AMAZING after auto tune - Victory Forums - Victory Motorcycle Forum
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post #1 of 80 (permalink) Old 05-05-2013, 07:03 AM Thread Starter
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Default AMAZING after auto tune

Just a note to say I tuned my wife's 2012 Vegas 8-Ball yesterday. WOW. I have a PCV and auto tune. Also have the factory swept pipes. I know "they are the worst". We don't care. It's about the look and sound we wanted. We don't want "loud" pipes.
That being said I started with the pcv tune for the Vic swept pipes and filter package.
The bike would surge below 2,000 and it was lazy to rev even in neutral. I checked the A/F and the complete map was set to 13.4 as leanest and 13.0 richest.
My change was to set the A/F to [email protected] idle,[email protected] 2%,5% ,10%,20% throttle.
40% was set to 13.5 1,250-2,000, then 13.2 2250-3750 and 13.0 from 4,000 up.
I also added 6* timing everywhere.
This is just a quick info for the tune, much more detail, but I hope you get the picture.

All I can say is WOW. The low-end grunt is amazing. Throttle response has improved. Bucking and surging are 90% gone and the backfiring on decell pretty much gone away.
The bike seems louder a bit thru the pipes. That could be the butt dyno.

I've been tuning cars/bikes over 40 years. Dyno stuff for last 25.
I used a temp gun on the bike and the rear cyl was 10*-15* hotter @ idle after a hard ride then 5 min idle to see how hot it would be.

I'll go out to-day to play a bit more.

Aleck
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post #2 of 80 (permalink) Old 05-05-2013, 07:21 AM
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In my directions for the AT, it states leaving the rows up to 1500RPM at 0 and the 0% and 2% column at zero.

I will be following this thread to see how your tuning ends up. Right now I am much leaner that you in the higher RPM range but am still having disappointing MPG. I am slowing increasing my mixture and noting how it is influenced.

Please keep us posted.

Ride safe.


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2011 CrossRoads
D&D pipes, PCV, Llyodz performance filter w/strip in place, Llyod's timing wheel (set +4) and various other visual do dads. :cool:
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post #3 of 80 (permalink) Old 05-05-2013, 07:45 AM Thread Starter
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Yes. I did not use the auto tune below 1,500 rpm. I went into the pcv and manually set 0% to 14.0A/F.
The reason they don't want auto tune at idle is because of low exhaust velocity and the A/F can be scewed from backwash of fresh air . Trust me it happens.
So all I did was manually set 0% and 2%.
I think I'll set the rear cyl to [email protected] idle to see if the extra fuel helps cool it.
Try the extra timing. It really wakes the bike up. Only heard a hint of ping in [email protected] 1,500rpm and crack the throttle to 1/3 or more. I was trying to find the "ping". You would never do this normally, right?
I do run 91 Shell.
To-day I'll work on pump shot as well.
Aleck
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post #4 of 80 (permalink) Old 05-05-2013, 08:00 AM
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Ok sorry for not knowing, how do you know what a/f ratio your at? Are you hooked to a computer?

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de-badged,(self tinted) Klockwerx flare, passenger backrest, passenger touring floorboards, VictoryHID kit, Miller Mufflers short baffles,Lloyds air filter(from witchdr.)Lloyds timing wheel(6*), adjustable drop link, cut seat, removed cats, PCV w/at.
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post #5 of 80 (permalink) Old 05-05-2013, 08:48 AM
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I have Llyodz timing wheel installed. If I would have known I was going with the PCV w/AT, I would have saved the money and done it electronically. The short of it is I am already advanced +4 deg and OH YES it does wonders for waking up the bike.

At this point in time I'm not overly impressed by the PCV w/AT set up. I bought the bike as my daily rider so MPG is more important to me than HP or torque. With my stage 1, I had 45 MPG most days but now I'm struggling to have 40 MPG. Since my nearest tuner (Rylan) is over 6 hours away, the AT seemed to be a god idea. In hindsight, I don't know. The whole thing is really putting me off on buying cams. While I enjoy the extra power (had cams in my KP) the perceived trade off for my use seems too great a loss.

Anyway, please keep the thread updated.

Ride safe.

2011 CrossRoads
D&D pipes, PCV, Llyodz performance filter w/strip in place, Llyod's timing wheel (set +4) and various other visual do dads. :cool:
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post #6 of 80 (permalink) Old 05-05-2013, 08:52 AM
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Quote:
Originally Posted by dtmmil View Post
Ok sorry for not knowing, how do you know what a/f ratio your at? Are you hooked to a computer?

