c55m8o
08-17-2005, 11:43 AM
I stumbled upon this while researching what manual transmissions I could use (thinking of Tremec TKO or a Richmond). Visit here :
http://www.richmondgear.com/01cartest.html
and download Patrick Glenn's CarTest 4.5 for DOS .
It has =all= necessary parameters to analyze performance for our C-classes built right in!
One thing I did notice though, it doesn't account for driveline losses adequately. Example:
I took the defaults for the '98 C43, and it said the C43 was doing 0 - 60 in 5.5 seconds. ...no way.
I then realized, I didn't take into account driver's weight, + weight of junk in the car. Adding that, I got to 5.8 seconds 0 - 60. That makes more sense, but honestly, still too quick. Leading me to surmise it's over optimistic (under-estimating) driveline losses from the tranni, weight of the wheels, loss due to intake/exhaust restrictions, intake heat, whatever.
...HOWEVER, aside from that, which can be tweaked to dial-in an accurate baseline ... once tweaked this program provides an incredible VISUAL analysis of how altering things such as transmission ratios, power and torque curves, etc., affect performance.
YA! :banana:
You can't imagine how long and hard I've been looking for a program like this ... that's free ... and here it is! I'm so happy, I think I'll pick up CarTest2000 for $35.
http://www.richmondgear.com/01cartest.html
and download Patrick Glenn's CarTest 4.5 for DOS .
It has =all= necessary parameters to analyze performance for our C-classes built right in!
One thing I did notice though, it doesn't account for driveline losses adequately. Example:
I took the defaults for the '98 C43, and it said the C43 was doing 0 - 60 in 5.5 seconds. ...no way.
I then realized, I didn't take into account driver's weight, + weight of junk in the car. Adding that, I got to 5.8 seconds 0 - 60. That makes more sense, but honestly, still too quick. Leading me to surmise it's over optimistic (under-estimating) driveline losses from the tranni, weight of the wheels, loss due to intake/exhaust restrictions, intake heat, whatever.
...HOWEVER, aside from that, which can be tweaked to dial-in an accurate baseline ... once tweaked this program provides an incredible VISUAL analysis of how altering things such as transmission ratios, power and torque curves, etc., affect performance.
YA! :banana:
You can't imagine how long and hard I've been looking for a program like this ... that's free ... and here it is! I'm so happy, I think I'll pick up CarTest2000 for $35.