Universal chassis mk 3

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BONES
Posts: 350
Joined: Wed Mar 15, 2006 4:28 pm
Location: Killara Sydney

Re: Universal chassis mk 3

Post by BONES » Sun Jul 28, 2013 10:37 pm

It has wheels!!
Rear is a rgv250 4 x 18. 150/70 tyre
Front gs500 3 x 17 110/60 tyre
Bussa forks shortened to 50mm travel
zx10 triple clamps which have a little less offset so more trail
Image
Now the big bit is done all that is left is most of it

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RGV
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Location: Adelaide Hills

Re: Universal chassis mk 3

Post by RGV » Sun Jul 28, 2013 11:22 pm

Hey Bones, dont use an RGV rear wheel. That motor will destroy it. People putting Big Bore Yam motors into RGV frames have broken the sprocket mounting lugs off the sprocket carrier. I think a GS500 or SV650 wheel is a better option from what I have heard. Maybe even the GS500 sprocket carrier will fit the RGV wheel.

Dave

Last Minute Racing "its a 2-stroke ya twit - Its supposed to smoke"
DLRA #928
SATA #10

2010 MPS/G 250 118 MPH:)
2011 Washed Out:(
2012 Washed Out:(
2013 MPS/G 250 131 MPH (RECORD):)
2014 MPS/G 250 140 MPH (RECORD):)
2015 MPS/F 250 DNF:(

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AuotonomousRX
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Location: Eyre Peninsula SA

Re: Universal chassis mk 3

Post by AuotonomousRX » Mon Jul 29, 2013 3:34 pm

Nice looking bit of gear Bones

Like Dave says the Cush Drive is a bit on the weak side

In the UK a Billet Cush Drive has been developed for RGV500 conversions sells for 120 GBP

http://www.performancefab.co.uk/catalog.htm ( go to the bottom of the page )

Pete
Metric Target 250 on a 250 on a Red Bike

Pete :shock:
DLRA #866
SATA #49

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BONES
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Location: Killara Sydney

Re: Universal chassis mk 3

Post by BONES » Mon Jul 29, 2013 10:57 pm

The cush drive should be ok.
I made a new one out of billet
There's not many 18" wheels around

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RGV
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Location: Adelaide Hills

Re: Universal chassis mk 3

Post by RGV » Tue Jul 30, 2013 7:18 pm

Problem solved.

Dave

Last Minute Racing "its a 2-stroke ya twit - Its supposed to smoke"
DLRA #928
SATA #10

2010 MPS/G 250 118 MPH:)
2011 Washed Out:(
2012 Washed Out:(
2013 MPS/G 250 131 MPH (RECORD):)
2014 MPS/G 250 140 MPH (RECORD):)
2015 MPS/F 250 DNF:(

Jeff lemon
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Location: Perth

Re: Universal chassis mk 3

Post by Jeff lemon » Wed Jul 31, 2013 10:06 am

Old Kawasaki zx10 has 18in rear rim.
The Cups half full!!

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BONES
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Location: Killara Sydney

Re: Universal chassis mk 3

Post by BONES » Mon Oct 14, 2013 9:57 pm

Time for an update.
The exhaust is nearly done. I haven't done one for a couple of years and it's testing me.
Fuel tank done and mounted
Battery box 1/2 done
Image
Image
Image

Stayt`ie
Posts: 889
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Location: Mackay

Re: Universal chassis mk 3

Post by Stayt`ie » Mon Oct 14, 2013 10:16 pm

cut an shut, its like hearding cats, :twisted: , lookin good mate, 8) ,, bit off a window in #4, :? ,,
First Australian to ride a motorcycle over 200mph at Bonneville,,,

Johno Senior
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Joined: Mon May 21, 2012 12:17 am
Location: Berri Sth Oz

Re: Universal chassis mk 3

Post by Johno Senior » Mon Oct 14, 2013 11:51 pm

Now that you are all skilled and refreshed in exhausts you could do one for me :D :D :D just joking
The exhaust looks good though, fairly short primaries to my eye, did you do the math or is that a standard thingo sizo for the big hp motors ?

I am just starting an over the top of engine system for my honda cb 750 , I brought a nice set of conventional under the bike pipes from the states with the primary lengths I wanted etc as a plan B but I am trying to tidy up under the bike and also to use the exhaust to get some aerodynamic advantage if possible, see how it turns out , if its half as good as yours I will be happy...........not sure about sitting on top of an exhaust pipe on a 45 deg day yet , :D :D :D
cheers johno

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BONES
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Location: Killara Sydney

Re: Universal chassis mk 3

Post by BONES » Tue Oct 15, 2013 6:41 pm

Hey Senior
I could make you a set but I don't think you can afford it--- I work slow.
The book (A Graham Bell) said 16.5" @ 10000 rpm with 50deg exhaust open BBDC.
I'm going with Bell as I have no other info. He has worked for me before.
I have a 4-2-1 system I will try on the dyno---we'll see if I'm as good as yoshamura.
Ronnie
the window has nothing to do with me--- see Greg
Running naked next year, fuel and gas------ look out!!
cheers Bones

Stayt`ie
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Joined: Fri May 13, 2005 11:47 pm
Location: Mackay

Re: Universal chassis mk 3

Post by Stayt`ie » Tue Oct 15, 2013 7:09 pm

effing Hayabusas, :lol: :lol: ,,
First Australian to ride a motorcycle over 200mph at Bonneville,,,

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RGV
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Location: Adelaide Hills

Re: Universal chassis mk 3

Post by RGV » Tue Oct 15, 2013 9:07 pm

Honda had a try at over the engine pipes on their GP? bikes. They put the fuel tank under the engine trying to lower the C of G. Didnt work,

Image

Image

Image

Dave

Last Minute Racing "its a 2-stroke ya twit - Its supposed to smoke"
DLRA #928
SATA #10

2010 MPS/G 250 118 MPH:)
2011 Washed Out:(
2012 Washed Out:(
2013 MPS/G 250 131 MPH (RECORD):)
2014 MPS/G 250 140 MPH (RECORD):)
2015 MPS/F 250 DNF:(

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BONES
Posts: 350
Joined: Wed Mar 15, 2006 4:28 pm
Location: Killara Sydney

Re: Universal chassis mk 3

Post by BONES » Wed Oct 16, 2013 5:45 pm

Hey RGV
I have another plan----- 500cc tz750 with reversed cylinders.
I recon it would make a FAST 500cc bike. Packaging the pipes would be the trick but not nearly as hard as the Honda
Bones

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JonB
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Location: Brisbane

Re: Universal chassis mk 3

Post by JonB » Fri Oct 18, 2013 4:58 pm

Looking good Bones.

Did you manage to find 1-1/2" ID stainless for collars?
I've turned up short in my searches so far; Edge buggies used to do them but currently don't.


Thanks
jon
DLRA#1115
Underhouse Engineering

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BONES
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Joined: Wed Mar 15, 2006 4:28 pm
Location: Killara Sydney

Re: Universal chassis mk 3

Post by BONES » Fri Oct 18, 2013 6:31 pm

Hey Jon
The pipes are 1 5/8 which happens to fit the stubs from the Yoshi system that was on the bike.
I'm going to dyno both systems.
It's easy to machine some stubs -- I've done it a few times.
I have some old bits lying around (mild steel) I'll have a look.
If you want me to doo the wheel you better give me a drawing
I wasn't sure how the welding was going to go after 6 years. The chassis is good to weld with the current high,but the pipes are much harder to see
with the low current.
It's turning out pretty good.
The race to 200 naked is on.
Ronnie------ stop messing around with those kawasakies :P
Bones

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