Cam recommendations for 2006 Stock head 88 ci tc touring
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1st Gear
Joined: Aug 2019
Posts: 5
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From: MI
Cam recommendations for 2006 Stock head 88 ci tc touring
Hello gents i was looking forward to upgrading my cams to gear drive . Would anyone be able give advice on this from past experience. I would like to go for a good low end cam that gives best results for a stock 2006 88 tc heads. The only mods i have is a kn high flow , vance and hines 2-1 pro pipes and the notorious fuelpak. Thanks for any info.
Road Warrior
Joined: Jul 2017
Posts: 1,366
Likes: 664
From: Texas
Until someone comes along, there's some cam discussion in the Engine Mechanical section for the TC88 right now to check out. Here's one.
https://www.hdforums.com/forum/engin...am-help-2.html
hth
https://www.hdforums.com/forum/engin...am-help-2.html
hth
Cruiser
Joined: Jul 2008
Posts: 235
Likes: 42
From: Bama
I just upgraded to S&S 509 gear drive cams and I'm pleased with the results. Throttle response is much crisper than stock and made the bike more fun to ride overall. I wish I would have done this upgrade years ago. Good luck!
Thread Starter
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1st Gear
Joined: Aug 2019
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From: MI
Im not sure what the run out is . It only has 6000 miles on it.
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Seasoned HDF Member
Joined: Sep 2008
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From: San Diego, CA
He asked about your run out, because you need to have .004" or less (some say .003" or less) run out before you can use gear drive cams.... and run out over .004" will eventually ruin the gear drive cams, they will self destruct, and you'll have serious issues....
Mileage is irrelevant. Harley had issues with run out numbers, from about 2004 on..... they kept changing the run out spec, rather than fix the problem... They increased it two or three times over the years... I believe they got as high as .012" for "allowable" run out.... any machinist will tell you that anything over .004 isn't good.... it's only acceptable, because Harley says so.... I'm sure they went this route for a low cost way of limiting warranty crank issues.
That's the reason why many big bore, late model, twin cam builds have their cranks balanced and welded before going over 120ish HP... Hoban Brothers, DarkHorse Crankworks says, "We true all crankshafts to within .0015” total indicated run-out at each main bearing race and guarantee them to stay within .0005” for 2 years and unlimited miles."
Anyways, there is a good chance your 2006 has too much run out, right from the factory, to allow for the use of gear drive cams..... makes sure to measure before you order the gear drive cams...
Good luck with your mods....
Last edited by hattitude; Aug 10, 2019 at 10:35 PM.
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Road Warrior
Joined: Nov 2007
Posts: 1,800
Likes: 307
From: Houston, Texas
To add a little to the great info Hattitude said, the run out is a measurement of the the end of the crank. The stock cranks rarely turn perfectly true. They wobble a little measured with a dial indicator.
Get a new cam plate with hydraulic tensioners. They will last 100,000 miles easily and increase your cam choices. Gear drive are also louder.
Cam choices are personal preference and riding style. For consideration, look at SE204's for a good low to mid rage cam with lots of torque. I think they were originally designed for an 88 and I have them in a 103 and love them. They can grow with your build if you bump up later. Everyone, like me, is going to tell you the cam they have and like. They may or may not be good for you if your riding style or needs are different than theirs. Do your research and if you are going to have an indy install. tell them how you ride, what you want out of a cam and they can make suggestions.
Good luck.
Get a new cam plate with hydraulic tensioners. They will last 100,000 miles easily and increase your cam choices. Gear drive are also louder.
Cam choices are personal preference and riding style. For consideration, look at SE204's for a good low to mid rage cam with lots of torque. I think they were originally designed for an 88 and I have them in a 103 and love them. They can grow with your build if you bump up later. Everyone, like me, is going to tell you the cam they have and like. They may or may not be good for you if your riding style or needs are different than theirs. Do your research and if you are going to have an indy install. tell them how you ride, what you want out of a cam and they can make suggestions.
Good luck.