FXDF Fat Bob 103ci vs 110ci
Tourer
Joined: Jun 2007
Posts: 293
Likes: 0
From: usa
I just bought a month ago a new Fat Bob. My dealer installed the 103" SHO build using all Screaming Eagle parts, except for the D&D Fat Cats.
It makes 42 RWHP more than a stock 96" and 22 ft lb over stock.
https://www.hdforums.com/forum/dyna-...o-numbers.html
It makes 42 RWHP more than a stock 96" and 22 ft lb over stock.
https://www.hdforums.com/forum/dyna-...o-numbers.html
better off to go with a reputable indy or site sponsor and use your stock cylinders bored out and porting your stock heads with bigger intake valves.
for less then $4000 i had this done by fairbanks motors and build included se roller rockers/push rods, se clutch spring, 10:5 to 1 wiseco's, woods 7h cams, ported stock heads with bigger intakes. this included all tear down/ assembly and over 4 hrs. on the dyno
109.9/118 on a 07
fatcat exhaust and aftermarket tuner/airfilter and backing plate i already had on my 74.4/90.1 stage 1 setup.
Outstanding HDF Member
Joined: Jun 2007
Posts: 2,687
Likes: 6
From: Kalaui Kona HI
The 103 is efficient and will give you no problems if done correctly. I have over 11000. miles on mine and love it. 89hp and 105ft/lbs of torque. It has low end power which I like and seldom take it over 3200 rpms. It sounds awesome also.
Tourer
Joined: Jun 2007
Posts: 293
Likes: 0
From: usa
super unleaded with 10% enthanol or without, but it's getting hard to fine. i'm at 10:4 to 1 and no problem tts master tune runs great 38-42 mpg . actually i'm selling the top end and flywheels, got some bigger ones to go on in the next few weeks.
Thread Starter
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Tourer
Joined: Nov 2008
Posts: 449
Likes: 5
Well I called this afternoon and did find out from the service department at my dealership that is was the big bore SE 103ci. But you all knew that I am sure!
He did confirm his statement from yesterday that the 103 has better performace than the 110ci because of the regulation with emissions.
He did confirm his statement from yesterday that the 103 has better performace than the 110ci because of the regulation with emissions.
Road Warrior
Joined: Nov 2008
Posts: 1,789
Likes: 9
From: Double Oak, Texas
i'd like to see that dyno sheet! you'll need major head work to acheive that kind of gain.
better off to go with a reputable indy or site sponsor and use your stock cylinders bored out and porting your stock heads with bigger intake valves.
for less then $3500 i had this done by fairbanks motors and build included se roller rockers/push rods, se clutch spring, 10:5 to 1 wiseco's, woods 7h cams, ported stock heads with bigger intakes. this included all tear down and assembly.
109.9/118 on a 07
fatcat exhaust and aftermarket tuner/airfilter and backing plate i had on my 74.4/90.1 stage 1 setup.
better off to go with a reputable indy or site sponsor and use your stock cylinders bored out and porting your stock heads with bigger intake valves.
for less then $3500 i had this done by fairbanks motors and build included se roller rockers/push rods, se clutch spring, 10:5 to 1 wiseco's, woods 7h cams, ported stock heads with bigger intakes. this included all tear down and assembly.
109.9/118 on a 07
fatcat exhaust and aftermarket tuner/airfilter and backing plate i had on my 74.4/90.1 stage 1 setup.
The engine runs just fine with super unleaded so far.
The 42 HP gain. Harley claims a max 63 RWHP figure on a stock 96" twin cam. With mine at 105HP, that is a 42 HP difference. Spent a wad to get it there.
View of hidden signage.
Stock head parts on left, SE CNC ported head on right
Last edited by Centerline; Dec 22, 2008 at 12:50 AM.
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Road Warrior
Joined: Nov 2008
Posts: 1,789
Likes: 9
From: Double Oak, Texas
better off to go with a reputable indy or site sponsor and use your stock cylinders bored out and porting your stock heads with bigger intake valves.
for less then $4000 i had this done by fairbanks motors and build included se roller rockers/push rods, se clutch spring, 10:5 to 1 wiseco's, woods 7h cams, ported stock heads with bigger intakes. this included all tear down/ assembly and over 4 hrs. on the dyno
109.9/118 on a 07
fatcat exhaust and aftermarket tuner/airfilter and backing plate i already had on my 74.4/90.1 stage 1 setup.
for less then $4000 i had this done by fairbanks motors and build included se roller rockers/push rods, se clutch spring, 10:5 to 1 wiseco's, woods 7h cams, ported stock heads with bigger intakes. this included all tear down/ assembly and over 4 hrs. on the dyno
109.9/118 on a 07
fatcat exhaust and aftermarket tuner/airfilter and backing plate i already had on my 74.4/90.1 stage 1 setup.