When I purchased my new SGS back in July, and the only performance-upgrades that I opted for at the time were 4" Rinehart slip-ons and the dealer 'flash'. Fortunately, the bike has been running great from the start and I am taking it in this weekend for it's first maintenance.

While it is going to be in the shop, I figured that it would be a good time for a little more throttle-response, growl, and a cooler-running engine, so this week I ordered the Screaming Eagle Agitator air cleaner, Rinehart Slimline dual headers, and a Screaming Eagle Pro Tuner. Much to my happiness, the HD dealer just called me to to say that all of the parts have come in, but now I come to find out, that they do not have a Dyno machine on the premises. WTF? My local, 'ratty' motorcycle repair-shop has a dyno machine and the Harley dealer doesn't? Is this normal?

Now I am wondering.....can the dealer properly tune my bike just by using a canned program? Or, am I going to have to spend more money taking it somewhere else in order to get it tuned properly afterwards. Any opinions?

 

I'm sure you'll get a lot of mixed replies. My take is the dyno is the sure fire way to get the best performing bike. However, it boils down to who is doing the dyno. Since my dyno mine runs like a totally different machine.

 

The canned map will be fine for a stage one but after you get the bike back you can run several auto tune sessions and fine tune the VE tables. Sure a dyno tune would be the best possible tune as long as the person tuning it knows what they are doing. But for a simple stage one it's not absolutely necessary. I would guess that out of all the bikes out there with stage one hardware very few are actually dyno tuned. Out of the five guys I ride with on a regular basis I'm the only one that has even bothered to auto tune, they all just installed the canned map and left it at that. If you go to the technical section of forums on here and look at the SEPST thread there is an easy to follow step by step on auto tuning with the SEPST... HD called it smart tuning.

 

Thanks for your feedback Webo