RE: For all you homelite fans!!!
Tony knows his stuff , try what you are talking about, if it improves and doesn't have any handling issues, then I would go surface drive . Where you are running a Homelite , it is somewhat heavier, so you might not have the handling issues like you would with a zenoah .
Posted on: 9/13/2012 4:04 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11227668

RE: For all you homelite fans!!!
It's not your prop, I've been building homies for a long time , you raise that strut and set your pipe around 12" and it will sling that 482 or the 280 with ease . You should be in the 40's at least .
Posted on: 9/8/2012 8:13 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222341

RE: For all you homelite fans!!!
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 .
Posted on: 9/8/2012 7:32 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222303

RE: For all you homelite fans!!!
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"
Posted on: 9/8/2012 5:58 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222214

RE: For all you homelite fans!!!
So if I understand you correctly , you are running a sub surface drive , if you are there is your problem, raise that strut up so your drive shaft is laying in the "V" of the hull you will see a big difference in your engine unloading and the hull getting out of the water. Jim
Posted on: 9/8/2012 3:22 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11222058

RE: 30cc hommie
Dave, I received parts today, I can use them on one of my builds . Thanks Again, Jim
Posted on: 8/23/2012 7:04 AM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11203243

RE: 30cc hommie
Thanks Dave, I really appreciate it. Jim
Posted on: 8/21/2012 6:58 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11201540

RE: 30cc hommie
I would like the cylinder and piston , I can paypal the shipping costs. Please send paypal information to chipbreakr@suddenlink.net
Posted on: 8/21/2012 6:47 AM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11200756

RE: For all you homelite fans!!!
I'm still tweeking on it , I have a guy who wants to buy it , but I might make it a winter project .
Posted on: 8/17/2012 6:50 AM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11196717

RE: For all you homelite fans!!!
The engine is a 2 port and I set the timing at 176 degrees on the exhaust ,so it should still have some torque.
Posted on: 8/16/2012 5:37 AM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11195567

RE: For all you homelite fans!!!
I have bumped it up over 15500 rpm on the test bench and it is smooth as can be . All this is experimental , you won't know what it will do until it in a boat .
Posted on: 8/15/2012 5:45 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11195024

RE: For all you homelite fans!!!
Here is the full crank , 4 bearing , 30cc homie I was telling you about . I'm almost finished with it and have test fired it a couple times . Here is a link to the video of it running . The flywheel , coil and pullstart are off a zenoah 23cc . All mods were done by me . Jim http://youtu.be/V-uxvIVAQrU
Posted on: 8/15/2012 11:50 AM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=11194571

RE: Water cooling jacket
I used regular solder to put the copper jacket together ,and hi-temp silicone to seal it . Jim
Posted on: 2/6/2012 6:37 AM by Author "chipbreakr" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=10946216

RE: Water cooling jacket
I've made them out of copper and aluminium . Takes a little time to fit them . Jim
Posted on: 2/5/2012 7:33 PM by Author "chipbreakr" in the forum "RC Boats General Discussion"
http://www.rcuniverse.com/forum/fb.asp?m=10945774

RE: Homelite
25cc - 1.312 30cc - 1.437 If it's a stock homelite 25cc , it will have a bridge in the exhaust port . If it's been modded the bridge might have been removed . Jim
Posted on: 12/1/2011 3:55 PM by Author "chipbreakr" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=10838695

RE: Another Homelite 30cc
After you stuff the crankcase , you can take a grinder and unshroud the rear transfer . I do it to all my engines . Does make a difference. Jim
Posted on: 6/22/2011 6:07 PM by Author "chipbreakr" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=10587478

RE: New 48
hey Jeff, I'll have that 30cc finished next week if I keep feeling better. Jim
Posted on: 6/17/2011 8:04 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=10579698

RE: Ryobi/Homelite 30cc duration numbers???
Homelites are not race engines , but a economical way to get started in rc boating . They are the engine that started the gas boat craze , and for someone who is on a budget , a great way to have fun . I modded a FS 80 years ago. I put a 30cc homie cylinder and piston on it , ran great Jim
Posted on: 5/30/2011 11:26 AM by Author "chipbreakr" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=10548407

