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  #11  
Old 14th January 2007
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rharrison356 rharrison356 is offline
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Quote:
Originally Posted by doxbike View Post
I guess I didn't pose my question correctly. I already have had the re-map done after my stage 1. Can I still use the race fueler? Will I see/feel a drastic improvement or just a minor one over the currently installed re-map?

Thanks
First, I am basing my answer upon the experience of the Big Twin guys, as I don't know of anyone having done this with Sportster. Yes, you could potentially experience a performance gain using the SERF with the factory stage 1 remap depending upon your performance requirements, since the SERF allows changes (up to 50%) in the fuel delivery. However, the remap generally serves the same purpose and would likely provide better "all around" performance if using the SE a/c and slip-ons, for which the remap was designed. For mods falling outside of those parameters (such as V&H, Big Sucker and other non-HD stage 1 options) the SERF allows the owner to dial-in the ride.

The first question I would ask is, "Do you like the State 1 with HD remap?" Sporty_2007 has posted excellent results (subjectively and objectively) with his. I would be surprised if the SERF or SERT does much, if any, better. If the SERF/SERT is not dyno tuned, many of the BT quys were 5-10 HP down and 5-15% mpg off compared to bikes that had the HD remap. Speaking of dyno tuning, my XL50 is still at the dealer awaiting the new dyno going on-line (11 days and waiting...but at least it's snow and ice outside).
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  #12  
Old 3rd February 2007
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I just got a rev-tech DFO was $250 plug and play. Set up is very similar has the colored leds but only 4 pots, 1 for idle 2nd mid(main jet) 3rd full throttle (accelerator pump) 4th crossover rpm point for 3rd. The DFO can only add fuel, unlike the SERF. It works by changing the voltage pulse going to the fuel injectors. the more you turn the longer the FI's spray fuel,simple. Too bad I didnt see this post sooner or I might have considerd the SERF instead. So far the DFO works good and my cycle seems to run a lot smoother, I have not yet Dynod it. I found a local shop that said they will do a 3 run baseline for $40 ,while my local HD stealer wanted $70.
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  #13  
Old 3rd February 2007
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rharrison356 rharrison356 is offline
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Quote:
Originally Posted by doxbike View Post
I guess I didn't pose my question correctly. I already have had the re-map done after my stage 1. Can I still use the race fueler? Will I see/feel a drastic improvement or just a minor one over the currently installed re-map?

Thanks
Any changes will be minor. My original post was for Stage 1 (mufflers and A/C) without the remap. Seat of the pants was good. Then the dealer fiasco [lesson--ask and confirm] that resulted in the tuning before dynoing.

When returned for the retest, they could not get the SERF to work, so they [with my permission] did a remap and testing.

When I brought the bike home, I reconnected the SERF. I am still playing with my settings, and so far, the only improvement seems to be during the transition 3000-3500 rpm point, but I have lost the low end. I am going to wait until warmer weather (i.e., no snow on the ground) to really play with the SERF. The Big Twin guys regularly run the remap and SERF and speak of improvements. However, my dyno results show that the Air/Fuel with the remap (no SERF) are good.
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  #14  
Old 23rd April 2007
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Goshawk Goshawk is offline
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When you say run through the gears do you mean you are taking the bike out on the road for a test ride? Is all adjusting done in neutral with the bike on the sidestand?
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  #15  
Old 5th May 2007
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The adjusting is done with the bike on the stand. Fine tuning is done "subjectively" by running the bike through the gears. I am finding that the hotter temps have caused some changes, so more playing will be required.
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  #16  
Old 24th May 2007
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Quote:
Originally Posted by doxbike View Post
I guess I didn't pose my question correctly. I already have had the re-map done after my stage 1. Can I still use the race fueler? Will I see/feel a drastic improvement or just a minor one over the currently installed re-map?

Thanks
Well I suppose you can adjust A/F and smell it a little more at stop lights.
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  #17  
Old 27th May 2007
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Knocked-Out City Mr. rharrison356.Was that a 356 coupe?
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  #18  
Old 11th July 2007
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Installed H-D race fueler today. Seems to be working but my LED lights are backwards. Green for low, yellow for mid, and red for high rpms. Will fine tune tommorrow. Thank you rharrison356. This post explains what the instructions do not.
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  #19  
Old 27th August 2007
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Hi,

My 883 now has 3000 miles. I new I was gonna mess with her so, I had her dyno'd at my HD dealer.
It was dyno'd at 2000 miles just when I had bolted on the Cycle Shack tapered slip-ons.
I just ordered my new SERF unit and stuffed a K&N a/c into her. I will dyno her then too.
When I can afford it, I'll be finishing her off with the Hurricane hi-flow.

How do I post my dyno sheets?? I scan them first then what???
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  #20  
Old 28th August 2007
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rharrison356 rharrison356 is offline
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Quote:
Originally Posted by 883 View Post
Hi,

My 883 now has 3000 miles. I new I was gonna mess with her so, I had her dyno'd at my HD dealer.
It was dyno'd at 2000 miles just when I had bolted on the Cycle Shack tapered slip-ons.
I just ordered my new SERF unit and stuffed a K&N a/c into her. I will dyno her then too.
I look forward to hearing the results. Go to the dyno section of the forum and full instructions on posting are available. Some dealers will provide you with a "jpeg" file with the results.
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