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Competition Marine Designs, Inc.
Ph: (386)330-2420
andybrownprops
@gmail.com


Features
Bushed Drum Housing

Steel Rod with Needle Bearing and Top Bushing

Dynamically balanced Drum Valve

Large cooling capacity for Sport hydro's & Vee's

5 Transfers with Piston Ports

Incorporates Sonic Flow exhaust
porting Developed by Andy Brown
Specifications
Bore: 21.2mm
Stroke: 21.1mm
Rod Length: 39mm
Carburator: 12mm
Displacement: 7.5cc
RPM: 26,000 - 30,000
Horse Power: 4.2 - 5.0
Current Records
NAMBA 45 Mono SAW - 72.32 mph.

IMPBA 45 Hydro SAW - 109.86 mph.

IMPBA 45 Hydro 1/3 mi. Oval-18.59 sec.

2002 NAVIGA World Champion
Recommendations
Use Brown 45 parabolic pipe set 9.5" (center of cylinder to weld).

Head Clearance - .008"

Nitro - 60%
Parts & Price List
CLICK HERE to open our price list for the MAC 45 engine, and components.

To view our price list, you must have Adobe Acrobat PDF Reader installed on your computer system. If you do not have it installed, CLICK HERE to download it for FREE.

Mac 21 | Mac 45 | Mac 67 | Mac 84

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