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Mini GT Outboard Powerboat Racing

Mini GT is an American Powerboat Association (APBA) Sportsman class raced in Minnesota and nearby states in events organized by the Twin City Powerboat Association (TCPBA).

Power: 25hp 2-cylinder Johnson/Evinrude
Boat: Production Tunnel or V-bottom, 10' min.
or Dillon Mini Vee
Min. Age: 12 years old -- Mini GT rules

The boats are tunnel hulls and v-bottoms, at least ten feet long, and powered by stock 25hp OMC motors with aluminum propellers. It's not complicated, and it's not expensive. Speeds hover around 40 mph. The class is open to drivers (men, women, boys and girls) as young as 12 years old, and there is no maximum age. Mini GT is for everyone!

As the 2008 racing season was about to get underway, it became apparent that we would have only three Mini GT drivers, and only two of them could be counted on to make every race. The decision was made by these drivers to upgrade their boats to GT Pro. As a result, there were no Mini GT races in 2008 -- or in 2009.

Build your own racing v-bottom boat
The Dillon Mini Vee is
the only non-production
boat approved for Mini GT

Details & Video

But we did not give up on Mini GT.

Since 2007 only production molded boats have been allowed in Mini GT. However, in an effort to bring back the class, the Twin City Powerboat Association board approved the addition of one homebuilt design to Mini GT. That design is the Dillon Mini Vee.

In 2010 Mini GT came back with three Dillon Mini Vees. One more Mini Vee has already been built for the 2011 season, and two additional ones may be joining the class as well.

2013: We added a 25hp option to our GT Pro class (and reduced the GTP minimum age to 12), effectively merging Mini GT with GT Pro. HOWEVER, Mini GT will remain a stand-alone class as long as there are enough racers to run the two classes separately. See the GT Pro rules for more details.

Mini GT will continue to be an excellent entry into boat racing. It is especially suited for the budget-minded, for those who want to keep it really simple, or if you want to get one or more kids into the sport.

See also: GT Pro and Sport C

Mini GT boats accelerate off the beach.

If you are interested in becoming a Mini GT or GT Pro racer, or want to know more about powerboat racing in general, please feel free to contact me with your questions. The TCPBA is a wonderful bunch of men, women and youngsters. We have hard-charging competition on the water at speeds from 40 mph to 130 mph, and geat comraderie and cooperation on the shore. The goal is to have safe, competitive races, and just plain fun.



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Sportsman Class Mini GT Rules

1) Technical Standards:

Minimum Weight -- 600 lbs.
Minimum Age -- 12-years-old

2) Engine:

a) Any 2-cylinder, 25 horsepower Johnson or Evinrude built from 1985 through 2005. Also, 20 horsepower Johnson and Evinrude motors (built from 1985 through 1999) may be upgraded for the class by replacement of the intake and carburetor with parts that are compliant with the aforementioned 25hp motors. Blocks from any 31.8 cubic inch OMC/BRP powerhead manufactured from 1976 to 2005 may be used, although 25hp intake and carburetor must be used.
b) Engines must remain stock (as manufactured) with the following exceptions: RPM limiters may be removed. Electric starter may be added. Solid or pinned motor mounts are allowed. Power trim, manual trim or spoilers, adjustable while underway, are not permitted. Tiller arms may be removed Cylinders may be bored to .030 and fitted with OEM over-sized pistons Cosmetic appearance of the engine may be changed, but manufacturer indentification must be retained
c) Engines must be bolted securely to the transom with a minimum of two bolts
d) An ignition interrupt switch attached to the driver via tether is required.

3) Boat:

a) Only production molded tunnel or v-bottom boats (no hydros), and plywood-constructed home- or custom-built boats built to the Dillon Mini Vee design (dillon-racing.com)
b) Boat must be a minimum of 10.0 feet long and 48 inches wide
c) Drivers must remain in a sitting position at all times, in a seat securely fastened to the hull, and use a foot throttleand steering wheel.
d) Junction of seat and seat back may not be more than 36" rearward of midships.
e) Two cu. ft. foam flotation required (three cu. ft. recommended per GT Pro rules)

4) Propellers:

a) Through-hub, aluminum propellers only
b) Cupping, re-pitching and removal of material is permitted.
c) No material may be added to a propeller, except for repair


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