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RE: Effect of a Scratch
I have seen a paint chip do the exact same kind of damage to a marine engine, only this motor wasnt so lucky. But no damage done to the head just a deep groove just like the one here.
Posted on: 9/16/2012 2:03 PM by Author "8MILLSNIPER007"
in the forum "Car Nitro & Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11230220
RE: For all you homelite fans!!!
Ok, cool. Thanks Eddie!
Posted on: 9/15/2012 2:57 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11229073
RE: For all you homelite fans!!!
Hey Eddie, thanks for that link! It does look like it would be really easy to adapt the aeromarine rudder to the XP-2 drive. Looks like you could just swap bearing blocks and would be good to go. Might have to shim the areomarine bearing block as it looks thinner but that is no biggie! The boat actually turns really good with the rudder it has now and I would imagine that as the speed increases the steering will only get more aggressive- I could be wrong about that, but seems to make sense to me. Now let me ask you guys this- when you have your water pick up in the rudder does it affect your water flow when you turn the boat? I was planning on milling one slot on both sides of the rudder both going to the same hole. I would imagine that you would want the slots offset (one side higher than the other) as the water will take the path of least resistance, I think if both slots were at the same level it might go in one side and out the other when turning or it might be fine.
Posted on: 9/14/2012 12:22 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11228540
RE: For all you homelite fans!!!
I wanted to go with a rudder pickup but they dont make one for the XP-2 drive. I figured I would try this first and then go to prop blast if I have to. Prop blast might be a pain with this drive though. I started to drill down the center of my rudder to do my own pickup but after I got through the bearing block the bit started to walk to the side, once that starts not much can be done to straighten it so I stopped drilling, still needed to go another 1-1/2" deeper then I could mill the pickups. I might buy another rudder or even make my own, it would be alot easier to drill the vertical hole before the angles are cut if you know what I mean.
Posted on: 9/13/2012 7:49 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11227886
RE: For all you homelite fans!!!
[quote]ORIGINAL: chipbreakr If you can't find a different pipe just put a section of pipe in it to get it out to what you need . You might be able to use copper couplers , with hose clamps . Just use use a hacksaw to cut 2 grooves in the end of the coupler , so it will tighen down on the pipe . [/quote] I am so use to measuring straight pipes, I forgot that I need to add in the complete length of the header, so my pipe is good, it is set at 12-7/8. Talked to the designer of the pipe and was told that if the pipe did not have enough water running through it that it would drop performance up to 30%. I definately had a water pick up issue. Not sure if you are familiar with the way Prather has their pick up, they put it in the right side trim tab. I scrapped that and went with a homemade pick up that I mounted on the transom about a 1/2 inch from the keel
Posted on: 9/13/2012 4:21 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11227682
RE: For all you homelite fans!!!
Talked with Tony from WHH. He recommends that I keep the prop subsurface and go down to a X470 prop... I might try raising the drive/strut up just about as high as it will go and try the 280 prop and see what happens. I guess the reason why the Prather hull does not like a surface drive is because the way the strakes are designed. They are a sharp V with no flat on the bottom of them, This keeps the hull down in the water and prevents it from riding on top. Down the road I might take and shave the strakes down so that they have a flat on the bottom and then try running a surface drive setup. I took the X482 and chucked it in the lathe and turned it down to 70mm, so basically this should be the same as a X470 am I right? Jim- I know you are one of the best when it comes to Homelites, so I will try running the prop up higher and see what happens- I am just afraid the boat will not handle right setup as a surface drive- no disrespect to you, if it was any other hull I would definately run surface drive. I start back to work tomorrow (friday) which is awesome, just wish the weather was about 60 deg. cooler. I will be working out in the middle of the desert where it is been getting into the 120s for awhile now! But it's good to be working again! Now I will be able to afford to buy myself a boat!
Posted on: 9/13/2012 3:35 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11227642
RE: Roots Type Supercharger
glennb- I am not familiar with the rs style power valve. I agree with you about the 80's- some great years for alot of things, I have a 87 YZ125 bike sitting in my garage- considered one of the best motocross engines ever built, love that bike. All of the powervalves of that era had issues with carbon build up but there are a few things you could do to the yamahas to help prevent the carbon from sticking and of course newer lubricants help in that department as well. I have owned them all currently still own a 85RM 125 and 87 CR 250 and the Yamaha power valve by far is the better one. I hope you are right about the 2 stroke making a comeback.
