RE: Talk about new ideas and going "out of the box"
It makes me think, if your stranded alone on an island, and want to use a note in a bottle----it might be a little faster to get rescued. I bet it can flip any way it wants, and end up floating on it's feet.
Posted on: 11/27/2007 12:06 PM by Author "Earth Surfer" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=6680821

RE: would you spend $20 to run indoors nov.-mar.(1/12 hydro max size)
Their are indoor local motocross in the winter is in a couple of places in Michigan, and I hear they do well. I don't see why this would be any different---but I need room for larger boats. Thats probably not going to happen for me.
Posted on: 11/27/2007 12:03 PM by Author "Earth Surfer" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=6680796

RE: Favorite Tool
The best tool is not in the tool box or on the bench. It is your brain. Nice little mill there TopFuel. Have they got a CNC version of that bench top mill? I have not seen that company (or can find "otimum"-) , and I am in the market. Do you have a link to their site? Thank you.
Posted on: 11/27/2007 11:58 AM by Author "Earth Surfer" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=6680778

RE: What is the fastest?
I never had training wheels on my bicycle as a kid--I am going hydro and rigger in my first year. What good is a learning curve, if your not on it?
Posted on: 11/27/2007 11:45 AM by Author "Earth Surfer" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=6680729

RE: Question About The New Walbro Terminator Carb??
There are so many 12.7mm venturi Walbro carbs out there---it seems silly. Espically if your wide open all the time.
Posted on: 11/15/2007 11:33 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6628572

RE: Aluminum Gas boat Hull???
As far as weight goes, I bet many different materials could be comparable. I use to help make Titanium Mt. Bike frames, and it seemed like other companies using Cro-Mo, Allumn, and Carbon fiber were all around the same 3 to 3.5 lb weight-----if they were engineered well.
Posted on: 11/15/2007 11:29 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6628557

RE: New Gas Hydro
If it is a China boat--please stay away from it. There could be a lot of lead in the paint, which would contaminate the fish you eat, and kill all the frogs that the water birds eat. But of course, all that damage is not included in the price---now--is it? LOL Forgive me---but I hate China---for great reasons.
Posted on: 11/15/2007 11:23 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6628527

RE: The new American RC will be here soon!
Ohh Arkansas---beautifull looking place, but the 41st worst state to have a business located as far as taxes go. I gotta go the other direction (looking at South Dakota to move to in the future--which is #2--Wyoming is #1). I figure I can keep about 10% more of my money from those greedy suckers who own us. No state sales tax, and business taxes are very very low (they have a high sales tax, but surrounding states don't). Really nice looking area though. Good luck with everything. Doug @ ESP
Posted on: 11/6/2007 4:02 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6587195

RE: power recomendations for my new kat
[quote]ORIGINAL: sonicracing These are the types of power plants you are looking for to power that size cat to those speeds. Genesis catamaran, 6' long, bare hull weighs in at 15 pounds. RTR weight is 45 pounds with 2 inline Zenoah engines (4 engines) 70 mph + [link=http://sonicracingaustralia.com/v/QCnov07.wmv]Video from last Sunday. 30 MB, 4 minutes.[/link] [image]http://sonicracingaustralia.com/CFC9/cf001.JPG[/image] [image]http://sonicracingaustralia.com/CFC9/cf005.JPG[/image] Cheers, Danny. [/quote] If all those engines are piped and ported, that sould be over 20 some HP. Is there a hardware kit on the market for joining to engines together like that? Those are some nice boats you guys made. Thanks Doug
Posted on: 11/6/2007 3:52 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6587192

RE: Intake lengths
This is the Z-RC long manifold. http://www.davesmotors.com/store/product1648.html You can tune the length you want with this one (not sure how short you can get--but probably about stock length) by milling about 2mm at a time off of it, and trying it again (a dyno would be nice for this). I suspect though, that a longer than stock intake may lose some peak power.
Posted on: 10/23/2007 8:35 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6530073

