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RE: SAP 180 (Syssa Performance)
ED-So I guess I don't want the Hatori header. Does the Mac header have the proper rise from the Syssa to the Focus II ?
Dan |
RE: SAP 180 (Syssa Performance)
Bob-Thanks. Anyone know if the smaller pipe is good or is the 40 size the way to go ?
Dan |
RE: SAP 180 (Syssa Performance)
Anyone know if the smaller pipe is good or is the 40 size the way to go ? |
RE: SAP 180 (Syssa Performance)
Does the Mac header have the proper rise from the Syssa to the Focus II |
RE: SAP 180 (Syssa Performance)
Bob-I'm confused on the Macs header. The Tower ad says it is stock #4745, but when you look in the tech notes is says it is stock #4743. I think there is a different drop or rise with these different stock numbers, and what' the 2.25 in the Tower header description supposed to mean. Maybe it's just me, but I'm confused.
Dan |
RE: SAP 180 (Syssa Performance)
ORIGINAL: Gungadin Bob-I'm confused on the Macs header. The Tower ad says it is stock #4745, but when you look in the tech notes is says it is stock #4743. I think there is a different drop or rise with these different stock numbers, and what' the 2.25 in the Tower header description supposed to mean. Maybe it's just me, but I'm confused. Dan As to how it fits with the Focus II pipe tunnel, of course I don't know if it is exact, but my impression is that there is some leeway depending on what kind and length of coupler is employed. [link=http://www.rcuniverse.com/forum/fb.asp?m=7077081]Here is a link[/link] to some photos, and as you can see it's a pretty substantial drop. Also, the Macs header came with a short coupler, but I don't know if it is compatible with gas and I rather doubt that it is long enough. This is my first gasser w/a tuned pipe, so you may well know more than I do at this point. Anyway, I went ahead and ordered the plane directly from Piedmont so I should have it soon and will have a better idea then. $649 including shipping. |
RE: SAP 180 (Syssa Performance)
Hay Guys there is a ignition battery elamator so you only have to have 1 battery you so you save about 4oz look on TBM and search battery eliminator
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RE: SAP 180 (Syssa Performance)
Actually, we have an ignition battery eliminator that allows you to use any battery you would like for about the same price.
Ours has a built in voltage regulator and not just diodes for voltage drop so you can use any battery you want for the RX. Ours has exceptional high end filtering capacity AND opto isolation on the signal. We'll have some ready for sale in about 3 days... IBECs are quite handy and work well...you can kill the engine remotely with a switch on your transmitter, you get rid of the ignition battery (less weight), and there is only one battery to charge. Also, if you lose your rx or rx power, your engine will shut down, regardless of servo position. These are some of the advantages of using an IBEC. |
RE: SAP 180 (Syssa Performance)
ORIGINAL: cmoulder ORIGINAL: Gungadin Bob-I'm confused on the Macs header. The Tower ad says it is stock #4745, but when you look in the tech notes is says it is stock #4743. I think there is a different drop or rise with these different stock numbers, and what' the 2.25 in the Tower header description supposed to mean. Maybe it's just me, but I'm confused. Dan As to how it fits with the Focus II pipe tunnel, of course I don't know if it is exact, but my impression is that there is some leeway depending on what kind and length of coupler is employed. [link=http://www.rcuniverse.com/forum/fb.asp?m=7077081]Here is a link[/link] to some photos, and as you can see it's a pretty substantial drop. Also, the Macs header came with a short coupler, but I don't know if it is compatible with gas and I rather doubt that it is long enough. This is my first gasser w/a tuned pipe, so you may well know more than I do at this point. Anyway, I went ahead and ordered the plane directly from Piedmont so I should have it soon and will have a better idea then. $649 including shipping. Just a quick note regarding lengths of pipes/headers. There is no need to lengthen the set-up than what comes from the factory directly. The Skorepa pipe has the main reflector positioned at the correct distance such that