,010
And what does all this have to do with a cars unrestricted top speed?
What GTP thread has ever stayed on-topic for more than a page and a half?
!...
- 1,579
harrytuttleHa! It's six degrees of Daimler-Chrysler! We need a new web site: oracleofdcx.org
I used to do it as a bit of a party trick, except in our late-night AIM chat sessions. There really are just a few key cars that link everything: the Maserati TC links Chrysler to the rest of the automotive world through Maserati's connection to General Motors. The Mercury Villager and Nissan Quest's brief twinning links Nissan and Renault to Ford. And Ford's ownership of Land Rover links them to BMW, which also owned the brand. You can link Honda to General Motors if you know about their brief (and continuing) history, and Honda can be linked to Rover and then back to BMW, and hence to Ford. And the Volkswagen Sharan and Ford Galaxy provide the missing link between the rest of the car world and Volkswagen-Audi. I think I can link any mass-market automaker to any other one using these idiotic alliances (some of which produced one or two models).
- 1,382
- New Jersey
what year did they start to make limiters?
- 8,480
- P_Balance
In 1492, when Columbus sailed the ocean blue.
Acually, I think it would be somewhere in the 1990's, but I could be way off.
- 7,666
The difference is power. You go from an insane amount of power to an insane amount of power. MB should work on getting the weight down. The Sl is a bit tank-like. Besides, if I am not mistaken, the 6.5 (?) produces more power and torque than the 7.3. Could be those two turbos in the MB. The 7.3 might be able to produce more power if AMG does some work on it
GilesGuthrie
Staff Emeritus
- 11,038
- Edinburgh, UK
- CMDRTheDarkLord
You can calculate the theoretical top speed of any car. You need its power output and its Cd, plus some trick formula, to work out at what speed the wind resistance equals the car's power output. I believe that you can find such a formula on the net if you look hard enough.
Then, you need the car's max RPM, and the "MPH/1000rpm in top gear" figure. Multiply the engine speed in thousands by the MPH/1000rpm figure (i.e. 6750rpm, 28mph/1000rpm = 6.75*28 = 189mph). If this is lower than the drag=power speed above, then the constraining factor is the gearing. Otherwise it's the power output/drag.
It will probably be drag for anything less than about 600 bhp. Certainly, previous-gen M5s and RS6s were known to have severe engine maladies if you ran them at > 165mph for any length of time, indicating that they really don't like to run at full power against the aero wall.
Then, you need the car's max RPM, and the "MPH/1000rpm in top gear" figure. Multiply the engine speed in thousands by the MPH/1000rpm figure (i.e. 6750rpm, 28mph/1000rpm = 6.75*28 = 189mph). If this is lower than the drag=power speed above, then the constraining factor is the gearing. Otherwise it's the power output/drag.
It will probably be drag for anything less than about 600 bhp. Certainly, previous-gen M5s and RS6s were known to have severe engine maladies if you ran them at > 165mph for any length of time, indicating that they really don't like to run at full power against the aero wall.
McLaren
Premium
- 45,252
- Texas
Wouldn't that engine be somewhat the same as what is in the SL65 now? I sure don't see much of a difference.
Not really.
Back then, the 1995 SL73 AMG sported a 525Bhp 5-speed automatic (hasn't changed) with a 4.7 0-60 with a weight of 4519 lbs. The engine was just a regular V12.
Today, the SL65 AMG sports 612Bhp V12, but with the help of 2 turbos. I'm sure it weighs even more though now.
Pagani didn't really improve upon the old 7.3 engine though since I believe the 7.3 reaches only 555Bhp with a 0-60 only a second quicker. Though, this is better improvement over the 7.0 AMG engine used in the original Pagani models.
- 7,666
💡 If you are messing with the car's gearing, then a little physics comes to play.
(drag would become the limiting factor) Force=Massxacceleration.(F=MA) Work(torque)=ForcexDistance.(W=FD) Power(I assume HP)=Work/Time.(P=W/T) To find theoretical top speed, do some confusing calculations I wouldn't be able to figure out to find out where the force of resistance (friction from wind & moving parts) = the force the car's powerplant is producing.
If I am wrong please correct me. If any mathmagicians/physicists want to do this for a car that would be awesome as well.
- 21,286
- GR-MI-USA
- YSSMAN
- YSSMAN
...The car only has the poor cD when the car is in handeling mode, as I belive that in top-speed mode, the cD goes south of .30, but I'm not completely sure...
- 40,661
Um, 255 MPH. 💡
Keef
Premium
- 24,922
- Dayton, OH
- GTP_KeefRacer
- GTP Keef
I believe the Pontiac Solstice has a cD well north of .4, which is fricking terrible! No wonder it can't squeeze the extra ~20 mph that the Porsche Boxster can with its 30 fewer horses! That little roadster is as aerodynamic as my mom's Odyssey.
- 1,397
- 21,286
- GR-MI-USA
- YSSMAN
- YSSMAN
Actually you can thank Ferdinand Piëch and his "vision" of the "ultimate" supercar for that one. Given that he did the wrong thing by first designing and then engineering the car, the looks took first priority in the overall development. Afterwards it was calculated out that all of these gizmos and gadgets were needed to keep her going, and go north of 250 MPH.
