Just some background....
I have a 2010 Iron 883 that has a Stage 1 intake and V&H short shot exhaust. When I installed these two items, I never had the bike on the dyno, I simply bought the Fuelpak, added it to my bike, and used the settings specified for my exhaust.

I've been in talks with the dealer that I bought my bike at two years ago, and here are the prices they are giving me for the conversion (apparently there is a current 20% off parts discount special or free dyno tune):

1200cc conversion with dyno-tune (discounting parts) $2150.00
1200cc conversion with free dyno-tune $2080.00
1200cc conversion with no race tuner or dyno-tune $1550.00 (this will not give optimum performance, no tuning adjustability, and may cause minor runnability issues such as a "cough" or decel pop.)

If I have the last option done, is there any need for this "Race tuner" or dyno if I already have the fuelpak? I'm not familiar enough with the dyno process or this "race turner" to know.

 

I don't know the difference between the race tuner and fuel pak, I'd check with a good Indy on the dyno tune cost.

If you can't do your own wrenching, you might also check with that Indy on what they'd charge to install an NHRS 1250 kit.

 

You can get a Screamin Eagle Pro Super Tuner from a dealer on Ebay with cables and software for about $500. this will give you the stage one map to start with and then you can use the smart tune feature to dial in the tune. Many people have done this without a dyno tune and get excellent results. If you ever do any more changes down the road you will already have the Tuner and will not have to spend any more money on tuning.

If you want to do a conversion yourself and save some money check out my DIY conversion thread.

https://www.hdforums.com/forum/sport...i-version.html

this 1250 conversion with the SEPST tuner and all supplies was about $1800 canadian. that also included buying a new AC, service manual, shop supplies, 12% sales tax and about $150 shipping for all the parts to canada.

 

What about the Fuelpak itself though? The settings for the Fuelpak have a map for a 1200 with the exhaust that I have....won't that adjust the fuel settings to what I need? Why would I need the dyno or this race tuner?

 

I don't know much about the fuel pack, maybe it would be fine. Does it do anything for your timing? the 1200 timing is different than the 883 timing. You may still need the stock 1200 stage one download to use the fuelpak I'm not sure.

doing the conversion yourself can save you alot of money and give you some satisfaction.

 

I know the Fuelpak settings are the result of dyno-tuned tests, and it modifies the air/fuel ratio, but I'm not knowledgable enough to know what the dyno tuning does over what the Fuelpak does.

 

Even with a fuel pack or other piggy back tuners wouldn't you need a 1200 map loaded in the ECM? I have been wondering these questions myself

 

Good question. I know the Fuelpak has the settings for the 1200, but like you said, I don't know if you need anything beyond that or not.

 

Pretty sure you need the 1200 download. Up here in Canada the dealer wanted $300 for the one time download which is why I bought the whole tuner and accessories for $500. that gives me the download and the ability to fine tune the bike. I am no tuner which is why I went with the SEPST it has a smart tune feature that allows you to do data gathering runs. It then recommends changes.

 

"necessary?, Is it necessary for me to drink my own urine NO but its sterile and I like the taste !! "
Even with all the work done to the kits that are self tunable every bike that is out there runs differently and will react differently to the kit put on it , elevation, oil type , exhaust, how you break in the bike , how well of a job was done in the build. port polished or not, A dyno is a tool and like many tools you can find your way around it but sometimes it is THE tool for the job. I just did a baseline dyno on my carb 883 and will do another after im finished with my conversion in a few more weeks. I dont really need to dyno my bike but it is a good tool to show engine health and to really know what your hard work and money has done. in my situation there will probably be no benefit to the dyno other than for a little peace of mind about what I have accomplished