Originally Posted by stefan (Post 7048982)

Woher bist Du denn? Sportkreis Süd?

Originally Posted by Geberit (Post 7049138)

Ich bin näher als du denkst :tire:

Originally Posted by stefan (Post 7049166)

:rolleyes:

Originally Posted by DS Motorsport (Post 7044710)

Well basically I follow the same procedure with every engine and never had problems what so ever.
Break in, and the first race with the conrod the engine came with.
Mostly the engine is fully broken in after it's first race, at least in my case since I don't practice a lot.
After the first race I replace the conrod, and do a really good check up, clean up of the engine. With pretty much every engine I owned it wasn't needed to change the conrod a second time, because they were worn out before that point. My engines last around 10 liters after break in.

The bearings are really unpredictable, sometimes they become bad during break in already and sometimes they last 2 races.
When they start to feel different as when they were new, change them.
Don't wait until you see the (steel) balls become dull, then you have waited to long, and mostly you could see damage to the outside of your crank, it becomes hard to take it out.

When you change the bearings, put the crankcase in an oven, most of the time 45 min on 140C, then put the new ones in by using your crank to guide them in, and align them. I always immediately screw the flywheel on and rotate it. Since I have been doing it like this I feel the bearings last a little longer and the crank can spin more easily.
I wouldn't suggest using the cold-puller method, as this puts a lot of force on the components, and it's harder to properly align your bearings this way.

Originally Posted by HoboShop (Post 7049804)

Novarossi changes motor to often what is next the flash limited edition? Both flash engines make the same power. Out of the box the jp r9 has more top end then the flash motors. When novarossi makes something that is light years faster then I will buy a flash tuned. My Jp ro3 Is just as fast as the flash if not faster in certain areas and that motor had been out for 5 1/2 years. Vincents Jp ro3 clocked a higher top speed than all the flash motors that were at the capital classic last year he just had bad luck.

Originally Posted by fdjizm (Post 7057751)

Actually a drag modified 35 plus 21 nova will destroy the new flash lol, but of course that is not stock. :tire:

Originally Posted by HoboShop (Post 7049804)

Novarossi changes motor to often what is next the flash limited edition? Both flash engines make the same power. Out of the box the jp r9 has more top end then the flash motors. When novarossi makes something that is light years faster then I will buy a flash tuned. My Jp ro3 Is just as fast as the flash if not faster in certain areas and that motor had been out for 5 1/2 years. Vincents Jp ro3 clocked a higher top speed than all the flash motors that were at the capital classic last year he just had bad luck.

Originally Posted by wheruat (Post 7058677)

Hey whats up! yes the R03 is a beast of an engine i have one too! was wondering if you know where i can get a hold of a sleeve and piston set for that thing. I hear the 321p P/S set was a pretty good match but can seem to find anything for it. Let me know if you know of any alternatives for that engine. thx in advance

Originally Posted by HoboShop (Post 7058765)

The jp ro3 can take a piston&sleeve from the novarossi kangaroo, jp r9s, 35+21, max xl9 tq. Run the 9 port piston&sleeve in the ro3 and it will have more bottom end than the r9s jp and close to the same top end but much better runtime. Try to stay with a 35+21, jp r9s, or novarossi r1 kangaroo 2009-2010 etc for piston&sleeve and let it rip. The jp ro3 can and will stand the test of time just like the jp to3-t if you can find one.:tire: