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High Compression Evo

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Old Jun 4, 2014 | 08:53 PM
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knottyboy
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Default High Compression Evo

I have a 1998 Softail 1340 Evo, Torque cones, 2 into 1 open Exhaust, 650 lift Beehive Valve Springs, New valve Job, Performance Built C.V Carb 11.1 Comp Pistons, I am Running Airplane Gas with lube, I am 6 foot 6 350 pounds i need a good Cam for this, Its a poker run and ride everyday Bike, what Cam and do i need the Torque Cones.
 
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Old Jun 4, 2014 | 09:08 PM
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Oh, that is screamin Woods W9 with that compression, you are going to need a cam with late intake closing and alot of duration. W9 with that compression and some head flow will nail 95 hp, maybe touch 100 hp and a rocket in the mid to upper rpm"s
 
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Old Jun 4, 2014 | 09:16 PM
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OK ty and what was i thinking with the 11.1 pistons geez But it sounds great the way it is but i know it can run alot better.
 
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Old Jun 4, 2014 | 09:18 PM
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I forgot it has a Hypercharger on it as well, Dont be fooled it went from Black Exhaust to Frost white Exhaust with putting the hypercharger on, i rejetted the carb all is good now.
 
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Old Jun 5, 2014 | 01:48 PM
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Originally Posted by 1997bagger
Oh, that is screamin Woods W9 with that compression, you are going to need a cam with late intake closing and alot of duration. W9 with that compression and some head flow will nail 95 hp, maybe touch 100 hp and a rocket in the mid to upper rpm"s
I say the same thing wood w-9 but it needs a real 11:1 compression ratio
putting 11:1 pistons in it is not enough you need to know bore cc's of pistons and heads deck height if you run a w-9 on anything less it will be soft out of the hole

example bore 3.498, .045 gasket, 19cc 11:1 pistons, 0 deck, 83cc heads,=10.39:1 that's not enough comp. for a w-9 you really need to know all these numbers before putting such a large cam in it you will be disappointed if you over cam that motor

here's a video of my engine with w-9 10.97:1 comp
 
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