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Discussion Starter #1
Im going to buy a aftermarket fuel mangament piggy back system, just wanted to know which one is the best. Also, I have read that you can remove the secondary throttle plates for better throttle response and less backfiring, but they said it changes the engines behavior, HOW? How does the engine act without it?
 

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That depends on what you're going to "use it" for.
I've used 2 on my other bike - and they're both the 3-pot systems like the Cobra (Fi200R) and the V&H fuel pack units you see for the VN900 on eBay. They're easier to set up for "seat of the pants" tuning, but they lack the fine tuning that the PC3 has...which requires you to find (or make) a map for your bike's mods and bolt your bike to a computer - via a USB port. Sorry MAC weenies - but I believe that the PC3 is a PC-ONLY device! There are prob a ton of maps on this site if you want to go that route. The PC3 is the better part of $100 more then the Cobra unit - but if you want to squeeze the last bit of RWHP out of your scoot - that seems to be the way to go.

Personally - I use my my unit just to rich the F/A mix up a little to eliminate backfiring (my V-Rod was even leaner from the factory than my Vulcan is) and make the bike smoother throughout the throttle range after gutting the pipes and putting on a higher flow air filter-so a unit like the Cobra is best----FOR ME, and I'll probably use one on my Vulcan - eventually.

Even with the PC3 - don't expect to pick up more than a few extra HP - just about enough to feel in the seat of your pants.

Use the search function, and you'll get loads of info!!

Let us know what ya pick and how it works out! I'm still a noob with Vulcans - and I'm soping up as much info as I can from this site!:D

Ride safe!
 

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I use the Fi2000r. The minimal gains don't justify the additional cost of the PC. The secondary throttle plate does not effect backfiring. Throttle response is much better with the plates removed. The downside is on bumpy roads and trying to maintain throttle, but v-twins jerk around on bumpy roads anyway as your hand has trouble maintaining throttle. Mine's been disconnected for 2 years now.
 

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Discussion Starter #4
I use the Fi2000r. The minimal gains don't justify the additional cost of the PC. The secondary throttle plate does not effect backfiring. Throttle response is much better with the plates removed. The downside is on bumpy roads and trying to maintain throttle, but v-twins jerk around on bumpy roads anyway as your hand has trouble maintaining throttle. Mine's been disconnected for 2 years now.
Disconnected or completly removed?
 
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