Performance on road, 80-120 km/h
Posted: Sat Jul 03, 2010 1:46 am
Here's some 80-120 results from Finnish alfa forum discussion. I thought this would be interesting for this forum also.
The values on green background are average wheel powers on the rpm range used. These are as accurate as the values used for calculation. Then the values on orange backround are estimated average engine powers, using for 20% losses. The last values with red backround are further estimations for engine peak power, estimating it's 10% over the average. These two, orange and especially red backround values have much higher uncertainty for sure. The bolded values are the most trusted stock car values.
The procedure goes like this
1. Look for as level road as possible
2. Make acceleration from 60 to 130 km/h (be sure not to broke a law..)
3. Start time at 80km/h and stop at 120km/h
4. Repeat it three times in both directions
5. If you didn't use a datalogger, then determine the driving speed error by GPS receiver in example
6. Scale your car weight in same condition, including the driver fuel all other parts
Then you can compare the time and weight to other cars on list. If I have nothing else to do, I might count your performance and add on the list someday.
The values on green background are average wheel powers on the rpm range used. These are as accurate as the values used for calculation. Then the values on orange backround are estimated average engine powers, using for 20% losses. The last values with red backround are further estimations for engine peak power, estimating it's 10% over the average. These two, orange and especially red backround values have much higher uncertainty for sure. The bolded values are the most trusted stock car values.
The procedure goes like this
1. Look for as level road as possible
2. Make acceleration from 60 to 130 km/h (be sure not to broke a law..)
3. Start time at 80km/h and stop at 120km/h
4. Repeat it three times in both directions
5. If you didn't use a datalogger, then determine the driving speed error by GPS receiver in example
6. Scale your car weight in same condition, including the driver fuel all other parts
Then you can compare the time and weight to other cars on list. If I have nothing else to do, I might count your performance and add on the list someday.