RE: Trevor Simpson billet reed crankcases are now available.
[quote]ORIGINAL: Believe It has testing been done in a boat yet? How are the petals holding up to staying full throttle for a few minutes at a time? Cars are on & off the throttle... unlike we are racing boats...... [/quote] You might be suprised how long I hold my ped wide open going down the road, reving above 18,000 RPM until the next stop sign (if I feel like stopping). Trevor did a very good job with the reed geometry and the petal material comes from a world known pioneer in aftermarket reed design for the last 25 years or so. You might have to replace the reed petals about once a year (and that is a lot of use on a ped, compared to a boat), but that is about it. Design is everything, and the cylinder reeds you have heard about are not really a great geometry for reed valves. I hope to make some waves next year with reed case powered engines in hydros and a set up that works the best I can find for them. On the boat test note---probably not yet tested much yet. But I did just talk to Jeff from Insane on the phone the other day. He had a engine builder build him a reed case engine (I don't know who the builder is), and Jeff was pretty impressed with the power output in his boat. They only took it out once, and I am sure they will make improvements to the engine and set up. The reed cases are nice, and they will work well, but the trick will be finding a engine builder that knows how to build them, and a pipe that works best with them for your application. Yes, there is homework to do for the boats---but I think reed engines will get there just like every other two stroke industry has done. I have seen one damaged set of reed petals from a TS reed case in ped racing. the engine was used for a year, and it also ran on methonal, which can be a little tougher on the reed petal epoxy. There was a little bit of edge fraying, and the petals were replaced. My prediction. You will see reed case engines at some of the boat nationals next year. But it might take another year for people to get them really dialed in for the boats.
Posted on: 10/22/2007 9:04 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6525447

RE: WHY wont it work???? OR will it?
Two strokes will run in reverse. I am not sure about reversing the coil, but you can set the flyehweel by hand with a protractor or some way of measuring degrees. I had a child hood buddy with a Husky Motocross bike back in the day. I remember him starting his bike in a field, and letting out the clutch. It was funy to see his face when the wheel spun backwards, and roosted his front wheel. He broke a flywheel key, and the timing was good enough for a little kick back to start the engine in reverse. Your dad is incorrect sir---just this time though--OK? :) I don't know what other nuts and bolts you would have to fiddle with--but the two stroke engine will run backwards if the ignition timing is good.
Posted on: 10/22/2007 7:16 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6524927

RE: seaducer vs. insane
I am in the same boat your in. I hope to do some racing next summer in the hydro classes, and I just picked up a seaducer hydro. I won't get it in the water until spring, and I plan on picking up a insane rigger this winter. I hear all kinds of different opinions about how people like my seaducer, and I can't be sure what to believe until I run the thing Jerrys way---and get a lot of practice to get up the learning curve a bit. One thing I hear more than not though, is it corners very well. I have also heard it handles rough water pretty good, but not as much as the cornering. If the cornering is true, it might give you a direction to go for the set up. I am not sure what direction that is though---yet. :) I would not mind picking up the insane gen3 hydro. It is a nice looking hull, and it seems like it wins a good amount of races. I met Jeff of Insane, and I talked a lot with Jerry. I like both of those guys, and I think they could both get you going fast with their boats. They both seem very willing to help with set up if needed.
Posted on: 10/19/2007 8:58 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6510858

RE: best tuned pipe?
Pipes are suppose to be made to the porting and application. But not many people make their own pipes, and the rest try to match up porting with a good known pipe, or mod existing pipes. One good way to find a pipe for your moddified engine is to ask the person who modded it. May be he has tested a bunch of pipes with it, and has a good idea for you. Another way, but this requires some cooperation, is to ask friends who have different pipes, if you can borrow one for a day of testing. Take notes, use a stop watch--whatever. Pipes are expensive, and usually easy to bolt up, so if your a trust worthy fella, and you have good friends, you might be suprised at what pipe you end up choosing.
Posted on: 10/19/2007 8:43 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6510809

