does one have to have a tuner like Power Vision , or Thundermax or SE for a 2007 & up ?
thats like $500 + not including cables & maybe $300 for auto tune program.

are they mandatory with a new ignition ?

I see on the NRHS site they have Dyna & Twin Tech ignition listed with the 1250 & up kits. $285 + $100 for a USB cable

I have read many pages about the 883 to 1250 upgrade but haven't seen anything that explains the difference .

thanks




...

 

89 looks & no comments ?

i'm just trying to figure out what I will need minimum (electronically) with 1250 kit installed with or without cams & head work .

thanks






...

 

yes you will need a new fuel map for your 1250. the timing is different than your 883. Read the DIY 1250 conversion thread, it will tell you a lot of what you need to know.

People argue all the time on here what the best tuner solution is. I used the SEPST with great results but I also had to buy the cables and software to go with it. Total cost on Ebay was about $500. The software had the 1200 stage one map that I needed to start the bike and then I used the smart tune software to adjust my VE tables and then I manually richened my AFR table.. My bike runs absolutely great no hesitation or surging.

 

so what you are saying is a SE kit ( cables , software , 1200 map to start baseline for tuning ) is all I will need ?
& that will take care of ignition needs as well ?






...

 

Firstly let me say that there are a lot of opinions on the topic of which is the best tuner. I only have experience with the SEPST and it worked great for me. I had no experience at tuning and using the SEPST to start and tune my bike after the 1250 conversion was simple and worked very well, I have no complaints. The bike runs great.

To answer your question though, yes it will take care of your ignition needs. Even though the sepst by itself will not help you as it has no maps with it and you will have no way to connect the SEPST to your bike. If you buy the software CD (which has all of the HD canned maps), the cable to connect it to your ECM, and a pc near your bike either laptop or destop, you will be good to go. The SEPST controls every variable of your ECM so it is completely tuneable and can be used for a dyno tune as well. The canned HD stage one 1200 map is all you need to run your bike after the conversion. My bike ran great with just the canned map before I started modifying it and I suppose I could have left it that way without any modifications but the HD CD comes with smarttune software which allows you to gather data while you ride then come back to your pc, recommend changes to your vE table to dial them in (anyone that doesn't know what the VE tables are will learn when you read the manual to the SEPST, you will also learn how important the accuracy of the VE tables is to get your bike running well). I should add that it probably ran so well because I was using SE pipes and AC which is what the map is written for.

 

I don't have anything bad to say about the Thundermax. I set it 2000 miles ago with my new 1250 rebuild and have ridden like the wind all summer with no issues what so ever. Gas milage 42+, clean plugs, never has it pinged, no off the gas backfiring, very smooth, strong pull. I can't however tell you anything about horsepower or torque. haven't had it on the dyno yet. It's all there when i'm on the seat though!

 

I checked on HD web page , they have the Screamin Eagle tuner kit listed for $250 , it shows a pic of the tuner itself (orange box gizmo with a button & red led) , the second pic is a screen shot of the software in action on a laptop. When they say kit I assume that means a disk comes in that box ???

the cable kit is $45 , additionally . like there is some other way to move data back & forth ? Bluetooth , WiFi , Solar Flares , Exorcism ?

so for aprox $300 you get the kit & caboodle ?

I understand that the unit marries to the bike forever but if I were to sell a 1250 upgraded Sportster I would have to include a tuner anyway , otherwise it wouldn't run OR am i missing something here ?

From what I gather from the other tuner's protocol "PV" etc. is you buy additional license to flash another bike otherwise you could start your own business flashing all your buddies HD's ( albeit illegally )

sounds to me that the SE will do what I need through the "run it & massage the numbers" , trial & error . my biggest concern is keeping a safe fuel air ratio so i'm not running super lean to keep the tree huggers happy & burning my ___t up . I'm not planning a new career in racing , just want more from what I already have .

have I left something out here ? I know there are a lot of peeps who hate the SE and XYZ is the only tuner to have .

I just want to put on some 1250 jugs maybe get the 883 heads tweaked , some bolt in cams & a 2in1 and not have to drop 3 large into this project otherwise I should just go & get that SG for 12k.



thanks again.




....

 

Do your 1200. or 1250 upgrade and get a tuner, you don't have to worry about a ignition system upgrade or module, that is all controlled by the ECM on the fuel injected bikes..

I did the SE 1200 kit with the heads and bought a PowerVision.....OMG what a different bike, going to need a new rear tire soon

 

I suggest you decide between tuning your bike yourself as Mich did, or getting someone else to tune it for you. Mich is our expert doing the first of those, but if you decide on getting someone else to tune your bike (which is what I do), then find a tuning shop and take their advice on tuner. Why? Because you want them to give you the best service and it is pointless using something they are not familiar with.

 

Yep! I did a 1250 conversion on my 04 883. (carbureted), I had to buy a power pack to "retune" the engine stored codes. You will definately need some sort of performance PCU to "tetune", reset, your stored codes. Espesicially since you will allmost certainly have to add performance exhaust pipes. (V&H). All of fuel injected engines are run by the CPU. The control module. Take your time, buy the right tools.lots of real precision work, Spec's especially! Good Luck!
rrawson