HarleyTechTalk

Technical Forums => Twin Cam => Topic started by: itsafatboy on January 22, 2019, 01:23:02 PM

Title: TMAN 660 PS2 CAM VS WOODS 9BG
Post by: itsafatboy on January 22, 2019, 01:23:02 PM
Just wondering in a  116" AT 11.3 COMP , would the TMAN 660PS2 cam  be a good choice , currently run a TW9BG with a +2 key ,  in a softail 116" at 11.3 ,  zippers billet heads 2.0 int, 1.62ex, 53mm HPI , Thunder max 6.2gms injectors , DYNA boarzilla pipe , bike is pretty low geared , since it has belt drive 

wondering if it would be worth the change and would just be pretty much a wash

the 660ps looks like a shorter cam closes earlier but has higher lift, 

the open and close numbers do look close , especailly when you add the +2 key , prob not worth the $$ to do it   
Title: Re: TMAN 660 ps2 CAM VRS WOODS 9BG
Post by: kd on January 22, 2019, 01:51:27 PM
It's supposed to be a redesigned 660SM to slow the ramps down.  It is apparently quieter than the earlier version. I have the 660SM and don't find it noisy at all.  :nix:  I suspect in the very least it may be quieter than the Wood cam reputation. This does not address your question though. Just a simple observation on operating characteristics. 
Title: Re: TMAN 660 PS2 CAM VS WOODS 9BG
Post by: Sunny Jim on February 01, 2019, 06:40:16 AM
11.3:1 is a little too high for the 660. Have a look at the reaper 594.
Title: Re: TMAN 660 PS2 CAM VS WOODS 9BG
Post by: Ohio HD on February 01, 2019, 08:03:31 AM
I've run the 594's, they're really more mid and top cams. The S&S 625's have similar timing, and more lift, they pull down low better, but still on the top side. Running them now. Ran both at 11.30 static.
Title: Re: TMAN 660 PS2 CAM VS WOODS 9BG
Post by: Hillside Motorcycle on February 01, 2019, 08:56:05 AM
The 660 should have more, sooner.
Title: Re: TMAN 660 PS2 CAM VS WOODS 9BG
Post by: kd on February 01, 2019, 10:45:30 AM
My 660sm (the pre 660ps) is set a touch over 11:1 and is killer.  Call than and get it from the designer.
Title: Re: TMAN 660 PS2 CAM VS WOODS 9BG
Post by: itsafatboy on February 01, 2019, 07:12:19 PM
Yes all good cams , I suppose i'm just wondering if i'm going to see much diff over the TW9BG I have in there at +2 ,  and im betting no
Title: Re: TMAN 660 PS2 CAM VS WOODS 9BG
Post by: Hillside Motorcycle on February 04, 2019, 12:36:46 PM
More, sooner, would be it.