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107" what cam?

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Old Mar 15, 2012 | 06:57 PM
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Default 107" what cam?

What's the best cam setup to use with a 107" big bore kit? looking for mid range pull
 
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Old Mar 16, 2012 | 01:53 AM
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I used the wood tw555 got 112 hp and 123 tq..100lbs by 2800 rpm..
 
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Old Mar 16, 2012 | 02:09 AM
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I've heard the woods 555 and 777 are pretty good in the mid range. I've got the tw8-6 cams in my 107 but there power comes in in the middle to upper rpm range.
 
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Old Mar 16, 2012 | 05:38 AM
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Originally Posted by yamaracer18
What's the best cam setup to use with a 107" big bore kit? looking for mid range pull
Would this cam be used, with the stock untouched cylinder heads?
Scott
 
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Old Mar 16, 2012 | 06:49 AM
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i would hope he`s going to do some headwork,we`ve used everything from S&S .551`s to .625`s. woods 6H or S&S 585`s would be good choices
 
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Old Mar 16, 2012 | 09:25 AM
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will be doing some sort of head work as well to go along with the setup! maybe even a 55tb?
 
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Old Mar 16, 2012 | 01:04 PM
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I installed the TW8 cams in my bike this winter at 10.8 cr. Ported heads with ACR's and a 50mm SE throttle body. It's got plenty right off idle, and a big mid range. ( I also changed out to a 30/68 final drive to fix the too-tall gearing. )
 
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Old Mar 16, 2012 | 04:58 PM
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Yep.
The 8 will come off good down low, and have a rippin' mid range, and will also deliver great hp.
107"s and 110"ers can push at/north of 125 hp, and about the same torque, set up correctly.
Scott
 
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Old Mar 16, 2012 | 05:48 PM
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Sounds like the 8 might be what I want I was thinking the 777 originally how much of a difference is there between the 2?
 
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Old Mar 17, 2012 | 02:34 AM
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Not being an expert on cams but just by looking at the numbers the tw8-6 has a little more lift and duration than the 777. It's an all around higher performance cam it does have some valve train noise but its not bad to me. It comes off good down low and then when the rpms come up hold on cause it pulls hard. With my 107 build from fuelmoto I made 127hp and 126tq but with a good 2 into 1 exhaust I probably could have made more.
 
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