| Author | Message | ||
| John Millard (Jmillard308)
New member Username: Jmillard308 Post Number: 24 Registered: 5-2003 |
"I just drove over 500 miles in my 550 in a day." A whole day? - 24 hours? av speed = 20.83 miles/ hour! Bart - Perhaps if you advise how many hours it took to travel the 500 miles, we could tell you what the average speed was  | ||
| Steven R. Rochlin (Enjoythemusic)
Member Username: Enjoythemusic Post Number: 499 Registered: 4-2002 |
GPS. Hard to get much more accurate than that. Enjoy the Drive, Steven "electrics geek" Rochlin | ||
| Mark Eberhardt (Me_k)
Member Username: Me_k Post Number: 592 Registered: 5-2002 |
An easiy way to check is to look at the mile markers on the side of the road. Just get the car to the speed you are interested in and hold it steady. When you pass a mile marker look at your watch. When you've gone 1 mile and see the next marker, look at the time again. Your true speed = distance/time. | ||
| David Feinberg (Fastradio2)
Junior Member Username: Fastradio2 Post Number: 224 Registered: 4-2002 |
Bart, Math aside for the moment...Borrow a GPS, and you'll know for sure. David | ||
| Ming Cheng (Onlinesys)
Member Username: Onlinesys Post Number: 303 Registered: 5-2002 |
My speedometer read 100miles(160km) per hour in sixth at around 3000-3200 rpm (94' 456GT). | ||
| Bart Duesler (The_bart)
Junior Member Username: The_bart Post Number: 159 Registered: 1-2003 |
Everything I have is stock or so I thought. I did not know there were opinions on the gear ratio of a 550 nor in the rear end. The wheels were replace in the recall some time back. The tires have 10,000 miles on them since the set was replace by the dealer at purchase. Michelin. | ||
| Mike Procopio (Pupz308)
Member Username: Pupz308 Post Number: 415 Registered: 10-2002 |
You need to provide gear ratios for sixth gear and a final drive ratio as well. You also need to know the precise DIAMETER of your rear wheels + tires together, e.g. wheel diameter + sidewall height. Then somebody can run the math. | ||
| Bart Duesler (The_bart)
Junior Member Username: The_bart Post Number: 153 Registered: 1-2003 |
I just drove over 500 miles in my 550 in a day. I tried to keep it in sixth at 3,500 rpm. I drove a very straight highway. My speedometer read between 95 & 98 miles per hour. There are technologists reading this who could tell me if my car�s speedometer is accurate. Well? |