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78mm vs 90 mm intake

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Old Mar 2, 2006 | 03:21 PM
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Default 78mm vs 90 mm intake

just wondering what the power differences are between the two, i have a 408 and was just wanting to know if anyone has tried it?? just want to see what my options are before shelling out all my cash i have hidden from my wife that she doesnt know about

thanks
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Old Mar 2, 2006 | 04:07 PM
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i wouldn't go any smaller than a 90mm intake on a stroker motor
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Old Mar 2, 2006 | 05:30 PM
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I had a 78MM setup on my 408, and switched to a ported 90MM intake. I don't have any dyno sheets to back up any gains, but I can sure as hell tell you that you can feel a HUGE torque difference down low just putting around town.

DO IT.
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Old Mar 2, 2006 | 05:38 PM
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78 here very nice for stock cubes, but you are definatley in the 90 mm range. Dig around, I got mine for 512.00 shipped with new seals, after a little price matching, so figure the 90 could be had for like 560.00
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Old Mar 2, 2006 | 11:16 PM
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90mm all the way. i think the 78mm is a huge waste of $$$.
I have a 90mm on my "bolt ons only" car.
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Old Mar 3, 2006 | 06:56 AM
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Originally Posted by daryl2cb@yahoo.com
78 here very nice for stock cubes, but you are definatley in the 90 mm range. Dig around, I got mine for 512.00 shipped with new seals, after a little price matching, so figure the 90 could be had for like 560.00
Where did you find one for that price new?
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