Tuned a PV recently for a guy on a 96" with 551 cams and basic 2-1-2 (H style) pipe with Xtreme slipons who started of with a map from a leading PV dealer and did nearly 60 data sessions and bike still ran like crap. I couldn't believe how much advance timing was in the canned map and the owner claimed he'd never touched the timing tables, only the fuel tables. Another one I just finished from this forum started life as a 2005 SEEG with Fuel Moto PC III tuner with a canned map. Bike consisted of RH TD's and SE air cleaner and the map could not have been any further off and ran I don't think. With only 9500 miles on the bike, the cylinders were so bronzed over we had to punch it to a 106. Had Sachs do the heads, put Cyco tensioners in and a set if S&S 570 EZ's and rolled it up on the dyno and broke it in and tuned it with TTS. All of this "auto tune" hype is very misleading and highly overrated (good for sales, bad for bikes IMO). A custom dyno tune in the hands of a competent tuner who is willing to spend the required time to tune one right makes "auto tune" look really bad most of the time. I understand "auto tune" sounds great but it's not what it's cracked up to be and I will never understand a person who buys a $15-35k bike, then buys more premium parts and a premium tuning device and then skimps on the $425 dyno tune. It pays off in spades most times by running cooler, running much better, smoother, more responsive, potentially lasting longer and allowing you to unlock the fun factor you bought the bike for in the first place. I see a movement in the industry to get away from EPA compliancy all the way to extent of getting MUCH larger cubes and increased compression. I'm all for it but IMO even a bone stock bike runs MUCH better with a proper dyno tune and honestly, the guys that get they're stage 1 bikes tunes are usually the ones who are most impressed with how much better it ran by just giving the engine what it wants, not what the EPA wants it to have.
Sorry, been tuning lots of bikes, working long hours and not a good nights rest last night but I still believe what posted above from seeing it on a regular basis.
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Topic: Power Vision Dyno Jet Map HELP! (Read 1415 times)