the full length header will get you the necessary length to the reflector. In numbers, we used the 2 1/4" rise header and measured straight line from the plug to the main reflector....that distance was and currently is set at 27 1/8 to 27 1/4". No additonal piece was added to the header to make this length. From the outside, the header and pipe appear to be set at a length that is typical for a glow set-up...no changes in appearance from the outside. That's the main reason to get the 40G pipe (or 26G pipe). The inetrnals are already set to what we need A glow pipe would work just the same but would need to be lengthened such that the main reflector baffle is set at 27+" from the plug. Hope that clears it for you guys. In other words, with the gas pipe, you don't need to do anything special or extra. Just drop it into the tunnel; it will fit in practicall all planes that have a tunnel for a glow 2 stroke. Except, the coupler material which is silicone rubber, won't last long in this applcation. The main reason is lack of chemical compatibility but higher heat also plays a major role. I use and recommend a 2" wide teflon impregnated fiberglass tape with silicone adhesive backing. This has worked very well so far. I simply cut a 10-12" length of tape and wrap it around the header and pipe stem, adhesive down. I wrap it 3-4 X around the connection and secure the ends with plastic ties. Dodn't know the longevity of the material yet...too early in the testing. But If need thicker connection material, I would simply lay down a longer length. The material thickness is around .005" so 4 layesr of it is around 0.020" thick, very low profile. The material is from McMaster Carr. It is a bit pricey but you get a fairly large roll of it for the money you spend. regards Matt |
RE: SAP 180 (Syssa Performance)
ORIGINAL: tsyssa Actually, we have an ignition battery eliminator that allows you to use any battery you would like for about the same price. Ours has a built in voltage regulator and not just diodes for voltage drop so you can use any battery you want for the RX. Ours has exceptional high end filtering capacity AND opto isolation on the signal. We'll have some ready for sale in about 3 days... IBECs are quite handy and work well...you can kill the engine remotely with a switch on your transmitter, you get rid of the ignition battery (less weight), and there is only one battery to charge. Also, if you lose your rx or rx power, your engine will shut down, regardless of servo position. These are some of the advantages of using an IBEC. Have you had a chance to fly yours yet? In ground running, mine has worked flawlessly. Weather simply would no co-operate this weekend. Maybe next will be better and we can get some flying in. Matt |
RE: SAP 180 (Syssa Performance)
Great, thanks for the clarification!
I figured that normal silicone couplers wouldn't work because even the heat of 4-stroke glow can toast them fairly quickly if they aren't pretty far from the exhaust port. Okay, I did notice that coupler stuff in the pics earlier of your Enigma and was wondering what it was... as it appeared to be some sheet material lapped around the pipes a few times. I think I found the correct stuff at McMaster-Carr, [link=http://www.mcmaster.com/#76475a45/=4xl7wl]stock # 76475A45[/link] if anyone else wants to buy some. |
RE: SAP 180 (Syssa Performance)
ORIGINAL: cmoulder Great, thanks for the clarification! I figured that normal silicone couplers wouldn't work because even the heat of 4-stroke glow can toast them fairly quickly if they aren't pretty far from the exhaust port. Okay, I did notice that coupler stuff in the pics earlier of your Enigma and was wondering what it was... as it appeared to be some sheet material lapped around the pipes a few times. I think I found the correct stuff at McMaster-Carr, [link=http://www.mcmaster.com/#76475a45/=4xl7wl]stock # 76475A45[/link] if anyone else wants to buy some. Actually you want 76495A55 on page 3385. This is the 1 1/2" wide material which would work fine; and 5 yards is enough for at least 10 couplers. I had the 2" already on hand so that's what I used. It's the same material It';s a bit pricey as I said before but it is high performance stuff Matt |
RE: SAP 180 (Syssa Performance)
Hopefully tomorrow!!! If the snow melts enough...
