Team UnorthoDUX Ducati based land-speed racers New pic pg 19!

Started by Duck-Stew, December 18, 2012, 05:55:51 AM

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Dirty Duc


OT

Quote from: Dirty Duc on March 08, 2013, 09:06:35 PM
I take it from your attitude you'll be there to help wash it for photo ops? :-*  :P
MY attitude?  Wasn't me who posted the scowling reply.

A little levity, boys, this is supposed to be fun, not the Lord of the Flies...


Dirty Duc

Sorry, the joking tone didn't come across...

It was intended to be levitatious.


Duck-Stew

Picked up a 749 fuel tank, a white GSXR front wheel (the super-skinny Honda wheel will go on later this season), an 848 cylinder head for air-flow research (2014 season) and a fiberglass 'Busa fender which will be easier to mod than the plastic OE fender we have in the photos thus far.

CLOSER....  & closer still!
Bike-less Portuguese immigrant enjoying life.

JohnEE

Whats the plan with the exhaust? 749/999 OEM is under tail isn't it? It's Looking good!  [thumbsup]

Duck-Stew

Quote from: JohnEE on March 11, 2013, 07:15:52 AM
Whats the plan with the exhaust? 749/999 OEM is under tail isn't it? It's Looking good!  [thumbsup]

2x 50mm head pipes merging into a single 66mm pipe heading into a reverse cone megaphone exiting low mount on the right side.  Along the way, it picks up a wide band O2 sensor then a small pipe to scavenge windage from the crankcase.  The undertail OE design isn't needed for the ground clearances of salt flat racing so we ditched the OE style & all the additional bends...
Bike-less Portuguese immigrant enjoying life.

ZLTFUL

Avatar courtesy of www.mybadco.com
2012 Panigale 1199
2003 KTM 640 Adventure

zooom

I guess with that exhaust set-up, you shouldn't experience any issues of restrictive flow on WOT at the top end then?
99 Cagiva Gran Canyon-"FOR SALE", PM for details.
98 Monster 900(trackpregnant dog-soon to be made my Fiancee's upgrade streetbike)
2010 KTM 990 SM-T

Raux

the run up distance is long enough and the traction low enough to not have to worry about low end tq losses and be able to tune the system strictly for high RPM operation.

zooom

99 Cagiva Gran Canyon-"FOR SALE", PM for details.
98 Monster 900(trackpregnant dog-soon to be made my Fiancee's upgrade streetbike)
2010 KTM 990 SM-T

JohnEE


Duck-Stew

Quote from: JohnEE on March 12, 2013, 04:38:36 AM
Mind explaining this part?

High velocity exhaust creates a vacuum which sucks out the aerated oil from the crankcase. That negative pressure allows the pistons to move around more freely.

Can't run that on a street bike as you're sucking aerated oil into the atmosphere. Road racing won't allow it either. Legal @ drag racing & Bonneville. 

Totally not worth it in a street bike as I suspect it's only worth 0.5-1 HP at a maximum. 

(if that much.)
Bike-less Portuguese immigrant enjoying life.

Raux

Quote from: Duck-Stew on March 12, 2013, 06:02:55 AM
High velocity exhaust creates a vacuum which sucks out the aerated oil from the crankcase. That negative pressure allows the pistons to move around more freely.

Can't run that on a street bike as you're sucking aerated oil into the atmosphere. Road racing won't allow it either. Legal @ drag racing & Bonneville. 

Totally not worth it in a street bike as I suspect it's only worth 0.5-1 HP at a maximum. 

(if that much.)
it's enough for the panigale to have a positive crankcase suction

ducpainter

Quote from: Raux on March 12, 2013, 06:29:13 AM
it's enough for the panigale to have a positive crankcase suction
Every bike with a breather connected to the airbox has that...no?
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