103 stage 3 upgrade
Road Warrior
Joined: Sep 2008
Posts: 1,318
Likes: 54
From: Texas Panhandle
+1 on the lower end upgrades. It sucks that the MOCO makes US fix their poor quality engineering on these bikes!
You really should get the new 96'er cranks trued and welded, along with the timken bearing conversion, and the SE compensator if your building up the engine. The timken bearings is something HD went away from a few years ago, and now sell them as "upgrades". Same with the SE compensator.
Do those things and your lower end will be as strong as the upper end. Just my opinion.
Do those things and your lower end will be as strong as the upper end. Just my opinion.
Outstanding HDF Member
Joined: Jun 2007
Posts: 2,687
Likes: 6
From: Kalaui Kona HI
These guys are in my back yard might have to give them a call, The one thing is the "screaming chicken" is a reliable build have over 19k on her with only one starter issue which could have been prevented if I had a better starter or auto comp release. To get larger numbers on paper and be on the side of the road is not in my opinion an upgrade. Upgrade your bottom end when going larger or you will be on the side of the road.
Road Warrior
Joined: Nov 2008
Posts: 1,789
Likes: 9
From: Double Oak, Texas
Common expression I have read is how much more power many 95" ers put up than say 96" engines upsized to bigger cubes. Certainly may be so, but ya also gotta ask, where are those peak numbers, how wide is the big torque band, etc.
Cruiser
Joined: Sep 2007
Posts: 157
Likes: 0
From: South Carolina
Here is what I have in my 95" build:
HQ0033-G cam shown here
http://head-quarters.com/html/twin_cam.html
and the sport package shown here
http://head-quarters.com/html/tc95_kits.html
Club Member
Joined: Feb 2008
Posts: 11,483
Likes: 39
From: Passaic County, NJ
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Outstanding HDF Member
Joined: Sep 2008
Posts: 2,408
Likes: 1
From: pottsville,pa
I'm guessing down in the low 40's maybe high 30's depending on if your doing a lot of city riding. And yes, you will be on the gas more than you were before, so that doesn't help! When I did the stage 2, it was like the motor really woke up, but when I swapped cams and had the heads ported, it was like a whole new bike! The difference is night & day!
Thread Starter
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Stage IV
Joined: May 2009
Posts: 4
Likes: 0
From: Pittsburgh
I did a 103 stage 3 kit last summer on a 2009 super glide custom... pleaty of reliable power the 10 1/2:1 pistons make a big difference. Like the other guy said make sure you buy the super tuner. My Dyno readings were just about the same.