Rubbermount_EFI 883 to 1200 conversion ecu

[mrjoatmon]

I'm a noob here so please have mercy. I'm getting ready to do the conversion and can use any advice from anyone who has "been there, done that". Already checked with a couple of aftermarket products(efi tuners) that tell me their unit will not handle it alone and I will still need the ecu reflash due to the major increase in displacement. I've already done the pipes and intake (ness big sucker and roadhouse 2 into 1) and will be swapping the trans pulley to a 32 to get the 1200 gearing after the upgrade. HELP!

[sportysrock]

Welcome to the Forum. This isn't really my thing, but there is lot of conversion threads under here:

http://xlforum.net/vbportal/forums/f...play.php?f=224

Pick one of the newer bike threads and see what was needed.

[AustinXL]

What tuner manufacturers have said their products won't work?

The TTS Mastertune and the PowerVision will both work. Both of these make a dealer reflash useless as these tuners (among others) actually reflash your ECM.

Sent from my BlackBerry 9800 using Tapatalk

[AustinXL]

Welcome to the forum by the way, sorry I didn't notice that was your first post!

Any questions on your build you should be able to find the answers here.

[mrjoatmon]

Thanks for the info. I had contacted Terry components and ness about their products and was told neither had the tuning flexibility to do the job on their own. I talked to one of the service guys at East Orlando HD and found out the factory reflash would cost about 160 plus the labor to do the install. What kind of money are we talking for the products you mentioned are how can I contact them? Again thank you for your input.

[AustinXL]

The products I am talking about are around 400 dollars. You will find A LOT of info on this forum about tuning with these products, especially the PowerVision.

The factory reflash is not that good, with one of these tuners you'll be able to reflash your own ECM as many times as you want. It sounds like something you wouldnt do, but believe it or not I have reflashed my own ECM at least 8 times just in July. Now I am working on perfecting a tune but still, I haven't had to give one dollar to a dealer.

Are you doing the 1200 conversion yourself or having your dealership do it? Screamin Eagle parts I am assuming?

[1250IRON]

I have been very happy with the thundermax. Don't hear much about them but there are a lot of them out there. In my opinion that usually means they do their thing well. I've got 2000 miles on mine without any issues. runs very strong and cool with good gas milage. You won't get one for $400 though.

[NRHS Sales]

The thundermax IMO is the best tuner you can use as it will auto tune for any combination which is realy nice if you plan to do different mods at different times. That way you do not have to constantly keep getting it re dynoed which can be very costly.

NRHS is a certified Thundermax dealer and I can have it pre-mapped for you for a much easier installation compared to just getting an "out of the box" thundermax like most shops will sell you. My price is also $40 under MSRP.

The Terry and other low prices tuners just do not have the abilities to do a proper job of tuning IMO.

[1250IRON]

^^^^^thats where mine came from^^^^^^^

[AustinXL]

The Thundermax is a good unit if you just want to set it and forget it. I think its a little overpriced but thats my opinion.

I'll probably have people jump all over me here for saying this but it seems to me like the Thundermax isnt as advanced as the stock ECU. It may perform and make adjustments more efficiently and as stated you can "set it and forget it" but as a whole it is less advanced.

The Thundermax makes adjustments only based on throttle position and RPM - it negates the MAP sensor that the factory put there for a reason.

Just my 2 cents, feel free to disagree.