

| Subject: | Re: Engine to auto-tranny match and the Indy 500 |
| From: | Angus Macnab |
| Date: | Wed, 26 Aug 2009 09:24:05 -0700 |
Maybe this is the "secret project" that Bostig is working on... a tranny swap to complement the engine swap??? On Wed, Aug 26, 2009 at 9:17 AM, John Rodgers<inua@charter.net> wrote: > Marc Purdues recent issues over auto-tranny shifting in the mountains > got me to thinking about alternative engine/tranny combo's for the > Vanagons. I know we can do engine swaps, but it seems we are stuck > pretty much with the original trannies for our vans. As I recall Sudhir > did some work with bigger engines and found that more powerful and > torquey engines soon wiped out the trannies. So, with that in mind, it > appears to me there are limits in our engine/tranny combo's and the > tranny is the limiting factor. Granted, certain Porsche trannies will > fit, but they are extremely hard to come by. Something more readily > available would sure be nice. In my research I stumbled on the link > below which I found fascinating. Many of you already know about this I > expect but I did not. > > Some specifics on the Indy 500 cars > 1) All cars have the _same engine_ and the _same semi-automatic > transmission_. No exceptions. > 2) All cars have the same engine - a 650-hp, 3-l Honda V8 engine that > costs about $2.9 million per car. > 3) Imposed max engine RPM is 10,300 > 4) Life limit on each engine before overhaul is 1200 miles > 5) Tranny is a clutchless, six-speed, all-forward-gears, semi-automatic > transmission. > 6) Shifter paddle/lever is mounted on the steering wheel. > > Visit here for the complete scoop. > > http://electronicdesign.com/Articles/Index.cfm?AD=1&ArticleID=21089 > > Interesting stuff. And I wonder if and how such info could be applied to > our vans. Not likely to ever have that big engine, or go so fast - but > having some better options for better power train coupling would be nice. > > John Rodgers > 88 GL Driver >
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