Posted on: 9/9/2012 5:00 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11223105
RE: Roots Type Supercharger
No you will still have a pulse, you dont really need a water pump to watercool the heads, you can run two water pick up lines from the rear of the boat, that would give you plenty of water flow
Posted on: 9/9/2012 12:56 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222476
RE: Roots Type Supercharger
[quote]ORIGINAL: Mike2735 8Mills - Didn't mean to come off as upset. I was not in any way. I had just acknowledged the fact the I had it wrong. The dimensions of my design might help: The rotors are 1 inch in diameter and 3 inches long. I have my blower pulley half the size of my crank pulley. That is why I said 2 to 1 ratio. I will change it to a 1 to 1 ratio. I also made it a twin carb setup to help with the leaning condition that will happen under boost. I plan to have an incremental throttle on the second carb that is adjustable. I dont think you will have a problem with a lean condition under boost, but your carb idea is a good idea! Thanks everybody for all their help and keep it coming. [/quote]
Posted on: 9/9/2012 12:03 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222462
RE: Roots Type Supercharger
[quote]ORIGINAL: Mike2735 Here is an exploded view of what I have planned. Let me know if you see anything wrong with my design. The rotors have a 120 degree twist like the Eaton supercharger. I don't know if this will work on such a small ap[lication. Thanks. Mike Moore Mike, I know your engine is a twin is it 50cc or 100cc? And what is the max rpm should be around 7,500- 10,000 of course you will need to either buy or make some tuned pipes for this engine which will increase it's performance and could possibly take this engine into an rpm range that could be higher than the case can handle. 10k + rpms is not really wanted for a prop driven vehicle as the prop blades are approaching or beyond the speed of sound, I suppose you would have to find the right prop that will keep your rpms down. A problem I see is the sound from the tuned pipes will easily dround out the whine from the blower. Two options, you could run some fairly restrictive mufflers on the pipes which would also give you more backpressure which would help hold your fresh charge in the cylinder as well. Option 2, you could run some type of quiet muffler maybe underwater? and put your butterfly or rotary valves in. One issue I think we are overlooking here is heat, you will be generating more heat than the original heads were designed for. The fact that it will be on an airboat is a huge plus as usally the first couple feet above water stays alot cooler than ambient air, or there is always the option of making watercooled heads for it (that would most likley be my choice). Anyways, without knowing the displacement of the blower I would guess that you would be pretty close running the blower at crankshaft speed. Once you have the blower built you can measure what rpms it's gonna take to make the boost you want, then make your pullies, maybe make a few different pullies to experiment with! [/quote]
Posted on: 9/8/2012 11:51 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222458
RE: Roots Type Supercharger
[quote]ORIGINAL: Mike2735 Thanks for your replies guys. I stand corrected. It is not a power valve. It is an exhaust cutoff valve. I did think about a barrel type valve like is in a rotary carb. I still have that design. That is similar to a butterfly valve. Your other point brings a new question. From looking at my design, can you suggest a drive ratio to accomplish 4 to 6 psi of boost. It is drawn with a 2 to 1 ratio for reference only. I think that will be a bit much but am not sure. [/quote] Mike- I apologize if I upset you with my last comment, just dont want there to be any confusion down the road. When the phrase power valve is used regarding 2 strokes most guys think of the KIPS or ATAC system (Kawasaki and Hondas power valves). Yes I will look at your drawings and see but it might be hard to tell. It is fairly easy to adjust the boost, just change your pulley sizes. I would think running a roots style blower at normal crankshaft speed would get you pretty close to 4-6 psi but that also depends on other factors, one being blower displacement and how efficent it will be.
Posted on: 9/8/2012 10:49 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222306
RE: For all you homelite fans!!!
My dad seems to think that it is just the angle of the prop, but I know it has more issues than that.
Posted on: 9/8/2012 7:45 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222318
RE: For all you homelite fans!!!
[quote]ORIGINAL: chipbreakr If you can't find a different pipe just put a section of pipe in it to get it out to what you need . You might be able to use copper couplers , with hose clamps . Just use use a hacksaw to cut 2 grooves in the end of the coupler , so it will tighen down on the pipe . [/quote] I plan on building one of your pipes soon, it has just been so darn hot over here, my garage gets really hot and I try to keep things civil with my neighbors so I dont want to be out there at 11pm cutting and grinding if you know what I mean! Jim and Eddie- Thank you both for your input, I appreciate it!
