Lotus engines and bike TB's

[Colin Goodall]

> Yeah, I was thinking about it two ways... assuming that my
> Internet calculator skills are sufficient to the task, a 2L
> engine that redlines at 6.8-7.2K (about where mine does/would)
> needs ~23036 CFM to feed it. The 1300, 12KRPM motocycle engine
> would need ~26327 CFM (These numbers are pulled from the net,
> and I didn't check the assumptions that went into them
...
> That was assuming identical volumetric efficiencies, and
> I'm not sure that is valid.

On many of the large displacement sport bikes they now employ some form of ram-
air induction which may very likely throw your assumptions off about flow rates.

Colin Goodall
goodall at magmacom.com

P.S.
   This is my first posting to the mailing list so forgive
   me if I am out of line ;-)