[Spridgets] Mega Squirt?

[Hal Faulkner]

Glen, et al,
A good source for information assistance and somewhat ribald British Humour
is Turbo Minis:
 http://www.turbominis.co.uk/

Although their main point of interest is Turbocharged Minis and their
variations they don't discriminate against normally aspirated minis or
other A-series cars.
Quite a bit of discussion on turbocharging and a fair amount about EFI
conversions.  A large portion of that pertains directly to Mega Squirt all
versions and derivatives.

Hal

On Fri, Mar 30, 2018 at 7:52 AM, David Lieb via Spridgets <
spridgets at autox.team.net> wrote:

> Yeah, one of the quandaries of Spridget ownership for me is that the dual
> SUs are simultaneously sexy and stupid. Logically, a single HS6 makes much
> more sense. I just have a hard time convincing myself to do it. After all,
> there is no end to THAT slippery slope.
>
> On Fri, Mar 30, 2018, 09:34 Glen Byrns <grbyrns at gmail.com> wrote:
>
>> I see what you mean  with two supply points for charge.  With the
>> wet-turbo/single point injection, a constant supply of charge is equally
>> supplied at each open intake valve.
>> I'm using a 44lb Lucas injector that meters down to a nice smooth idle
>> and plenty of fuel for full on, bury the pedal 10 lb boost.  The intake
>> manifold is a relative simple log with no clever smoothing or branch-length
>> computations. Welded out of iron gas pipe if the truth be told.  Proof of
>> concept delivered when the stoplight goes green.
>>
>> One nice feature of Megasquirt is the ability to deal with the top end in
>> a way that preserves the pistons.  I've set up fuel and timing tables to
>> ramp up the enrichment and dial back the timing indexed to the boost.
>> Lacking a waste-gate, I drawn the line in the sand with both fuel and
>> timing tables.  As boost approaches 10 lbs or rpm hits 6.5k, Megasquirt
>> starts to drop spark for a "soft limit".  Finally a set of pistons with a
>> life measured in years instead of months!
>>
>> Glen
>>
>> > On Mar 30, 2018, at 6:50 AM, David Lieb <72spridget at gmail.com> wrote:
>> >
>> > Glen,
>> > You have significantly reduced the issue by going single-point. The
>> problem with dual-point, whether it be HS2 carbs or MegaSquirt, is that the
>> engine is doing two pulses on one branch, then two pulses on the other
>> branch. Makes it rather difficult to get the flow even or to deliver the
>> same mixture in the same amount to each of the four cylinders.
>> >
>>
>
> ------------------------
>
> spridgets at autox.team.net
>
> 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 at gmail.com
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/spridgets/attachments/20180330/3983472e/attachment.html>