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New Fast 78mm and 90mm?

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Old 12-13-2003, 07:52 AM
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Default New Fast 78mm and 90mm?

My current setup has just bolt on's but come Spring I'm having a RMS 232 cam installed and later in the year a set of s2 heads. I have the LSX on order already with the 78mm opening. My question is would I benefit at all by going to a 90mm opening and TB at all? Or is the 78mm opening big enough. I'm wanting to be pushing between 540-570hp from my setup. I have a Jantzer TB right now.
Old 12-16-2003, 07:36 PM
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Hard to answer till a few cars get out there with this combo.
Old 12-19-2003, 10:33 PM
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FAST only recommends the 90mm version for stroker motors. I'm sure some guys will try this on their modified stock displacement motor. It will be a little while before we get feedback on how this works for them.

Tom
Old 12-19-2003, 11:28 PM
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I dont think you will see much of a gain on a stock displacement motor, once you go ^ CI you will see a benefit from it. Keep with the 78mm for now. Good Luck

Wes




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