Andy,
You might want to consider the MegaSquirt ECU. Can be used to control
ignition, boost control and just about anything else, depending on your
sensors and just what you want. Glen Byrns who has been on this list but
whose posts I have not noticed lately has successfully used a MS to inject
his turbocharged Bugeye, and is using it to control the spark map as well,
driven by a Pertronix and firing through the distributor. If one were to use
a crank trigger the distributor could be dispensed with entirely and the
drive hole for the dizzy could be used for crankcase ventilation. The
latest iteration can control up to eight sequential injectors and can even
control individual cylinders firing coil-on-plug ignition. The MS does have
a fairly steep learning curve, however, because it is so flexible and is
based on open source software.
Hal
On Tue, May 24, 2011 at 3:05 AM, Andy Webster <a_d_webster@yahoo.com.au>wrote:
> Hi all and thanks for the responses,
> when I built the engine about 5K-7K miles ago, I put ARP fasteners all
> through
> the bottom end. I was thinking of a centre main strap, but couldn't see the
> point of grinding down the factory bearting cap to suit it. I figured that
> high RPM was the enemy here anyway, more than piston forces.
> It is a 72 midget engine, 1275cc thick flange, datsun 5 speed box behind
> it.
>
> Has a belt drive cam, so there is no breather in the front. (i take it off
> the mech fuel pump drive but that might need a rethink/reshape)
> I will be fitting a big chamber head (28cc), and if that proves not to be
> enough, deeper dish pistons.
> Steering column is not an issue for me. I'm in Australia.
> I know that getting the ignition to be correct will require some electronic
> boffinry.
> (I think "Jaycar" made a boost retard kit)
> But can getting it acceptable be done with a suitably recurved and retarded
> distributor?
>
> Slightly off topic, are those "Fidanza" flywheels any good?
>
> cheers,
>
> Andy
>
>
>
> --- On Tue, 24/5/11, derf <derf247@gmail.com> wrote:
>
> From: derf <derf247@gmail.com>
> Subject: Re: [Spridgets] A-series supercharger kits
> To: "WFO Herb" <froggi60@gmail.com>
> Cc: spridgets@autox.team.net
> Received: Tuesday, 24 May, 2011, 3:09 PM
>
> Unless you have a Miata. You can bolt a turbo onto a stock Miata
> motor and at least double the HP. The motors have the internals to
> handle the boost.
> You just need a snail and bigger injectors and engine management.
> I don't think anything but all out race motors will take 30+ pounds of
> boost but the older Miatas do fine up to 18 or so.
>
>
> >
> > Point is, as stated, build the engine first and you ought not have
> > problems...under modest boost.
> >
> > Herb
> Suggested annual donation $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/spridgets/a_d_webster@yahoo.com.au
> _______________________________________________
>
> Donate: http://www.team.net/donate.html
> Suggested annual donation $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/spridgets/frog.aye@gmail.com
_______________________________________________
Donate: http://www.team.net/donate.html
Suggested annual donation $12.75
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
|