Mark wrote: > Given the anomalies with the reported 65 mph data that part should > probably be disregarded. The disparity of the reported engine rpm at 65 > in 4th as 3400 in one part of the results versus 3150 in another is a > big red flag. If that "65" test was really at 3150 then it was closer to > 60 mph and that explains why there was such a large disparity in the > data comparing 3rd and 4th gear. It appears possible that the 3rd gear > 65 mph tests were done at a higher road speed than the 4th gear tests. > And of course that TPS anomaly "confirms" this. As I said in my post, I wouldn't start a tuning company based on these results. There is a big discrepacy between RPMs in Nevada and in Colorado. Something must be wrong, probably me. Dennis kindly pointed out exactly what the RPMs should be. 3632, 3356! Of course, he must have hawk eyes. At 69 I have bear eyes. The markings on my tach are 200 RPM, so it is a feat to guess an RPM down to 50, I think. Of course, the Scan Gauge could display RPM--and also speed, but it only displays 4 things. Besides my tach has the Small Car modification and so may have some calibration error that I didn't adjust out. A better test would be a 5 miles section of very flat road-- and no wind. Some wind came up on my last "back". Look at the raw data! There is a section like that near Rifle, Colorado, that I'll be traversing in a few weeks. Maybe, I'll, nah.... Just consider this a "proof of concept"--what can be done with OBD II and a Scan Gauge. Eat your hearts out, you 2.1 waterboxers!! ;-) Richard |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.