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Author Topic: 1974 CB360 - first bike/build  (Read 8307 times)

Offline crazypj

  • Posts: 12950
  • Split personality, I fake being smart
Re: 1974 CB360 - first bike/build
« Reply #50 on: Jan 29, 2018, 17:14:21 »
Just check there is enough support for the spring inside it and make sure you don't lose spring tension on retaining clip when it's time to re-assemble.
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline huck_finn

  • Posts: 155
    • 1974 CB360
Re: 1974 CB360 - first bike/build
« Reply #51 on: Feb 10, 2018, 14:45:30 »
Printed out a test plate to make sure my measurements were good for my air box/filter. I was thinking of creating a design that is similar exactly like ones I have seen for 750's.

Where the plate mates up with the intake is a really snug fit, but I have no idea if it will leak any air. I will have to wait until I get everything back together. Frame will be back from paint next week.

If anyone has done something similar for their 360, I would love to hear how it turned out.








« Last Edit: Feb 10, 2018, 21:37:16 by huck_finn »

Offline crazypj

  • Posts: 12950
  • Split personality, I fake being smart
Re: 1974 CB360 - first bike/build
« Reply #52 on: Feb 10, 2018, 23:41:16 »
That's kinda cute.
You really want a radius on edge though, 3/8" seems to be about minimum for good flow. ( there are other radii and angles for max flow rate)
Sharp edge acts as a restrictor at high airflow
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline huck_finn

  • Posts: 155
    • 1974 CB360
Re: 1974 CB360 - first bike/build
« Reply #53 on: Feb 11, 2018, 13:55:47 »
That's kinda cute.
You really want a radius on edge though, 3/8" seems to be about minimum for good flow. ( there are other radii and angles for max flow rate)
Sharp edge acts as a restrictor at high airflow

When you are referring to the edge, which edge do you mean? My thought behind going this route is to reduce the amount of space the air box takes up, while maintaining the same amount of filter surface area.


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Offline crazypj

  • Posts: 12950
  • Split personality, I fake being smart
Re: 1974 CB360 - first bike/build
« Reply #54 on: Feb 12, 2018, 12:45:20 »
The edge where tube meets plate. As your 3D printing it, it should be simple enough to make the 'tube' 7 degree internal angle to carb mouth and radius onto plate. Make one of those and I'll try it (or send file and I'll get it printed)
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline trek97

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Re: 1974 CB360 - first bike/build
« Reply #55 on: Feb 13, 2018, 08:31:46 »
Someone on here has done this very setup in the past.  (I thought it was bucky685, but I cant find anything about it.)
He found a "ready made" filter to fit his custom base perfectly.  Volkswagen Maybe???

I will keep searching.

Offline crazypj

  • Posts: 12950
  • Split personality, I fake being smart
Re: 1974 CB360 - first bike/build
« Reply #56 on: Feb 14, 2018, 16:54:47 »
I just want the custom base with the mods I outlined
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline Sonreir

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  • Posts: 10664
  • Oregon
Re: 1974 CB360 - first bike/build
« Reply #57 on: Feb 14, 2018, 16:59:21 »
Yup. Radius the point where the intake tract meets open (or airbox) air. A raise bellmouth that sits inside the airbox is effective.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
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Offline crazypj

  • Posts: 12950
  • Split personality, I fake being smart
Re: 1974 CB360 - first bike/build
« Reply #58 on: Feb 14, 2018, 19:35:59 »
Yep, that would be even better but way more difficult to print. What filament are you using as temps can easily get around 200f
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline huck_finn

  • Posts: 155
    • 1974 CB360
Re: 1974 CB360 - first bike/build
« Reply #59 on: Feb 17, 2018, 16:08:10 »
I am not sure what the standard filament is, but I do know they have ABS plastic, carbon fiber, kevlar, and onyx. The onyx produces the most finished look out of them all. The carbon fiber and kevlar filaments use nylon as a binder.

I haven't had a chance to work on the design in a while - work has gotten busy and I haven't been taking lunch to head down to the lab.

I did get my frame back from paint. Everything I got back looks good, with the exception of the rear brake cover, which came out with a run on it. The kid working on everything repainted it three times, but just couldn't get it to come out. I suppose I got what I paid for. More than anything I am glad rust won't be a concern for the foreseeable future.









When I get back from visiting in-laws I will need to put on the new steering bearings before reassembling, and taking final measurements for the air filter and seat pan.
« Last Edit: Feb 17, 2018, 16:42:50 by huck_finn »