dj -mod: revisited - doing the maths for this modification - gearing plots and more! - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum
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post #1 of 4 (permalink) Old 10-07-2016, 04:47 PM Thread Starter
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dj -mod: revisited - doing the maths for this modification - gearing plots and more!

hello dear Volusia-experts,

i run a VX 800 - and i want to rework the transmision
- i guess that you are the experts for this project.

impressed by the inspiring stories

1. dj-mod - explained
The DJ Drive mod explained

2. How to guide: VS1400 drive on a VL800/C50
How to guide: VS1400 drive on a VL800/C50


note: i run a VX 800 - and i want to rework the transmision - i guess that you are the experts for this project.

for calculating the data - i want to create some gearing plots...

therefore i need to have the data
Reduction ratios:
Primary: Internal Gearing: Engine: Transmission
Final; External Gearing: Ratio of Front &/ Rear Sprocket
Overall ratio: (engine:tire)

- btw: i am planing to replace the stock shaft VX 800 with the final drive of VS 1400

i want to see the differences in gearing plots....


like i did this for the GS 500


http://forum.gs-500.de/attachment.ph...8&d=1368031261




see the thread for the story - regarding the GS 500 XXL-‹bersetzung 18/36 & 130/90 -> 32 % lšnger: Bilder, Diagramme, Testfahrten - gs-500.de

the main difference is : GS 500 is chain driven ; VX 800 is shaft-driven with a cardan...
therefore we need to enter the data in a special way...

Reduction ratios:

Primary: Internal Gearing: Engine: Transmission
Final; External Gearing: Ratio of Front &/ Rear Sprocket
Overall ratio: (engine:tire)

question :
can you help me here in doing that:

i have the following data:

Suzuki VX800 brochure scans
international version:

Secondary reduction ratio: 0.851 (23/27) - 1.133 (17/15x30/30)...
Final reduction ratio: 3.090 (34/11)
E-03, E-33: 1.096 (17/15 x 30/31)

Gear ratios:
Low 1.690 (71/42)
2nd 2.285 (32/14)
3rd 1.631 (31/19)
4th 1.227 (27/22)
Top 1.000 (25/25)

well - the first question is - are this true data - are they valid - for the stock version of VX 800?
the second question: which data are relevant - if i use the Final-drive VS 1400 .... ?

btw:i ve tried to attach the gearing spreadsheet of Roberto - but unfortunatly i cannot attach
- winrar files
- excel-files
- calc files

i can send you the script or you can get it from heere....

https://www.google.de/url?sa=t&rct=j...S2xWTw&cad=rja

btw - the spreadsheet has got some locked cells - i have the unlocked cells

I love to hear from you
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post #2 of 4 (permalink) Old 10-07-2016, 05:32 PM Thread Starter
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hello i have found some data

see the manual
http://gsarchive.bwringer.com/mtsac/...e%20Manual.pdf




foto hochladen


well i guess that this helps us ...
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post #3 of 4 (permalink) Old 10-09-2016, 10:28 PM
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The only practical change you can make is to modify a C90/ LC1500 or 1400 drive to swap. I had a DJ drive (modified C90 drive) on my C50 It was a very good change in most respects. It reduced highway speed vibration and stretched the range of each gear. It did take a bit of snap out of it with the taller gearing. I don't regret putting it on my 05 C50 and when I traded it I removed and installed it on my 09 C50. I put over 30,000 miles on each bike with the modified drive. It would take a talented machinist to be able to rework the transmission. Dan Hillis and others have figured out how to use a C90 drive in a C50. A more simple approach to give a C50/ Volusia taller gearing.
Psyc0 likes this.

2009 Silver Road Star Silverado S
09 Silver/Grey C50SEC DJ Drive
05 Black/Silver C50 SE DJ Drive

David
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post #4 of 4 (permalink) Old 10-10-2016, 03:37 PM Thread Starter
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hello many thanks for the reply

just to understand all correct do we have two different versions of a change in Gearing ?!

a C90 drive in a C50.
a DJ drive (modified C90 drive) on C50

hmm - guess that this is one and the same modification... in other words

we take a C 90 drive and modify it - in order to fit in a C 50

.... or VX 800 ...

well i love this forum for its great users - that share ideas and solutions;: this is very very inspiring.

many many thanks for your reply
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