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Twin Cam 88" build-Cam questions

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  #11  
Old 01-23-2017, 06:15 AM
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Andrews 21, or an S&S .509, are the 2 we install here for very good power in plug/play only set-ups, in 88" engines.

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  #12  
Old 01-23-2017, 03:26 PM
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Early in this thread it was stated that the OP would need conversion cams. I looked at the S&S website and it appears the cam plate he has uses the early style (pre 2007) cams but has the updated hydraulic tensioner set up.


Easy way to find out. If you see roller or ball bearings pressed in the cam plate, early style cams.


Just an observation but I might be stating the obvious. Should open up the choice of cams.


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  #13  
Old 01-23-2017, 07:48 PM
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Originally Posted by djl
S&S 509 is probably the best bolt in choice for a stock or Stage ! TC88. Valve springs are limited to .510" lift by the MoCo but .525" is commonly done.
Didn't the 2006 motors have the new heads that allowed lift up to .570?
 
  #14  
Old 01-24-2017, 06:01 AM
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Originally Posted by Jay Guild
Didn't the 2006 motors have the new heads that allowed lift up to .570?
I would think a cam with that much lift new springs/head-work would be in order rather than rolling the dice. I just installed an Andrews 21 in my '06 with great results
 
  #15  
Old 01-24-2017, 09:22 AM
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2006 look at andrews 48 n i saw some nice result with 88
 
  #16  
Old 01-24-2017, 10:01 AM
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Originally Posted by Jay Guild
Didn't the 2006 motors have the new heads that allowed lift up to .570?
I missed the model year; good catch. Actually the introduction of the beehive springs in the '05 model year allowed the higher lift. Of course this opens up other cam alternatives and the S&S 551 should be considered.

The OP also has the benefit of the improved heads that were introduced in the '06 model year; no need for springs and head work for a cam only upgrade.
 
  #17  
Old 01-24-2017, 10:09 AM
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Originally Posted by Garrman
Early in this thread it was stated that the OP would need conversion cams. I looked at the S&S website and it appears the cam plate he has uses the early style (pre 2007) cams but has the updated hydraulic tensioner set up. Easy way to find out. If you see roller or ball bearings pressed in the cam plate, early style cams. Just an observation but I might be stating the obvious. Should open up the choice of cams.
Garrman
From the OP.

"do i order a cam that is for a 96" TC motor since i upgraded the cam plate to the 07+ oil pump and plate?
 
  #18  
Old 01-24-2017, 11:27 AM
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The original post is a bit ambiguous. The OP states he replaced the stock cam plate and oil pump with an S&S unit. While he does mention 07+, I looked on the S&S site and only saw 99-06 cam plates that retained the outer cam bearings but used the later style tensioners.


It is possible I am mistaken but it appears the S&S TC3 cam plate for 99-06 still uses pressed in outer bearings.


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  #19  
Old 01-24-2017, 11:31 AM
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I used the Andrews 48H in my 05 Fatboy when I did the screaming Eagle cam plate update....I love the power it puts out now. I was looking for upping the torque and have not been disappointed. I used a PC USB 3 bought and mapped from Fuel Moto and big runs like an ape!!
 
  #20  
Old 01-24-2017, 02:27 PM
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Originally Posted by Garrman
The original post is a bit ambiguous. The OP states he replaced the stock cam plate and oil pump with an S&S unit. While he does mention 07+, I looked on the S&S site and only saw 99-06 cam plates that retained the outer cam bearings but used the later style tensioners. It is possible I am mistaken but it appears the S&S TC3 cam plate for 99-06 still uses pressed in outer bearings. Garrman
I agree, the OP is ambiguous. I read it again and it appears that the OP may have already installed an S&S cam plate but not a cam. Why anyone would replace the cam plate and not drop in a bolt in cam at that time is beyond me but stranger things happen every day. If in fact the OP installed the new cam plate but not a cam that would indicate that the OEM cams are still in place. If that is the case, he would not require conversion cams as you have suggested in a previous post. But maybe not, I don't know.

The OP should clarify the OP if he wants to get accurate advice on cam selection as some cams are not available as conversion cams.
 


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