Looks like Bob identified the best deal.  These are probably what everyone should be running - can you say NEW!

Ken Powell Bryant, Arkansas 501-847-4721

-------------- Original message -------------- > Hi Jerry, > > Try here: > http://www.buyfordracing.com/shop/product_info.php?products_id=360 > > $259 for a set of 8. If you only want 4, I might be interested in the other > 4. Write me off list. > > I used to have this on the Wiki, but everything since March 8 has magically > dissapeared. > > Bob W. (More frequent backups on the agenda.) > > On Tue, 22 Mar 2005 18:29:39 -0500 > Jerry Hey wrote: > > > Thanks Ken, since I am building the fuel rail and injecting into the > > bell mouths the Ford's can be easily installed. Glad to hear the > > electrical hook up is the same. If I just say "Ford 42 lb injectors," > > are they properly identified? I'm tired of planning. This week end > > I will start to actually build the intake. Jerry > > > > > > > > > > > > On Tuesday, March 22, 2005, at 06:06 PM, kenpowell@comcast.net wrote: > > > > > Jerry, the Ford injectors are not directly compatible. Here are the > > > details: > > > ENGINE SIDE FUEL RAIL SIDE > > > Ford 0.55" 0.55 > > > Mazda 0.65 (with the FAT Mazda rubber ring) > > > 0.435 > > > Note that the electrical connector is the same (center spline > > > top/inside and center lower outside). So, the Ford injector will hook > > > up electrically but the fuel connectors must be different. > > > Ken Powell > > > Bryant, Arkansas > > > 501-847-4721 > > > > > > > > > -------------- Original message -------------- > > > > > > > Ken, are the Ford injectors interchangeable with the stock Mazda > > > > injectors as far as size, plug and so on? If so, do you have a part > > > > number? BTW sorry but there is no way you can run a p port at 7500 > > > > rpm and only get 225 hp. Can you accept 240? Jerry > > > > > > > > > > > > > > > > > > > > > > > > On Tuesday, March 22, 2005, at 03:48 PM, kenpowell@comcast.net wrote: > > > > > > > > > > > > But this graph was for a carburated engine so it really > > > > proves nothing. Besides, the engine only needs to be as rich as we > > > > want to run - you can't hurt the engine by running lean (I know, if > > > > you run it into the trees on a 100 F. day that will HURT it!!!). I > > > > have not seen any graphs showing power improvement beyond 0.6 on a NA > > > > engine and with very little to be gained by going beyond .55. If > > > > anyone can educate me differently please do so (no kidding, I'm > > > trying > > > > to learn). I'm planning on using 42 lb Ford injectors for my P-Port > > > > motor, if this isn't enough I want to know (planning on 225 HP at > > > 7500 > > > > RPM). > > > > > > > > Ken Powell > > > > > > > > Bryant, Arkansas > > > > > > > > 501-847-4721 > > > > > > > > > > > > > > > > > > > > -------------- Original message -------------- > > > > > > > > > > > > v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} > > > > w\:* {behavior:url(#default#VML);} .shape > > > > {behavior:url(#default#VML);} st1\:*{behavior:url(#default#ieooui) } > > > > > > > > Arial0000,0000,8080Rus > > > > ty, > > > > > > > > > > > > Arial0000,0000,8080Are > > > > you sure youÌre allowing yourself enough margin on the top end by > > > > using .55 bsfc. This chart (snitched from the other list) indicates > > > > that .55 is about right up to around 7500, but at 8000 rpm bsfc will > > > > be up around .60. What does that do to your hp numbers? > > > > > > > > > > > > > > > > Arial0000,0000,8080 > > > > smaller> > > > > > > > > > > > > Arial0000,0000,8080Mar > > > > k > > > > S. > > > > > > > > > > > > Arial0000,0000,8080 > > > > smaller> > > > > > > > > > > > >< > > > > > > > > > > > > > > > > Arial0000,0000,8080 > > > > smaller> > > > > > > > > > > > >< > > > > > > > > > > > Times New Roman > > > > > > > > > > > > > > > > > > > From:Rotary motors in > > > > aircraft [mailto:flyrotary@lancaironline.net] On Behalf > > > > OfRussell Duffy > > > > > > > > Sent: Tuesday, March 22, 2005 2:25 PM > > > > > > > > To: Rotary motors in aircraft > > > > > > > > Subject: [FlyRotary] Re: fuel injector size, and redrive > > > > losses > > > > > > > > > > > > Times New Roman > > > > > > > > > > > > Times New RomanRC Engineering's calcs show > > > > that you are good to 302 HP at 43 psi fuel pressure, .50 BSFC, and > > > > 100% duty cycle. Of course you can't run the injectors at 100% > > > > (except maybe briefly like a drag race, not applicable to aircraft). > > > > So at 80% duty cycle the 38 lb injectors should be good for 242 HP. > > > > Enjoy your idle!!! Your injectors are big enough unless you P-Port > > > > and turn at least 8000 RPM. > > > > > > > > > > > > > > > > ArialFFFF,0000,0000Hi > > > > Ken, > > > > > > > > > > > > Times New Roman > > > > > > > > > > > > ArialFFFF,0000,0000RC > > > > Engineering's calc shows the same as the fuel calculator that I > > > > posted the other day. Four 38 lb/hr injectors, at 80% duty cycle, .55 > > > > BSFC, should be good for about 220 HP at the flywheel. I imagine that > > > > will be enough for the current engine, but not by a wide margin. I > > > > plan to run this engine as high as 8000 if I can, though I'll be > > > > amazed if I can get beyond 7500. Don't need no stinkin' P-Port for > > > > these rpms :-) > > > > > > > > > > > > Times New Roman > > > > > > > > > > > > ArialFFFF,0000,0000On > > > > the fuel spreadsheet that I posted (stolen) the other day, it gives a > > > > HP figure for the flywheel, and rear wheels. The estimate for > > > > the power loss due to a manual trans and diff is 15% on this > > > > spreadsheet. Anyone know what this amounts to for our redrive, and > > > > prop? > > > > > > > > > > > > Times New Roman > > > > > > > > > > > > ArialFFFF,0000,0000Cheers, > > > > or> > > > > > > > > > > > > ArialFFFF,0000,0000Rusty > > > > (hoping Ed out types me) > > > > > > > > > > > > Times New Roman > > > > > > > > > > > > ArialFFFF,0000,0000 > > > > fontfamily> > > > > > > > > > > > > < > > > > > > > > -- > http://www.bob-white.com > N93BD - Rotary Powered BD-4 (real soon) > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html