Posted on: 9/8/2012 7:39 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222311
RE: For all you homelite fans!!!
[quote]ORIGINAL: chipbreakr Raise it as far as you can , run it and if it improves , then make it surface drive , you will see a big difference . From the center of your pipe [ largest Dia.] to the face of your exhaust port . [measuring down the center of the pipe] should be around 11 1/2'' to 12 1/4'' [/quote] Yeah Jim, this pipe I have is about 12-1/2" total length! it's too short and that may be part of the reason I cant get the motor up on the pipe. With the 482 prop on it would launch just fine but as soon as I would try and throttle up it would fall flat on it's a$$ and die. I put the 280 prop on and at least the boat would run but I could only get about 5k rpms out of it, with that short of a pipe it probally wouldnt kick in until 8-10k rpm's. I was getting 16 mph then I tried moving the strut up as far as it would go and ran it and gained 4 more mph but then lost my water cooling so that ended the day! I will try and talk to the guy that I got the pipe from and see if he has any longer ones.
Posted on: 9/8/2012 7:18 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222290
RE: For all you homelite fans!!!
The Prather hull wouldnt of been my first choice, it was built for my dad, he is a big Prather fan as we use to race the smaller mono in the mid 80s-early 90s and he always wanted a gas powered boat. I traded a rc car for this boat so I think I did ok. I am not looking for a barn burner, just something he can go out and play with, these days his hand eye coordination isnt the best!
Posted on: 9/8/2012 5:26 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222174
RE: For all you homelite fans!!!
[quote]ORIGINAL: silverz98 here is my mono it is a north American Intruder it got bust up bad and to repair thats why that paint job is on it. wish it still looked like it did new. Sammy build great boats. [IMG]http://i8.photobucket.com/albums/a22/silverz98/hobbies/100_0011.jpg[/IMG] [IMG]http://i8.photobucket.com/albums/a22/silverz98/hobbies/100_0016.jpg[/IMG] [IMG]http://i8.photobucket.com/albums/a22/silverz98/hobbies/100_0015.jpg[/IMG] [IMG]http://i8.photobucket.com/albums/a22/silverz98/hobbies/100_0012.jpg[/IMG] [/quote] I like the North American RC mono too! I think the paint job yours has on it now looks pretty cool.
Posted on: 9/8/2012 5:17 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222167
RE: For all you homelite fans!!!
That was one of the main reasons I bought the XPII drive for it was so I could set it up as sub or surface drive easily. After Listening to alot of people tell me not to go surface and I had allready setup the boat for subsurface, I was able to talk to a couple guys that had the same boat only setup as surface drives and they said they loved them and they handled great, so now I dont know if I should just pull the flex shaft out close up the bottom and try it as surface or should I try moving the strut and whole drive unit up as far as I can and try that?
Posted on: 9/8/2012 5:02 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222156
RE: For all you homelite fans!!!
Yeah I was told NOT to set the Prather hull up as a subsurface drive because they didnt handle well that way, but I can still move the whole drive up quite abit. Going down the straights I noticed even part of the keel was in the water and entering a turn it would damm near run the nose underwater. It was pretty rough out but not that bad, no whitecaps.
Posted on: 9/8/2012 4:39 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222138
RE: For all you homelite fans!!!
[quote]ORIGINAL: Tidnab I think the length was 12 1/4'' or 12 1/2''.Might have to try a bigger or smaller prop or maybe a special cut one.I ran in the evening when all fisherman were gone,but the water was as smooth as glass. I might have gotten a little more speed on water with a little chop.I get my rings on Ebay,but you have to measure the thickness,to get the right one if you don't know the model of the engine.I ordered some and when they came they were the thin ones ,when I needed the thick ones. [/quote] My pipe is an older enforcer pipe that was designed for the homelites, but I didnt notice this until you guys mentioned it, the pipe is a 0 band and from the center of the exhaust to the band it is 9-1/2". Which would make it a high rpm pipe. It looks as if the guy I got it from cut both the front and some of the back off of it.
