XIED vs Tuner
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Cruiser
Joined: Nov 2008
Posts: 169
Likes: 10
From: Tonawanda NY
XIED vs Tuner
I run a 2015 FLHTKL with the HO 103 motor to which i initially added V&H Monster Ovals and am about to add a Performance Machine Air cleaner. Do I really need a tuner if I do not want to do any other mods, or will the XIEDS run cooler and richer throughout the rpm range ?
thanks johnv
thanks johnv
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Joined: Jan 2007
Posts: 15,788
Likes: 5,625
From: along the shore of Mishigami
The XIEDS or newer VIEDS ($$) are a piggyback fuel modifier that plugs into the
O2 sensors then into harness to modify the pulse width of the injector (inj. spray duration). They bump up the mixture slightly. A tuner will do a lot more for the internal operation of the engine and is adjustable ($$$$). There is another thread addressing basically the same thing but, the discussion also the fact that due the O2 sensing and the ECM, the ECM will self adjust to the EPA standard ratio, which is on the lean (hot) side. Hope I didn't muddy the water too bad. I'm running a V&H FP3 tuner with their map, bike runs great.
O2 sensors then into harness to modify the pulse width of the injector (inj. spray duration). They bump up the mixture slightly. A tuner will do a lot more for the internal operation of the engine and is adjustable ($$$$). There is another thread addressing basically the same thing but, the discussion also the fact that due the O2 sensing and the ECM, the ECM will self adjust to the EPA standard ratio, which is on the lean (hot) side. Hope I didn't muddy the water too bad. I'm running a V&H FP3 tuner with their map, bike runs great.
Grand HDF Member
Joined: Jun 2008
Posts: 3,983
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From: Ohio
I run XiEDs and think they're great. Bike runs cooler, and just as well as my other bikes did with the high dollar tuners I've used in the past. For a simple Stage 1 they're perfect.
Last edited by hd4evr2008; Feb 15, 2018 at 07:58 PM.
Ultimate HDF Member
Joined: Jun 2007
Posts: 9,193
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From: Richmond, VA
I ran VIED's on my 2013 Road King with intake and mufflers.
They worked great, till one day... they didn't. I'm now running a Fuel Moto tuner. It works better, makes more power, and was like a measly $60 more than the VIED's. Money well spent. VIED's work, tuners work better. Just sayin'.
They worked great, till one day... they didn't. I'm now running a Fuel Moto tuner. It works better, makes more power, and was like a measly $60 more than the VIED's. Money well spent. VIED's work, tuners work better. Just sayin'.
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Joined: May 2008
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If it were my money, I would go with the Power Vision tuner from Fuel Moto. Can't beat their customer service and support. If it were available back when I bought my tuner, I would have went with it instead of the SEPST.
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