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IronButt
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Discussion Starter #1
Does anyone know where I can get the specs on stock TC 88 cams? I've been reading through the threads about 95" builds, been in touch with a couple of the answer guys on here, and got some advice. I was originally planning to go with the "winter special" Stage 2 big bore, but told the dealer I wanted Andrews 26G cams instead of the SE 203's in the kit. Stealer told me he looked up the specs on 26G and it's within .001" of matching the stock cam. I'm finding that a little hard to believe, so I wanted to compare the numbers.

I've had a few discussions with him about this deal, and each time I'm a little more leery of having them work my bike up. I'm leaning toward doing nothing at all, and come spring, cya!:xhere:

'04 FLHTCUI
Ride 2 up about 50%
Bushtec trailer

Lookin' for max torque!
 

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6,413 Posts
Here's a site that has them all listed together.

http://www.nightrider.com/biketech/hdcam_twincam_bydur_ql.htm

I've run the 203's initially on my 95" '99 FLHT and then went to the 26G's when I went gear drive. They are very similiar but the 26G's perform a little better, at least by my seat of the pants estimations.

If I was staying chain drive, 203's or 26's would be fine though.
 

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IronButt
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55 Posts
Discussion Starter #4
Chain drive's gotta go! But I think I'm gonna do it myself next winter. I didn't get a warm fuzzy when he told me they'd only done one gear change-over.
 

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Highly Seasoned Rider!
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The one that I found that's very close to the stock specification is the 21G. It's only about 4 degrees different here and there.
 

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both the 21 or 26 Andrews have more overlap than stock cams. the stock cams have like zero overlap vs 20 some dergrees in the andrews.
 

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JMynes said:
Does anyone know where I can get the specs on stock TC 88 cams? I've been reading through the threads about 95" builds, been in touch with a couple of the answer guys on here, and got some advice. I was originally planning to go with the "winter special" Stage 2 big bore, but told the dealer I wanted Andrews 26G cams instead of the SE 203's in the kit. Stealer told me he looked up the specs on 26G and it's within .001" of matching the stock cam. I'm finding that a little hard to believe, so I wanted to compare the numbers.

I've had a few discussions with him about this deal, and each time I'm a little more leery of having them work my bike up. I'm leaning toward doing nothing at all, and come spring, cya!:xhere:

'04 FLHTCUI
Ride 2 up about 50%
Bushtec trailer

Lookin' for max torque!
Here is the essential stock cam data............

Stock (A) 02/38 216 0.473 0.072
Carb....... 36/04 220 0.473 0.110

Stock (B) 02/34 216 0.473 0.087
Injectors 36/04 220 0.473 0.110

6* of overlap and the efi cam intake closing is 4* earlier.


Here's the TW21............

TW21 10/30 220 0.498 0.134
.........40/08 228 0.498 0.121

Real early intake closing, 18* overlap, more lift than stock.


Here's the TW26.........

TW26 11/35 226 0.490 0.138
......... 41/09 230 0.490 0.112

Moderately early intake closing, 20* of overlap, longer duration, slightly less lift than the 21.


Here's the TW37............

TW37 18/38 236 0.510 0.174
..........46/14 240 0.510 0.148

Intake closing at 38* for better broad powerband across the rpm range, 32* of overlap, longer durations, better lift. This cam will have the low end torque and the upper end will pull right to the rev limiter. Probably the best all around cam in their line-up.

Hope this helps!
 

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IronButt
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Discussion Starter #8
Ed Y said:
That's a great resource! Makes it easy to compare the numbers. Now If I only knew what they all meant.....

Actually, there was a thread on here that explained it all pretty well, but even after reading it twice I still find the concepts less than intuitive.

The answer to my original question is there, however. The two cams are far from identical.

Thanks everybody!:bowdwn:
 
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