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Based on your setup (in your signature), you cannot. You would need wide band O2 sensors in your pipes and a way to read them. We are talking about the Power Commander 5 with AutoTune (PCV w/AT) fuel management system that gives the ability to set your Air/Fuel Ratio and watch it real time, if desired.

Ride safe.

2011 CrossRoads
D&D pipes, PCV, Llyodz performance filter w/strip in place, Llyod's timing wheel (set +4) and various other visual do dads. :cool:
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post #7 of 80 (permalink) Old 05-05-2013, 09:11 AM Thread Starter
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Yes. Use your laptop. I didn't give all the details on the tune-up. With the laptop you can set the A/F and see it live. With the bike idling @ 0% I set the A/F to 14:1. PCV was like 13.4. That's way too rich. Remember you have to set each cylinder separate. I also set 2% manually below 3,000rpm to 14:1. Also 2% is set @ 13.8 3,000rpm and up. I might need to go 13.6 or so on rear cyl as it runs hotter. A little extra fuel helps cool it. I could try a degree or two less timing too. It's better to add fuel tho.
As rpm climbs and throttle % rises I added fuel as you are under more load.
It takes fuel to make power.
I just did a quick ride last night on my first tune. I guessed what the bike would like. To-day I'll go out in the warmer afternoon and might need to add a bit more fuel to keep away from "ping".
Also as you add timing a motor tends to go leaner .
Extra timing gives better throttle response. BUT, too much timing can cause the dreaded death rattle.
Tuning is not a black art. You just need to know/understand about A/F and timing. Nothing is set in stone. Give the motor what it wants. It will respond. Get too far away from a safe tune and then you can create a problem.

Aleck
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post #8 of 80 (permalink) Old 05-05-2013, 09:19 AM
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Quote:
Originally Posted by vagabondjpm View Post
Based on your setup (in your signature), you cannot. You would need wide band O2 sensors in your pipes and a way to read them. We are talking about the Power Commander 5 with AutoTune (PCV w/AT) fuel management system that gives the ability to set your Air/Fuel Ratio and watch it real time, if desired.

Ride safe.
Thats what i was wondering thanks. I know nothing of the computer tuning so i read a lot of these trying to understand. Thanks!

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currently bikeless

2012 Cross Country(Imp blue)
de-badged,(self tinted) Klockwerx flare, passenger backrest, passenger touring floorboards, VictoryHID kit, Miller Mufflers short baffles,Lloyds air filter(from witchdr.)Lloyds timing wheel(6*), adjustable drop link, cut seat, removed cats, PCV w/at.
1978(2009) Honda cb750 chopper
Hawley MN(sold)
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post #9 of 80 (permalink) Old 05-05-2013, 07:27 PM
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Quote:
Originally Posted by stinkybutt View Post
Yes. Use your laptop. I didn't give all the details on the tune-up. With the laptop you can set the A/F and see it live. With the bike idling @ 0% I set the A/F to 14:1. PCV was like 13.4. That's way too rich. Remember you have to set each cylinder separate. I also set 2% manually below 3,000rpm to 14:1. Also 2% is set @ 13.8 3,000rpm and up. I might need to go 13.6 or so on rear cyl as it runs hotter. A little extra fuel helps cool it. I could try a degree or two less timing too. It's better to add fuel tho.
As rpm climbs and throttle % rises I added fuel as you are under more load.
It takes fuel to make power.
I just did a quick ride last night on my first tune. I guessed what the bike would like. To-day I'll go out in the warmer afternoon and might need to add a bit more fuel to keep away from "ping".
Also as you add timing a motor tends to go leaner .
Extra timing gives better throttle response. BUT, too much timing can cause the dreaded death rattle.
Tuning is not a black art. You just need to know/understand about A/F and timing. Nothing is set in stone. Give the motor what it wants. It will respond. Get too far away from a safe tune and then you can create a problem.

Aleck
I think I may be missing something because unless it is a "auto-tune" option I don't see anything in my software for just the pcv to adjust the a/f settings...just values for plus or minus fuel in the tables

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pc5 w/at, bassani pro-street turnouts, intake, lloydz super wheel +6
2004 Vtx-1300c *retired and sold*
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post #10 of 80 (permalink) Old 05-05-2013, 07:29 PM
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You are missing the AutoTune. Without that, you will not see A/F ratios.


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2011 CrossRoads
D&D pipes, PCV, Llyodz performance filter w/strip in place, Llyod's timing wheel (set +4) and various other visual do dads. :cool:
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