Issue link: https://cp.revolio.com/i/1528018
WheelsOfGrace.com | Volume 15 Issue 6 | 21 TECH Q&A Air Filter Service After installing a "open" performance air cleaner "filter" how often should you change the filter since it's open to more elements? Our Friends over at Wimmer Custom Cycles had this to Say: That of course depends on your riding area and style. Wimmer filters never require oiling, thus they can go much longer without any cleaning. When they do get dirty, simply wash with warm soapy water and reuse. EFI Mapping and New Exhaust? I had pretty much given up on buying a new HD and decided to keep my 02 Road Glide and 05 Road King Classic forever. My question has to deal with EFI mapping and new exhaust systems. I have Reinhart Exhausts systems on both of my bikes. If I buy a 2007 Ultra and want to put Rinharts on it, I know it needs to be remapped but is that capability still possible? EFI mapping seems to be so simple. I would like to see info about closed loop systems because I think that is really the way to go. By Mark DiPietro From Our Friends at DynoJet You still have the capability to remap your fuel injection on the 07 models even though they have an O2 sensor. To get the full potential out of your bike and the fuel controller that you are using then it is best to override the O2 sensor. The PCIII offers you O2 sensor eliminators which allow you to remove the O2 sensor from the bike completely while still keeping the ECM from triggering a FI light. When you do this, you will have full control over the entire fuel curve range. Although running a closed loop system may sound like the ideal way to go, be careful. Since the entire way the bike runs is based on the O2 sensor reading you need to make sure the O2 sensor is getting a good reading. An intake or exhaust leak will render your fuel curve useless and so will a set of short pipes due to reversion. Also, they do not allow you to map each cylinder individually which can be a substantial performance gain on most applications. Also, what happens if the sensor goes bad, or you get a bad tank of gas? Now the ECM has been rewritten based on incorrect data. When used properly there are some closed loop systems that have the ability to work well. Having your bike put on a dyno and mapped to your exact setup is still the only way to know for sure if your bike is optimized 100%. Rushing Wind Ministries & Bikers for Christ Rushing Wind Ministries & Bikers for Christ M / M M / M Intl. Intl.