if you're not having idle or throttle response issues, I'd leave it. There's a good reason they have you do this up front before you start tuning. You'll need to start over with your tunes when you change the IVO. :-)

 

Run-in stage ATM on fresh 120". Another 500 or so Klms to go before Vtunes. - Rob.

 

I'd do a couple quick and dirt v-tunes. NO new engine should be subjected to a simple 'base map'. Get the VEs a little closer in the 2-3500 rpm ranges. I break in new engines with v-tune up and going... even for the heat cycles.

 

I continue to have a problem with my 06 Ultra with 95 inch motor. I flashed the BNS141-03 map which was appropriate for a starting point. On cold start up, the bike starts then immediately dies. I start it again and it runs fine. After warm up it will start just fine.

Any thoughts on where to tweak this base map for the cold start/dies issue?

The bike is stock with AC and slip ons. Stock cams, etc. I know I need to install O2 sensors to use Vtune but haven't got to it yet.

 

Take a look at these 2 tables. Adjust in small percentages

Warmup Enrichment
Cranking Fuel

 

Funny you should say that, did exactly that yesterday after I posted my last reply. I'm using DPC176 cal. so did two 15-20 VTunes. Not sure if I should have the tuned map into closed or open loop. Open loop ATM.

‘07 Deluxe, SE 120R crank & rods, + 0.010" SE flat-top pistons, 87cc ported SE 110 heads, S&S easy start 625 cams, SE 58mm throttle body, SE 6.2 g/s injectors, Zippers Max-Flow air filter, V & H 2 into 1 Pro-Pipe Chrome,

While I have your undivided attention, I,m having difficulty with starting engine ATM, turns over but won't start unless I give it a touch of throttle. Would I be correct in assuming the IAC needs adjustment? Haven't checked the manual as yet. - Rob

 

Thanks for the help. I ended up adjusting Warmup Enrichment, IAC Warm UP Steps and IAC Crank to Run. I did not adjust Cranking Fuel. The bike now cold starts and stays running. I haven't ridden it yet to see if anything feels different on the street but hopefully this fixed the problem.

 

Hey every one I'm looking for some help collecting data with v tune. I'm having trouble getting data from 15% throttle position and on. Is anyone here experienced with this procedure? I keep getting too high of a map reading. How do you getting good data in all ranges and higher rpms?

Mods: 106" 2012 dyna , s&s mr103 cams, hillside stage 4 heads, 55mm t/b, 5.3 g/s fuel injectors, zippers max flow air cleaner, rb racing 2to1 exhaust.

 

can you post a link to your TTS file please so we can look at it.

use box.com or dropbox or something like that to upload your MT8 file to and then share the link with us

 

1st data collection
https://www.dropbox.com/s/oncjtw2s0l...ct%231-r01.dm3

2nd data collection
https://www.dropbox.com/s/qilwp8ksi1...ct%232-r01.dm3

current calibration thats programmed into my ECM ater those data collections.
https://www.dropbox.com/s/1cknd4rjxh...20%236-006.MT8