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103 or107

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Old Oct 31, 2009 | 09:42 PM
  #1  
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jeff57
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Default 103 or107

Hi, I am sure people ask this all the time but i have an 08 fatbob and i've put rinehart crossbacks and an s&s single bore dual intake and a cobra fuel management system on it. I want more go...I was wondering if you guys would advise a 103 or 107 upgrade, I was going to go with mid to lower 10/1 compression, baisley heads ( the mid range head work). I just like to ride aggressively on these eastern oregon roads..rarely have it over 5 grand but I like plently of torque, I imagine i need to upgrade to a better fuel management system, will i feel that extra 4 cubes in the seat of my pants?
thanks jeff
 
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Old Nov 1, 2009 | 05:35 AM
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You MAY feel the 4 extra, but it would not be something that jumps up and grabs you, but that combination (107") doesn't cost any more than a 103".
A Wood 7H, cylinders bored, and the heads you describe(or ours), and you'll have a very snappy set-up.
Scott
 
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Old Nov 1, 2009 | 10:32 AM
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As Scott already mentioned, it's about the same cost. I've been happy with my Baisley heads for the past year, and would recommend them.
 
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Old Nov 1, 2009 | 11:10 AM
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Dave from JD,s cycleworks has them in stock and ready to go.
also there is a dyno sheet for a 96 cubic inch build with baisley heads and t-man 525 cam i posted yesterday. 9.4 compression and it was 104 hp/tq. stock everything except heads cam and exhaust.
now back on topic yes basley heads nice mild cam and a good tuning device such as aTTS will do wonders. give Dave a call as he can help you out and he more then will have Map for the build also. 1-610-297-0321
 
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Old Nov 1, 2009 | 11:45 AM
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The 07/08's are geared tall 32/66, after I changed my pulley to a 30T it pulls a lot better.
 
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