Posted on: 9/8/2012 4:26 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222119
RE: Roots Type Supercharger
[quote]ORIGINAL: Mike2735 I have finished designing what I think is an operational exhaust power valve. The way I am understanding this is: With the boost from the super charger, the exhaust gases with escape faster because of the pressure. If I set the timing of the power valve to close for the last half of the time that the piston is still open to the exhaust port, I should have time to add some boost to the charge that is entering the chamber. The power valve will open completely when the piston is above the exhaust port. Is my understanding correct?? I am posting an exploded view of my power valve design. Let me know what you think!! [/quote] Mike- I dont think this would be considered a power valve! A power valve on a 2 stroke changes the volume of the pipe to help in all ranges of rpms. It would be the same as if you had a straight tunde pipe and attached a sliding tube on the pipe so you could shorten and lengthen it at a moments notice. Basically a longer pipe will give you more low end and a shorter pipe would work better on the top end. So one would start off with the pipe long and as the rpms increased the pipe you would want to shorten the pipe. It's all about how long it takes the soundwave to return. A power valve just increases volume or decreases it depending on the rpms of the engine. Also- The exhaust valve you have drawen up looks good, but I might suggest going with a butterfly valve instead as it could be moved much faster, that being said- if you are only planning on running 4-6 psi of boost, the soundwave from the tuned pipe might just be enough to hold your fresh charge where it needs to be, You might be surprised!
Posted on: 9/8/2012 3:36 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222071
RE: For all you homelite fans!!!
[quote]ORIGINAL: silverz98 hmmm, what kind of pipe length you using? all the home lights i ran 25 or 30 all ways ran 482 most stock and pitched up. mono with moded 30 and canister would run 48 49mph all day. and with a dry tuned pipe 54-56 mph. same motor is a the extra wide f41 stryker cat went 63mph. if only i could find new rings for my homme's, as the years have went one my best motor has slowed down some. last time out with canister muffler she run 45. and with pipe 52. she has alot of racing hours and even more fun hours on her [/quote] Is that 482 with a surface drive or a subsurface? I am running a subsurface. Sorry, just noticed your photos! I am sure I can get alot more speed out of her, I just have to get the boat up out of the water. I'm really bummed the video of it didnt come out as I am sure you guys could of helped me out alot.
Posted on: 9/8/2012 2:58 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222043
RE: For all you homelite fans!!!
Well, we took the boat today for its first run. Right away we found out the 482 prop is too big as the boat would die if you gave it throttle so I put a 280 on it and it was better. I couldnt get the motor up on the pipe but I dont think the 280 prop is too big because I noticed that the boat was running really low in the water. When I would turn the bow would be really close to going under so I moved the prop up a little bit and it seemed to help a little bit but still wouldnt get on the pipe. My son was shooting video- or at least he was suppose to be but for some reason the camera didnt work? After moving the prop up, I noticed I no longer had water coming out my exhaust on the saw's but I did when I would turn, I need to move my water pickup down a little further I guess. I think I need to move the whole strut up some, CG wise it seemed pretty good it was just the whole boat was sitting really low in the water. I wish the video came out so I could get everyones opinion on what needs to be done... All in all it wasnt a bad first run, wasnt great either but it could of been much worse. It was really choppy and windy out as well, I brought my 31 inch and my heatwave but it was too rough to run them. The motor sounded good, cant wait to see what she will do when I can get it on the pipe!
Posted on: 9/7/2012 12:08 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11220395
RE: Roots Type Supercharger
I totally get it Mike- I think your drawings look good, not too sure the gains of having a radical curve on your vanes would be worth all the trouble? The teflon wipers are a must! Looking good! You might be better off running an exhaust throttle on it, too soon to tell
Posted on: 9/6/2012 4:21 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11220012
RE: Roots Type Supercharger
Mike, I have quite a few larger sized end mills and lathe bits along with numerous other tool and die tools if you are interested? They are too big for my machines and I dont plan on ever getting larger machines.
Posted on: 9/6/2012 1:52 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11219219
RE: Roots Type Supercharger
Hey mike, Glenn does make a good point about using a fourstroke- I almost mentioned it a few days back, but I read that you had already had the 50cc 2 stroke. I would be a breeze to boost a 4 stroke, but then again maybe you are looking for a challenge and that is why you want to go with a two stroke. I am interested in viewing your solidworks drawings. If you do some searching on google you will find others that have force fed two strokes with some sucess, but usally using turbos as they are free power.
