The 'spray bar' fuel delivery originated with the Ellison unit, A/O POSA-style units that use a solid tapered needle.
Both Rotec & Ellison have the fuel flow tied to airflow through the unit, so there is no puddling (a/o POSA derivatives, which did not address the issue because it wasn't much of an issue for a motorcycle installation, which is what POSAs originally were used for).... On 1/18/2012 11:41 AM, Lee Parker wrote: > One thing I like about the Rotec is that when you shut down the engine there > is on fuel leaking out the bottom of the throttle body, even if you don't > lean the mixture. You just hit the prime button on the regulator one time > and the engine is good to start for the rest of the day. Usually starts on > the second or third turn. My engine never ran so smooth. I like it so far. > I have not used the Ellison very much so I don't really know a lot about it. > I know Mark Lankford had one on his plane. The Rotec has 50 tiny holes in > the center bar that atomizes the fuel so you don't end up with droplets in > the cylinder or uneven fuel distribution to the cylinders. That probably is > the reason my EGTs are so close. > > > > ________________________________ > From: Rudi Venter<r...@rudix.servepics.com> > To: KRnet<kr...@mylist.net> > Sent: Wednesday, January 18, 2012 11:43 AM > Subject: KR> Rotec > > Interesting Steve! > > I did not realize the AeroCarb was a close copy of the EFS-2! I am > running an EFS-2 on my 2.4 VW but I am looking at upgrading it to an > EFS-3 as I think it might be restricting the airflow a bit at the moment. > > I wonder if the AeroCarb would be an option? I suppose I need to look at > throat diameter. Fitting an EFS-3 would be easier though as the linkages > would be similar to my current setup as shown here: > > http://zu-avb.hopto.org/ZS-VYZ/img_3378_std.jpg > > Fly safe, > Rudi > > On 1/18/2012 6:04 PM, STEVE bennett wrote: >> Just a small note, the Rotec carb, is not a fuel injection system, nor fuel >> injector when compared to what a modern day automotive fuel injection system >> is. It is a knock off of the Ellison series of carburetors. Their web site >> does say " fuel injection", if you read down the page a bit. When Monnett >> came out with his AeroCarb, a POSA knock off, is killed the sales of the >> EFS-2, so Ben Ellison ceased production of that particular carb. Ellison >> Fluid Systems still manufacutrers all the other carbs. >> >> Steve Bennett >> > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
