Project Chassis Choice
Moderator: rztom
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Re: Project Chassis Choice
I would agree that the welding aspect is likely tougher than just' buying a welder.' And certainly it can't be recommended to start with an item where weld racks could lead to death.
I have been looking fora motor for slingshot for some time and would consider throwing a RZ motor in there. It would absolutely have to run a full fairings though. The pipes will fit through the frame at the front but likely have to do some cutting to fit underneath.
Justin, If you find any more info let me know. If I can find a set of cases i would be willing to get started on this into a slingshot pretty quick and colab with you on info at least!
I have been looking fora motor for slingshot for some time and would consider throwing a RZ motor in there. It would absolutely have to run a full fairings though. The pipes will fit through the frame at the front but likely have to do some cutting to fit underneath.
Justin, If you find any more info let me know. If I can find a set of cases i would be willing to get started on this into a slingshot pretty quick and colab with you on info at least!
Re: Project Chassis Choice
I'll have a 2 spare cases hopefully by the end of the weekend I can ship. I'll want them back of course. But grey hound should be cheapevan_calgary wrote:
Justin, If you find any more info let me know. If I can find a set of cases i would be willing to get started on this into a slingshot pretty quick and colab with you on info at least!
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Re: Project Chassis Choice
Think I will likely buy a set as I don't currently have a motor for it (Oil Cooled 750 is beat and no 2-stroke motors right now). and then go from there.
Offer is much appreciated though.
Offer is much appreciated though.
Re: Project Chassis Choice
Absolutely. I have met Steve and he is exceptionally talented and a great personality as well. The fact that he is very familiar with modifying these old bikes is also a huge bonus. You don't build space craft for a living without being at the top of your game, that is why he modified the braking and steering components I am using. At the same time it doesn't take 10 or 15 years to be able to weld a motorcycle frame, but it does take regular practice and an understanding of how the metal behaves and what conditions lead to failures if you are going to modify something you plan to ride fast. I can weld well and I can machine parts, but I am neither a welder nor a machinist, as you say the key is to know your limitations and either work within them or seek to eliminate them. Natural selection will take care of those who don't.giron wrote:I partially agree with you. The part I disagree is when you make it sound so easy for welding. The welding takes years of practice. A couple of good examples are RGVSteve and Brian Turfrey. RGVSteve is in his sixties. He was train in the Air Force and in high school. He worked in the Kennedy Space center and on the Shuttle program. That reflects years of experience especially what you are proposing for anyone to cut up a frame. Then we get to Brian Turfrey. Brian started when he was 15 and he progress and continue with racing bikes and doing pipes for his 250 team and the Kenny Roberts team. I realized my limitations because of my age. If I was younger I would like to know how to weld.
Re: Project Chassis Choice
evan_calgary wrote:Think I will likely buy a set as I don't currently have a motor for it (Oil Cooled 750 is beat and no 2-stroke motors right now). and then go from there.
Offer is much appreciated though.
No problem. There's a set of cases for sale for $200 on kijiji Ontario
But banshee cases are way cheaper if you don't mind the chain whip, last I checked they were about $75us
Re: Project Chassis Choice
Its not only the ability to weld, but the engineering. On this thread they are talking about altering the neck of the frame. That is scary.
1991 3MATZR250SP
!993 3XVTZR250SP
1996 RGV250(Lucky Strike)
1994 MC28SP
1995 MC28SP
1996 MC28SP
1985 RG500(Walter Wolfe)
1984 IT490
1985 RZV500R
1985 NS400R
1985 NS400R
1997 VFR750
1992 FZR1000
RGV400
TZR500
TZR350
1990 RZ350
1971 Porsche911S
!993 3XVTZR250SP
1996 RGV250(Lucky Strike)
1994 MC28SP
1995 MC28SP
1996 MC28SP
1985 RG500(Walter Wolfe)
1984 IT490
1985 RZV500R
1985 NS400R
1985 NS400R
1997 VFR750
1992 FZR1000
RGV400
TZR500
TZR350
1990 RZ350
1971 Porsche911S
- RZResurection
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- Joined: Sat Jul 15, 2006 9:51 pm
Re: Project Chassis Choice
Well said Ruzty! That's exactly how to build your skill set, skill level and confidence.RuZty wrote:You get capabilities by having ideas and the passion to make them real. The important part is getting a deep enough understanding of what you are doing or knowing someone who does so that you don't suffer too much along the way.giron wrote:sometimes people get ideas in doing projects that they don't have the capabilities.
