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| johnnyuk |
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johnnyuk
L Plate Warrior
Joined: 21 Oct 2011
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| Teflon-Mike |
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Teflon-Mike
tl;dr
Joined: 01 Jun 2010
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| johnnyuk |
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johnnyuk
L Plate Warrior
Joined: 21 Oct 2011
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 Posted: 11:59 - 21 Oct 2011  Post subject: |
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hi and thanks for a rapid reply and info 
The one ive got is a PVL system where you need the PVL tool to advance or retard when setting up the dynamic timing.
I will definately look into your recommenations
Cheers  |
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| pepperami |
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pepperami
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Joined: 17 Jan 2010
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| Posted: 16:57 - 21 Oct 2011 Post subject: Re: 1200cc two stroke CDI ignition modification |
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| Teflon-Mike |
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Teflon-Mike
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| Posted: 17:24 - 21 Oct 2011 Post subject: Re: 1200cc two stroke CDI ignition modification |
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Its been 'done'. They are about 400cc a pot, and comprably in an incredibly low state of tune. Most 'successful' one I read about used a polaris Skidoo engine, an 800cc twin, becouse that made it eligible for two-stroke twin class in drag racing; and was adapted from an engine re-engineered to fit in a wasp side-car cross chassis.
Biggest hassle was that for skidoo they have a variator belt transmission, like a scooter, which had to be 'dumped', the jet-ski engines have no transmission what-so ever, they have a big centrifugal water-pump on the end of the crank.... so to power a bike, thing had to be grafted to a pair of GSXR crank-cases to provide a gear-box..... THEN for all the big displacement, dont actually provide huge amount of power from it; tuned almost as a fixed speed engine, make about 30bhp a pot....
For the side-car-cross outfit; believe it had to be seriousely re-ported to get 90bhp from it, which sounds pretty good, but compared to what they were getting from tuned RD350 lumps or full TZ race motors, not all that impressive... its about what a 'stock' TZ250 proddy GPbike was making, fifteen twenty years ago.... lots of low down 'torque' though......
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Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?' |
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| pepperami |
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pepperami
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Joined: 17 Jan 2010
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| Posted: 19:10 - 21 Oct 2011 Post subject: |
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For those few moments the dream was nice 
along came Teff with his needle of logic and popped my balloon 
I wondered why it was`nt more common?
I know that one of the quad/buggy makers use a 400cc two-smoke triple engine
Wonder if they nicked the design from Kawasaki?
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Old Thread Alert!
The last post was made 14 years, 152 days ago. Instead of replying here, would creating a new thread be more useful? |
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