>
>> I had to adjust a few things based on Don
Dunbar's
>> dimensions.
>> This manifold layout is just about the only way
to
>> get the
>> proper length for the runner tubes and still keep
>> everything
>> under the top of the cowl. We will shoot the fuel
>> in from the trumpet end. BTW the RX8 injectors
are
>> much
>> easier to use for a p-port as they are only 5/8th
of
>> an inch
>> in diameter. Two side by side can be on 3/4
inches
>> centers
>> rather than the one inch centers required by the
>> Nippon Denso (Mazda)
>> and MSD (GM) injectors.
>> Paul Lamar
>
> Paul,
>
> That drawing looks great. I've been trying to get
the
> dimensions of the cowl from Mustang Aero and the
> Mustang group without success. The cowl itself is
not
> on any of the plans but the dimensions you have
seem
> to be the best so far.
>
> The only problem we have is that directly behind
the
> firewall we have the main fuel tank. In this case,
the
> slide throttle is not a direct shot unless we can
> build additional linkage.....
>
> I'm also going to talk with James Aircraft and see
if
> they would be interested in adapting their Mustang
II
> cowl with their alternative cowl for this
application.
> I think your drawing should be a big help too.
>
> Mark
>
> I don't think a linkage would be a big problem.
> You could use an ordinary push pull throttle cable
> or a rocking beam. All we need is two inches of
> slide travel. Move the throttle over and down to a
center tunnel
> on the right like an airliner or off to the left
like
> a J3 Piper Cub.
>
> Let me know if Will James needs section curves to
build a cowl.
> I can do several iterations until every one is
happy.
> Also Will, any section curve spacing is possible.
What ever you
> need to build a buck.
>
> Paul Lamar

Mark,  assuming your fuel tank is aluminum, you can
install a tube
through it for the throttle.  It is done all the
time on Tailwinds.
Also,  I have already built an intake similar to
what you are
discussing with bell mouth injection.  The fuel rail
will be complete
next week.  I will send a pic.  Maybe something
there  you can use.
Jerry

P.S.  one man's opinion but I would not build an
intake with[out] a filter.
That goes for ram air too.


I think Jerry means without a filter.

Paul Lamar

Jerry/Paul,

I think a straight through might work (the tank is
aluminum) I'll need to take a look and see where on
the panel this might exit.

I like the idea of a linkage that leads down to a
throttle quadrant (this was our plan anyway). I do
like the idea of a throttle off to the left (haven't
seen the Cub but imagine this is like a Citabria) but
imagine the guy in the right seat might get anxious...

If we can't get the MSD injectors on the intake then
I'll try and get hold of some RX8's and eBay the MSD
ones..

Mark

Mark hold off on buying the RX8 injectors. I have a couple to test.
I need to know exactly how much fuel they can flow.

In the mean time no problem getting the MSD injectors on the
intake and I think we should go with them for now. They are
a known quantity.

Paul Lamar

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