Another PCIII question
Ultimate HDF Member
Joined: Nov 2005
Posts: 5,256
Likes: 5
From: Concord, CA
RE: Another PCIII question
iClick,
So he said that the timing advancement in the cruise range wont help much on a low compression engine. He mentioned that unless it was severely retarded because of high compression it would be splitting hairs.
Here is the dyno (photo not scan because I wasn't in the office) and the maps. Notice how different as well as how much he leaned the map in some spots...
Dyno sheet. Red is Fuelmoto tune, Blue is after
Look at the before vs after AFR
Fuel table 1
Fuel table 2 Look at how lean for this one...
Ignition timing
And of course, my original map...
So he said that the timing advancement in the cruise range wont help much on a low compression engine. He mentioned that unless it was severely retarded because of high compression it would be splitting hairs.
Here is the dyno (photo not scan because I wasn't in the office) and the maps. Notice how different as well as how much he leaned the map in some spots...
Dyno sheet. Red is Fuelmoto tune, Blue is after
Look at the before vs after AFR
Fuel table 1
Fuel table 2 Look at how lean for this one...
Ignition timing
And of course, my original map...
Tourer
Joined: Feb 2006
Posts: 429
Likes: 1
From: Southampton, Pa
RE: Another PCIII question
I think the biggest problem is that most of the fuel injection companies I've delt with over the past 25 years have always given me settings that were on the fat side because of the way people are they don't want the hassle of someone coming back and trying to get a new engine because the settings were lean, better to err on the richside. This is why I'm still using a Zero PC3 map and only making changes where I feel are needed. If I can ever get the bike out and up to normal operating temps, but it's just tooooooo damm cold out right now. How big were the changes? and did it stop the decell pops?
Road Master
Joined: Dec 2006
Posts: 1,058
Likes: 6
From: Omaha Nebraska
RE: Another PCIII question
ORIGINAL: Rhubarb
Iclick...
Oh man was my map from Fuelmoto off!
I'll scan my dyno sheet on Monday when I get to work.
I was running so rich, I'm suprised it ran at all!
I have to pull the maps off the bike, but wife wants to go to dinner soon.
I'll grab em tonight though. Cylinders were way way different.
Original AF was as low as 11:1 at times...
Original max run: 66hp 73tq
After Tune max run: 79hp 83tq
Smooth as a sumbitch now too. I was VERY skeptical coming into this, but I'm a believer now. Without all the right tools there is no way to do it right from home.
Iclick...
Oh man was my map from Fuelmoto off!
I'll scan my dyno sheet on Monday when I get to work.
I was running so rich, I'm suprised it ran at all!
I have to pull the maps off the bike, but wife wants to go to dinner soon.
I'll grab em tonight though. Cylinders were way way different.
Original AF was as low as 11:1 at times...
Original max run: 66hp 73tq
After Tune max run: 79hp 83tq
Smooth as a sumbitch now too. I was VERY skeptical coming into this, but I'm a believer now. Without all the right tools there is no way to do it right from home.
ORIGINAL: Rhubarb
It doesn't have trouble all the time. A lot of the time it runs great. Every once in a while it stutters or spits just enough to get me off balance.
It's done a real number on my low speed confidence. My appointment is at 10am tomorrow, so I should have some info by tomorrow night.
I'm hoping to get 40mpg and perfect running. If I can even just get the perfect running I'll be happy.
$375 for a tune! Going labor rate here is $100 an hour, they tell me 2.5-3 hours. I'm gonna sit there for all 3 hours if I'm paying full rate.
It doesn't have trouble all the time. A lot of the time it runs great. Every once in a while it stutters or spits just enough to get me off balance.
It's done a real number on my low speed confidence. My appointment is at 10am tomorrow, so I should have some info by tomorrow night.
I'm hoping to get 40mpg and perfect running. If I can even just get the perfect running I'll be happy.
$375 for a tune! Going labor rate here is $100 an hour, they tell me 2.5-3 hours. I'm gonna sit there for all 3 hours if I'm paying full rate.
Tourer
Joined: Feb 2006
Posts: 429
Likes: 1
From: Southampton, Pa
RE: Another PCIII question
Take a look at this map that I made about a week ago. I didn't add the 0% throttle changes to eliminate the decell pops yet. I develpoed it more for fuel economy and air fuel ratios. I also made changes to the ignition table that retards the timing on hard acceleration in the 40 to 100% throttle range, at the 1500 to 3000 RPM range.
Elite HDF Member
Joined: Jan 2006
Posts: 4,357
Likes: 11
From: The Lone Star State
RE: Another PCIII question
Hey Rhubarb,
I decided to take my bike into the tuner. He is going to install my PCIII and tune each cylinder as well as do before and after dyno runs. So I am excited to get in there and get my bike running the best it can.
I decided to take my bike into the tuner. He is going to install my PCIII and tune each cylinder as well as do before and after dyno runs. So I am excited to get in there and get my bike running the best it can.
Ultimate HDF Member
Joined: Nov 2005
Posts: 5,256
Likes: 5
From: Concord, CA
RE: Another PCIII question
Warg, I think you will like it. Just make sure they do a good job! Some will tune for WOT only.
I can't believe the difference. I have about 300 miles since my Saturday tune and it's night and day.
Gas mileage is not great, but then again I can't keep out of the throttle. Once I get over the change, I'll get a good number I'm sure.
I can't believe the difference. I have about 300 miles since my Saturday tune and it's night and day.
Gas mileage is not great, but then again I can't keep out of the throttle. Once I get over the change, I'll get a good number I'm sure.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
RE: Another PCIII question
ORIGINAL: Rhubarb
iClick,
So he said that the timing advancement in the cruise range wont help much on a low compression engine. He mentioned that unless it was severely retarded because of high compression it would be splitting hairs.
Here is the dyno (photo not scan because I wasn't in the office) and the maps. Notice how different as well as how much he leaned the map in some spots...
Dyno sheet. Red is Fuelmoto tune, Blue is after
Look at the before vs after AFR
iClick,
So he said that the timing advancement in the cruise range wont help much on a low compression engine. He mentioned that unless it was severely retarded because of high compression it would be splitting hairs.
Here is the dyno (photo not scan because I wasn't in the office) and the maps. Notice how different as well as how much he leaned the map in some spots...
Dyno sheet. Red is Fuelmoto tune, Blue is after
Look at the before vs after AFR