Cam Upgrade on TC96
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Intermediate
Joined: May 2007
Posts: 47
Likes: 0
Cam Upgrade on TC96
I want to replace my stock cams in my 2007 RKC with a mid-range cam. I'm looking at the Andrews TW-26H - I do a lot of solo riding, but also 2 up about 30% of the time on country road rides and longer tours. On the highway, cruising is usually 70-80mph, in 6th gear that's just pushing up to 3000rpm. I can't imagine needing high end torque as I don't ride that fast, who can afford the ticlets 
I see lots of comments on using the Andrews 26, also the 37 and 54H. I do not want to do anything except have the cams bolted in, remap my Thundermax Autotune, and go - no other engine work or expense, poor man's upgrade. And, I'm leaning heavily towards Andrews product.
Any help in making a definitive choice would be greatly appreciated. Thanks!
Also, just getting a blog up and running - infant stages.
http://www.harleyculture.com
I see lots of comments on using the Andrews 26, also the 37 and 54H. I do not want to do anything except have the cams bolted in, remap my Thundermax Autotune, and go - no other engine work or expense, poor man's upgrade. And, I'm leaning heavily towards Andrews product.Any help in making a definitive choice would be greatly appreciated. Thanks!
Also, just getting a blog up and running - infant stages.
http://www.harleyculture.com
Last edited by edgerider; Jun 30, 2009 at 02:03 PM. Reason: checking email
Seasoned HDF Member
Joined: Feb 2007
Posts: 10,602
Likes: 721
From: Bellevue, NE
I think you'd be very happy with the 26H cams, I know I am. Matrix and I were both having some cold idle issues and recently switched base maps to 525. Seems to have done the trick, running great!
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
It's a trick finding a cam set that will retain low-end torque without increasing CR, if that's important to you. The HD SE255's will give an impressive performance boost from 2000-5000 RPM's, especially 2500-4500, without losing anything in the low-end. Peak HP is not greatly increased, perhaps 5%, but if you aren't at the redline often it doesn't matter. I did a write-up on the install and impressions here.
Road Warrior
Joined: Jan 2006
Posts: 1,808
Likes: 0
From: Waynesville, NC
My tuner is saying to go with the Andrews 50. Says that the 26 is not enough for the weight of the Touring class Harley. I went with the HQ - 0034 and I am not very happy with the outcome of it.
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
What most want and need in a heavy touring rig with tall gearing is low-end and midrange torque, and most aftermarket cams will hurt the low-end while increasing midrange and top-end performance, that is unless CR is increased.
If you want a boost without losing the low-end and retaining the stock CR you are very limited in your choices, IMO. As I mentioned before I believe the SE255's are the best cams on the market for this application where 2000-4500 RPM is the most important operating range in an otherwise stock TC96 engine with a tuner, free-flowing AC, and slip-ons.
Road Warrior
Joined: Jan 2006
Posts: 1,808
Likes: 0
From: Waynesville, NC
I don't know what your tuner means by "not enough," but looking at the specs on the 50H suggests to me that it is less suitable in a touring bike than the 26H or 21H. With its 48° intake close it will certainly provide less low-end than the 26H.
What most want and need in a heavy touring rig with tall gearing is low-end and midrange torque, and most aftermarket cams will hurt the low-end while increasing midrange and top-end performance, that is unless CR is increased.
If you want a boost without losing the low-end and retaining the stock CR you are very limited in your choices, IMO. As I mentioned before I believe the SE255's are the best cams on the market for this application where 2000-4500 RPM is the most important operating range in an otherwise stock TC96 engine with a tuner, free-flowing AC, and slip-ons.
What most want and need in a heavy touring rig with tall gearing is low-end and midrange torque, and most aftermarket cams will hurt the low-end while increasing midrange and top-end performance, that is unless CR is increased.
If you want a boost without losing the low-end and retaining the stock CR you are very limited in your choices, IMO. As I mentioned before I believe the SE255's are the best cams on the market for this application where 2000-4500 RPM is the most important operating range in an otherwise stock TC96 engine with a tuner, free-flowing AC, and slip-ons.
The biggest power gain I have seen is from an air cleaner change, from HD stage 1 to a SPP w/crank vents. I think the gain was 12 hp with Dyno to prove it.
Please keep in mind, I am not trying to argue with anyone here, I am just sharing what I have done and what I have seen from it.
Tourer
Joined: Mar 2008
Posts: 435
Likes: 2
From: Alberta, Canada
The duals vrs 2-into-1 is a BS myth as far as I am concerned.
The biggest power gain I have seen is from an air cleaner change, from HD stage 1 to a SPP w/crank vents. I think the gain was 12 hp with Dyno to prove it.
Please keep in mind, I am not trying to argue with anyone here, I am just sharing what I have done and what I have seen from it.
The biggest power gain I have seen is from an air cleaner change, from HD stage 1 to a SPP w/crank vents. I think the gain was 12 hp with Dyno to prove it.
Please keep in mind, I am not trying to argue with anyone here, I am just sharing what I have done and what I have seen from it.
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Grand HDF Member
Joined: Sep 2007
Posts: 4,122
Likes: 44
From: Boise Idaho
I used a HQ500 cam with a Big Sucker 2 and a FatCat with quiet baffle in my 07 96" RC and it made 90HP and 93 Torq.
It is in the shop right now because the dyno guy got it a little lean on the bottom end which was screwing up the drivability in town but man it ripes on the highway.
It is in the shop right now because the dyno guy got it a little lean on the bottom end which was screwing up the drivability in town but man it ripes on the highway.
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Road Master
Joined: Mar 2008
Posts: 1,209
Likes: 5
From: Michigan
I have to agree that the 255's are a great cam for the 96 if you are looking for low-mid range grunt. I followed Iclicks advice and got a used set. I spent $400 on cams, bearing puller/installer, cam install kit, adjustable pushrods and SE HP clutch spring. I also spent some coin on a dyno tune to complete the set up. The maps from fuel moto just were not working for me. To me this has been the best bang for my buck.
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
I have to agree that the 255's are a great cam for the 96 if you are looking for low-mid range grunt. I followed Iclicks advice and got a used set. I spent $400 on cams, bearing puller/installer, cam install kit, adjustable pushrods and SE HP clutch spring. I also spent some coin on a dyno tune to complete the set up. The maps from fuel moto just were not working for me. To me this has been the best bang for my buck.