Nightrider O2 IED's - Field Test
#321
03-06-2008 | 10:00 AM
Road Master
Joined: Oct 2007
Posts: 781
Likes: 1
From: Cave Creek, AZ
RE: Nightrider O2 IED's - Field Test
Oh, I forgot to add something - about elevation changes.
Your EFI adjusts fueling via the MAP Sensor (manifold absolute pressure). As you increase elevation, the amount of pressure the sensor feeds back to the ECU is less, because the atmospheric pressure is less at higher altitudes. So your ECU will adapt to elevation and reduce fueling to compensate for less air.
Your EFI adjusts fueling via the MAP Sensor (manifold absolute pressure). As you increase elevation, the amount of pressure the sensor feeds back to the ECU is less, because the atmospheric pressure is less at higher altitudes. So your ECU will adapt to elevation and reduce fueling to compensate for less air.
#322
03-06-2008 | 10:13 AM
Road Master
Joined: Mar 2007
Posts: 1,177
Likes: 21
RE: Nightrider O2 IED's - Field Test
ORIGINAL: Rider57
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
#323
03-06-2008 | 10:17 AM
Road Master
Joined: Mar 2007
Posts: 1,177
Likes: 21
RE: Nightrider O2 IED's - Field Test
Many codes have a baro correction that adds fuel to account for the lack of back pressuere that the exhaust sees at higher altitude. Less exhaust back pressureat the very least changes the scavanging and this results in a change in VE. I am suspect that Harleymay dothis as there is a baro number in the data logs.
Way cool stuff.
AW
Way cool stuff.
AW
#324
03-06-2008 | 10:23 AM
Road Captain
Joined: Feb 2008
Posts: 571
Likes: 0
From: Colorado
RE: Nightrider O2 IED's - Field Test
ORIGINAL: MotorMedic
Thanks again Rider. So this may bea stupid question, but will installing the IEDs in any way damage or negatively affect my bike. I'm hoping to pick up my 08 EGC soon and that is my biggest concern. This is my first HD and I'm pretty convinced that the IEDs will make it even better, but I certainly don't want to take any chances. Thanks again to all of you for this enlightening thread.
Joe
Thanks again Rider. So this may bea stupid question, but will installing the IEDs in any way damage or negatively affect my bike. I'm hoping to pick up my 08 EGC soon and that is my biggest concern. This is my first HD and I'm pretty convinced that the IEDs will make it even better, but I certainly don't want to take any chances. Thanks again to all of you for this enlightening thread.
Joe
#325
03-06-2008 | 10:29 AM
Road Captain
Joined: Feb 2008
Posts: 571
Likes: 0
From: Colorado
RE: Nightrider O2 IED's - Field Test
ORIGINAL: whittlebeast
How is that huge change in top end power explained? All the change is above 4000 RPM
ORIGINAL: Rider57
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
No 2 engines are alike. Little differences produce different results. Couple that with test parameters and you get varied results. On a warm summer day here in the mountain areas I may loose 4 or 5 HP, maybe more. Running gas with no MTBE or ethanol helps also. If you really want to see a change, try running a tank full of 110 aviation gas and see the difference.
#326
03-06-2008 | 10:38 AM
Road Master
Joined: Dec 2006
Posts: 1,058
Likes: 6
From: Omaha Nebraska
RE: Nightrider O2 IED's - Field Test
ORIGINAL: whittlebeast
How is that huge change in top end power explained? All the change is above 4000 RPM
ORIGINAL: Rider57
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
#328
03-06-2008 | 10:46 AM
Road Master
Joined: Mar 2007
Posts: 1,177
Likes: 21
#329
03-06-2008 | 11:45 AM
Road Captain
Joined: Feb 2008
Posts: 571
Likes: 0
From: Colorado
RE: Nightrider O2 IED's - Field Test
ORIGINAL: geargrinder
One possibleexplanation is,if the engine's original A/Fand ignition advance was incorrect, installing IEDs and relocating the IAT will change the A/F atWOT thruthefuel changes itre-learned during closed loop and applied to open loop and the IAT relocation will affect fuel and ignition advance at WOT higher RPM. The luck of the draw could enhance the engine's performanceabove 4000 RPM if these changeshelped to correct an incorrect tune, not very scientific, maybe just lucky.
ORIGINAL: whittlebeast
How is that huge change in top end power explained? All the change is above 4000 RPM
ORIGINAL: Rider57
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
This one may be my BooBoo. I have before and after dyno runs. I will post them as soon as possible. Should have thought of that!
Ok. Here is the dyno chart. Bottom charting is stock, top charting is with the home made IED's installed and the IAT relocated into the airbox.
I am going to stay on this "project" until I can verify and maintain the results over the course of a riding season. If there are any big changes I will post them here.
#330
03-06-2008 | 11:50 AM
Road Captain
Joined: Feb 2008
Posts: 571
Likes: 0
From: Colorado