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Thank you all! All very good advice.
The bike is not at the Harley dealership sinceI live in the boonies, so I will get the pipes installed pretty cheap.
As to the other advice I think I will ride it after the new pipes are on and see how she rides, and then go from there.
Good to have all your advice if the thing don't work right!
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From everything I've heard, you don't need any type of fuel management with just the pipes andonly when you've replaced the AC along with the pipes
This is definitely true with most slipon mufflers. However, when you get into full pipes, it becomes less true. I ran my SE II's with nothing else for a long time with no issues or popping whatsoever. I changed them to V&H's straightshot slipons which are VERY open mufflers and started to get some popping even though they were only slipons. I had 2 directions to take. I could have probably added V&H quiet baffles and kept everything else as-is or I could add a fuelpak. When I called V&H's about the fuelpak, they told me that if I installed one, it would require a high-flow air cleaner as none of their thousands of dyno-tested/developed settings were done with a stock air cleaner. So, I jumped online and found a seller that had both a stage 1 a/c and a fuelpak for sale and they agreed to ship them both to me in one box. It took me about an hour total to install both myself (very easy although the FP is a tight fit). Popping was immediately gone and I had an instant improvement in throttle response and noticed a much nicer ride in the higher gears not to mention the engine runs noticeable cooler. When I changed out to Big Radius pipes, I opened the FP cover, reprogrammed to the new settings in a couple of minutes and I was done.
I've heard people complaining about the FP but my bike runs great with it. My only condition on buying it was that I definitely don't intend to ever go beyond stage 1 with my motor. Fuelpak, IMO, is fine for stage 1 but it really isn't designed for anything higher performance than that.
When you can significantly flow more air in and/or out of your motor, you need to adjust for more fuel. True, this is more critical for flowing more air in than out. But, when you get into full pipes or wide open slipons, you are starting to push the envelope with the outbound flow and that's why you get the popping, etc.
Just my 2 cents, but you spent $12k on the bike and $600 on the pipes. Spend a couple hundred more and do it right without taking any chances.
The exhaust and intake are generally a package deal: more air in....more air out. When you have more air in and out, more fuel is required to adjust the mixture richer. I went with the PC III, Big Sucker and Big Radius and love it. Also had it dyno'd when I was at Myrtle Beach Bike Week last year to get the fuel setting customized for my equipment. End result is I love the power and sound
Just back from the garage and the new pipes are on and sound awesome!
The mechanic says the bike was set up with stage 1 and for screaming eagles even though the stock pipes were put on. The bike runs great in short tests without having anything done, no pop or backfire.
The mechanic suggests we wait and see after a longer test and the pipes get really hot!
That was easy but with the stage 1 & new pipes you really should put a fuel mgt device on it. The Fuelpac is very simple even a caveman could do it & it's fairly inexpensive. The power commander isbetter but you will double the cost minimum for the unit & set up. Your choice but when that hot humid air comes around your going to wish you had one.
O.K. so I bought this 2007 DYNA Super glide, very basic model, a couple of weeks ago and the first thing I wanted changed was the pipes.
I decided on Vance and Hines big radius and they were ordered and delivered to my local HD mechanic, and they are going on today.
So here is my question, along with these pipes $600 pipes, Vance and Hines recommends their $295 electronic gas regulator.
Do you have to have that?
What if you don’t install that?
Austiny,
I have a V&H FuelPak for sale on the Classifieds. I bought it new from West End Motorsports in January for $259. However, I was not able to make it fit under the seat of my 2009 Street Bob, so it has not even seen the ignition switch turned on. You can have it for $200. If you're interested, let me know and I'll ship it to you. E-mail me at steve.crawford@dom.com.
RE: VANCE AND HINES BIG RADIUS?
& it's fairly inexpensive. The power commander isbetter but you will double the cost minimum for the unit & set up. Your choice but when that hot humid air comes around your going to wish you had one.