Right now there is too much snow... |
RE: SAP 180 (Syssa Performance)
Actually you want 76495A55 on page 3385. |
RE: SAP 180 (Syssa Performance)
The Focus II was waiting for me last night when I got home.:)
No engine yet, but various parcels are still converging on my address, and the wing servos (Hitec 7775 digital MG coreless, low profile) are backordered and won't be available at Tower for a couple of weeks. Linkage doo-dads still enroute from Central Hobbies. As usual, the coupler tape from McMaster-Carr arrived so quickly I would swear they mailed it before I ordered it. So work can't begin in earnest yet anyway. The FG pipe tunnel supplied with the plane is not roomy enough for the ES40G, so I am going to have to hog out the fuse formers a bit, perhaps lengthening the channel as well, and line it with 1/16" balsa sheet, but it doesn't look too difficult. The FG tunnel is rather heavy, so the modification probably won't end up adding weight. |
RE: SAP 180 (Syssa Performance)
ORIGINAL: cmoulder The Focus II was waiting for me last night when I got home.:) No engine yet, but various parcels are still converging on my address, and the wing servos (Hitec 7775 digital MG coreless, low profile) are backordered and won't be available at Tower for a couple of weeks. Linkage doo-dads still enroute from Central Hobbies. As usual, the coupler tape from McMaster-Carr arrived so quickly I would swear they mailed it before I ordered it. So work can't begin in earnest yet anyway. The FG pipe tunnel supplied with the plane is not roomy enough for the ES40G, so I am going to have to hog out the fuse formers a bit, perhaps lengthening the channel as well, and line it with 1/16'' balsa sheet, but it doesn't look too difficult. The FG tunnel is rather heavy, so the modification probably won't end up adding weight. It is looking like snow our way this weekend which means no flying again. I am hoping that Ed and I will hook up and do some more testing on the engine. We want to get rpm with the Xoar props I laminated. We'll post results here if we get it done Glad to hear your Focus came and you are getting your materials together. I spoke with Todd Syssa a couple days ago and he explained that he should be able to catch up on all of his backorders now that his contract obligations have all been filled. The man does have a day job after all....I know that doesn't mean much to those who are still waiting for their engines with great anticipation. The only thing I am suggesting is just a little more patience BTW- the pipe mount I use is the simple and super functional Dave Brown type. It uses a single Lord mount with a cable tie holder screwed on. I use a glass filled servo arm as tie wrap holder. Cable ties go under the arm and around the pipe. The area on the pipe where the zip ties are installed is first lined with a short length of bicycle inner tube to keep the carbon wall from getting damaged Matt |
RE: SAP 180 (Syssa Performance)
Yep, no biggie.:eek:
I've got a couple of other smaller projects I am working on, so I'll have something to keep me busy during the big blizzard... between digging out cars. |
RE: SAP 180 (Syssa Performance)
Matt- I am very interested in the results from your engine/prop tests. Hope you will post the results and your general impressions on this engine suitability for pattern. I am very strongly considering going with the Focus II and Syssa 180 for my winter project, but it would be a un-tested combo, and I'm getting to old to be a pioneer.:D
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RE: SAP 180 (Syssa Performance)
BTW- the pipe mount I use is the simple and super functional Dave Brown type. It uses a single Lord mount with a cable tie holder screwed on. I use a glass filled servo arm as tie wrap holder. Cable ties go under the arm and around the pipe. The area on the pipe where the zip ties are installed is first lined with a short length of bicycle inner tube to keep the carbon wall from getting damaged I am assuming there is only one pipe mount about 75% of the way down the pipe, with the front end supported by the header and free to move with the engine vibrations. And I fully appreciate the notion that the delicate CF must be mounted carefully to prevent chafing the fibers. This is my first tuned pipe, so feel free to have a chuckle and correct me!:eek: |
RE: SAP 180 (Syssa Performance)
ORIGINAL: tsyssa Actually, we have an ignition battery eliminator that allows you to use any battery you would like for about the same price. Ours has a built in voltage regulator and not just diodes for voltage drop so you can use any battery you want for the RX. Ours has exceptional high end filtering capacity AND opto isolation on the signal. We'll have some ready for sale in about 3 days... IBECs are quite handy and work well...you can kill the engine remotely with a switch on your transmitter, you get rid of the ignition battery (less weight), and there is only one battery to charge. Also, if you lose your rx or rx power, your engine will shut down, regardless of servo position. These are some of the advantages of using an IBEC. I have a Fromeco 2600-mah Li-Ion and regulator that might do the trick, if it is considered a solid, safe practice. Is anybody else planning to go this route with the battery? I was thinking about a 1500-mah NiCd for Rx and 800-mah NiCd for the ignition. |
RE: SAP 180 (Syssa Performance)
Yeah Bob. What I want to know is what happens if the IBEC takes a dump. What impact does it have on the rest of the system ? Todd was telling me about this thing the other day on the phone. Could be great if it does not crash your airplane when or if it fails. Would not want it to have a effect on the Rx'r or servo's. If all that happens is the engine quits, then OK that's not so bad. Any other nonsense would not be so good.;)
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RE: SAP 180 (Syssa Performance)
Hmm... I would want to hear some reports first from actual users. Maybe the Syssa ignition is so efficient that it barely sips the mah's.
