Foxy, the rear rod plus its top and front minor helpers allowed Ms Peel with
an accidental hot rod engine set up, whip up on everything else I've
ever ridden or ridden against. Was fast enough to keep up with
900's to 130's mph, and way way ahead of them up to 100 mph
where some actual leaning required. Good enough I was just gonna
stick the ancient deadly Drouin centrigugal blower on the
750 Combat engine, then darn old Ducati came out with the 1198
so I horse traded up to a Steve Maney 920 Hi CR engine.
I've the original magazine reports of editor and Tom Drouin
having a go at it. Tom's and TC Christensen ads calim 10 PSI
on 750's but the editor only had balls to touch 8 lb while
Tom could load engine to 12+ PSI. So a belt drive snail blower's
boost is a relative quantity and ratio, not like positive
displacement blower with set boost ratio no mater the rpm
and throttle opening. BTW TC about spits when hearing
Tom Drouin name as feels Tom dropped the ball and cost
TC a bunch.
920cc/56 cid engine is ~20% bigger than a 750, so I figure
in general Drouin will deliver 20% less boost ~8 PSI in general.
Yet the idenical mate to my re-engineered Drouin
is on a stock 850 and pilot now used to it can load his
to 12 PSI, which means at will wheelie in 4th by just
a faster throttle roll on. All depends on how fast you
snap open throttle and still traction to load engine.
Here's photo of the Drouin before spiffed up & re-done and refinished
in rough black to smooth shiny. The Drouin suppled
Lake Injector had bad tendency to slick slide open d/t
the suction and has killed daddies of riders telling me what
to beware of. QuickSilver carbs are like Lack Injectors
with a fuel bowl idea circuit and mechanical cam push/pull
dual carb flat slide throttle. I'm starting with a 38 mm for
the low down help but figure as a draw through carb can
flow well over 200 cfm miture. 150 cfm is average per 100 hp.
Also a teaser special install. I've hand fulls of various blown Commando
as many ways to skin that cat. Though not all up to my needs
> one to one throttle to tire rpm, nothing at all to do with
regular traction concepts, extra throttle at Ms Peels rates
causes hesitation in acceleration or fast changes in lean
angle or aim around the CoG, gotta back off to hook up out of there,
usually right at point of least traction suddenly an insane sling shot.
http://rides.webshots.com/photo/2604371 ... 1179uosHfe
http://rides.webshots.com/photo/2609216 ... 1179QBWGRq
hobot