Will this cool the 07?
I had just ridden 150 miles and ran into major road constructiion. Sat there for 15 minutes and my legs could not take it, so, I shut off the engine.
I don't understand why they'd do the muffler scheme differently for the RG v. others. Doesn't make much sense. I figure the left "muffler" is the way it is (at least on the RK which is my only source of first-hand knowledge) to help produce their "commanding deep tone"; to limit possibility of back-washing the O2 sensor, causing an enrichment under closed-loop; to limit heat at the wye by biasing flow to one side; or some combination of the three. If any of that is "true" it should be the case for all the recent touring family.
I understand the mufflers were comparable L/R up 'til '06, thus my reasoning for some of those possible causes for [I meant "due to"] the change to dual O2 sensors in '07.
just my .02
Anyhow, I think I'm gonna follow everyones advice and pick up the TD Fullsak's. Thanks for the input... T
The Best of Harley-Davidson for Lifelong Riders
My 07 FLHT experience: (built 07/06 and purchased 08/06)
Bike ran fine stock, no heat issues at all other than what I expected when having more cubic inches. I expected it because when I went from a 1200 sporty to a softail, I thought that big twin was gonna burn me up.
In January I put Rush slip ons with the 2.25" baffles, bike ran great untilthe heat and oxygenated fuel arrivedin May. I had serious pinging under load and thought a stage 1 was the solution. Added the AC and the download, and man talk about heat!! Took care of the pinging, but it was hotter than hades in town and killed the lower end.
Put the stock air cleaner back on, went to another dealer that was kind enough to verify the correct download was loaded. It was, so I left the stock AC onto keep it richened up. Rode this way until the $140.00 air cleaner sitting on my kitchen counter got the better of me. E-mailed Rush and told them my story, they wrote back that 2.25" baffles won't fly in an 07 w/o a SERT or similar and suggested I go with 2.0 baffles, stage 1 download and stock air cleaner, or 1.75's with the SC air cleaner.
I ordered 1.75" baffles, which took forever to arrive and installed them a few weeks ago, leaving the stock air cleaner on thinking runninga little rich can't hurt. All was well except for occasionally the bike would load up at idle when it wasn't fully warmed upand stumble a bit at take off *sigh*..... this past Sunday I put the screamin' eagle air cleaner back on and found that Rush was spot on with their advice: 1.75" baffles and the stage 1 download w/air cleaner. The excessiveheat is gone, the bike runs great at all RPM's and Ican roll on in sixth gear from 75-up with zero ping. If I hammer it to wide open throttle in sixth, it willping a little bit so I don't dothat anymore.
One other thing that helped with the ping was switching from Chevron to Circle K (of all places) gas.Ifound out laterthat Circle K gas is provided by Shell.
If it matters, my bike is my daily driver and only means of transportation,and was ridden through out all the experimenting, so it wasn't like I had an unrideable $20,000 bike sitting there until it ran to my satisfaction.
Keep on keepin on and ride safe.
the mufflers on the 07 touring bikes are exactly the same there is no difference with the baffling or otherwise.
teach: congrats! sounds like you've got something decent to work with. Are you absolutely sure they are take-offs from an '07?
Time2ride: I sure appreciate you fleshing that story out like that. I've read a review somewhere of a project bike where going with a high-flow air-cleaner assembly netted a small loss of lower-end torque over the stock unit. Fortunately for me, the only time I've ever noticed pinging was the one tank of Shell fuel I got that was only 89 octane (the highest the station had). I was running on fumes at the time, literally, and figured it couldn't hurt too bad. Last time for that! Of course I haven't tried again since the 2" Rush, K&N filter assembly, and PC-III were added. Maybe some day when I feel adventurous...
For about 1000 miles I ran just the mufflers and it ran okay for the most part; maybe a tad hotter around town. Didn't notice anything at all like a loss of power anywhere in the rev range. There might be a slight loss of lowest-end now with the K&N gear up front but it's not much if any. I'm liking the ride as well as anything I've ever owned.
The only downloads I've had are from my laptop to the PC-III.
Have you kept track of your fuel usage throughout your ordeal? I'd like to know what it is you're getting. I started at about 35 and was getting a good glimpse at the low 40s when I did my 1k and put the mufflers on. It seems like it worked its way back down to the mid 30s again, where it stayed with the fueler/A-C and I'm having a bit of a problem getting it to trend back up again. Usually (with a good deal of in-town riding, admittedly) about 37 lately.







