SuzukiSavage.com - Twin engines

paulmarshall Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1268 Carterton,New Zealand Gender:	Twin engines 04/14/13 at 15:55:51 Can we do this with 2 Savages. http://bringatrailer.com/2011/06/17/ty-exclusive-early-70s-twin-engine-yamaha...
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rfw2003 Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1108 Yantis, TX	Re: Twin engines Reply #1 - 04/14/13 at 16:03:27 Don't see how it would be possible with the Savage Engines since the Tranny is built into the engine. you would need Motorcycle engines that have a separate tranny from the engine to be able to pull this off and make it work properly R.F.
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apache snow-FSO Serious Thumper Offline Posts: 509 Gender:	Re: Twin engines Reply #2 - 04/14/13 at 16:07:17 Those two yamahas have the tranny built into the engine.
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rfw2003

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Re: Twin engines
Reply #3 - 04/14/13 at 16:15:25

apache snow-FSO wrote on 04/14/13 at 16:07:17:

Those two yamahas have the tranny built into the engine.

yeah I know, I just don't see how that's gonna work out, unless the engines have had mods done to them to eliminate the tranny and clutch system then a divorced tranny is used. Otherwise you would have some interesting shifting issues and sync issues between the 2 engines.

It's hard enough to tune multiple engines to work together properly but to add in 2 trannies to drive 1 wheel, that's not something I would want to even try to tackle

R.F.

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paulmarshall

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Re: Twin engines
Reply #4 - 04/14/13 at 16:23:54

[quote author=13071653515152610 link=1365980151/0#3 date=1365981325]apache snow-FSO wrote on 04/14/13 at 16:07:17:

Those two yamahas have the tranny built into the engine.

yeah I know, I just don't see how that's gonna work out, unless the engines have had mods done to them to eliminate the tranny and clutch system then a divorced tranny is used. Otherwise you would have some interesting shifting issues and sync issues between the 2 engines.

It's hard enough to tune multiple engines to work together properly but to add in 2 trannies to drive 1 wheel, that's not something I would want to even try to tackle

R.F.[This is how]

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paulmarshall Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1268 Carterton,New Zealand Gender:	Re: Twin engines Reply #5 - 04/14/13 at 16:27:51 The link gives a little info. Apparently clutch operates rear motor only. http://bringatrailer.com/2011/06/17/ty-exclusive-early-70s-twin-engine-yamaha...
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Re: Twin engines
Reply #6 - 04/14/13 at 16:35:33

Looks like it was also built for static show only, with that last pic you posted, the middle stand that's keeping it upright is solid welded to the frame with no joints to fold it up or remove it.

I can see that it might work like that but can the one clutch actually hold the power of 2 engines??? who knows. I think this was just a concept build just to make a static display out of spare parts.

R.F.

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apache snow-FSO Serious Thumper Offline Posts: 509 Gender:	Re: Twin engines Reply #7 - 04/14/13 at 16:42:12 Its been done before. http://www.xs650chopper.com/2010/06/xs650-double-motor-two-motors/ http://motorcyclephotooftheday.com/category/dragbike/
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Re: Twin engines
Reply #8 - 04/14/13 at 17:14:04

[quote author=7B6F7E3B39393A090 link=1365980151/0#6 date=1365982533]Looks like it was also built for static show only, with that last pic you posted, the middle stand that's keeping it upright is solid welded to the frame with no joints to fold it up or remove it.

I can see that it might work like that but can the one clutch actually hold the power of 2 engines??? who knows. I think this was just a concept build just to make a static display out of spare parts.

R.F.[Yes I think you might be right]

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RidgeRunner13

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Re: Twin engines
Reply #9 - 04/14/13 at 17:32:17

Russ Collins built a top fuel drag bike back in 1973 using 3 Honda 750 engines called the Atchison, Topeka, & the Santa Fe. I saw it run at Bowling Green, Ky. that year when I rode up with a group from Jackson, Tn. Sonny Routt had a twin engine Triumph & T.C.Christenson a twin engine Norton.
Somewhere on my old computer I had a picture of a triple engine RD350. The front two engines had the cases cut to eliminate the transmissions. Cool

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apache snow-FSO

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Re: Twin engines
Reply #10 - 04/14/13 at 17:42:24

I was at Beech Bend drag way that year. But I was there from 1971 through 1976. That was a big three day event. The last year there were 30,000 bikers there and there several people killed. (not on the strip)

I remember Joe Smith and TC Christenson. Those were the days. I rode a Harley back then.

http://granddaddy-joe-smith-nostalgia.blogspot.com/

http://joesmithdragracing.blogspot.com/2010/09/joe-smiths-double-harley-david...

http://www.youtube.com/watch?v=EqwJzzlroLI

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houstonbofh Senior Member Offline SuzukiSavage.com Rocks! Posts: 420 Houston, TX Gender:	Re: Twin engines Reply #11 - 04/14/13 at 20:41:31 As long as you have a way to make solid shifts, and a Y on the clutch cable, you can run them both and just have a second sprocket to chain them together. And you are right about the sync being more complex, but not much more than 4 carbs on one engine.
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RidgeRunner13 Serious Thumper Offline haulin' the groceries! Posts: 649 Mustang Island, Texas Gender:	Triple Engines Reply #12 - 04/14/13 at 21:38:35
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wambr Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 610 Russia, Samara Gender:	Re: Twin engines Reply #13 - 04/14/13 at 23:32:36 also something similar. two engine from the Russian motorcycle m-72 with turbo. just a monster.
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28668 Tucson Az Gender:	Re: Twin engines Reply #14 - 04/14/13 at 23:51:34 If that guy does a burn-out, to heat up the tires... he's gonna' have a molten rubber skunk-stripe up his leathers and helmet... ...
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