RE: Cable drive question
Thanks for the info. If I remember right, you buy the square end cable, and cut it to the length you need? I guess I am going to have to buy a small cut off wheel saw. Then, I imagine, you have to braze/solder the open end of the cable you just cut? I guess I have to buy a acetylene tourch too.
Posted on: 10/16/2007 3:31 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6498440

RE: Full mod Zenoah
We all build the best engines!!! Don't believe me?? Just ask us, we will tell you for sure. :) Big egos and pride, thats the way it is. The best thing to look for IMO---is race results.
Posted on: 10/16/2007 3:20 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6498396

Cable drive question
Hello. I see that most people seem to be running a round cable collet, and using a round cable end. I suspect they have to be pretty clean and tight so they don't slip. I also have seen square drive cable ends and collets, but I don't see a lot of people using them, even in high performance hydro racing. Why is that (if that is accurate)? Any body have any bad exp with square drive collets and cables, or other reasons why you have not used them? Thank you Doug ESP
Posted on: 10/12/2007 10:30 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6481044

RE: Help...my flex cable is stuck in my collet!!
A old machine shop trick for collets, with tools that like to spin in them. Before putting it back together, clean the collet, cable, and any mating sufraces that torque can go through with acetone or MEC. Brake cleaner spray should do it also. Your just getting rid of oild/dirt that can help it slip, but it seems to work pretty good on a bridgeport when you want to do some hogging.
Posted on: 10/12/2007 10:25 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6481027

RE: whipper snipper engines...
I don't think Zens are the best, but they are a lower cost engine for a higher performance engine. The Homies, and Sthil's are probably utility engines designed with lower RPM torque in mind for lawn care, where the Zen is designed for higher RPM power for RC usage. You won't see a company putting a RC engine in a leaf blower---but I might try one myself some day. My leaf blower is a real dog, and it pains me to use it in public. :)
Posted on: 10/12/2007 10:19 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6481006

RE: High reving engine
[quote]ORIGINAL: sheograth head kit motors are the work of the devil :( [/quote] Just the ones made in Taiwan. The TS head kits designed by TS, and made in the USA are awesome.
Posted on: 10/6/2007 11:15 AM by Author "Earth Surfer" in the forum "RC Giant Scale Cars"
http://www.rcuniverse.com/forum/fb.asp?m=6456447

RE: Buggy motors
[quote]ORIGINAL: Dave ESPI CY tend to have quality in materials and workmanship issues more often than Zenoah. [/quote] I can agree with that one for sure. I had about 8 CY engines here for a while, sitting on the shelf torn apart, ready for reed porting. I never got to the cylinder reed porting so I made 30.5cc engines out of them. The older cylinders cut very much differently than current cylinders I work on (all from the CY factory). The cutter was clogging up badly, and I usually don't have that problem. As a vet machinist, I know, if it cuts differently, it is a different alloy (which may explain some plating bonding problems we have had in the past). The thing I do like about CY is the fact they offer us stroked cranks and bigger bore cylinders. If Zen ever gets off their butt, and at least matches the bore and stroke sizes, I might stop building the CY. Right now, price (which is not that much cheaper than Zen) and the fact that they are bigger are the only two reasons why people buy a them. To the CY credit (which I think Go-Ped deserves the credit for getting on CY's butt about good plating), they have greatly improved their plating. I do see different plating from the CY factory, depending who they are building the engines for. Over 3 years ago, when SIKK and ADA were the only companies using the CY factory--the plating was totally horrible. It was more of the norm to only get a couple tanks of fuel from them before they were totally scratched up (I think that was a plating/ring compatibility or material problem). Go-Ped then starterd using the CY factory, and their first cylinders were even worse (peeling plating--probably a material consistancy problem of the cylinder and a bonding issue). But Go-Ped quickly improved the plating to be pretty good, in most cases. I don't see nearly as many issues, and we raced the last two and a half seasons with several racers in peds with no plating problems using the GP290 cylinder. I have seen two failures so far this year from customers. Make that three--I have a used engine here to poprt, and I can see through the exhaust that the cylinder is trashed---so I have to call him to tell him he is the lucky third. I really hate doing that--come on Zen--where is that 36mm bore? Thread starter, boats have not really used case reed engines yet, but they will because reed cases are now available for the pum parts, and from my experience, they run fantastic no matter what top end or crank I put on them. Personally, I am going with a 30.5cc air cooled reed case engine (baja cases) in a seaducer hydro, and hopefully I can prop up for a advantage in the open class heat racing. TS now offers the excellent reed cases for every RC top end, and I predict reed engines will make a pretty big splash in the heat racing. I showed a set of pum cases (assembled with a crank in them) to Carlos at CC racing, and Dave at M&D at the Celina nationals, and they both showed some good interest in them. When those guys start building good reed case engines, the local talent will buy--I bet. There should be quite a few reed engines at the Buttercup dune event later this month. I think O-bros will have a few cylinder reed engines there, and I know a couple of customers of mine will have TS reed case engines. There will probably be lots of vid on them here after that event.
Posted on: 10/6/2007 11:09 AM by Author "Earth Surfer" in the forum "RC Giant Scale Cars"
http://www.rcuniverse.com/forum/fb.asp?m=6456424

