Author Topic: 2013 honda concept. 76 550 with cbr600 f4 (Read 29970 times)

Mercuno · « **Reply #100 on:** December 21, 2011, 05:41:32 PM »

as for the frame--Absolutely-- I dunno about the swingarm ? I havent really seen the need for any more than what it has. It wont have any real torsion applied to it transversely and I have not extended it.

I am more than doubling the power to this bike and for anyone who wants to try this you do so at your own risk. You absolutely must reinforce the frame even though you will be using the engine as a stressed member the rear portion of the bike has a visible flex to it.

Retro Rocket · « **Reply #101 on:** December 21, 2011, 08:38:41 PM »

Quote

I dunno about the swingarm ? I haven't really seen the need for any more than what it has

If you don't do something with that swing arm it will be the weak link in this project. The forces transfered to it by the 100HP+ that engine will produce, will be trying to turn that arm inside out.... Even Racers with 25% less HP on 500-550?4's brace their arms {or use better ones} , I would definitely be bracing it if it were mine or use a different arm.....

Syscrush · « **Reply #102 on:** December 21, 2011, 08:50:31 PM »

Quote from: Mercuno on December 21, 2011, 05:41:32 PM

I am more than doubling the power to this bike and for anyone who wants to try this you do so at your own risk. You absolutely must reinforce the frame even though you will be using the engine as a stressed member the rear portion of the bike has a visible flex to it.

Probably more like tripling.

When you say that the rear portion has a visible flex, what do you mean? What's making it flex?

Mercuno · « **Reply #103 on:** December 22, 2011, 12:59:27 AM »

well I wasnt really too familiar with the 550 by far. My first motorcycle ever on a whim.
The rails where the seat is were able to have some up down relative to each other. I am just guessing here but seems to me that one of the P.O.'s cut off a bar that bridges/braces the two rails. I plan on cross bracing as well.

Its hard for me to envision until I can get it where it will (in theory) be a runner and then reverse the process all the while buffering the entire system.

I also have ears to hear so I will surely be bracing the swingarm.

y2kc0wb0y · « **Reply #104 on:** December 22, 2011, 05:23:35 AM »

Subscribed....

Syscrush · « **Reply #105 on:** December 23, 2011, 07:07:52 AM »

If you are keeping the dual shock setup in the rear (which I think you are doing), then you want that subframe to be very solid. That's kind of independent of the increase in power, unlike the main frame, headstock, and swingarm.

Using the engine as a stressed member is a very good idea IMO, but that frame is gonna make me nervous until I see some X's and gussets on it.

Mercuno · « **Reply #106 on:** December 23, 2011, 01:14:41 PM »

Just put down the first layer today, nothin else.
I will have to wait till it dries in this cold weather to see if it will slide on and off smoothly or if I will have to tweak it before layin it on thick.

Soon as the tank is done will start strengthening the frame and then on to wiring. I can feel it coming to life now. A whole lot more than when I cut the bike to pieces for sure lol.

65Ch3v3LL3 · « **Reply #107 on:** December 23, 2011, 07:20:50 PM »

Just a thought here but if you are forming the tank to the frame then perhaps you should add the additional bracing and tubes first so you aren't having to redo your work. I agree with others here you need more tubing and gussets. I think a tubing bender would be a good purchase at this point. Good luck with the build.

Killer Canary · « **Reply #108 on:** December 25, 2011, 05:24:33 PM »

Check out the latest issue of CMM; in the Show Us Yours section there's a CBR600 engine built up into a chopper.The mounts to the frame look pretty neat.

Blackandsilver · « **Reply #109 on:** December 26, 2011, 01:04:22 AM »

Subscribed!!! I gotta show my buddy Murray this!

Win some lose some, it's all the same to me.

Roach Carver · « **Reply #110 on:** December 26, 2011, 08:32:46 AM »

Youtube the first ride for sure.

ivanhoew · « **Reply #111 on:** December 26, 2011, 10:03:18 AM »

most interesting ,thank you .

