Autotune or custom MAP for Nytro XTX

[gc_srt]

I have quite a few parts in the basement for my 09 Nytro XTX but I am thinking about adding one more. I have a 1.75 back country track, gen 3 simmon skis, tunnel block off plate, slide saver wheel kit, 3" riser, MBRP trail slip on with header, k&n intake, ulmer clutch, cr10ek plugs, and power commander V ready to be installed. I am toying with the idea on putting on an autotune or just getting a 'out of the box' MAP tune from one of our wonderful vendors.

Any thoughts on this matter? I have tried tried searching for answers but I am still undecided.

Thanks,
Dustin

 

[natedawgedog]

I have quite a few parts in the basement for my 09 Nytro XTX but I am thinking about adding one more. I have a 1.75 back country track, gen 3 simmon skis, tunnel block off plate, slide saver wheel kit, 3" riser, MBRP trail slip on with header, k&n intake, ulmer clutch, cr10ek plugs, and power commander V ready to be installed. I am toying with the idea on putting on an autotune or just getting a 'out of the box' MAP tune from one of our wonderful vendors.

Any thoughts on this matter? I have tried tried searching for answers but I am still undecided.

Thanks,
Dustin

if you do any type of of trail riding get the backcountry track it is worth it! imo also auto-tune is worth it since you have mods from different manufactures having the autotune dial you into the a/f ratio sweetspots is great! since you have mods similar to mine and you bought clutching from ulmer give him a call he has the tune's for the pc5 and could get you setup with autotune and the appropriate mapping!

 

[gc_srt]

Okay great. Do you have a suggestion on where to install the O2 sensor? I heard a couple inches before the muffler. Also, is the autotune a install and forget or is it more a tool to help you dial in the sled?

Thanks for the help,

 

[natedawgedog]

Okay great. Do you have a suggestion on where to install the O2 sensor? I heard a couple inches before the muffler. Also, is the autotune a install and forget or is it more a tool to help you dial in the sled?

Thanks for the help,

I have an undertunnel exhaust and my midpipe is were I have the O2 sensor about 2-3" after the 3-1 collector just right before the muffler. Autotune does both, if you get a map from ulmer it should be really close to the optimum a/f ratio and the autotune will pick up the rest, so from there it should be set and forget. if the settings on the pc5 map are a bit off you can use the autotune to adjust the basemap for the pc5 to get it right.

 

[gc_srt]

I got a MAP from Ulmer Racing (thanks Allen!) and I signed up for DynoTech Research to get a MAP after taking to the guys there. I was sold with DynoTech being they said they had an exact MAP for my setup, unfortunately I couldn't find it on their website. I emailed sales and hopefully they have what I am looking for. I have the Ulmer Racing tune on the PC5 and will compare it to the DynoTech MAP if one is available. I will install the o2 bung on my MBRP header for either the AutoTune or for an a/f gauge.

 

[natedawgedog]

dynotech never told me anything like that but I did have a subscription to them last year just to look at the cool mod sleds they were dyno'ing but ulmer has a map that worked for me and was very close to 0 autotune adjustments needed, Ive actually debated taking mine off now to save the little bit of weight that it adds. lol

 

[race24x]

How complicated is this system to use? Do you load a map and the O2 sensor does the rest? I dont want to run it on the dyno, and I would like to avoid adding a gauge and tuning with that...