106 Build Done - TTS Starting Map

[hotroadking]

So what starting map?

Finally got the cams in, SNS 585's and the SNS 106 cyl and piston kit.

Pulled it down and did the work this weekend while the
rest of the family was out, I think I might have actually
smoked too many cigars LOL

Anyway, a few more things to button up
before taking it out for a ride.

Just wondering, what would be a good starting map, should I go with a 103 based map or a 110, both are about the same CUI apart from the 106 CUI, seems like the 110 map would eliminate possibly having VE's go over the limit on some cells, and might be richer during break in especially with our super hot summer heat here in FL.

Couple of thoughts were

110 Map UE205-002 - 110 Pistons, 260 Cams and Heads
or
103 UH205-02 - Pistons, 255 cams

[wurk_truk]

I have 09 SG, which also has DBW.  I had a S&S 106 kit and now its a 'one-off' S&S 107.  Also, I have Andrews 54 cams with D&D exhaust.

I have run two maps.  UJ205 and TZ205.  BOTH of these have the constants set at:  Engine displacement 117.6

The TZ map was a dyno tune on the bike.  The UJ was picked by a very prominent tuner on these boards.  Both maps run the 117.6 CI because the VEs get really close to 127... 123ish in places.

One picks the closest CAM profile when choosing a map.  That UH will do you NO GOOD with 255 cam specs for sure.  Its been stated numerous times to pick your map by the cams.  Inside each map are basic settings that WE, the end users, have no control over, like: when the injectors start, etc.  So, with Herko and Doc picking these maps for me...  I am comfortable in using these.

To do this properly... get all the specs for that 585, and write down the specs, then go to BigBoyz and write down the specs for all the SE camsets used for base maps.  The closer on valve timing the better.  ie; intake open, intake close, then exhaust open/close.  THIS lines up when the injector fires within any given map. One doesn't want the injector to pulse AFTER the valve is open.

I've been told by more than one Tuner... the TZ is a good all around map for most built bikes.  The couple of members that I suggested using UJ to.... came back with good results.  Picking camsets IS key with this for proper results.

Good luck.

[hotroadking]

SNS does it for you, they have a "comparison chart" for the 585

It compares to HD SE-211/251/257, or, Andrews 31H/32H/50H/55H/67H quite a spread...

Cam  Valve Timing Open/Close Valve Duration  Valve Lift Centerline Lift @ TDC
585  20°/45°  60°/20°  245°  260°  .585”  102.5°  110.0°  .186”  .179”

[hotroadking]

Closest two cams I find are HD SE 259e and Woods 7B

[Don D]

Clarification
Intake beginning of opening timing most critical
Consider the NL map

[glens]

Well that's in terms of fueling.  I wonder if the different maps poll the MAP sensor any differently...

[Don D]

We'd have to ask the creator to give us direction. Are you sure it doesn't poll an average at many times?

[glens]

I've no clue.  It must surely get checked at least at least onced per revolution, at the appropriate advantageous time each.  Beyond that I don't reckon what the scheme might be.  Steve?

[wolf_59]

NI or NO maps are for the 257 cams

[hrdtail78]

I would go with something for the 257 also.  24/48 is pretty close to the 20/45 of the 585.  I wouldn't worry so much about the cu. in.  That is easily changed.  Can always V-tune in the high map areas only.  Get it sorted out and v-tune the rest.  I always up my Cu. in. in percentage it is easier to reduce the whole VE table the %.  It is also easier to deal with your warmup fuel also.

For the guys with DBW.  There is a nice nipple on the head side of the throttle blade.  Hook up a vacum gauge with dampner on it and take some readings.  On the older TB's.  The bottom is long, flat and easy to drill and tap.

[Steve Cole]

Intake MAP is read many times per cycle. Intake opening and closing times are important and yes these are changed in the various base calibration we provide. This is part of why we tell you to select by camshaft first in the tuning guide.

[lonewolf]

  It is also easier to deal with your warmup fuel also.

So do you reduce it by the same %? I have only reduced it from 96 up.

[hrdtail78]

I do the whole thing.

[wurk_truk]

NI?  NO?  This is a DBW bike.

[hotroadking]

Tried the TZ, bike ran poorly at low speeds, rough idle, of course no tuning done yet, changed to the UH205 and it seems to like it better, lots of popping on throttle off, but accelerates well

I may try a few other maps to see if any works better, then start the modification via Vtune.. There are no 09 maps with the 257, closest has either a 255, 258 or 260 cam...

Have to get a few miles on it first anyway...

Yes it's a DBW bike 2009 RG...