BAMF
BAMF New Reader
1/13/09 12:21 a.m.

http://thekneeslider.com/archives/2009/01/12/ducati-v-one-twin-to-supercharged-single-conversion/

I thought this was pretty cool.

petegossett
petegossett GRM+ Memberand Dork
1/13/09 7:19 a.m.

Wow. I don't think I've ever seen that idea before.

Jensenman
Jensenman SuperDork
1/13/09 7:25 a.m.

Now that's thinking 'outside the box'. Very interesting idea. I wonder how hard it would be to do the same thing with a rotary, i.e. a 3 rotor engine using, say, the center rotor to supercharge the two outer rotors? Maybe if I hit the lottery we will find out.

HappyAndy
HappyAndy Reader
1/13/09 8:08 a.m.

He says that it makes more power than the orriginal twin, but IMO it adds a lot of complexity and weight for only modest power gain, If this were run side by side with the orriginal bike I wonder if it would actuly be any better? and why not just turbo the twin if you want more power? I know the answer is because thats been done before and this hasn't. But the real question is why would any one want to change the ducs awsome engine noise, isn't that one of the biggest reasons to own one? I'm not knocking his creativity, I just think its more novelty than actual performance enhancer.

OTOH: If for racing purposes it were classified as a 500cc single and not a 1000cc twin it could be a game changer, but good luck with that.

4cylndrfury
4cylndrfury New Reader
1/13/09 8:49 a.m.

I like the 10 second 40psi burst capacity using a store of compressed air vs a constant supply and BOV. I wonder, could a tank with sufficient volume like this be utilized in an automobile? Or is No2 essentially accomplishing the same thing...i.e.HP in a bottle?

discussion...go

Thinkkker
Thinkkker SuperDork
1/13/09 9:11 a.m.

But Andy, you add the weight of a turbo, or supercharger, or......... Its all in how you do it.

If his claims are correct though, thats a 15% increase in power. Which, for a relatively free mod is pretty sweet.

Autolex
Autolex Reader
1/13/09 9:28 a.m.
4cylndrfury wrote: I like the 10 second 40psi burst capacity using a store of compressed air

ummm, thats 40 BAR (according to the article) which is around 580 psi.

Bart Crauwels wrote: Another cool feature is the air tank under the seat, limited to 40 bars, which is good for a 10 second burst of compressed air when acceleration begins after which the blower’s output kicks in.

4cylndrfury
4cylndrfury New Reader
1/13/09 9:46 a.m.
Autolex wrote: ummm, thats 40 BAR (according to the article) which is around 580 psi.
eye yam wee todd it Nice catch...but the question I pose remains the same.
aircooled
aircooled Dork
1/13/09 11:36 a.m.
petegossett wrote: Wow. I don't think I've ever seen that idea before.
Jensenmanwrote: Now that's thinking 'outside the box'. Very interesting idea

Yes, I don't think I have seen that idea since, what, 1936 or so?!

The original engine setup for the VW beetle had two of the cylinders supercharging the other two cylinders.

Interesting application of a very "retro" idea.

Autolex
Autolex Reader
1/13/09 12:01 p.m.

i wonder if the triumph triple's could do something like this? (one cylinder compressing air, the other two making the power to do so.) I wonder what the fuel economy is compared to just the original version?

Nashco
Nashco SuperDork
1/13/09 12:28 p.m.

If you guys think that is cool, you might want to check these out...this kit has been around for decades:

http://www.dunnrightinc.com/

There are lots of neat ways to make engines compress air...been done for many, many years!

Bryce

petegossett
petegossett GRM+ Memberand Dork
1/13/09 12:54 p.m.

Yeah, it kinda makes that "Direct Exhaust Injection" or whatever it was seem less assinine.

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