I definitely wouldn't do it with a Zenoah ignition - they draw about 2000 mah per hr! For engine shut-off, I make sure I've got the best throttle linkage I can muster, and adjust the servo/carb link properly for throttle cut with the servo. This necessary anyway, and it doesn't add any weight. It's like the idea of putting all your eggs in one basket, and then really keeping a close eye on that basket.:eek: I do this with all engines and I very rarely have a problem. |
RE: SAP 180 (Syssa Performance)
ORIGINAL: cmoulder BTW- the pipe mount I use is the simple and super functional Dave Brown type. It uses a single Lord mount with a cable tie holder screwed on. I use a glass filled servo arm as tie wrap holder. Cable ties go under the arm and around the pipe. The area on the pipe where the zip ties are installed is first lined with a short length of bicycle inner tube to keep the carbon wall from getting damaged I am assuming there is only one pipe mount about 75% of the way down the pipe, with the front end supported by the header and free to move with the engine vibrations. And I fully appreciate the notion that the delicate CF must be mounted carefully to prevent chafing the fibers. This is my first tuned pipe, so feel free to have a chuckle and correct me!:eek: This type of mounting is fairly forgiving. I mount mine in a single location, roughly at the balance point of the pipe. Plus or minus an inch is no problem. These pipes are so light they don't hardly transfer much load back to the header. I have never broken a 2 stroke header in 30+ years of pattern flying. Been mounting pipes this way probably the last 25 years or so and before that we had regular mufflers (noise re-directors). Matt |
RE: SAP 180 (Syssa Performance)
[quote]ORIGINAL: cmoulder ORIGINAL: tsyssa Actually, we have an ignition battery eliminator that allows you to use any battery you would like for about the same price. Ours has a built in voltage regulator and not just diodes for voltage drop so you can use any battery you want for the RX. Ours has exceptional high end filtering capacity AND opto isolation on the signal. We'll have some ready for sale in about 3 days... IBECs are quite handy and work well...you can kill the engine remotely with a switch on your transmitter, you get rid of the ignition battery (less weight), and there is only one battery to charge. Also, if you lose your rx or rx power, your engine will shut down, regardless of servo position. These are some of the advantages of using an IBEC. I have a Fromeco 2600-mah Li-Ion and regulator that might do the trick, if it is considered a solid, safe practice. Is anybody else planning to go this route with the battery? I was thinking about a 1500-mah NiCd for Rx and 800-mah NiCd for the ignition. [/quote Bob, I am looking at something and it looks promising but again, I won't discuss it until I've had a chance to work it out some. Matt |
RE: SAP 180 (Syssa Performance)
I have never broken a 2 stroke header in 30+ years of pattern flying. Been mounting pipes this way probably the last 25 years or so and before that we had regular mufflers (noise re-directors). |
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