Jeff
Trying to build a bike that's as fast as my memories
87 Canadian 1WV
OEM Pipes
Gutted Airbox
VF4 Reeds
Milled Head (0.020")
Main 240
Pilot 27.5
02 R1 Front End
R6 Shock and Rims (180 Rear Tire)
84 FJ1100 Swingarm
Trying to build a bike that's as fast as my memories
87 Canadian 1WV
OEM Pipes
Gutted Airbox
VF4 Reeds
Milled Head (0.020")
Main 240
Pilot 27.5
02 R1 Front End
R6 Shock and Rims (180 Rear Tire)
84 FJ1100 Swingarm
Re: Project Chassis Choice
I know what you are saying, a little bit of knowledge is a dangerous thing. There is a time to involve a professional, but doing so doesn't mean not educating oneself along the way. Changing frame geometry is not to be undertaken lightly, but it is also not impossible for a competent individual to learn the necessary skills. I think we are coming to the same point from opposite ends.giron wrote:Its not only the ability to weld, but the engineering. On this thread they are talking about altering the neck of the frame. That is scary.
Re: Project Chassis Choice
I don't have any build info but here is where I saw it:evan_calgary wrote:I have a complete slingy that needs a new motor with upgraded USD front end sitting in my garage. Anyone have a link to a conversion?
http://2strokebiker.blogspot.ca/2007/11 ... m-and.html
You could email the site owner for info.
The aircooled engine in the pic seems to fit nice, kicker clears, lots of room for YPVS components etc. above the engine.
Colin
79 RD400F Daytona Special
81 RD350LC
89 TDR250
75 Kawasaki H1 500
77 Can-am Tnt250
79 RD400F Daytona Special
81 RD350LC
89 TDR250
75 Kawasaki H1 500
77 Can-am Tnt250
Re: Project Chassis Choice
Am I too far off base? On Erlenbachs site he has an RD 400 engine in a GS 500 frame with nominal frame notching, pipe mounting mods and final drive mods:
http://www.erlenbachracing.co/" onclick="window.open(this.href);return false;
roger
http://www.erlenbachracing.co/" onclick="window.open(this.href);return false;
roger
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- Posts: 1368
- Joined: Tue Nov 12, 2013 2:34 am
Re: Project Chassis Choice
Looking to stay full faired and a supersport style chassis. GS500 is a little too upright city cruiser for me. Excess rake and seat too low.
Re: Project Chassis Choice
I agree that I would not have chosen that particular location for welding. That was the customer's choice.giron wrote:Its not only the ability to weld, but the engineering. On this thread they are talking about altering the neck of the frame. That is scary.
But I can ensure you that I have an engineer degree and successfully welded aluminum parts for bikes before.
All of them were used in race bikes (road and off road) and survived.
Even my very first rear subframe had no cracks and was just slightly bend after the bike flipped upside down at around 100 kmh.
My personal conclusions reagardind frame welding is that it is not that kind of rocket sience as most people think. But you need a good portion of talent/training/brains and it can easily happen that you bite more than you can chew.
Bye
Martin
Martin
Re: Project Chassis Choice
I agree martin. Sometimes folks can get in over there limitations. That is the reason why I leave the welding to RGVSteve or Brian.
1991 3MATZR250SP
!993 3XVTZR250SP
1996 RGV250(Lucky Strike)
1994 MC28SP
1995 MC28SP
1996 MC28SP
1985 RG500(Walter Wolfe)
1984 IT490
1985 RZV500R
1985 NS400R
1985 NS400R
1997 VFR750
1992 FZR1000
RGV400
TZR500
TZR350
1990 RZ350
1971 Porsche911S
!993 3XVTZR250SP
1996 RGV250(Lucky Strike)
1994 MC28SP
1995 MC28SP
1996 MC28SP
1985 RG500(Walter Wolfe)
1984 IT490
1985 RZV500R
1985 NS400R
1985 NS400R
1997 VFR750
1992 FZR1000
RGV400
TZR500
TZR350
1990 RZ350
1971 Porsche911S
Re: Project Chassis Choice
Just for completeness sake: here's the finished Franken-Frame ...
First off road test is scheduled for Wednesday. Press your thumbs.
First off road test is scheduled for Wednesday. Press your thumbs.
- Attachments
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- frankenframe_completed.jpg (119.49 KiB) Viewed 2981 times
Bye
Martin
Martin
Re: Project Chassis Choice
German version of 'Cross your fingers' ?MK wrote:J Press your thumbs.