Cregg :
The bypass valve is available from Magnuson products. Check out
http://www.magnusonproducts.com/bypass_valve.htm . It's not a hard
requirement anyway, it mostly reduces the gas mileage penalty for the
blower. I've heard it also causes some throttle lag. Magnuson also shows
a "4th generation" supercharger with the bypass valve built-in.
Looking at the photos, I'm pretty sure VIS made the air boxes (from 4"
square aluminum tubing), carb adapter and support bracket, and most likely
the idler pulley bracket (although it might be a modified off-the-shelf
item). The other stuff looks off the shelf to me.
There is a fair amount of information available on the Eaton site
http://www.eaton.com/supercharger/ and Magnuson site
http://www.magnusonproducts.com/ .
The basic idea is pretty straightforward, the hardest part is just getting
everything mounted, braced and linked. The carb just 'thinks' it is
feeding a somewhat larger engine, mixture and whatnot should be fine (for
modest amounts of boost). Carb size, while still a factor, is much less
important than on a naturally aspirated engine. Decide how much boost you
want to try for, then pick the 'charger to match that and your engine size.
The M62 looks like the only reasonable choice from Eaton, although a M45
or M90 might work with lots of over/underdrive. Fine tuning of the boost
amount is done by changing the size of the pulley.
Randall
On Wednesday, July 26, 2000 8:38 AM, Cregg Cowan [SMTP:cowan@erg.sri.com]
wrote:
>
> Is there a group/list of supercharger folks who could help us poor souls
> know where to start to engineer our own installation? In my naivete, the
> pictures from Kai (http://www.pil.net/~felix/supercharger/)
> make the project seem fairly do-able, except perhaps for the "Bypass
Valve
> Assembly." How many of these parts did Peter Boutcher manufacture (or
have
> manufactured)?
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