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





New Eagle SGX-2





Andy Brown releases new series of CNC machined props!
  • Record Breaking Knowledge, Experience and Engineering Expertise
  • Manufacturing utilizing the Latest Design Technology
  • Percision Balance from blade to blade
  • Built-to-Order Design Availability
  • Ready-to-Run at a fraction of the cost of the competition
  • Nitro, Electric, and Gas Propeller Sizes





AB 15N
New Billet AB15 Nitro pipe is designed for .12 & .15 engines and also works great on .18 RTR engines. This pipe is best suited for Hydros and Riggers. Only $39.95



AB 21STL
The AB21STL is long version of the AB21ST for use with the rear exhaust .21 engines.




AB 21RX Nitro
Nitro pipe is a great torque pipe for oval racing with .21 outriggers.




CMDi Motor Mount Systems
CMDi Motor Mount Systems now available in Small for the .21 - 45 engine size and Large for the .67- .90 engines. Small .21- .45 has 2" bolt spacing and are drilled and tapped for MAC, Picco, Novarossi & CMB .21- .45. Specify engine when ordering.


Large Motor Mount System .67- .90 has 3" bolt spacing. Clearanced for the the CMB 91 Zimmerman Valve and flywheels. Pre-drilled & tapped for Picco, MAC 67/84, CMB 67/80, CMB 90, & K-90. Specify engine when ordering.



New Large Rudder Assemblies
Two new CMDi large rudders assemblies have been added to our lineup, giving you three to choose from. Set backs now available are 1.125", 1.5" and 3.0".

The 1.125" unit has a 1.25" wide base. The 1.5" and 3.0" units have a wider 1.75" base for addition mounting stability.

These new steering systems are sold complete with rudder blade or as individual parts. They are fully symetrical and can be use on the left or right. Longer setbacks coming soon!



Large Rudder Assemblies
Large Rudder Assembly for Sport Gas Hydros, 1/8th Scale Hydros, Crackerbox, Jersey Speedskif, Cats and other hulls requiring short transom off set. Symmetrically centered design works on left or right. Comes standard with 6061- T6 single water pickup blade and shear pin. Dual water pickup, no water pickup and 7075-T6 blade options available.



CMDi Solid Billet Headers
New Headers from Andy Brown Performance. Solid billet headers are now available. They are available in 10 or 15 degrees.

.21 @ $26.50 .67 or .84 @ $32.50
.45 @ $29.50 .90 @ $34.00



CMDi Big Bore Pressure Fittings
CMDi Big Bore Pressure Fittings are now available. Made from 7075-T6 Aluminum with Stainless Steel nut. These fittings are light weight and strong and provide good pressure for any engine size.



CMDi Shaft Bushings
CMDi Shaft Bushings are back in stock. These Shaft Bushings are precision machined from solid billet. Available for 1/4" or 3/16" shafts.



CMDi Bullet Nosed Drive Dogs
3/16" x .365 Bullet Nosed Drive Dogs are now available from CMDi. These Drive Dogs are available in either Stainless Steel or 7075-T6 Aluminum.





AB 21 SS
The AB 21SS pipe is designed to achieve high rpm from .21 engines that use 180 degree headers, while at the same time producing good throttle response for racing. The header section of the AB 21SS pipe will telescope over standard Novarossi, Picco, CMB 180 degree headers. Many other pipes are too long or have too much volume to get maximum rpm from engines utilizing 180 headers. The AB 21SS pipe is available with standard muffler or with extra muffling.




AB 21 ST
The AB 21ST pipe is designed to achieve high rpm from .21 engines that use a 180 degree headers, while at the same time producing good throttle response for racing. Additionally, the AB 21ST will produce more torque in the mid range to top rpm for those who like to pull big props or have slightly more hull drag.

The header section of the AB 21ST pipe will telescope over standard Novarossi, Picco, CMB 180 degree headers. Many other pipes are too long or have too much volume to get maximum rpm from engines utilizing 180 headers. The AB 21ST pipe is available with standard muffler or with extra muffling.





AB 21 XT
The AB 21 XT pipe is designed for good broad range power for the MAC 21 engine. The AB 21 XT telescopes of the 14mm MAC tapered header. The AB 21 XT is a smaller diameter than the AB 21 FAT pipe yet will have nearly the same performance characteristics. The AB 21 XT pipe is available with standard muffler or with extra muffling.





AB 45 XTS
The AB 45 XTS is a short belly version of the AB 45 XT. This pipe is well suited for Picco, CMB, O.S.Max, and OPS 45 engines. The AB XTS will work on light SAW set-ups on the MAC 45 or when utilized with a special long header for the MAC 45. The AB 21 XTS pipe is available with standard muffler or with extra muffling.





New AB 45XT pipes
The new AB 45XT pipe has been developed to provide extra off the corner acceleration while maintaining top end rev out for peak speed. Compared to the Brown 45 parabolic pipe the same off the corner acceleration will be noticed while an increased top end will be realized. The new AB 45XT is suitable for a wide range of hulls and will offer great performance for sport hydros, vees and cats when used at the longer length. For light weight riggers the XT will produce a very wide powerband at a shorter length.

The AB 45XT is available with standard muffling or with Extra muffling.



CMDi Zenoah mount for Riggers
The CMDi Zenoah mount for Riggers is back in stock. These units are precision machined from 6061-T6 alloy. This mount will allow you to mount your Zenoah into a narrow 3.5" wide hull.




New AB Pipe Brackets
New pipes brackets to match the AB Billet pipes are now available. Lengths are 1.0" and 1.5". Other lengths and configurations will be available soon.



CMDi Bullet nose Stainless Steel Drive dogs
Introducing new Bullet nose Stainless Steel Drive dogs from CMDi. They are .460" X 1/4" with two set screws. The .460" O.D. makes a pefect match to most 1/4" prop hubs. Other sizes coming soon.



CMDi rudder assemblies and blades are back in stock
We have added a wider range of blades too.

Blades sizes availible are as follows; 0.9" X 4.4", 1.0" X 4.4", 1.0" X 5.1", 1.0" X 5.6" 1.1" X 5.1", 1.1" X 5.3", 1.1 X 5.6", and 1.2" X 6.0". 1.2" X 6.0" w/ Dual pick-up.

CMDi blades are made from 7075 -T6 which has 90% greater yield (bending) strength than the 6061-T6 commonly used by other hardware manufactures. This allows us to make thinner blades.

7075-T6 is triple the cost of 6061 and is much tougher to machine resulting in a higher cost part, but the performance improvement well justifies the extra cost.

CMDi pivot and transom brackets are also lighter due to the use of stronger material.





New bar stock AB90-100 pipes
This is the first ever 90-100 pipe offering from Andy Brown Performance. Machined for solid barstock, this pipe is available with Standard or Extra muffling.

A machined tapered header will soon will soon be available for a perfect match to CMB 90-101 engines.





New improved bar stock AB67 pipes
The new Billet AB 67-80 pipe is machined from solid barstock. This new design was used by Henry Velasko at the 2007 NAMBA Nationals to help him set the Fast Time and become the C Hydro National Champion.

This pipe is available with Standard muffling and Extra muffling.



CMDi Carburetor Arms designed with durability and convenience in mind.
Arm is drill and tapped for 2-56 ball link connectors. It uses 2 3mm set screws. Built with high tensile strength billet. Double filet design eliminates breakage. Fits all MAC and CMB Carburetors.


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