Miata Mailing List: October 1997, Message #33
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From: 	"Apsilon" <apsilon@magna.com.au>

Subject: Re: Electric Supercharger, Twin Superchargers?

Date: 	Wed, 1 Oct 1997 04:20:55 +0000



G'Day all,



Interestingly there is a note in a car mag I read this month about another

electric supercharger. It's a Turbodyne electric supercharger. Apparently

it comes in three different sizes depending on the engine you intend to use

it with. No reports on how much extra power was made on the example car

although they did say it was losing out at the top end. It was a unit

designed for up to 2.5l engines and the engine it was fitted to was 2.5l so

maybe a larger unit would have been better suited. If anyones really

interested I could take a trip to the fitter this weekend, they're only

10min from where I live.



As for twin superchargers Sprintex do make a twin setup that is packaged as

a single unit. Apparently it's good for up to 1300bhp (and that's not a

mistake). The downside is the blower itself costs AUS$8500.



Matt.

Sprintex SC '94 Laguna Blue Clubman



----------

> From: Brian Goodwin <briang@adnc.com>

> To: Multiple recipients of list <miata@realbig.com>

> Subject: Electric Supercharger, Twin Superchargers?

> Date: Tuesday, September 30, 1997 11:34 PM

> 

> 

> Hi Everyone,

> 

> Heard rumblings for years about electric superchargers but according to

an

> ad in the new Sport Compact Car mag they are available now.  There is

even a

> picture and the kit looks very very simple.  While looking at the picture

it

> suddenly occurred to me why the kit is so simple.  You can mount the

thing

> almost anywhere.  You don't need to position it just right so you can run

> off exhaust like a turbo or get a belt properly aligned as with other

> superchargers. I imagine that cost should be very reasonable because all

the

> usual custom castings don't have to be made.

> 

> I am very curious as to how well the thing works.  

> 

> Moreover, all sorts of interesting possibilies for some sort of

sequential

> supercharger setup also occur to me.  Twin Superchargers!  Imagine, for

> example, one of the list Sebring owners who wants more power adds one of

> these.  The plumbing would be complicated but having a dual supercharger

> setup is certainly possible (perhaps something like the sequential trubo

> setup on the RX7).  Or perhaps simply use another actuator with some sort

of

> boost control rigged in.

> 

> The unit looks like a turbo with an electric motor on it.  I imagine it

> takes some "lag" time to spin it up.  Matched with something like a

sebring,

> you could have immediate power delivery and some extra punch on the top

end

> when the electric supercharger starts to deliver the extra cfm's.

Moreover,

> you could have the electric centrifugal unit blowing through an

intercooler.

> All sorts of interesting possibilities...

> 

> Brian Goodwin

> 

> 

> 

>