Join Date: Oct 2010
Location: Puy de Dome, , France
'99 620SSie : 951cc engine
for a few years I ride in competition (little endurance, 300 Miles, 4h30) with a 620 equipped with a stock 900ie
I am assembling a new engine:
- 748R crankcase
- 1000DS frank
- 900 conrods
- 900 cylinders with JE Pistons
- 900 cylinders head with head porting
- 748 gearbox
- 999RS fmywheel
I made some modifications on the case for the rear piston jet cooling and NJ207-ECP-C3 crank bearing
For the race (500 Miles, 6h30 this year) I intend to assemble the engine with a volumetric ratio of 11.5 : 1 to use SP98 gasoline
With pistons I currently have 13.4: 1 with DH 1mm
And here I have a dilemma, either I only change the pistons, or I put DH 1.4mm + modification of the pistons.
What do you think with the Ducati connecting rods?
'99 951SSie track Bike
Last edited by SamC; Apr 15th, 2019 at 12:48 am.