screamin' eagle heavy breather: mapping?
Harley EFI & Harley CarbDiscuss screamin' eagle heavy breather: mapping? in the Harley Tech & Harley How-to forums; Hello fellow riders, I'm new here; hope I'm posting in the correct section of this forum - please forgive me if I'm not... Question: Is mapping required when adding a ...
Hello fellow riders, I'm new here; hope I'm posting in the correct section of this forum - please forgive me if I'm not... Question: Is mapping required when adding a screamin eagle heavy breather air-intake to a 2008 Road King? I have this vague recollection that i read in AIM that mapping might not be required when changing air-intake or exhaust systems on 2008 touring models(?). Thanks & ride safe, RKP
It might not be needed but it's well known that the motors come very lean from the factory so if you have any doubt about the A/F mixture either get it checked by your fav shop or do a preliminary plug test yourself..
Do you know how.?
Have you added the A-C yet.?
Does it exhibit any symptoms of possible lean mix..?
__________________ "Fill your hands you son of a bitch"
Rooster Cogburn
Many thanks F-R for your kind response... no, SE heavy breather not installed yet. I understand what you mean by lean mixture coming from the factory. Maybe best thing to do is have the SE HB installed at local H-D shop and see how it's running before 'investing' in the the mapping. Gratefully, RKP
Mr King, Frisco is correct in saying they are exceptionally lean from the factory. I have an 07 Electra Glide and last summer installed some good pipes, the SA air breather and the factory download. Still very lean, but provided phenomenal fuel economy. Well, so does Volkswagen. I'm thinking the dealership will sell you the download regardless, that's what they do, but there are a variety of relatively inexpensive options that bear consideration and that specifically address the lean condition, all to your benefit.
RKP- Don't pay the dealer to install it. It is to easy of a job to pay someone to do. Before I got my bike I never turned a wrench on one, then after my little spill I had to because I wasn't paying someone else to do it. If you can read and manipulate a wrench you can put on the AC.
__________________ "A wise man's heart directs him towards the right, but a foolish man's heart directs him towards the left."
Ecclesiastes 10:2
It's better to die on your feet, than to live on your knees!
'08 Night Train
V&H Big Shots Staggered
SE Stage I A/C
V&H Fuelpak
Hey tommyg and gunny, I'm certainly most grateful for your insights. Looks like the the SE-HB-AC would be easy enough to self-install; no guts no glory... just afraid that = no talent/no warranty If anyone could ID the AIM reference regarding lack of need fo mapping with 2008 HD intake mods that would be helpful... I'll just assume I'm dreamin' until then.
Ride safe & well! Your fan, RKP
RKP- It is a matter (if I remember correctly) removing 2 bolts and the AC cover. If you don't have it yet, definitely pick up the service manual from Harley. It'll run ya 60 bucks, but what the instructions with the AC doesn't cover the manual will. You can do it man and remember it will only void your warranty if you have any problems with your bike and they can trace it back to the parts you installed. If that part has no effect on whatever may of happened you're still covered by warranty.
Somewhere around the board (I know that doesn't help a lot...lol) the reference was cited, If I come across it I will link it in this thread.
__________________ "A wise man's heart directs him towards the right, but a foolish man's heart directs him towards the left."
Ecclesiastes 10:2
It's better to die on your feet, than to live on your knees!
'08 Night Train
V&H Big Shots Staggered
SE Stage I A/C
V&H Fuelpak
Hey Road King, I found your answer in the Oct issue of AIM. They are suggesting they have found minor changes on the 07s and 08s will be somewhat compensated for by the ECM. 06 and earlier models will not.
Last edited by tommyglide; 11-22-2008 at 08:19 PM.
Reason: found the correct info
I also just found that article on the automatic adjustments on 07 and 08 models October issue, pg 30. "Baffled no more" It also states minor changes??? whats considered "minor changes" I have a 08 Dyna SG, I just put on VH Slip on's no problem. My next part is the SE Heavy Breather. Are these applications considered minor? I am also thinking of purchasing a EFI Tuner? But I'm gonna try it without the tuner. I will be sure to get back to everyone.
Last edited by SuperGlide08; 01-23-2009 at 01:55 AM.
These changes are usually considered minor but they often do require A/F adjustments,,, certainly almost always on carb sickles so it's not a stretch to guess your EFI motor might also need to adjust itself or be adjusted..
Good Man--- do the job then decide if a tuner//re-map is necessary..
Popping, crackling, pinging, slow response at speed will surely get your notice..
Also----
The high-speed plug check is universal and waaay easy and repeatable at low speed..
__________________ "Fill your hands you son of a bitch"
Rooster Cogburn
screamin' eagle heavy breather: mapping? 
If anyone could ID the AIM reference regarding lack of need fo mapping with 2008 HD intake mods that would be helpful... I'll just assume I'm dreamin' until then.
Linear Mode
