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Irvine 53 rpms

Old 03-17-2004, 10:56 PM
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Default Irvine 53 rpms

What rpms are you guys getting with the Irvine 53 with a 12.25x3.75 prop?
I am using 15% Omega and getting around 12600. Sounds pretty close.
Old 03-18-2004, 08:58 AM
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Default RE: Irvine 53 rpms

Mine's running 12800 with 20% pro pattern, stock muffler with the baffle removed. I tried one of the Tower mufflers that people say are supposed to add some RPM, but didn't notice any difference at all, except it was louder.
Old 03-18-2004, 08:11 PM
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Default RE: Irvine 53 rpms

I just bench ran a new 53 After one tank I seam to pick up around 1k using the APC 12.25X375 13,500 with a Max header & Hatori tune pipe. With nice transition to wide open. APC 11X6 15k with great transition. Bolly 11.5X5X5 14,500. also with great pick up. Zinger 12X4 13K with good pick up Zinger 11X10 Dog will not use (pick up-spool) bad. Power master 15% 20 % oil. All In all looking to put this guy on my new X-treme 540T profile. And have some fun.

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