540cc Honda 360 Engine
- Thread starter cyclhed
- Start date
sxecafe
You think the Carpet Pissers did this?
This thing is clearly a feat of engineering! Coming from a complete novice stand point, it seems like over kill to me, in particular the frame. What's the mindset behind all of that fabrication? I know that you're giving the motor a nice kick in the ass but a normal 500T frame doesnt have that type of reinforcement. Again, this is coming from a place of wanting to be educated, not talking shit on what you're doing.
mydlyfkryzis
当有疑问时踢你的敌人在生殖器上，你可以道歉后
While the front mounts to the exhaust ports looks tough, I don't think the exhaust ports are really design for anything but an axial load. The side loading on that area seems a little iffy, as there is not a lot of cylinder structure right there.
For actual strength, you might do better on the upper head mounts. Much more structure to support the bolts. I suspect your mounts and frame are very strong, but not so the exhaust port area of the engine. an appropriate bracket for those heim joits would really be a tough looking and actually tough, mount.
Heck, those exhaust studs break just holding the exhaust pipe, never mind a mean dog of an engine. I think your mounts and bolts are going to be strong, just not the threaded head area.
For actual strength, you might do better on the upper head mounts. Much more structure to support the bolts. I suspect your mounts and frame are very strong, but not so the exhaust port area of the engine. an appropriate bracket for those heim joits would really be a tough looking and actually tough, mount.
Heck, those exhaust studs break just holding the exhaust pipe, never mind a mean dog of an engine. I think your mounts and bolts are going to be strong, just not the threaded head area.
cyclhed
Been Around the Block
crazypj said:
sxecafe said:
Take a look at Reply #27 for the philosophy behind this project, it pretty much explains it. As to the exhaust studs you guys may be correct with your concerns. I don't know if they will hold up or not, but I'm sure the builder will have some explanations, or not! If it doesn't work (breaks) he will change it I'm sure. Please understand that I am not the builder of this bike, my father is. I am posting the pics on here for everyone's enjoyment and I thank you for all comments, questions, concerns and suggestions. Keep them coming. I will update with information and pictures as it comes in.
PJ, I don't think he's planning for a different power plant in the future. I think he'll maybe develop this engine to get max performance until he is satisfied, or moves on.
Autotek
You cant put a price on awesome.
Swivel said:The heim joint swingarm bushes will not work right:it will provide "rear wheel steering".The swingarm shaft appears to be too small for strength in the images.
The weird heim joint construction for the exhaust studs will not be strong,stable or rigid enough.
Y'r a CAR GUY right? .
Kind of agree, Looks cool though!
cyclhed said:
Is that just supposition, or can you share some info about that? My understanding of Heim joints is that they allow some side-to-side movement as well as up and down. I don't think that's something you really want in a swingarm.
Also... what are the reasons you think that the exhaust studs will be sufficient? I've seen these things break with little more than the weight of the exhaust on them. Heat cycling, I think, makes them brittle? The load you're expecting these things to carry is significant. That's even before you take into consideration the torque of the engine when it's running.
From what I know (and I'm always looking to learn more, so please share with us), both of these decisions don't seem like good ideas.
Just to be clear, I'm not being sarcastic. If there's something I'm missing here, I want to know about it.
foundation982
Been Around the Block
For the love of god I want to see that motor run!
cyclhed
Been Around the Block
crazypj said:
Tell PJ front hub is narrowed Harley as he said, ft. wheel is 16 x
3.250" 40 spoke, don't know what brand. Rear is 16 x 4.250 Akront 40
spoke. Plan is to change rear hub to aluminum Harley to match the
front but who knows when, as I don't like to spoke and true, the front
was plenty for now.
cyclhed
Been Around the Block
Sonreir said:
As to exhaust holes, I did an inadvertent load test in the form of
knocking frame and engine off the bench, it rotated 320* and landed on
alt cover, smashing cover , stator and small cover. No damage to exhaust
holes or struts however. Not even a paint scratch on frame. New covers
are ready to be painted and installed shortly.
cyclhed
Been Around the Block
Autotek said:
Yes, you are correct. Chain tension is adjusted at heims.
As to "play" in heim joints: there should be no play whatsoever in a sperical rod end bearing of this type which is engineered to be used in automotive suspension and steering systems. This method has been used many times on motorcycles also and will work perfectly.
