mikstr

I was just wondering if anyone here has a well-founded estimate as to the power gain an engine gets from a well executed break-in? I had the tech who rebuilt my engine use the dyno breakin method put forth by Motoman (Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power). I have put on about 2500 km since then (no constant throttle or casual riding, constant on-off throttle with agressive acceleration and deceleration, along with three oil changes since) and the bike definitely feels stronger now that it did when it left the shop. The initial dyno numbers were 122 bhp and 77 lb-ft. I will be getting it dynoed again this summer but was wondering what I can resonably expect for final numbers following my methodical and patient approach at breaking in the new mill.

I have tried researching the matter (on Google using various searching criteria) but all to no avail.

cheers

D VTR RIDER

Micky,
I don't have a clue if the bike will produce more power but I was wondering if I can borrow it for the Ducati track day weekend in 2 weeks!! I'm a little down in the power department and your bike sure would make for a good duck hunter

Stevebis1

Just read your motoman link and I have to say he comes off as a bit of a wack job. Only thing I could think of was the pitchman 2:00am infomercials for the turbonator.
I really hope this works out for you - but I'm scratching my head here.

mikstr

Hi Steve,

I agree the dude comes off as a bit of an arrogant flake but I researched the matter quite a bit before handing over my (expensive) rebuilt engine to the tech with the said instructions. What I found is that many (many) reputable tuners use this or a very similar method, all with great results.

Stevebis1

That's cool - I'm guessing after the engine loosens up a bit you would see another 5%. For your build that will be damn close to 130hp. That along with all the lightened rotating and reciprocating mass you have paired away I'm sure she really grabs your attention.
You should have a lot of fun... !!

mikstr

5% would be very nice indeed.....