'09 883N: New Supertrapp 2:1 map???? : V-Twin Forum: Harley Davidson Forums

Demon2Alpha · 10-12-2009, 07:36 PM

Hi guys,

Right now I have a '09 883N w/ V&H Short Shots, Arlen Ness Big Sucker, and a PCV running the Short Shots map. Ordered the Supertrapp Supermegs 2:1 last week and will be swapping it out soon. Looked in the PC website for a map but couldn't find one. So where can I get a map for the new exhaust system?

Thanks in advance.

DynojetResearch · 10-14-2009, 02:53 PM

I would say to start with the M15-002-021 and let me know how that works for you. We can make some adjustments to it if need be based on your feedback.

Demon2Alpha · 10-14-2009, 04:20 PM

That map is for the 1200, I have an 883. Would it still work then?
I might try running the M15-001-007 map.

DynojetResearch · 10-14-2009, 06:22 PM

Sorry, I was looking at the wrong model. My mistake.

Yes, try that map and let me know how it goes.

Demon2Alpha · 10-16-2009, 02:40 PM

Tried the map out, seems to be working fine. But while in 1st from a stop, the bike feels like it's hesitating until I get to about 20MPH then I can feel the bike move. Other than that, there's no popping at all.

DynojetResearch · 10-16-2009, 05:18 PM

Give this a try and let me know if it helps from a dead stop.

Demon2Alpha · 10-16-2009, 07:13 PM

Thanks Mr. Dynojet... It feels a little more responsive now from a dead stop.

Demon2Alpha · 10-16-2009, 07:53 PM

Going from a short open exhaust system to a 2:1, I've found that the bike runs a little hotter. Plugging my laptop into the PCV shows that the engine temp. is around the 240's. Is this something I can resolve with the fuel mixture or is it just a characteristic of a 2:1 system being more restrictive on the exhaust than a shorter exhaust system?

DynojetResearch · 10-19-2009, 12:38 PM

The 240 you see is cylinder head temp, not oil temp. 240 is not that hot.

What made you change the exhaust? Which map are you running now?

Demon2Alpha · 10-19-2009, 03:10 PM

Everything just feels hotter on the bike than before. I'm still running the map that you sent me on Friday.
I changed from the Short Shots to the Supertrapps for mainly two reasons. 1) I wanted a little more low end torque back that I lost with having short pipes and 2) the Supertrapps sounds a lot better than the other pipes. It's a deep low rumble compared to the loud raspy short pipes.

DynojetResearch · 10-19-2009, 03:48 PM

Aside from your perceived change in "heat" how is the running?

Demon2Alpha · 10-21-2009, 04:02 PM

From a dead stop it feels a little better than before. There's a little vibration when accelerating in 4th gear; I can live with it. Other than that, the bike seems fine. I appreciate your help.

DynojetResearch · 10-26-2009, 02:45 PM

If you can figure out what RPM and roughly what TP% we may be able to make some changes for the vibration. It just depends on how much time you want to spend trying to sort it out.