I sent this out yesterday but it appears to have found it's way into the e-mail black hole on our server. Apologies to anyone who has suffered through it twice.
Thanks to Eric Oster for the ratio data for microbuses. Here is the updated index.
VW Bus Relative Wear Index
Year | Top Gear | Final Drive | Engine Revs | Stroke | Piston Travel | Ratio | Ratio | /Mile | | /Mile ________________________________________________________________________ Micro | | | | | 1200 | 0.82 | 4.125 x 1.39 | 3719 | 64mm | 1571 ft. Micro | | | | | 1500 | 0.82 | 4.125 x 1.26 | 3371 | 69mm | 1525 ft. Micro | | | | | 1 ton | 0.82 | 4.375 x 1.26 | 3575 | 69mm | 1618 ft. | | | | | 68-71 | 0.82 | 5.375:1 | 3484 | 69mm | 1577 ft. 72-73.5 | 0.82 | 5.375:1 | 3484 | 66mm | 1509 ft. 73.5** | 0.89 | 5.375:1 | 3781 | 66mm | 1637 ft. 74-75 | 0.89 | 4.857:1 | 3416 | 66mm | 1479 ft. 76-79 | 0.82 | 4.857:1 | 3148 | 71mm | 1467 ft.
** From chassis # 2x3 2068 548
Hey, these numbers are almost all the same! Coincidence, or by design?
In an effort to BAIT you Vanagon and EV owners into opening that Bentley and mailing in ratio info I am going to SPECULATE that the lowest wear index #, down close to 1400 ft./mile will go to the 1.9 wasserleakers (wear index has nothing to do with head gasket life, sorry.) and that the highest, pushing 2000 ft/mile, will go to the willing little diesel. So, C'mon and prove me wrong! Send in the top gear ratio, the final drive ratio, the engine stroke and the tire size (if it's an EV)!
Thanks in advance! Dave Kautz dkautz@hpsidms1.sid.hp.com
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