I would not buy an Ellison. Even if you could they are no longer well supported. I have the Rotec which is a Ellison copy with much needed improvements. Having flown behind both I will say they work fine but have their own advantages, quirks and limitations.
Craig N886MJ (N51CW) > On 11/04/2022 3:36 PM CDT Jeff York via KRnet <krnet@list.krnet.org> wrote: > > > Ok, several cracks in my heads and really poor castings and pitting. > Who here can recommend a good set of heads for a 2180 VW ? I know Empi is > well known for street heads and there are so many variations put there Im a > bit confused as to exactly what heads to buy. > P.s. I think I'm going to buy an elison TB unless somebody has a better idea > thats convincing. > > Jeff > > Jeff > > > On Fri, Nov 4, 2022, 3:37 PM Jeff York <jeffyor...@gmail.com> wrote: > > This sure looks like a crack in one of my heads. I know its probably vague > > to ask for an opinion based on a photo. > > > > Jeff > > > > > > On Fri, Nov 4, 2022, 1:52 PM Jeff York <jeffyor...@gmail.com> wrote: > > > Mark, > > > > > > Thanks, the purpose of my messages is to come back up to speed on subject > > > matter that I have not addressed in several months or years by discussing > > > what I know, what I think I know and what I don't know and what I need to > > > know. > > > > > > I have never been happy with the Zenith carb and my concerns with trying > > > to set up a mixture control and do so safely. I spent a lot of time money > > > and effort recently building a 454/ 496 high torque at lower RPM stroker > > > motor for my vintage Airstream motorhome so I am also trying to switch > > > gears.Like most of my project, once I get into them they tend to go from > > > what I thought I needed to do to something much farther. > > > > > > For example, this started out as me being curious about my heads because > > > I had a spark plug that needed a helicoil to pull the heads to properly > > > install the coil and also feeling I probably wouldn't like what I saw > > > once I pulled the heads. Plus I had had a few temp issues that it seems > > > many experience with the VW so I was also concerned because of that. > > > > > > So, the one thing that led to another is now causing me to look into carb > > > options again. What is that saying in experimental projects ? 90% done, > > > 90% left to go. > > > > > > All the details being brought up by those direct to indirect is valuable > > > to me as I suspect it's valuable to others. So, if you or others feel you > > > might be drifting or digressing off subject, it is all very valuable to > > > me. > > > > > > Jeff > > > > > > > > > > > > On Fri, Nov 4, 2022 at 9:44 AM Mark Langford <m...@n56ml.com> wrote: > > > > To be clear, I use Curil-T as a sealant along the engine case half > > > > adjoining surfaces, and other critical metal to metal surfaces where > > > > there is no other gasket due to critical tolerances. That's what it's > > > > made for. I use Permatex Ultra Silicone (comes in gray, black, or red) > > > > between cylinder bases and the case "spigot" interface to prevent oil > > > > leaks at that joint. I don't put any kind of sealant between cylinders > > > > and heads, as it's futile, given the temperatures. Only if I need some > > > > kind of shimming to get the compression chamber volume in the right > > > > range do I use a copper head gasket, they are not needed otherwise, as > > > > the VW factory proved in 1940. > > > > > > > > As for carburetors, that was a tough nut to crack when I was getting > > > > ready to fly N56ML. I knew mixture control was important to proper > > > > running and efficiency, which is why I was going to use a Weber carb > > > > (since I had some and know how to tune them). Then I discovered the > > > > Ellison Throttle Body, and they are very hard to beat. I usually fly > > > > N891JF at about 145-150 mph. leaned way out, and burn around 3.3 > > > > gallons > > > > per hour. That's 44 mpg! People have a hard time believing that, but > > > > the spray bar with 50 tiny holes in it atomizes the fuel very well, > > > > and > > > > leads to very good efficiency, and low engine deposits. And N891JF is > > > > a > > > > very slick and aerodynamic KR2.... > > > > > > > > Mark Langford > > > > m...@n56ml.com > > > > http://www.n56ml.com > > > > Huntsville, AL > > > > > > > > > > > > -- > > > > KRnet mailing list > > > > KRnet@list.krnet.org > > > > https://list.krnet.org/mailman/listinfo/krnet > > > > > -- KRnet mailing list KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
