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Author Topic: V&H Dresser Duals & H/O Slipons without tune?  (Read 1938 times)

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CVOBros2

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V&H Dresser Duals & H/O Slipons without tune?
« on: June 06, 2012, 01:30:40 PM »

I have about 6400 miles on my bike and I have had the V&H Hi-Output slipons on it for about 4,000 miles as my only mechanical mod.

Tomorrow I am having my dealer install Dresser Duals to help with sound, heat, and get rid of the cat.

The service manager says that since I have a CVO 110 it already has the ability to handle this without a tune.  He said it has a hi-flow air cleaner stock and a program that will handle and adjust to a new full exhaust.

Anyone know anything about this?  I haven't had problems with the slip-ons but I figured that isn't really a big mod like changing the head pipe and getting rid of the cat is.

Anyone running a setup like this with the stock program tune? 

My brother had an 08 CVO Springer Softail and he put V&H shortshots on at the same dealer and they didn't tune it either.  It had the heavy breather stock since it was a CVO 110.  He never had an issue with using the stock harley CVO tune.

Any help would be greatly appreciated.

Mike
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SciFiGuy

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Re: V&H Dresser Duals & H/O Slipons without tune?
« Reply #1 on: June 06, 2012, 02:16:32 PM »

Mike,

I have the same setup on my 12 SESG only difference is I went with the Dresser Duals first then added the High Output slip ons a week later.

Bike ran fine after the header switch out but once I installed the slip ons the major problem was starting from a cold start. The bike would rev up to around 2K rpms then would drop below 1K and die. I would have to keep twisting the throttle to keep the rpms up. This is due to the fact that you will be losing back pressure due to the openness of this set up as well as the fact that you will be running lean.

Your going to want to look at some sort of fuel management or tuner. I went around to a few different dealers here and of course they suggested the SEPRT (Screaming Eagle Pro Race Tuner) and a few hours on the dyno to tune it correctly. Cost from the quotes I got were all around $900.00.

I may end up doing this further down the road but for now I decided to install a Vance & Hines FuelPak. I'm sure you've heard about the other tuners on the site such as the TTS, Pro Vision and Power Commander. I went with V&H since I had one on my previous bike and never had any problems with that bike for close to 28K miles.

I do notice a drop in HP and torque on the low end but I can live with this for now. Bike starts right up now with no dying on a cold start. I'm really not one thats into squeezing every bit of HP I can out of the engine. At least not yet anyhow but have a feeling that will change with time.

Anyway that's my 2 pennies. I'm sure others with more knowledge of this will chime in soon.  :2vrolijk_21:
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2012 CVO FLHXIII Citrus/Gunstock

RODN

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Re: V&H Dresser Duals & H/O Slipons without tune?
« Reply #2 on: June 06, 2012, 06:56:24 PM »

I had a 2007 ELEC Classic Several dealers told me I didn't need a fuel management system and I installed Stage 1 Kit and Pipes, I didn't think it ran very well overall and had a SERT installed and dynoed. Was totally a dirrerent bike.
I now have a 2010 SESG and Installed duels and V&H Monster Rounds,Had the SERT and dyno tuned- Runs fantastic. My point I would have a Tuner and have it dyno tuned-I don't think you will be sorry.
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glens

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Re: V&H Dresser Duals & H/O Slipons without tune?
« Reply #3 on: June 07, 2012, 10:18:58 PM »

The service manager says that since I have a CVO 110 it already has the ability to handle this without a tune.  He said it has a hi-flow air cleaner stock and a program that will handle and adjust to a new full exhaust.

It might "run" okay that way, but the adaptive fueling scheme is by no means fine-grained enough to do a "proper" job.  It's best to properly recalibrate the ECM so that the adaptive fueling will have the best chance of doing what it's really supposed to do instead of relying on it to auto-tune to different equipment.  I really don't know what these dealer folks are trying to do except show their ignorance when they make statements like that above.
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