REFLECTOR: Franklin PZL fuel pump

[Brian Michalk]

I removed the stock intake manifolds, and fabricated my own out of 1.75" 
stainless.  The EFI runs stronger static than an identical carbureted 
Franklin.

The injector ports are as close as I could get them to the intake 
valves.  The timing is late -- after the exhaust port closes.  I'm also 
running at 45PSI fuel rail pressure in order to get good atomization.

Ken C. Baker wrote:
> Ronnie,
>  
> The guys at AirFlow actually built the Fuel Injection system that 
> we're using. They were able to take a look at the Franklin drawings 
> fuel consumption and determine that one of their off-the-shelf O-540 
> systems would fit the bill. Wonderful folks to work with. It 
> does require a special fuel pump though for the higher delivery pressures.
>  
> As well - Duane tried a very similar bendix injection system on a 
> Franklin years ago, and was never able to produce the same full static 
> RPM as when it was carbureted. The problem is that the natural point 
> in the Franklin engine for the injector port is on the primer-holes on 
> the intake rails - and this leads to uneven fuel distribution. We 
> think that we can do better this time by machining a 'standpipe' 
> injector port for a more direct injection path. 
>  
> The only guy I know of who has successfully fuel injected a Franklin 
> and seen its full potential is a guy named Harold Peck - who developed 
> jigs for machining injector ports directly onto the cylinders. I 
> believe that he did the work on Jim Powell's Velocity.
>  
> -Ken Baker
> kenb at velocityaircraft.com <mailto:kenb at velocityaircraft.com>
>
> ------------------------------------------------------------------------
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] 
> *On Behalf Of *Ron Brown
> *Sent:* Thursday, May 01, 2008 2:12 PM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* Re: REFLECTOR: Franklin PZL fuel pump
>
> Mike,
>  
> Why wait?
>  
> I bet Don Rivera and the folks at Air Flow Performance 
> www.airflowperformance.com <http://www.airflowperformance.com> can 
> help you build a system for your Franklin.  They build systems for 
> sports cars, racing boats, custom engines, stunt AC as well as 
> Lycomings etc......
>  
> Its worth a phone call - they can tell if it can be done - or why you 
> wouldn't want to.  *They know their stuff!!!*
>  
> Ronnie
>  
> ----- Original Message -----
>
>     *From:* Michael Watson <mailto:mikewatsspg at gmail.com>
>     *To:* Reflector <mailto:reflector at tvbf.org>
>     *Sent:* Thursday, May 01, 2008 12:52 PM
>     *Subject:* REFLECTOR: Franklin PZL fuel pump
>
>     Ken,
>
>     At this year's Sun n Fun there was a franklin booth on the main drag
>     south west of your location. I met Greg Lucas there and he
>     introduced me
>     to a gentleman from Poland (his name slipped me,(age you know)).
>     He said that he represented the new owners of  Franklin  Engines, and
>     that they are almost ready to restart production on the new fuel
>     injected
>     350CIR engines. The only thing holding them up is the final
>     approval of
>     a new crankshaft.
>
>     He (the guy from Poland) said their priority right now is to
>     produce enough
>     spare parts to support the installed fleet. If you check with Greg
>     (405-268-3925)
>     he may be able to put you in touch with the factory guy, which may
>     be able
>     to supply you with the parts you need.
>
>     When the new engine is released, I intend to retrofit mine over to
>     fuel injection.
>
>
>     -- 
>     Mike W.
>     1997 Velocity Elite RG
>     Franklin /IVO Electric CS
>
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