Conversion cams for TC 88
Thread Starter
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Cruiser
Joined: Dec 2014
Posts: 136
Likes: 11
From: Greenville, SC
Conversion cams for TC 88
Hello All -
Does anyone know, for a pre 2007 TC 88 engine, are there conversion cams with stock cam profile, that can be used to change a 2003 Road King to the 2007 forward cam plate? I want to move to the roller chain for front and back cam chain tensioners. Feuling makes a conversion kit (#7088) with this chain set-up, but I want to stay with stock cam profile. Feuling does not offer a conversion cam with stock profile.
Thanks
Does anyone know, for a pre 2007 TC 88 engine, are there conversion cams with stock cam profile, that can be used to change a 2003 Road King to the 2007 forward cam plate? I want to move to the roller chain for front and back cam chain tensioners. Feuling makes a conversion kit (#7088) with this chain set-up, but I want to stay with stock cam profile. Feuling does not offer a conversion cam with stock profile.
Thanks
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,158
Likes: 11,247
From: San Diego, CA
When I upgraded the cam chest in my '03 Heritage, I wanted to stay with my SE203 cams... I had a great tune and the bike ran excellent.... I didn't want to change to conversion cams and go through the retuning process...
I searched for options that would allow me to use a pre-'07 cam with an '07+ cam plate.... The closest thing I found, was a machine shop, that would press a bushing on the cam plate end of a pre-'07 HD cam so it would fit the '07+ cam plate... problem was, you still had a cam with the link chain sprocket, and would need to run the OEM link chain on the back of the cam plate. That makes it no better than the SE orange cam plate fix....
If you want to keep your current cam, you will need to use the HD Screamin Eagle cam plate upgrade... you'll get a new cam plate, better oil pump, hydraulic tensioners, a front roller chain... but you will still be using the rear link chain....
I decided to go with the '07+ cam plate conversion and went with conversion cams.... there are very good choices that are bolt in and not radical, but all will need a new tune...
Good luck with your decision...
I searched for options that would allow me to use a pre-'07 cam with an '07+ cam plate.... The closest thing I found, was a machine shop, that would press a bushing on the cam plate end of a pre-'07 HD cam so it would fit the '07+ cam plate... problem was, you still had a cam with the link chain sprocket, and would need to run the OEM link chain on the back of the cam plate. That makes it no better than the SE orange cam plate fix....
If you want to keep your current cam, you will need to use the HD Screamin Eagle cam plate upgrade... you'll get a new cam plate, better oil pump, hydraulic tensioners, a front roller chain... but you will still be using the rear link chain....
I decided to go with the '07+ cam plate conversion and went with conversion cams.... there are very good choices that are bolt in and not radical, but all will need a new tune...
Good luck with your decision...
Thread Starter
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Cruiser
Joined: Dec 2014
Posts: 136
Likes: 11
From: Greenville, SC
Thanks, your input matches what I am finding with my research. There are opinions that keeping the rear link chain with hydraulic tensioner does not result in longer life of the rear tensioner pad as compared to the spring loaded tensioner.
Any opinions?
Any opinions?
Tourer
Joined: Aug 2011
Posts: 388
Likes: 36
From: USA
Go to Andrews Cams, Conversation cam for 88" twin cam motors if the link below doesn't work for some reason. I'd guess you want Grind A or B. Many here use the 21N or 26N.
http://www.andrewsproducts.com/sites.../page_07_0.pdf
http://www.andrewsproducts.com/sites.../page_07_0.pdf
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,158
Likes: 11,247
From: San Diego, CA
Many have used the SE Hydraulic tensioner conversion that retains the rear cam link chain, with little to no issues. Many believe the link chain contributes to the fast spring tensioner pad deterioration, but it is the spring pressure and pad composition that are probably the biggest contributors. Many also believe that it was just a small lot of link chains that had rough edges, contributing to the issue. These same people will say that with like 20K miles on the link chain, it may become "polished" to a point where it will no longer affect the tensioner pads... I don't know if I buy that, but the fact remains, I've never seen a post where someone said they switched to the SE Hydraulic tensioner "upgrade", which keeps the rear link chain, and then had a catastrophic cam tensioner failure...
Additionally, there is a tool out there (I can't find the link right now, but know it exists) that will allow you bore out your cases to enlarge the inner cam bearing holes and allow them to fit the bigger '07+ inner cam bearings. Then you can do the entire conversion using any '07+ cam (OEM or aftermarket), the '07+ cam plate/sprockets/chains/tensioners & oil pump... But that won't allow for you to use your OEM pre-'07 cam..
In my case, I just went with a set of Andrews conversion cams with the '07+ cam plate/parts. I'm still in the process of dialing in the tune ...
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Seasoned HDF Member
Joined: Mar 2010
Posts: 19,982
Likes: 6,110
From: Florida
Maybe I'm missing something, but why would you want to keep the stock cams, when you could upgrade for the same money? A torque cam will put a smile on your face when you let out the clutch.
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Road Captain
Joined: Jun 2013
Posts: 671
Likes: 168
From: Ontario, Canada
I've never heard of a conversion cam with the stock profile but I believe S&S had a gear cam that matched the stock profile. It used your existing pump and plate though.
Based on your previous post stating the mileage on your bike I personally don't see any advantage to converting to the 07 plate and pump. A set of Cyco shoes or replacement OE tensioners with a set of new inner and outer bearings will go at least another 10 years, maybe more. If you have your heart set on upgrading the oil pump then a Drag Specialties/Daytona high volume pump is an inexpensive option that works really well on your stock plate.
Based on your previous post stating the mileage on your bike I personally don't see any advantage to converting to the 07 plate and pump. A set of Cyco shoes or replacement OE tensioners with a set of new inner and outer bearings will go at least another 10 years, maybe more. If you have your heart set on upgrading the oil pump then a Drag Specialties/Daytona high volume pump is an inexpensive option that works really well on your stock plate.