Big bore or cams first?
To help out with the cam selection, call the tech rep at Andrews and tell him what you have and what you are looking for, i.e. mid-range torque, etc. He will identify which of their products will provide the results. The same can probably be said for other cam manufacturers. The only disappointment I had in my discussions was with the local HD tech who picked up a catalog and in a not so convincing weay, said, "Here's the one I think you need."
Cruiser
Joined: Feb 2009
Posts: 134
Likes: 0
From: Wisconsin
Yes there is and yes there is!
Without getting into whole bunch of technical detail on varieties and reasons. The cam you pick will need to compliment your Cu Inches and riding style "power band " requirements.
I installed a andrews 21 (mild) cam for more low and mid range torque for touring. Plus, it was a install and ride combination. (No carb/exhaust work needed) Others will go for cams that have mid range to high end torque for more "high velocity" sport riding.
To respond to your earlier question on upgrading to a bigger bore. My mechanic said the 21 cam will work great with a 95/97" motor. However, he mentioned that carburetor and exhaust flow upgrades would be recommended.
If you are curious on Andrews cams, go to their site. There you can compare with a stock cam lift and duration specs with Andrews
Good Luck
Without getting into whole bunch of technical detail on varieties and reasons. The cam you pick will need to compliment your Cu Inches and riding style "power band " requirements.
I installed a andrews 21 (mild) cam for more low and mid range torque for touring. Plus, it was a install and ride combination. (No carb/exhaust work needed) Others will go for cams that have mid range to high end torque for more "high velocity" sport riding.
To respond to your earlier question on upgrading to a bigger bore. My mechanic said the 21 cam will work great with a 95/97" motor. However, he mentioned that carburetor and exhaust flow upgrades would be recommended.
If you are curious on Andrews cams, go to their site. There you can compare with a stock cam lift and duration specs with Andrews
Good Luck
Yes, they are owner serviceable. The cams themselves don't press in, but the inner cam bearings do. Easy job with the right tools. Consider the Woods Tw-222 or Tw-555 cams.
Seasoned HDF Member
Joined: Jul 2007
Posts: 6,336
Likes: 67
From: SW Minnesota
Here's a couple of links that apply exactly to what you want to accomplish on a TC88. The cam is the Andrews 21.
http://www.americanrider.com/output.cfm?id=1205749
http://www.americanrider.com/output.cfm?id=1054045
http://www.americanrider.com/output.cfm?id=1054261
http://www.americanrider.com/output.cfm?id=2138743
I installed the Andrew's 21 gear cams on my '06, without any other major mods, and could not believe the difference. Note: An '06 had very restrictive EPA cams, so my noticeable gains might be greater than you would notice. If and when I need a top end job, I will convert to the 95", or maybe one of the others from another vender, such as FuelMoto.
http://www.americanrider.com/output.cfm?id=1205749
http://www.americanrider.com/output.cfm?id=1054045
http://www.americanrider.com/output.cfm?id=1054261
http://www.americanrider.com/output.cfm?id=2138743
I installed the Andrew's 21 gear cams on my '06, without any other major mods, and could not believe the difference. Note: An '06 had very restrictive EPA cams, so my noticeable gains might be greater than you would notice. If and when I need a top end job, I will convert to the 95", or maybe one of the others from another vender, such as FuelMoto.
Cruiser
Joined: Feb 2009
Posts: 134
Likes: 0
From: Wisconsin
Here's a couple of links that apply exactly to what you want to accomplish on a TC88. The cam is the Andrews 21.
http://www.americanrider.com/output.cfm?id=1205749
http://www.americanrider.com/output.cfm?id=1054045
http://www.americanrider.com/output.cfm?id=1054261
http://www.americanrider.com/output.cfm?id=2138743
I installed the Andrew's 21 gear cams on my '06, without any other major mods, and could not believe the difference. Note: An '06 had very restrictive EPA cams, so my noticeable gains might be greater than you would notice. If and when I need a top end job, I will convert to the 95", or maybe one of the others from another vender, such as FuelMoto.
http://www.americanrider.com/output.cfm?id=1205749
http://www.americanrider.com/output.cfm?id=1054045
http://www.americanrider.com/output.cfm?id=1054261
http://www.americanrider.com/output.cfm?id=2138743
I installed the Andrew's 21 gear cams on my '06, without any other major mods, and could not believe the difference. Note: An '06 had very restrictive EPA cams, so my noticeable gains might be greater than you would notice. If and when I need a top end job, I will convert to the 95", or maybe one of the others from another vender, such as FuelMoto.
Seasoned HDF Member
Joined: Nov 2010
Posts: 17,548
Likes: 7,197
From: Oxford, Nc
I'm running the package you're aiming to get too eventually. I've got a 95" Big Bore Stage II from the Factory. It's got 118,000 miles on it and still is my daily rider to work and back, so reliability and longevity are obviously there.
At 81,000 mile I replaced the S/E 203 cams with Andrews 26 Gear Drives and the bike is a rocket ship for a touring mount. Very willing, easy revving and 46 mpg to boot. 85 HP/95 ft.lbs. TQ, ( About 30% more than you've got now. Or about the same power as a 110" Stage I.)
If you stay at 88" go with Andrews 21. If 95", put the Andrews 26 in now, the Big Bore when you can which is what the 26's are designed for. ( Higher compression.)
If you can't tell, I'm loving this set up I've got over every other motor I've ever run.
Ask or PM if you've got questions. Enjoy your bike!
At 81,000 mile I replaced the S/E 203 cams with Andrews 26 Gear Drives and the bike is a rocket ship for a touring mount. Very willing, easy revving and 46 mpg to boot. 85 HP/95 ft.lbs. TQ, ( About 30% more than you've got now. Or about the same power as a 110" Stage I.)
If you stay at 88" go with Andrews 21. If 95", put the Andrews 26 in now, the Big Bore when you can which is what the 26's are designed for. ( Higher compression.)
If you can't tell, I'm loving this set up I've got over every other motor I've ever run.
Ask or PM if you've got questions. Enjoy your bike!
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Stellar HDF Member
Joined: Aug 2012
Posts: 2,664
Likes: 184
From: Indiana, USA
We are talking about an 88" motor here and I see several responses for cams in 95" and larger bikes. Also we have broached the subject of gear drive cams. Has anyone priced cam purchase plus installation for stock earlt Twin Cam Vs. Cam purchase plus installtion including oil pump and tensioner upgrade for later model Twin Cam, Vs cam purchase and gear drive installation.
As I said earlier, this bike just had the cam chest serviced with new tensioners, it is good for several thousand more miles, I woulod invest in the big bore now and later enhance the big bore with the cam upgrade. If you pick a cam package now suited for 88" you may want to revisit the cams if you ever go big bore.
As I said earlier, this bike just had the cam chest serviced with new tensioners, it is good for several thousand more miles, I woulod invest in the big bore now and later enhance the big bore with the cam upgrade. If you pick a cam package now suited for 88" you may want to revisit the cams if you ever go big bore.
Stellar HDF Member
Joined: Aug 2012
Posts: 2,664
Likes: 184
From: Indiana, USA
Yes, Choose 1 cam and you will have less torque than stock but more high RPM horsepower. Choose another and you will have great low RPM TQ and loose high RPM HP. Choose another and you will have a flat torque curve rolling into a flat HP curve. Be careful, big investment and you need to know what you want and what to look for.
On the other hand, Big Bore = a constant shift up in the torque curve with no guessing....
On the other hand, Big Bore = a constant shift up in the torque curve with no guessing....