purely playing with engine ideas - short stroke big bore

[Raux]

S4RS motor in an 888/851 era chassis... hmmm

[stopintime]

998/999 engine

998/999 2004 engine from first owner!!!!!! !!!,new inspection with valve adjustment,light billet aloy flywheel,16500 km total,from first owner !!No race track use !!
EUR 2480,-



Or... for the win
   
1078 ccm Testa Stretta 998R-999R

998R-999R Testa Stretta engine with 1078 ccm ,182 HP and 135 Nm with 58 mm throttle body,174 HP and 126 Nm with 54 mm bodies.3200 kms on , 1000kms with this Tuning and driven from us on the track. Engine with absolut fantastic throttle response !!!!Complete Tuning with bigger valves,headporting,pistal pistons,racing gearbox,Pankl H-Beam conrods titanium aso.!Only for track use !!!Not for Highway use !!! New adjustment and belts of course ! Excellent condition !!
EUR 11300,-

 

[Raux]

you're looking at Kaemna's site huh?

[stopintime]

you're looking at Kaemna's site huh?

Almost daily 

[brad black]

i typed a reply a couple of days ago, then the laptop went flat and lost it.

the long rod lets the piston dwell longer around tdc and move away again slower, so you get the gas pressure held for more of the crank rotation.  traditionally works well on higher rpm motors.  in circle track and drag racing short tracks and drag motors (trend is going back to i believe) tend to use short rods, long track and top speed motors long rods as a generalisation.

plus the piston can be shorter and therefore lighter with a longer rod.

[brad black]

S4RS motor in an 888/851 era chassis... hmmm

there's quite a few on the 851/888 forum.

[Raux]

I'm so behind the power curve 

[Duck-Stew]

I'm so behind the power curve 

Not by much I'd reckon...

I've seen one S4Rs into 888 build that was just amazing...  Can't remember where though. 

[brad black]

http://www.ducati851and888.com/showthread.php?5257-Projet-888-S4RS

http://www.ducati851and888.com/showthread.php?4240-888-999-conversion.

marvin has one also