Power Vision Map Needed
Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
If you are running the RR 1D5250 pipes like me, I had to manually tweak the 20 and 27 MAP columns on my AFR table and manually adjust my decel enleanment table to get rid of decel pop. I think Autotuning will help but short pipes are tougher to get rid of decel pop IMO.
Guest
Posts: n/a
If you are running the RR 1D5250 pipes like me, I had to manually tweak the 20 and 27 MAP columns on my AFR table and manually adjust my decel enleanment table to get rid of decel pop. I think Autotuning will help but short pipes are tougher to get rid of decel pop IMO.
Guest
Posts: n/a
If you are running the RR 1D5250 pipes like me, I had to manually tweak the 20 and 27 MAP columns on my AFR table and manually adjust my decel enleanment table to get rid of decel pop. I think Autotuning will help but short pipes are tougher to get rid of decel pop IMO.
I adjusted the fuel decel in the quick tune to 4 and the decel area spark to 5 (5 is the max mine wont go any higher) I am not to familiar with adjusting anything in the AFR table. How did you know that table 20 and 27 were in the decel area? What did you adjust from and too? Thanks.
Stellar HDF Member
Joined: Jan 2013
Posts: 2,464
Likes: 50
From: Rouses Point, N.Y.
If you are running the RR 1D5250 pipes like me, I had to manually tweak the 20 and 27 MAP columns on my AFR table and manually adjust my decel enleanment table to get rid of decel pop. I think Autotuning will help but short pipes are tougher to get rid of decel pop IMO.
and their is a issue will popping. when you are down shifting with the throttle closed coming to a stop like most people do the adjustment is different. they want you to go into the afr table in the first column and adjust there. lets say you notice the decel occurs from 3000 to 1750 rpms. and the afr is set to 13.0 than add fuel by changing to 12.8 in the cells from 3000 to 1750 and they also want you to add 3 to the timing area also. this pertains to builder builds like ours if the motor is basic stage 1 the best method is to use the quick tune feature on the PV. hope that makes sense.
Guest
Posts: n/a
alan just got off the phone with two different techs the decel enleanment feature is only used when u are slowing engine rpms down slowly with the throttle, like if you are cruising at 3000 rpms and you slowly drop to 1500 rpms
and their is a issue will popping. when you are down shifting with the throttle closed coming to a stop like most people do the adjustment is different. they want you to go into the afr table in the first column and adjust there. lets say you notice the decel occurs from 3000 to 1750 rpms. and the afr is set to 13.0 than add fuel by changing to 12.8 in the cells from 3000 to 1750 and they also want you to add 3 to the timing area also. this pertains to builder builds like ours if the motor is basic stage 1 the best method is to use the quick tune feature on the PV. hope that makes sense.
and their is a issue will popping. when you are down shifting with the throttle closed coming to a stop like most people do the adjustment is different. they want you to go into the afr table in the first column and adjust there. lets say you notice the decel occurs from 3000 to 1750 rpms. and the afr is set to 13.0 than add fuel by changing to 12.8 in the cells from 3000 to 1750 and they also want you to add 3 to the timing area also. this pertains to builder builds like ours if the motor is basic stage 1 the best method is to use the quick tune feature on the PV. hope that makes sense.
Tourer
Joined: Jun 2012
Posts: 264
Likes: 2
From: USA
I ran about eight or ten auto tune sessions and still couldn't stop the decel pop. Sent my tune to dynojet and they made some changes. Loaded it and all was good. Now I get no decel pop at all. Bike runs mint. Haven't messed with the tuner for a while now. I never went in to even see what changes they made. I just know the bike runs great.
Stellar HDF Member
Joined: Jan 2013
Posts: 2,464
Likes: 50
From: Rouses Point, N.Y.
Ok I found the AFR Table and made the changes inside the 1700-4000 RPM range. The set fuel was 12.5 I changed that to 12.3. The trimming you say to add 3 to is this in the quick tune potion of the PV or is it in one of the manual tables accessed from a WinPV program? Thanks.
Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
alan just got off the phone with two different techs the decel enleanment feature is only used when u are slowing engine rpms down slowly with the throttle, like if you are cruising at 3000 rpms and you slowly drop to 1500 rpms
and their is a issue will popping. when you are down shifting with the throttle closed coming to a stop like most people do the adjustment is different. they want you to go into the afr table in the first column and adjust there. lets say you notice the decel occurs from 3000 to 1750 rpms. and the afr is set to 13.0 than add fuel by changing to 12.8 in the cells from 3000 to 1750 and they also want you to add 3 to the timing area also. this pertains to builder builds like ours if the motor is basic stage 1 the best method is to use the quick tune feature on the PV. hope that makes sense.
and their is a issue will popping. when you are down shifting with the throttle closed coming to a stop like most people do the adjustment is different. they want you to go into the afr table in the first column and adjust there. lets say you notice the decel occurs from 3000 to 1750 rpms. and the afr is set to 13.0 than add fuel by changing to 12.8 in the cells from 3000 to 1750 and they also want you to add 3 to the timing area also. this pertains to builder builds like ours if the motor is basic stage 1 the best method is to use the quick tune feature on the PV. hope that makes sense.
We need to get some charts in here to help the SCPO, let me go dig....
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
Jason Momoa Is Turning Classic Harleys Into PHEVs
Verdad Gallardo
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom
Verdad Gallardo
6 Weirdest Harley-Davidsons Ever Sold to the Public
Verdad Gallardo
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
I adjusted the fuel decel in the quick tune to 4 and the decel area spark to 5 (5 is the max mine wont go any higher) I am not to familiar with adjusting anything in the AFR table. How did you know that table 20 and 27 were in the decel area? What did you adjust from and too? Thanks.
Before I did my engine build this was my AFR chart for a Stage 1:
It is in lambda, so multiply my numbers by 14.6 to compare to what you are doing.
Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
Here is my rear cylinder spark advance after I adjusted(increased) the 2 left columns up a bit, especially in the lower(high rpm) areas:
Maybe seeing somebody else's charts will help you get a feel for what you might adjust.
Maybe seeing somebody else's charts will help you get a feel for what you might adjust.