Engine Builders... need some input on cams - Road Glide Forums
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post #1 of 12 (permalink) Old 06-17-2016, 04:43 PM Thread Starter
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Engine Builders... need some input on cams

I must say that selecting cams is NOT my in my bag of tricks.... and I need some solid advice on selection.

Im a fairly aggressive rider... I like 3000 rpms and up as of right now and I think that is because I am in the powerband of the SE259E cams. I would like a bit more bottom end as it feels sluggish below 3000rpms.

I ride 2 up when my wife goes with me, but don't make this a factor as its only 10-20% of the time.

I have the 120ST crate motor from HD... its in the shop, torn down right now for oil consumption..rings, valve guide seals and scoring on the walls so far..... and figured since I'm into it, may as well upgrade the cams at this point and save some coin.

I don't want to do additional headwork right now ( maybe never ) and I would like to not have to change out my springs or do any clearancing if needed for said cams.

additional info... Power Vision tuner with Target Tune... 1074X Thunder Header and SE Chiseled extreme AC....

So... what's your advice? I have looked at a few in comparison... but seem to be confusing myself more, since my cam knowledge is not where it should be to make an educated decision on my own.

Thanks guys.. I do appreciate the input.....

2015 RGS 120ST | D&D Boss Boarzilla | 4.5" Topshop Ass | Soundz SS4.100 amp, HD-DSP ,(4) Carbon 65's and Iron 69.2's
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post #2 of 12 (permalink) Old 06-17-2016, 05:59 PM
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I would ask dragos or hillside for a low end cam my compression is 11 to 1 and i wanted to run a low end cam like a s&s 551 but the told me i had to much compression i ended up with a 585 cam the bike turns on at 2500 rpm and up i had 5 sets ofs&s cams but had to buy the 585 cams i am thinking of running the s&s 640 cams but for now stay with the 585
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post #3 of 12 (permalink) Old 06-17-2016, 06:02 PM
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Not a builder but heard of some great results with 120's running woods TW9B-6


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post #4 of 12 (permalink) Old 06-17-2016, 06:28 PM Thread Starter
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Originally Posted by Nordic Berserker View Post
Not a builder but heard of some great results with 120's running woods TW9B-6
I have heard that as well...thanks. I think that is used in FM'S 124 kit...

2015 RGS 120ST | D&D Boss Boarzilla | 4.5" Topshop Ass | Soundz SS4.100 amp, HD-DSP ,(4) Carbon 65's and Iron 69.2's
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post #5 of 12 (permalink) Old 06-17-2016, 06:39 PM
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Originally Posted by Spazz View Post
I have heard that as well...thanks. I think that is used in FM'S 124 kit...
go on the woods website & click on dyno runs, you'll see a few sheets for each engine size builds with different cams. Mine is up there as well under 107 builds.

Here's one with sheet with that cam & some head work

http://www.woodcarbs.com/images/tc120efitw9b-6-1.jpg
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post #6 of 12 (permalink) Old 06-18-2016, 10:11 AM Thread Starter
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Quote:
Originally Posted by Nordic Berserker View Post
go on the woods website & click on dyno runs, you'll see a few sheets for each engine size builds with different cams. Mine is up there as well under 107 builds.

Here's one with sheet with that cam & some head work

http://www.woodcarbs.com/images/tc120efitw9b-6-1.jpg
Yeah... thanks.... I have been eye-balling this one... just not sure yet....

2015 RGS 120ST | D&D Boss Boarzilla | 4.5" Topshop Ass | Soundz SS4.100 amp, HD-DSP ,(4) Carbon 65's and Iron 69.2's
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post #7 of 12 (permalink) Old 06-18-2016, 11:24 AM
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Quote:
Originally Posted by Spazz View Post
Yeah... thanks.... I have been eye-balling this one... just not sure yet....
If you find a woods grind that you like, go to T-man performance. He pretty well copies Woods but has a less aggressive grind on the back side which softens the slamming of the valves and has a lot quieter valve train noise because of it.
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post #8 of 12 (permalink) Old 06-18-2016, 01:21 PM Thread Starter
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Originally Posted by Smarty View Post
If you find a woods grind that you like, go to T-man performance. He pretty well copies Woods but has a less aggressive grind on the back side which softens the slamming of the valves and has a lot quieter valve train noise because of it.
Very good advice. Thanks. They are still specing things out on the damage... once I find out the details ( if cams are warranted) I may be able to swing a deal of offsetting the cost.

Thanks again

2015 RGS 120ST | D&D Boss Boarzilla | 4.5" Topshop Ass | Soundz SS4.100 amp, HD-DSP ,(4) Carbon 65's and Iron 69.2's
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post #9 of 12 (permalink) Old 06-18-2016, 02:42 PM
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'Not a Builder, not now anyway...

'Have the T-Man 625s in "The Short Bus" they come in much earlier than the 259s, 120 ftlbs at 2200, start to fall off at 5900, quiet, pulls very well throughout the entire RPM range, 10.4 static... TR recommends 10.2-10.6

A great all around bagger performance cam, I will use nothing else in future Builds...

'Giving 120s & 124s nightmares... PRICELESS
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'09 SERG 117/DD7 "THE SHORT BUS"
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post #10 of 12 (permalink) Old 06-18-2016, 02:56 PM Thread Starter
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Originally Posted by HeatWave View Post
'Not a Builder, not now anyway...

'Have the T-Man 625s in "The Short Bus" they come in much earlier than the 259s, 120 ftlbs at 2200, start to fall off at 5900, quiet, pulls very well throughout the entire RPM range, 10.4 static... TR recommends 10.2-10.6

A great all around bagger performance cam, I will use nothing else in future Builds...

'Giving 120s & 124s nightmares... PRICELESS
Great details! Thanks a lot! that's what I like to hear.....

This is on the site:

T-Man 625
This cam is a good fit for 74” to 88” motors with 10.2-10.8 compression. It will deliver a smooth torque and power curve from 2400 rpm and still make power past 6000 rpm

So... how do I know this is a good fit for my 120? I see the SHORT BUS is a 117.... so this might be a stupid question.... but still need to ask

2015 RGS 120ST | D&D Boss Boarzilla | 4.5" Topshop Ass | Soundz SS4.100 amp, HD-DSP ,(4) Carbon 65's and Iron 69.2's
RENO BAGGER AUDIO

Last edited by Spazz; 06-18-2016 at 03:00 PM.
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