Not familiar with cost of dynoing a carb bike. My fi bike costs $275 to dyno/remap with a PC111r.03fatty said:Thanks. I plan on getting it dyno tuned after I put on the Thunderheaders. A dealer by me quoted $200 for dyno tuning and $35 for rejetting (if needed), and $8 for a new jet (if needed). Does this sound decent? I believe they know what they are doing and they seem to have experienced technicians.
Another shop by me has it for $175 which would include the rejetting but I haven't been happy with their service in the past and I wouldn't expect anything different now. I think they have one certified technician.
03fatty said:Quick Question: I have a 2003 Fatboy, Carb, with a Stage 1, and SE II pipes ( 2 into 2). I just purchased a set of 2 into 1 Thunderheaders. What can I expect to gain (if any) in HP and Torque? Any input is appreciated. Thanks.
03fatty said:I have read about "tuning" a baffle but can't say I quite understand what is being done. Is it just a matter of bending it/drilling it to either increase or restrict the exhaust flow? How easy is it to "tune" the thunderheader baffle?
What I watched Doc do and explain went as follows. He put the bike on the dyno and did a run to get a baseline to work from. Then he inserted a long screwdriver in the pipe And slightly bent the baffle to restrict flow and thus increase back pressure. Next he did another dyno run to observe what he accomplished. He did this four different times until his numbers started to fall off then he went the other way. He did six runs just to tune the pipe and did a total of 33 runs to tune the bike. I had been running the TH and build about a month before getting Doc to tune it so I had a pretty good seat of the pants idea how the bike ran before and after. Bike ran great and pulled hard but the biggest seat of the pants difference I noticed after the tune with the pipe was at crusing speed the pipe was not nearly as loud.