She said it wouldn't fit

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Cooling might be a problem. The rear engine is lower by one inch hoping the air will flow around the base of the front cylinder. Longevity is not the goal. Lots of thoughts can not decide on end result. When was the last time you were at the petrol station and some cat pulled in on a twin engine bike?
 
Let me see now, uhhhhh,
Yup, Never..................
 
If you have an old MkIII airbox, saw the intake horns off it, mount them just in front of the rear cylinders with a couple of tabs bolted to the cylinder base. COOL! Gen-you-wine Norton air scoops!
 
what's the goal for the build? is it going to be a drag bike, LSR, or god forbid, street legal?
 
Re: Cooling

Sorry, but funnel shaped air scoops will not move or redirect any more air than what would normally pass thru the throat.

Should one mount a funnel in front, with a tube of diameter equal to the funnel outlet, the air exiting the tube will be of the same volume as if the tube alone were mounted at the front.

I think cooling can be accomplished in this application, by vertical vanes properly placed, to redirect air towards the rear engine.

I know, intuitively, one would expect a funnel to gather air, and deliver a super gush, but physics works by Laws, not intuition.

Slick
 
texasSlick said:
Re: Cooling
Sorry, but funnel shaped air scoops will not move or redirect any more air than what would normally pass thru the throat.
...
I know, intuitively, one would expect a funnel to gather air, and deliver a super gush, but physics works by Laws, not intuition.
Click to expand...
Yeah, but you are not considering the cool (no pun intended) LOOK of it...
 
Thanks to all for pics and ideas. The trans I thought would work will not. Back to staring and scratching butt. Be a couple weeks till get back to junk yard and search again!
 
have you thought about a harley transmission? i know a guy who put one on behind a triumph pre-unit, and it came with five speeds and an electric starter.
 
that's what I'm after I never knew there were that many HD 5 speed transmissions
 
texasSlick said:
Re: Cooling

Sorry, but funnel shaped air scoops will not move or redirect any more air than what would normally pass thru the throat.

Should one mount a funnel in front, with a tube of diameter equal to the funnel outlet, the air exiting the tube will be of the same volume as if the tube alone were mounted at the front.

I think cooling can be accomplished in this application, by vertical vanes properly placed, to redirect air towards the rear engine.

I know, intuitively, one would expect a funnel to gather air, and deliver a super gush, but physics works by Laws, not intuition.

Slick
Click to expand...
Yes. But you have the option of fitting a small electrical fan. Besides, once you get up to 60 mph the air will be forced fed into an air scoop, it certainly works on shoveling it into the the inlet manifold - just try it!
 
Bernhard said:
Yes. But you have the option of fitting a small electrical fan. Besides, once you get up to 60 mph the air will be forced fed into an air scoop, it certainly works on shoveling it into the the inlet manifold - just try it!
Click to expand...
That's kind of what I was thinking, electric fan with a thermostat or even just an on / off switch so that when you're going slowly or stopped you could flip it on and get some degree of cooling air passing over the fins
 
You also have the option of fitting a fanbelt driven fan - that is if your primary drive is exposed with a belt drive system.
 
Which ever way you go you need to strechhhhh that frameeee, a good mate of mine who got me into Norton's and Featherbed frames has built a few twin motor Triumphs just can't fit them in a stock frame without lots of mods and reinforcing, he never did get one on the road as a road bike, but he done a few drag bikes, he builds the Triumphs with Norton one piece cranks and makes his own crank cases.

Ashley
 
Speaking of Harley transmissions, that's what this guy used in his twin engine Norton, and I've seen a video of him kick starting it.

She said it wouldn't fit


She said it wouldn't fit


Ken
 
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