Mercuno · « **Reply #112 on:** December 30, 2011, 03:19:09 PM »

Not much done. I bought some 3 dollar foam in a can(s) lettin it dry overnight then gonna form it and start layin more glass...

Syscrush · « **Reply #113 on:** December 30, 2011, 10:08:03 PM »

Have you used that stuff for fiberglass fabbing before? I have, and I found I had better luck using foam that sands easier. I also prefer just building something up out of papier mache over that spray foam: It's hard outside and has big air gaps inside, I find it tough to work.

Roach Carver · « **Reply #114 on:** December 31, 2011, 05:22:43 AM »

I would just glass over that and have it painted like a funnel cake.

Terry in Australia · « **Reply #115 on:** December 31, 2011, 05:25:20 AM »

I'd put a couple of eyes and a cute pink nose on it and call it a sheep!

Mercuno · « **Reply #116 on:** December 31, 2011, 07:35:32 AM »

it could be frankenstein's brain

Godffery · « **Reply #117 on:** December 31, 2011, 08:32:23 AM »

Hummm... not sure that's ever coming off the frame? Looked like you had some substantial undercuts in the fiberglass part?

I have to say; this project has got me thinking! 8-\

Killer Canary · « **Reply #118 on:** December 31, 2011, 08:56:51 AM »

Always thinking about sheep, Terry!

Tews19 · « **Reply #119 on:** December 31, 2011, 09:24:54 AM »

Hey Merc, i used the same spray foam for small leaks in the basement. That #$%* is extremely hard to remove. I wil continue to watch. Very interesting

Mercuno · « **Reply #120 on:** December 31, 2011, 01:10:55 PM »

Yeah I tried it while building my seat. I used masking tape and cooking spray over the bottom layer of glass. I want it in two pieces (top and bottom) so I can make final adjustments as needed before sealing it up. it will slide right off of there right now if I wanted it to. once it completely dries I will shape it and again mask and oil it before laying the top layer of glass.
As it sits right now I could shape it and then take it off of the bike completely to lay the glass so I could work on the motor wiring some more.
I should have mentioned about the undercut earlier: I tried to get it as form fitting as I could because as you know the glass has a tendency to sag if not supported. I was fortunate however as to not undercut, the base of the tank will slide on and off with ease. I also made it larger than necessary so I could cut it down one time and not need to add anymore glass. the bottom is a great success and I am very pleased with it. I now wish I had taken a picture of the cut down bottom before foaming the crap out of it haha.
When I am done shaping I will take some pics of it.
Fiberglass is a wonderful medium with a very small learning curve to it and I suggest giving it a try to anyone. thanks again for all of your support on this forum and please keep chiming in to help remind me of anything I may happen to miss.

I am also going to give my machine shop a call as the 76 sprocket just will not work. I will have one made with the 76 bolt holes and the 99 gears unless I can source something aftermarket?

Terry in Australia · « **Reply #121 on:** December 31, 2011, 09:06:44 PM »

Quote from: Killer Canary on December 31, 2011, 08:56:51 AM

Always thinking about sheep, Terry!

Ha ha, I was waiting for that!

Godffery · « **Reply #122 on:** January 01, 2012, 03:01:45 AM »

Well that's good to here man; looking forward to seeing this come together.
Keep us posted on your progress.

K5owner · « **Reply #123 on:** January 01, 2012, 03:28:19 AM »

Interesting project - subscribed

FrankenFrankenstuff · « **Reply #124 on:** January 01, 2012, 07:09:51 AM »

If you have trouble with the spray foam (it is bad to build with because it only has a rigid skin, and is full of soft airbubbles inside/ tough to bondo and sand..bla) been there tried that.

You can try the rigid foam insulation board, just cut and glue to size. Sands well. Even the green rigid foam they use at the florists works well.

There are 2 part urethane foam kits avail. The stuff that they make surfboards out of. You mix and pour, sand perfect, easy to work. Stuff is $$$ though.

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Author Topic: 2013 honda concept. 76 550 with cbr600 f4 (Read 29970 times)