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[jimsfatboy2]

I have a new 124 s&s built in my 2013 harley davidson fatboy. all timken conversion in bottom end and woods 9f gear drive cam, I am wondering what is the thought process on breaking in a new motor. does it have to be broken in so many miles before it can be dynoed

[VANAMAL]

Most just break in on dyno.
Jealous

[Yellow09SERG]

Just finished a 117. A few heat cycles and off to the dyno

[grc]

Depends on who you plan to have do the dyno work.  A good person can do the break-in on the dyno under controlled conditions prior to doing the final tuning.  I'd suggest you talk to your tuner to see if he's someone you trust to do this right. 

Jerry

[grayghost731]

Depends on who you plan to have do the dyno work.  A good person can do the break-in on the dyno under controlled conditions prior to doing the final tuning.  I'd suggest you talk to your tuner to see if he's someone you trust to do this right. 

Jerry

x1   

[HD Street Performance]

Take it to Blackhills Ken, Rockaway, NJ
http://www.blackhillscustomparts.com/

[JazMan]

Depends on who you plan to have do the dyno work.  A good person can do the break-in on the dyno under controlled conditions prior to doing the final tuning.  I'd suggest you talk to your tuner to see if he's someone you trust to do this right. 

Jerry

Agreed , or break it in yourself either way if you want it to last

[FlaHeatWave]

I have a new 124 s&s built in my 2013 harley davidson fatboy. all timken conversion in bottom end and woods 9f gear drive cam, I am wondering what is the thought process on breaking in a new motor. does it have to be broken in so many miles before it can be dynoed

What does the person that built the Engine say???

[icy]

What does the person that built the Engine say???

Thats who you should talk to first

[Texas 103]

Just finished a 117. A few heat cycles and off to the dyno

X-2 Broken on Dyno , controlling  temp, hot as mine got was 215, then tuned, Ed calls that a break in tune , only way to go