Hey guys i ordered the V&amp\\;H BR pipes and the screamin eagle heavy breather.&nbsp\\; Do i have to have the race tuner&nbsp\\;when i put these on?&nbsp\\; Will it be to lean without it? or will it be ok?
Thanks
&nbsp\\;
zakk
&nbsp\\;

 

you will be more lean then before......think about it.

 

Greetings,
&nbsp\\;
The race tuner allows for a lot more flexibility. Yes you can just get the Stage 1 download done, but for the extra money the race tuner is well worth it. If you don't do anything the bike will run even more lean and hotter. Not something I would do.

 

Dealer is just watching out for your best interests, you don't want to mess up that new motor.&nbsp\\;Its no fun spending the extra money but if you are doing the pipes and AC that is the only way to go.&nbsp\\;I did the same thing and they did a partial dyno tune and will finish the tuning at 1000 mile service once the motor is broken in.

 

Does any have the .dt0 file for Rocker C with Vance and Hines Big Shot Dual and Screaming Eagle Heavy Breather for Race tuner? Need Help!!

 

Does anyone have the dt0 file for a rocker C with vance and hines big radius 2 into 2 and Screaming Eagle heavy breather? Need Help with my Screaming eagle race tuner!!! I screwed up my SERT....

 

how did U screw up a sert.?..Just want to know to keep others from doing it..

 

I didnt screw it up I just wanted to compare with my Sert. I have recorded my bike 16 times with different runs and used advanced mode and smart tune with 176AE106 runs good not much on Deceleration Enleanment pops VE Front 74.577.078.078.578.578.579.079.580.583.586.086.587 .074.577.078.078.578.578.579.081.082.085.587.087.5 87.576.577.078.079.579.081.083.084.085.087.088.088 .588.577.080.081.081.081.081.584.086.086.588.089.5 89.589.579.078.079.582.081.582.583.586.087.089.089 .590.090.581.580.080.581.584.583.585.085.586.589.0 90.090.091.083.582.582.080.081.585.585.084.586.088 .590.591.091.585.084.586.584.584.583.088.086.587.0 89.091.592.092.588.088.092.091.589.585.589.088.086 .088.591.592.093.090.089.595.594.592.590.089.089.0 89.088.092.093.094.090.090.098.097.095.590.589.590 .589.089.592.594.095.091.090.099.596.595.091.089.5 89.588.589.093.094.095.091.590.595.5103.099.096.09 1.095.589.591.095.094.096.091.593.095.5102.099.099 .097.596.092.092.093.095.098.591.592.592.595.5105. 0103.5101.096.596.092.091.593.599.090.091.089.592. 099.0103.0101.599.097.092.588.590.095.090.089.087. 590.097.0102.099.5100.098.092.588.088.092.090.085. 588.590.096.5101.0101.599.097.092.587.087.088.090. 085.088.590.095.5100.5101.099.097.092.086.086.587. 5
VE Rear
84.084.584.584.083.584.084.084.084.585.586.087.087 .084.085.085.585.084.584.084.585.085.587.087.088.0 88.085.587.086.086.086.085.086.086.586.588.088.589 .089.087.589.587.587.087.085.586.587.588.089.089.5 90.090.090.090.088.588.087.586.586.587.588.590.091 .091.091.090.091.090.089.090.087.087.087.588.090.0 91.091.091.091.596.094.092.590.090.587.587.587.588 .591.092.091.090.593.092.592.592.088.089.588.087.5 89.591.092.592.590.091.093.593.093.091.091.089.085 .590.092.092.092.091.591.594.595.096.095.091.591.0 89.590.092.592.592.091.092.098.098.0100.099.595.09 4.090.093.593.593.592.593.092.5101.599.0101.5101.5 100.596.593.091.594.094.094.093.091.597.0101.5101. 0102.0101.0100.094.594.595.594.095.592.589.092.098 .5100.5104.5104.5102.097.095.096.096.098.592.087.0 88.094.599.5103.5107.5101.0102.599.096.095.0101.09 2.086.587.594.098.0103.0106.5105.0103.097.595.594. 598.591.585.586.592.597.5101.0106.5105.0101.597.09 3.592.093.091.583.585.591.596.0100.0104.0102.099.5 96.091.589.590.092.083.585.590.095.099.0103.0102.0 99.596.091.089.088.5
I think I am getting this tuner Down but would like to compare with dyno runs... any help would be great...

 

That scares me. I would go with a PC V w/autotune via Fuelmoto...who is also a sponsor of this great forum.

 

Heres a post almost 4 yrs old but still a good one...


12-03-2005, 06:57 PM
Terry1955 "Administrator & Troll Slayer"My Garage Join Date: Feb 2005Location: Charleston, ILPosts: 16,788

Why EFI Vehicles Need To Be Tuned For all the people that don't quite understand why you need a Race Tuner (SERT) or Power Commander (PCIII USB) for your Harley please read this.
This was not written by Harley (who makes the SERT-Race Tuner). I favor the Race Tuner but will concede that the PCIII is also a good piece of equipment. But PLEEEEEEEEEEEEEASE...Don't use the HD download Why EFI Vehicles Need To Be TunedThe need for "re-mapping" a fuel injected bike only arises when internal and/orexternal engine components are replaced with non stock components, i.e. air cleaners and exhaust systems. When components are changed on an engine toany non stock or "performance" part you alter the way that engine moves air inand out, thus altering the Volumetric Efficiency. If the V.E. is altered the stock ECM fuel settings continue to deliver fuel at a base-line rate unaware that the air delivery has changed. With the fuel delivery unchanged and the fact that this engine is receiving more air there is a lean condition created that will most likely cause engine damage due to higher heat levels in the combustion chamber. A VTwin engine is just that, two separate cylinders in a "V" configuration which generally speaking will cause these cylinders to flow air at a different efficiency rate.
This effect is mostly caused by a non tuned exhaust system that flows air at different rates from front to rear thus changing the volumetric efficiency.With the advancements and complexity of today's fuel injection systems simplicity is not necessarily advantageous. The need to compensate for fuel delivery to a modified engine ideally would be performed by the original engineer or programmer of the ECM since they would be the one most knowledgeable on this system. Since this avenue is not available to the average consumer, a method of putting a "Band-Aid" type programmer (HD Download) to compensate for the modifications is the easiest solution, however it is not necessarily the best.Installing a "Band-Aid" on a system with this complexity can sometimes create awhole new realm of problems that the original engineers could not have anticipated.
The Dyno Jet Power Commander unit with it's 126 fuel adjustment cells and 126spark timing cells offer simplicity that cannot always compensate for the high demands of a modified V-Twin engine. Especially when the cylinders have a different V.E. rate, this also offers a "Band-Aid" solution at best.The H-D EFI Race Tuner Kit offers 220 Volumetric Efficiency adjustment cells foreach cylinder along with an Air Fuel Ratio (AFR) adjustment table that has 120 cells for a total of 560 fuel adjustment cells. There are also 220cells for each cylinder to compensate for spark timing, fuel enrichment cells forcold start and cranking enrichment for easier starting. With these extra tables andcell adjustments there are over 1000 adjustments that can be made. Alsoconsider the advantages with having the ability to set your idle mixture as well asidle speed and having access to your own rev limiter which is adjustable from4000 to 7500 RPM.______________________________________________ ____ _________________The Dyno Jet Power Commander does not alter the stock rev limiter.
That is whymany people use the Stage 1 Download along with it. The Stage 1 Downloadraises the rev limiter to 6200 RPM.__________________