Over the next few months I'm going to be converting my iron 883 to a Hammer Performance 1250cc kit. Now I already have a stage one kit on the bike. Exhaust, air cleaner, and the Vances and Hines FuelPak FP3.

I'm going with just a basic conversion. New cylinders, new pistons, and STOCK 883 heads. I just don't have the money to port my heads and i'm happy with just the basic conversion.

Vance and Hines just released fuel mappings for the Screamin Eagle 1200cc kit. This consists of 1200cc cylinders, and heads made for the 1200. Im thinking I can Put the 1200 mapping on the the 1250cc kit and then auto tune it for the 50cc variance with the kits. Would this be too drastic of a change for an auto tune? What do you guys think.

 

I don't know. The FP3 is a new tuner. Not a lot out there on it. What I read on fuel moto's website doesn't sound promising.

 

yeah I was an idiot I should have gone with a better tuner. I was also told at first the tuner doesn't get married either when tuning. Oh well I got screwed on that. I'll have to send Vance and Hines an email and see what they think.

 

I will never buy another Vance & Hines product ever.

 

The fuel Pak never got the best reviews either. I have to say I like the idea of the FP3 using a phone app. It just needs to come out on a dynojet product. I don't know if V&H can pull it off.

 

It looked like a very promising product for me. I got it and the mappings that they created for their exhausts are damn good. But it pretty much ends there. But I do like the fact that it can be updated such as recently with the 1200cc kits, and supposedly in the future it will support cams too.

 

i think i can answer your question... i bought a 2014 iron 883, then i got vance and hines short shots, intake and FP3. hooked it all up everything worked awesome. i even did the auto tune and made it work a bit better. later in the summer (SEPT or so) i bought a 1250 big bore kit. just the basic bolt on and go. no head work or nothing. V&H didnt have a map for the 1200 kit yet so i was purely relying on the auto tune. i rode it around for half hour and it ran like **** trying to auto tune it. but when i downloaded the auto tune map it ran amazing. just let autotune do its job and you will be fine.

 

Hey man I really appreciate your help. I guess the FP3 is more capable than anyone thought. I think i'll flash it using the 1200 mapping they just released and auto tune it from there. Like what all was the bike doing while it was running badly?

 

Can anyone give me a quick run through on how to correctly use the autotune feature ?

 

Im new user of FP3 and hope to not screw it on my opinion, but its as simple as "activate --> run --> apply changes".

You need to activate autotune, and go out and ride a lot, when you finish your ride, just apply the autotune proposed map changes and thats it, you can apply and close, or can apply and still maintain autotune open so you keep improving on a next ride cycle over the same autotune map.

cya !!