RE: header lenth
I just picked up a new pipe (need for speed) that has a header adjustment like yours. I am not sure I like the overlap of the header tube going into the pipe. I think I am going cut the tube 1/4" at a time, and test each cut, to get the tuned length that works best for the set up I am running. I* will probably buy a second header tube, in case my final cut went a bit to far. I am not sure, but I suspect the tube sticking into the pipe might effect the return wave duration or strength, and will most likely effect gas flow, so I want the header section cut off just past the last o-ring.
Posted on: 9/30/2007 11:11 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6431396

RE: nitro fuel with gas
It has been used on RC engines. But I don't know of anybody who really perfected it. Nitro methane is one of those oxygen carring fuels that makes more power, if you put more in, so you do need more fuel (alky or gas) to keep the fuel/air mixture safe. I never played with it myself, but some ped racer dads, I have heard, have used up to 10% using a Walbro 499 alky carb. that carb has a smaller venturi, and there is more needle adjsutment to add more fuel. I think, with the right carb work, it can be made to work well, but I don't know anybody that got to that point yet.
Posted on: 9/30/2007 11:04 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6431375

RE: Reed case
[quote]ORIGINAL: Believe It [quote]ORIGINAL: Dave ESPI Will this work on a Zenoah 260 for land use also ? I am verymuch interested in this for my Monster truck ! [/quote] Trevor Simpson already makes a case reed for RC stuff [/quote] Nice looking work Patrik. Yes "Believe it"--Trevor has been making reed cases for air cooled peds for almost 5 years (and a heli four bolt set soon after), and I have been building with them since they came out. He came out with a set for two bolt air cooled engines (which has a lot more choice of cylinders) about a year ago, to fit in the baja HPI buggy, and I just picked up a Heli set of cases he is out with now (and I have not built it yet either), which also fits all the Zen PUM engine hardware. I brought those cases with me (assembled with a crank in it) to the Ohio Celina nationals, and people seemed eager to look and work with them. I predict MD and CC racing will start building them next year. Personally, I think their performance will work on boats well, espically when they are ported and piped well. I also predict you will not be using the same prop you are using now. Looks like there are two guys building a nice set of cases now. Is it all hype? Well---I don't think so. I think we will all get them running well. DaveESPI, I would be happy to build you a TS reed case Baja cases (which puts the carb really close to stock position) for your truck. 4 wheel drive? I suggest a 27.2cc Zen top end, or a 30.5cc CY top end. I have built quite a few of them. Probably more than anybody but Trevor (not sure), and have been racing with them for my team for the last three years, so it is nothing new to me. I think the 30.5cc makes a bit more power, but the 27.2cc can be better quality sometimes. Shoot me a PM if your interested, and we can talk on the phone. Doug ESP
Posted on: 9/25/2007 3:04 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6412505

