Adjusting Autotune
Road Master
Joined: Apr 2008
Posts: 866
Likes: 1
From: FT BRAGG, NC
this is true, road master streetglidemedic. Bunch of yahoos is meant in a good way. As i have learned great things here in the galaxy of hdf. A pcv from fuelmoto is on course to my domicile as i type. And surely i will seek advice from the imformative bunch of yahoos in the galaxy of hdf.
Journey safe.
My the force be with ya'll.
Journey safe.
My the force be with ya'll.
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
I have only used "Accept Trims" only once, and that was to establish a rich base map from which to start after doing a cam upgrade. I used the Target AFR tables that Fuel Moto provided, which are richer than the one shown below. One of the best features of the PCV is the map switch, giving you the option of switching between two maps (basic PCV) or the base map and AT (PCV-AT). With the latter you can use a relatively rich base map for optimum cooling and set the Target AFR tables leaner in the cruise range for best gas mileage. When the going gets hot in summer traffic just flip the switch and you're in the cooler base map. Get moving again and switch back to economy mode. This is a feature too few PCV owners are taking advantage of, IMO.
Using this strategy my gas mileage is near-stock (up to 50mpg) and power is impressive with the SE255 cams, FM AC, and DT Jackpot mufflers. This is a great combo, IMO.
Last edited by iclick; Jun 13, 2009 at 02:01 PM.
Road Warrior
Joined: Jan 2007
Posts: 1,779
Likes: 223
From: Northern California
Bob,
You mentioned you've only accepted the trims once. I've accepted them three times since installing AT and enabling it. I've been surprised to see such large changes each time I looked at the trims and accepted them. Should I not be accepting trims more then once? Whats your take on this, Thx, Rich
You mentioned you've only accepted the trims once. I've accepted them three times since installing AT and enabling it. I've been surprised to see such large changes each time I looked at the trims and accepted them. Should I not be accepting trims more then once? Whats your take on this, Thx, Rich
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
Bob,
You mentioned you've only accepted the trims once. I've accepted them three times since installing AT and enabling it. I've been surprised to see such large changes each time I looked at the trims and accepted them. Should I not be accepting trims more then once? Whats your take on this, Thx, Rich
You mentioned you've only accepted the trims once. I've accepted them three times since installing AT and enabling it. I've been surprised to see such large changes each time I looked at the trims and accepted them. Should I not be accepting trims more then once? Whats your take on this, Thx, Rich
. IMO once it trims there is no advantage in accepting the trims. For example if you have 10 in the base map with a -10 trim, it looks the same to the PCV as a 0 and a 0 (both 10-10 and 0-0 equal 0). It's just that a close base map will trim faster than an inaccurate one.Like I said, when I made my cam swap two months ago I set the Target AFR tables back to FM's richer settings to establish a cooler-running map for use with the map-switch function, and after riding through all ranges over a day's ride I accepted the trims to establish that rich base map. I then set my lean target AFR's and the trims were created to meet those new lean specs. It didn't take long to establish the trims either time, and now I can switch between the rich base map (which never changes) to AT (which is constantly auto-tuning to my leaner specs).
Last edited by iclick; Jun 13, 2009 at 02:40 PM.
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