RE: Ryobi/Homelite 30cc duration numbers???
I have a modified , one piece crank . It has been made into a full circle crank , I ground the rod pin to .375 to accept the heavier rod and better bearing . I don't have a case right now , but will probably bore out a newer case to accept the larger bearing needed for the one piece crank . I don't use base gaskets , I just machine the cylinder base to get the head clearance I want and then lap the cylinder into the case face . Perfectly straight and a perfect seal ,with some Hi-temp silicone .You can widen the transfers at the base just taper them down to the OEM width . Makes a pretty good engine . The rear pull start won't work with the one piece crank , as the rod pin isn't long enough . You can use a regular case plate and put a regular pullstart on the front of the engine . The bearing in your pullstart now has no effect as far as stability for the crank , and your turning more mass with this type of starter . If you can do your own work , you can make a great engine for little to nothing . Jim
Posted on: 5/30/2011 8:56 AM by Author "chipbreakr" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=10548195

RE: Ryobi/Homelite 30cc duration numbers???
Why would you need to fill the intake port. The #'s are usually low and the port needs opened up . But yes it would work on the intake side. I did a 4 port homelite before, I ground the transfers wider at the base and left the top of the transfers stock. It ran well. If you use a one piece crank ,your engine can survive higher rpm. I build and run homelite and zenoah ,yes performance wise the zen is a more powerful engine , but if you can do your own mods , you can build a homie for practically free., and it will run a boat in the high forties , with the right setup. Jim
Posted on: 5/18/2011 10:01 AM by Author "chipbreakr" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=10527463

RE: new boat have some ?
The John Deere 30cc is a homelite built engine. You can take the pullstart housing off your older engine and it will fit on the Deere , if you want to have the engine mounted in the same place. Jim
Posted on: 1/8/2011 4:15 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=10248890

RE: Ryobi/Homelite 30cc duration numbers???
You have 2 options, one is to put a thicker gasket under the cylinder , which not only changes your compression , but also your ports . The other I have did for a guy that had the same problem .I measured how much the port was open under the piston , and then the height of the port, then removed the cylinder and glass beaded the Exhaust port , then placed a piece of tape over the port on the inside of the cylinder. I used Devcon Titanium epoxy on the bottom of the port and let it cure. I then subtracted the amount that the port was open under the piston from the height of the port and used my grinder with a burr to blend in the epoxy to that size. It worked ,but remember the surface in the port has to be really clean for this to work . Also if you do glass bead the port , put a piece of thick rubber on the inside of the cylinder , so you don't blast the bore of the cylinder. Hope this helps, Jim
Posted on: 1/2/2011 7:15 PM by Author "chipbreakr" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=10235304

RE: Ryobi/Homelite 30cc duration numbers???
You can up the compression , but be careful not to lower the cylinder too much , or you will end up with a free port situation,[ when the piston is at top dead center the exhaust port is exposed at the bottom of the piston] The one piece forged crank will have to have the rod pin ground to .375 , so you can use the newer, better rod and bearing, and you will need to have the block the crank came out of , as the bearings are bigger for the one piece crank. You can widen the transfers and match them to the block. The best #'s for ports on a homie is EX. 168 to 170 [with forged crank 172 to 174 ] , Intake 152 , .020 head clearance. For a 3 piece crank 13,500 rpm max , Forges crank ,15,500 rpm Go to youtube and look at the Homies I have been modding for years. Search "chipbreakr" Jim
Posted on: 1/2/2011 12:45 PM by Author "chipbreakr" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=10234434

RE: Homelite 30cc to convert.. Questions.
built , all are when they are being tested after the mods . Youtube search "chipbreakr "
Posted on: 12/29/2010 2:36 PM by Author "chipbreakr" in the forum "Speed - RC Gas Boats"
http://www.rcuniverse.com/forum/fb.asp?m=10225752

RE: pipe for firehammer
I have a Firehammer mt with a DDM 29cc engine on it. I made my own pipe for it . I have been making pipes for gas boats for years , so this wasn't a real hard fit to make. Here is a pic of the pipe before I painted it . It really lit this truck up compared to the aluminium box muffler that was on it when I bought it . Jim
Posted on: 1/16/2010 8:35 PM by Author "chipbreakr" in the forum "RC Giant Scale Cars"
http://www.rcuniverse.com/forum/fb.asp?m=9421824

RE: NEW Vehicle Naming Contest
REDCAT DARK STAR RS
Posted on: 1/15/2010 7:19 PM by Author "chipbreakr" in the forum "Redcat Racing Support"
http://www.rcuniverse.com/forum/fb.asp?m=9419274