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Efi Tuner Question

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Old Feb 9, 2009 | 02:08 AM
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Question Efi Tuner Question

OK guys heres another stupid tuner question, Im ready to buy one... The toss up is the V7h Fuelpak or the Dynojet Power Commander... My bike is an 04 Dyna Lowrider 88ci Fi with screaming eagle air breather and a Thunder Header 2 in to 1 exhaust.. Please give me your thoughts on both tuners my bike is running way too rich also..
Thanks Again
Paul
 
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Old Feb 9, 2009 | 03:51 AM
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A simple comparison.......the fuel pak is easy to install, while the Power Commander offers versitility to can maps for future performance mods and fine tuning on a dyno. Which is best depends on your plans for future work to the bike and how deep your pockets are.

You didn't mention in your post, what is causing your Low Rider to run rich?
 
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Old Feb 9, 2009 | 06:40 AM
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Yeh, with a stock ECU setup and the a/c and exhaust, it should be running too lean. But that wasn't your question.

The fuelpak is relatively easy to install but it's a set it and forget it device where you lookup the codeset based on your bike model/year and your exhaust (stage 1 a/c is assumed by V&H), program the FP and that's about it. The Power Commander can be set with a default map for your setup but it can also be fine-tuned while running the bike on a dyno.

Sounds like I'm promoting the PCIII? I'm not, I'm not dissing it either but I went with the fuelpak and my bike runs great.
 
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Old Feb 9, 2009 | 01:51 PM
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I'm on the same fence with my bike. Right now I'm just running a stock dirty air cleaner and the V&H big shots with quiet baffles that I took the packing off of. A local shop told me they would sell me the pc4 for $300 and that would include installing it on the bike and tuning it (no dyno time, just trial and error maps from the dynojet website). I think for the extra few bucks the power commander will be a better choice in the long run, but then again I plan to do a 95" build down the road.
 
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Old Feb 9, 2009 | 01:54 PM
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That's the decision maker right there bigV. If you plan on doing engine mods or want the bike dyno tuned now or in the future, fuelpak is not the way to go.
 
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Old Feb 9, 2009 | 02:56 PM
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The fuelpak doesn't work so swell on every model. But it's hit or miss... For those guys, they wish they would have spent the $$$ on the PCIII or the SERT. I haven't heard anyone complain about buying the PCIII and getting rid of it for something else.

Much like 2007fxdc - it would sound like I'm trying to talk you out of the fuelpak. But, I have one that I bought used from a guy it didn't work for. It works great for me and the mods I have done. I got lucky on that crap-shoot...
 
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Old Feb 9, 2009 | 03:24 PM
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btw, you probably wanna pull your plugs to verify your rich burn condition. I'm willing to bet you'll find you're actually running too lean. Pipes and stock air cleaner on a FI bike is borderline from my experience and adding a high flow air cleaner just makes matters worse. The only reason I say this is I'm wondering how long have you been running the bike with this setup? Too lean for too long = BAD.
 
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Old Feb 9, 2009 | 03:38 PM
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Originally Posted by bigVtwin88
btw, you probably wanna pull your plugs to verify your rich burn condition. I'm willing to bet you'll find you're actually running too lean. Pipes and stock air cleaner on a FI bike is borderline from my experience and adding a high flow air cleaner just makes matters worse. The only reason I say this is I'm wondering how long have you been running the bike with this setup? Too lean for too long = BAD.
Just an FYI, but simply reading plugs on modern Fuel injected engines won't tell you much. The majority of run time on a typical bike is done in closed loop where the computer keeps the engine within close limits of 14.7:1 a/f ratio. If you go much out of that limit during closed loop you'll get a check engine light anyway. You may sometimes pick up some signs of detonation on the plugs, but that's about it

About the only way to read plugs on Fuel injected engines is to put in a new set of plugs, and make a few wide open throttle runs, then check the plugs.
 
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Old Feb 9, 2009 | 03:41 PM
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I ran a Fuelpack for a while with my set-up. V&H Sideshots and SE stage 1 a/c. It ran ok, not bad and not great. The bike surged occasionally and had some decel popping. I switched to a PCIII and had the bike dyno tuned. It runs a lot smoother, the surging and popping is gone and I grabbed a couple lbs. of torque by having it tuned properly. That's my experience, I wouldn't buy a Fuelpack again.
 
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Old Feb 9, 2009 | 03:51 PM
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i reccomend jamie at fuel moto!!!!!!!! hes done 2 bikes for me and i am happy with his service!!!!!
 
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