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[TexTaz]

When it rains in Texas on a July Sunday there is only one thing to do, tear the bike down an go to work.   But, the story begins trying to get my pipes.  Chose Rineharts because there are several shops advertising that the '06 FL true duals come with "dual 02 sensors".  After having Drag push my delivery back every day I ended up buying from Fanatic Cycle.  Good price and nice guy.  My pipes show up and I pull them out and only find one port for an O2 sensor.  I  am not happy    Call Fanatic, he doesn't understand, he never opens the boxes  :-/, but he'll call Drag and find out - really was a nice guy.  In the mean time I decide to call Rinehart direct.  I learn that only the '06 Dyna pipes have "dual" O2 sensors & that they are aware of all the misleading information shops are putting out.   In regards to the guys at Fanatic - I'm not impressed that he didn't know about the product and that he's posting misleading informationo, but he was apologetic and was more than willing to take them back and work with me.

On that rainy Sun. we started putting on the pipes.  Drilled out the back head pipe and welded in the O2 bung and then intalled the pipes.  Heat shields were a pain, but with the help of WFP's install post this went smooth.

Next step was installing the Daytona Twin Tec - this is a closed loop controller (thus the requirement of dual O2 sensors).  This was an easy install and calibrating the sensors was easy.  Downloading the software was a easy and establishing communication took just little of manipulation of ports.  

Then it got interesting.  We couldn't get the bike started.  We kept reading the instructing and making adjustments, but no luck. We finally decided that we needed to give it a break and and  [smiley=drink.gif] heavily to clear our minds.  Then the next morning we called Daytona Twin Tec for help.  We were properly chastised for not reading the directions thouroughly, then told two adjustments and whaddya know - fires right up  8-)  

I did the Autotune.  That means that we did a quick check in the garage to make sure that we weren't running too lean.  Made a couple adjustments to richen it up and then off for a 15 mile ride.   Back to the house, plug in the computer, download the data and then the software makes all the corrections and you upload a new program (aka: map)

I think this is a slick set up.   The more data you collect the more dialed in the program becomes.  I'm going to try and get 1000+ miles on, tuning every 250 and then go get a dyno run to see how we're doing.

[TexTaz]

oh,  forgot to note problem with the Rineharts.  The O2 sensor port they give you on the FL is useless.   When analyzing our data we noticed that we got precise readings on the rear cylinder and long lazy lines on the front cylinder.  Rinehart puts this sensor on the inside of the front cylinder pipe down by the floorboard.  This is way too far away from the cylinder head.  

we thought this might be the case when we installed, but we figured we'd give it a try.  What we've learned is that you want your O2 sensors as close to the heads as posssible and if you're using a dual set up it's nice if they are about equal distance away.

The following weekend we pulled the front pipe back off and moved the sensor up close to the head.  It cleaned up the data right away and started tuning cleaning up the map instantly.

I love the sound of the pipes and I this Daytona fuel controller is pretty cool !!!

[grc]

oh,  forgot to note problem with the Rineharts.  The O2 sensor port they give you on the FL is useless.   When analyzing our data we noticed that we got precise readings on the rear cylinder and long lazy lines on the front cylinder.  [highlight]Rinehart puts this sensor on the inside of the front cylinder pipe down by the floorboard.  This is way too far away from the cylinder head.[/highlight]  

we thought this might be the case when we installed, but we figured we'd give it a try.  What we've learned is that you want your O2 sensors as close to the heads as posssible and if you're using a dual set up it's nice if they are about equal distance away.

The following weekend we pulled the front pipe back off and moved the sensor up close to the head.  It cleaned up the data right away and started tuning cleaning up the map instantly.

I love the sound of the pipes and I this Daytona fuel controller is pretty cool !!!

[highlight][/highlight]
Taz,

Excellent observation and recommendation.  It is normally best to have the sensors within about 6 inches of the heads, if possible, especially with a low restriction exhaust.  The reason is that the further you get from the heads, the more you get false readings from the "reversion" effect in the exhaust system.  This same thing is true if you are using an A/F probe stuck up the exhaust pipes for a dyno tune.  A good tuner will measure the distance from the end of the pipes to the point he wants the sensor to be located (as close to the head as possible) and then make sure he inserts the probes to that dimension.  Unfortunately, we will probably see some peculiar bung locations on various vendors pipes due to other engineering considerations such as ease of manufacture and ease of installation, or clearance to other components, etc.  For instance, an O² sensor located just 6 inches from the front head is going to be pretty obvious visually, and that might turn off many customers.

Jerry

[TexTaz]

I'm curious now where the MOCO has placed the sensors on the '06 Dyna's.
Did they go for performance or looks ?

[andycerni]

oh,  forgot to note problem with the Rineharts.  The O2 sensor port they give you on the FL is useless.   When analyzing our data we noticed that we got precise readings on the rear cylinder and long lazy lines on the front cylinder.  Rinehart puts this sensor on the inside of the front cylinder pipe down by the floorboard.  This is way too far away from the cylinder head.  

we thought this might be the case when we installed, but we figured we'd give it a try.  What we've learned is that you want your O2 sensors as close to the heads as posssible and if you're using a dual set up it's nice if they are about equal distance away.

The following weekend we pulled the front pipe back off and moved the sensor up close to the head.  It cleaned up the data right away and started tuning cleaning up the map instantly.

I love the sound of the pipes and I this Daytona fuel controller is pretty cool !!!

I have the same bike/pipes. Can you send me th map you have now ?
Regards
Andy