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Street Triple Forum Owners and Enthusiasts of the new Triumph 675 Street Triple.

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Old 11-19-2011, 12:51 PM   #1 (permalink)
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Technical engine drawings

Hello my friends,

I really enjoy reading up on the technical and mechanical aspects of engines, something I have never learned at school besides a 2 lesson overview of 2 and 4 strokes. My physics classes were not that hands on...
I have been reading from the excellent 'motorcycle basics techbook', a Haynes manual, and a lot from wikipedia.org.
It's all very interesting and it's nice to know what's happening with your bike and the physics involved.

The only thing is that I'd like to know more about the striple itself.
I have the haynes manual on the striple but It's no god for reading, it's a diy manual.

Does anybody know of, or have, any technical drawings, maybe even 3d of (parts of) the striple? Or are there any books that have more in depth material on it?
I might try triumph itself also, better to go straight to the source, unless you guys can point me in the right direction

Thanks in advance
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Old 11-20-2011, 03:18 AM   #2 (permalink)
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Not exactly what you're looking for but interesting.
Attached Thumbnails
Technical engine drawings-triumph-675-cylinder-cross-section.jpg   Technical engine drawings-triumph-675-daytona-cutaway-in-details.jpg   Technical engine drawings-triumph-675-intake-cross-section.jpg   Technical engine drawings-triumph-675-motor-diagram.jpg   Technical engine drawings-triumph-675-throttle-body-cross-section.jpg  

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Old 11-20-2011, 05:30 PM   #3 (permalink)
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Hey MB, that's great, thanks a lot for sharing that!
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Old 11-21-2011, 06:44 PM   #4 (permalink)
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If you want to see how the entire engine goes together, you could pick up a shop manual. It's a little expensive, but it's useful. You can also find exploded parts drawings at bike bandit or some other part suppliers out there.
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Old 11-21-2011, 08:31 PM   #5 (permalink)
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Quote:
Originally Posted by MacBandit View Post
Not exactly what you're looking for but interesting.
Hey MacB, is that really correct on that color drawing where it states the Daytona has 123HP at crank and 116 at wheel? That's only a 6% drive train loss, pretty impressive if accurate. That should mean then, applying the same 6% loss to the 107HP striple, roughly 100.5HP at its rear wheel. Has anyone actually got those numbers on a dyno, on a stock striple?
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Old 11-22-2011, 11:52 AM   #6 (permalink)
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I believe that the stock striple has shown about 99 bhp at the wheel - not too far off.

Rob
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Old 11-22-2011, 12:32 PM   #7 (permalink)
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Quote:
Originally Posted by bira View Post
Hey MacB, is that really correct on that color drawing where it states the Daytona has 123HP at crank and 116 at wheel? That's only a 6% drive train loss, pretty impressive if accurate. That should mean then, applying the same 6% loss to the 107HP striple, roughly 100.5HP at its rear wheel. Has anyone actually got those numbers on a dyno, on a stock striple?
No that's not correct. Also that is for the old Daytona which typically had between 105-110HP at the rear wheel. Also the Street Triple has 105hp at the engine and typically around 90-95 at the rear wheel.
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Old 11-22-2011, 01:38 PM   #8 (permalink)
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Originally Posted by MacBandit View Post
No that's not correct. Also that is for the old Daytona which typically had between 105-110HP at the rear wheel. Also the Street Triple has 105hp at the engine and typically around 90-95 at the rear wheel.
Yeah, that sounds more plausible. Thanks.
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Old 11-22-2011, 03:36 PM   #9 (permalink)
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@spacelemur: thanks for the tip


Sent from my Motorcycle iPad app
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