Big Bore Project Part Three
Thread Starter
|
Road Warrior
Joined: Mar 2007
Posts: 1,377
Likes: 8
From: Atlanta, GA
We had some good weather today, so I fired the bike up and started to break the engine in. Instead of nursing the bike for the first fifty miles, I went with the recommendation run a bit harder. I took the bike out onto the road and ran through a series of accelerations from idle to 4000 rpm - about ten runs total. Maybe it was me but the bike felt like it was gaining power as I progressed through the runs. I rode about sixty miles frequently varying the engine speeds on back roads and a short stretch of highway.
And now for my first impression. Wow, the 107 has a ton of power! The difference is extremely noticeable. It is amazing how much more power the bike has but it has completely maintained an outstanding ride at cruise. Fuel Moto's base map for my setup is about as good as you can get without putting the bike on a dyno. I changed over to Rinehart True Duals more for aesthetics and sound reasons than trying to maximize performance. One word explains my sentiments on going with the 107 matched with the Rinehart TD's. Outstanding! Yes, I can have better performance and probably a cleaner torque curve had I stayed with my stock crossovers and the Jackpots, but I couldn't resist.
I'm not a bandwagon kind of guy, but once again Fuel Moto has done right by me. To recap my performance gains, the Fuel Moto stage 1 with the Jackpots gave me slightly more power. Nothing to brag about, but still nice. The cam swap made a very significant improvement in performance and was worth it. Moving to the 107 was the biggest performance gain yet. I can't imagine what it would have been like had I went from stock straight to the Fuel Moto 107 kit.
Bottom line is I am beyond thrilled and can hardly wait to put a ton of miles on this riding season!
And now for my first impression. Wow, the 107 has a ton of power! The difference is extremely noticeable. It is amazing how much more power the bike has but it has completely maintained an outstanding ride at cruise. Fuel Moto's base map for my setup is about as good as you can get without putting the bike on a dyno. I changed over to Rinehart True Duals more for aesthetics and sound reasons than trying to maximize performance. One word explains my sentiments on going with the 107 matched with the Rinehart TD's. Outstanding! Yes, I can have better performance and probably a cleaner torque curve had I stayed with my stock crossovers and the Jackpots, but I couldn't resist.
I'm not a bandwagon kind of guy, but once again Fuel Moto has done right by me. To recap my performance gains, the Fuel Moto stage 1 with the Jackpots gave me slightly more power. Nothing to brag about, but still nice. The cam swap made a very significant improvement in performance and was worth it. Moving to the 107 was the biggest performance gain yet. I can't imagine what it would have been like had I went from stock straight to the Fuel Moto 107 kit.
Bottom line is I am beyond thrilled and can hardly wait to put a ton of miles on this riding season!
Thread Starter
|
Road Warrior
Joined: Mar 2007
Posts: 1,377
Likes: 8
From: Atlanta, GA
Not yet. I decided to install the 68t final drive sprocket to increase the gear ratio to the 09-10 ratio's. Cheap and only a one hour project. After that I will tune with TTS and then later see what the dyno thinks.
During breaks in the weather I have really enjoyed the performance gains from this project. I really notice a big difference across the whole range, but the midrange stands out the most - 2nd, 3rd, 4th gears. This probably has a lot to do with my cam selection, but whatever the case, this build combo has made me extremely happy. I think I will be even happier once I get everything fine tuned.
During breaks in the weather I have really enjoyed the performance gains from this project. I really notice a big difference across the whole range, but the midrange stands out the most - 2nd, 3rd, 4th gears. This probably has a lot to do with my cam selection, but whatever the case, this build combo has made me extremely happy. I think I will be even happier once I get everything fine tuned.
Road Master
Joined: Dec 2007
Posts: 975
Likes: 8
From: Houston
You're never going to know what performance you got out of the head work.
Thread Starter
|
Road Warrior
Joined: Mar 2007
Posts: 1,377
Likes: 8
From: Atlanta, GA
I hear what you are saying. I know I have the option of getting a baseline dyno run without the sprocket, but I am undecided whether it really matters to me or not to get that kind of information. I am less concerned about the numbers and more interested in tuning my final (for now) setup.
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
Road Master
Joined: Dec 2007
Posts: 975
Likes: 8
From: Houston
I hear what you are saying. I know I have the option of getting a baseline dyno run without the sprocket, but I am undecided whether it really matters to me or not to get that kind of information. I am less concerned about the numbers and more interested in tuning my final (for now) setup.
Fuel Moto is officially building and testing heads, I'll post my numbers in due time.
I've enjoyed reading your thread. Thanks!
Banned
Joined: Jun 2011
Posts: 8
Likes: 3
Excellent Posting!
First time Harley owner and I'm going through the same with my 04 Night Train.
You said that the heads were powder coated. The actual intake/exhaust ports had this in them??? I wondered because the intake on mine had areas of black and areas of bare metal. I thought that this was from back firing or something.
What was your secret to removing the old gasket material from the heads?
First time Harley owner and I'm going through the same with my 04 Night Train.
You said that the heads were powder coated. The actual intake/exhaust ports had this in them??? I wondered because the intake on mine had areas of black and areas of bare metal. I thought that this was from back firing or something.
What was your secret to removing the old gasket material from the heads?