Need more power from my 107
HDF Community Team
Joined: Jun 2006
Posts: 12,779
Likes: 2,609
From: san antonio
Thank you everyone for your thoughts and ideas, and especially HD Pilot for your excellent write up. I will go with the 30t gear as this sounds like the best solution for me (for now Lol.) It looks like this will be more of a winter project too as I don't want my bike down for anything more than a day or two during summer riding season. In hindsight I really should've just saved up a little more cash and bought the S&S 124 engine. My 107 kit with everything including parts, labor, tuning etc, ran around $4500, for a little more I could've stepped into a whole new league. I'm not disappointed with the 107's performance, but I believe this power and torque level should be the minimum factory standard for all HD bikes. Unfortunately after a year of riding with the 107 I'm now used to it and it's no longer enough, so here I go again chasing after the ever elusive higher HP and TQ.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,117
Likes: 7,643
From: Poolville
What rear pulley do you have? If you have say ye a 32/68 which is what I believe you have (a 2.875:1 overall ratio), you can do 30/70 and use the same belt. Usually every one tooth you decrease on the trans you will need to increase 2 on the wheel pulley to keep the same belt. But I think this will still work and give an overall ratio of 3.15:1. Which is a real nice and easy mod...
Elite HDF Member
Joined: Jul 2007
Posts: 3,903
Likes: 1,122
From: 48.067222,12.863611
God, you sound just like me. Had a 107 all bore done last year. More touring oriented. Does 115 tq & 113 HP. Love it. Like glass.....BUT........I want more!
I figure I will ride the fuvk outta this and when she goes, I'll just go 124 and make a bar hopper outta her.
I figure I will ride the fuvk outta this and when she goes, I'll just go 124 and make a bar hopper outta her.
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
Original motor in my 08 was a stock 96". Went 103" right away, had 99hp. Messed around with it finally got it squared away and tuned right 112hp. Did a 107" in May of this year, 128hp, yeah I feel the difference. Exhaust is on the horizon along with a re-tune maybe in the spring, should see over 130+hp.
Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
Likes: 88,863
From: Western South Dakota
Buy a 124 and then sell your 107.
Simple enough.
Grand HDF Member
Joined: Sep 2010
Posts: 3,580
Likes: 215
From: Illinois
Now that's a hell of a plan.
Just curious...how much would someone be looking at for the 143 setup (motor, tbody, pipe to fit the motor)? Is a new trap door required or recommended?
Thanks
Just curious...how much would someone be looking at for the 143 setup (motor, tbody, pipe to fit the motor)? Is a new trap door required or recommended?
Thanks
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Road Warrior
Joined: May 2011
Posts: 1,956
Likes: 439
From: florida
I could be talked into this fairly easy!
Scott are you rolling them out stock from S&S or have you played with cams and compression?
I wonder? Would 15,000 make you jump on it.... Heard one fire up at an Indy over here and let's just say it was badass! Had everyone in the shop smiling. What's the price on just the motor , and tb? D and D has a pipe for a couple grand! Lol
Last edited by cdonis; Jul 17, 2015 at 04:27 PM.