RE: questions about engine facts
Thats a dream for the RC engine. But parts are cheap. :)
Posted on: 9/20/2007 3:39 PM by Author "Earth Surfer" in the forum "RC Giant Scale Cars"
http://www.rcuniverse.com/forum/fb.asp?m=6393252

RE: sikk piston
The mark goes toward the exhaust side. Don't twist the cylinder when you slide it on the piston/ring. There is a little pin in the piston ring groove, on the intake side, that locates the ring end gap, so the ring does not spin when running. You must compress the ring with your fingers, with the ring end gap surrounding the locating pin---then it will slide on easily.
Posted on: 9/20/2007 3:24 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6393208

RE: Popped my Sikk 27cc top end kit
It sounds like you are using a 2 bolt air cooled engine. They can break from too much power, but I have always seen them broke on the intake side cylinder bolt. If you don't mind sacrificing a little top RPM for more mid range rip, you can pick up a 2mm crank from DDM (or use a 1mm stroked crank, with no cylinder gasket). Yep, this sounds strange so far, but DDM also has a boat load of new air cooled CY27cc top ends, that were taken off new eninges (the CY29cc engine, with a modified head for a 2mm stroke crank). I think he is selling these slightly used (they were run at the CY factory before shipping) complete top ends for about $15.00 a kit. For that cost, most people are buying 3 or 4 at a time. I could not find the kit on the DDM web site, but I know he has at least 100 of them right now, because I shipped them to him a bit over a week ago. I take off that top end to replace it with a 36mm top end to make a 30.5cc engine. You can call DDM at (866) 368-1441, and ask for Brad.
Posted on: 9/20/2007 7:44 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6391667

RE: GAS NATS 07 in Ohio...
Thanks for Kerrie e-mail and the information Ron. I hope I can find a good waterway, or I might be measuring thrust with a bathroom scale in the bath tub. :)
Posted on: 9/18/2007 12:21 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6383617

RE: GAS NATS 07 in Ohio...
[quote]ORIGINAL: Ron Olson The lady in pink is Kerri Carter, owner of Me Time Productions, there to do a DVD of the event. I ordered a copy of the IMPBA Internat's while trhere and picked up their Carolina Showdown. A little later on I'll upload some videos. The batteries went dead at the wrong time as in one a crash happened just as they decided to go. To make it easier on all of the forum sites, I'll post more on my Photo Bucket account with the vids. [/quote] Thanks again Ron. I had a great time there yesterday (Sat), and a blast meeting everybody I met. I met Kerri Carter, as she kept my chair warm in front of the Insane pits, while she was shooting the poop with one of the Insane guys. How can I contact her and/or her brother (I think the tall guy shooting in front of the CC racing pits, with the floppy hat, is her brother) for a copy of the DVD's (I guess it is $40.00 for two DVD disks full of racing). I tried to find them in the pits on my way out Sat after all the racing was done for Sat., but I failed. Also Ron, I am new to boating, and I see your in Michigan also. I should be recieving a pretty much RTR Seaducer hydro next week (Last I talked with Jerry, he needed one more pipe, and has to make sure it fits), Got any good water in your area? I would like to get some testing in before the snow flies (so I have all winter to think about what I messed up--hehe), and finding good water seems to be the hurdle for me right now. Thanks Ron What a great environment that national race was. I am looking forward to it next year. I also need to learn more about the clubs and racing in Michigan. I hear there are quite a few clubs here. Doug ESP
Posted on: 9/16/2007 1:55 PM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6374923

RE: CY SIKK 25.4cc Carb, WT 167 or WT-771
I am pretty sure the venturi size is 12.7mm in dia. That is pretty standard for the RC engines this size. There are a bunch of walbro carbs with this size venturi. Some have chokes, some don't. Some have primer bulbs, some don't. There is one the walbro 813 that even has a little accelerator pump for a bit more low RPM power. All I know of, for the G260 and the like, have the 12.7 venturi.
Posted on: 9/12/2007 10:07 AM by Author "Earth Surfer" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=6358233