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ducatipaso.org • View topic - upgrading desmodue to dual spark!
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Mon Feb 23, 2009 9:07 am 
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paso grand pooh-bah
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Mon Feb 23, 2009 12:51 pm 
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No electrics at all.
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Mon Feb 23, 2009 12:59 pm 
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does that mean it isn`t mentioned or he didn`t do it ? If ignition timing isn`t changed the motor will not live very long as sooner or later there will be a piston damage. You need to modify the flywheel or get a programmable ignition module (standard ignition timing is 34° full advance and usually needs to be changed to 26, 28° or 30° with dual spark plugs depending on compression ratio and if it`s a bike originally equipped with a Kokusan or Digipley ignition)


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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Mon Feb 23, 2009 2:14 pm 
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He says there was any modification except for the exhaust pipes and for the setting of the carburettors by a Dynojet st2 kit.
No mention about the ignition.
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Tue Feb 24, 2009 7:16 pm 
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I'm thinking this might be a good beginning for an overboosted engine :thumbup:

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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Wed Feb 25, 2009 9:39 am 
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Wed Feb 25, 2009 6:18 pm 
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Actually I've seen an 851 engine with turbo supercharger and marelli ecu from a fiat uno turbo 1300cc, but I was meaning a volumetric supercharger such as EATON ones
(here's the site of an italian tuner)

Wonder how mutch torque can a 904 engine bear! :evil: :evil: :evil:

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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Thu Feb 26, 2009 11:56 am 
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:shock: :shock: :shock: :shock: :shock: :shock: :shock: :shock: :shock:
Why do butcher those ancient bikes????
I'm already trying to convince my 906 friend to not fit an ST4 engine on his bike....
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Fri Feb 27, 2009 6:36 am 
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Fri Feb 27, 2009 7:45 am 
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Some magazine (both modern and ancient) sometimes tells crap...
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Fri Feb 27, 2009 2:00 pm 
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The US site talks about retarding the timing but the spec is unreadable :roll:

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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Fri Feb 27, 2009 6:28 pm 
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Maybe electrex has a special mapping for desmodue?
Otherwise "pederzini" black boxes step 6 or 7 can do

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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Tue Mar 03, 2009 4:36 pm 
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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Tue Mar 03, 2009 6:00 pm 
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The friend of mine can't do the work by himself, so I guess such work can be very, very expensive...
Besides, many problems could be got over fitting an 851/888 engine, that would fit very well into the Paso frame.
But, all in all, I don't know how much is worth such project...
The Paso's frame doesn't tolerate the 4 valves power and has to be strengthened.
Ciao

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 Post subject: Re: upgrading desmodue to dual spark!
PostPosted: Wed Mar 04, 2009 2:29 am 
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1987 Ducati Paso 750
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