Cam upgrade for 03 Heritage
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5th Gear
Joined: Apr 2018
Posts: 9
Likes: 0
From: Minnesota
did you use the abdrews tw21 cam?
Cruiser
Joined: Jul 2012
Posts: 120
Likes: 12
From: Northern VA
On my '03 Fatboy (fuel injected), I did the tensioner upgrade with Andrews 21, inner cam bearings, 95ci kit, and street ported stock heads.
LOVE it... tons of torque down low and keeps making power to rev limiter, really linear powerband.
LOVE it... tons of torque down low and keeps making power to rev limiter, really linear powerband.
Supporter
Joined: Sep 2006
Posts: 3,714
Likes: 650
From: San Ramon, Ca
That sounds good. Must be fun to ride.
Quick question though. Going to 95", is it
as smooth as before?
Quick question though. Going to 95", is it
as smooth as before?
Road Captain
Joined: Apr 2015
Posts: 632
Likes: 180
From: Menomonee Falls, Wi
Look at Wood Brothers TW-6HG.
I believe they also offered the link chain outer, and gear drive inner setup. Was used on their belt drive, but the belt drive could be replaced with a conventional link chain drive for the outer.
I believe they also offered the link chain outer, and gear drive inner setup. Was used on their belt drive, but the belt drive could be replaced with a conventional link chain drive for the outer.
Road Warrior
Joined: Oct 2014
Posts: 1,764
Likes: 266
From: Roma Alberta
other than using the manual compression releases on startup, the only difference is when you open up the throttle. starts, idles, and runs as smooth as the stock 88" did, had it dyno tuned using the Screaming Eagle race tuner. also did the hydraulic tensioner upgrade at the same time.
Road Master
Joined: Aug 2010
Posts: 992
Likes: 143
From: eastern NC
On my EFI 2000 UC sig picture, I had Andrew 26 in it when I did the upgrade. It was not that bad, but I could not tell THAT MUCH DIFFERENCE. That included installing a PCIV and custom dyno tune. I remember 85 HP and 91 lb torque---but that is testing my memory.
I just had the Andrews 21N put in my 01 carb Springer and it is like they installed a different engine---no dyno tune---just a good wrench and his ear. Now the Springer is lighter, but even the exhaust tone is better. What I am saying is I tried both and the 21N works a lot better IMHO. Also, to this point, I cannot tell a big difference in MPG, (36-39) but I am on my 3rd tank since getting it back.
I just had the Andrews 21N put in my 01 carb Springer and it is like they installed a different engine---no dyno tune---just a good wrench and his ear. Now the Springer is lighter, but even the exhaust tone is better. What I am saying is I tried both and the 21N works a lot better IMHO. Also, to this point, I cannot tell a big difference in MPG, (36-39) but I am on my 3rd tank since getting it back.
Last edited by 4 inch pistons; Apr 23, 2018 at 02:39 PM.
Seasoned HDF Member
Joined: Jan 2010
Posts: 7,385
Likes: 3,353
From: usa
Starting to think about a cam upgrade for my 03 Heritage Softail, carb. Currently have 20,000 miles and will need to do something with the tensioners within the next ten thousand. Only want a mild upgrade, not looking for something that's going to get 10 miles to the gallon. Andrews 21or 26, S&S???, screaming eagle????. It has a Hi flow kit and stock pipes that have been opened up, so far.
I believe Andrews fixed this with the 26 cams . Either cam is pretty mild
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Supporter
Joined: Sep 2006
Posts: 3,714
Likes: 650
From: San Ramon, Ca
Ok thank you
thats what I was hoping. I've never ridden
an 88 that was converted. My goal is to
gear up (either a 34T trans pulley or a
27T eng sprocket) but I want to make
sure I have the horses to pull it. Plus I
do want it to be faster (Right??!!)
thats what I was hoping. I've never ridden
an 88 that was converted. My goal is to
gear up (either a 34T trans pulley or a
27T eng sprocket) but I want to make
sure I have the horses to pull it. Plus I
do want it to be faster (Right??!!)
other than using the manual compression releases on startup, the only difference is when you open up the throttle. starts, idles, and runs as smooth as the stock 88" did, had it dyno tuned using the Screaming Eagle race tuner. also did the hydraulic tensioner upgrade at the same time.
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