Posted on: 9/6/2012 1:45 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11219217
RE: Roots Type Supercharger
[quote]ORIGINAL: glennb2006 If you are going to go to the trouble of making a supercharger (a massive undertaking), why not try and fit it to one of the proprietry available four stroke engines that are around? Thinking one of the Honda GX series or similar. If you are able to make a supercharger, then the engineering required to modify the engine to handle the supercharger would be a (relative) walk in the park. I would like to see and hear one running. Om the subject a few posts up on power valves, I do know of an experimental system in existance that alters the tuned pipe length on a slip coupling as revs increase, and I know the SAW runners use water injection at lower revs to fool the engine into thinking the pipe is longer to get a little more low end power to get the big props turning, the water is knocked off when the boat is moving fast to then simulate the shorter pipe and restore the tune for the max revs. Good luck in whatever you do though. Glenn [/quote] Glenn- I have seen simular done on nitro boats but without the water. Seen one that had a adjustable pipe, and a 3rd channel mixture control. Both the pipe and the mixture control workeed together, I am assuming as the turn would approach the pipe would lengthen and fatten the needle up for good power out of the turn then on the saw shorten the pipe and lean her down! I could see that being a nightmare to get setup and working right!
Posted on: 9/6/2012 1:37 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11219211
RE: Roots Type Supercharger
Your right, I apoligize!
Posted on: 9/5/2012 8:39 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11218274
RE: Roots Type Supercharger
Mike, by the looks of things-(you like guns, you drive a chevy and you like to modify engines for your own reasons) I think we will get along just great!!! LoL....I have about 12 rifles and double that in handguns. I also do enjoy building my own rifles and handguns. I love long range shooting be it with a rifle or handgun (600 + for the rifles). A few of my favorites are a 6mm 284 wildcat, 22" barrel, bushmaster lower, nightforce NXS rectile. She is hard on barrels. Ive got a few rifles that my grandfather brought back from WWII that I have turned into benchrest rifles as well. 8mm Gewher sniper that has had alot of work done to it and is a sweet shooter. 6mm Lee Navy Rifle straight pull- if you know about rifles you know how rare these are! And He also brought me home a 8mm Lebel that has been cut down for French saddle gun, although I couldnt imagine shooting it from horseback as it would probally knock you off. The rifle is so light it has a brutal recoil, but very accurate for a French gun!! I reload for every firearm I own- it's just so much cheaper and the only way to get excellent accuracy at 600+ yards. That is a pretty impressive rifle you got there, pretty flat shooting for 7mm! Anyways, Back on subject, I would love to see you SoildWorks drawings when they are finished! With a low pressure boost you might be able to get away with no exhaust valve!
Posted on: 9/5/2012 1:18 AM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11217995
RE: Roots Type Supercharger
I understand your reasoning completly Mike... And You are more than welcome to pm me or even ask on here if you want more than one opinion. I have been working with 2 strokes for 28 years now from big detriot diesels to 25cc homelites and even our little nitro burners. I do not pretend to know everything about them as I am still learning new things everyday! There is no greater sound than the whine of a roots style blower, but I am afraid your two stroke tuned pipe might kinda drowned out the blower whine!! One thing to remember at wide open throttle and full boost it takes over 1,000 horsies just to turn the blower on a top fuel engine, now obviously if you tried to put that amount of boost to our little mills the cylinder would part ways with the block instantious- but what a show it would make!! So what type engine are you planning on using and what kind of baseline boost are you shooting for? I have done some testing with running a valve in the exhaust system, so if you have any questions please ask! Good luck Mike and have lots of fun!
Posted on: 9/4/2012 8:44 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11217819
RE: Roots Type Supercharger
Mike- The sound waves from the tuned pipe will help hold some of your boost in but I dont know how much boost you are shooting for? I can tell you this much, you would be far better off using a turbo as it is free power. A supercharger has to be turned by the engine itself and like Jackal said the extra power the blower would make would be used up by turning the blower. Jakcal, I am also just as surprised as you are about none of the smaller engine manufactors have not developed a version of a power valve. This would show huge gains across the board and it would also allow the user to adjust where his powerband starts and peaks without changing pipes. On the downside, it would add weight and bulk to the engine.
Posted on: 9/4/2012 2:49 PM by Author "8MILLSNIPER007"
in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11217439
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