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Quarter Midget Association
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Midget Association
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Quarter Midgets of America  
Quarter Midget Racing is divided into 16 classes plus one ½ Midget class
each class. (Note - Weights described below are minimum weights)

Junior Novice - This is the beginning class for all drivers ages 5 - 8. You
will have to go through a novice training course that explains the safety
and allows the driver to develop the proper driving skills to compete on the
track with other cars in a novice race. Most drivers that start out in the
novice class usually move up to one of the competitive classes after three
months. You can file for an extension and continue to race in the novice
class if the driver stills needs time to develop their driving skills. The cars
use a 120 cc Honda motor. This is the same motor that you will use when
you move up to the Jr. Honda class. A red carburetor restrictor plate is
used to keep the car at a slow pace and allow the driver to get a feel for the
car without the higher speeds of other classes. The minimum weight for
the car and driver in the Jr. Novice class is 250 lb.


Senior Novice - There are a few differences between Sr. Novice and Jr.
Novice. The first difference is Sr. Novice is the beginning class for drivers
ages 9 - 16. Since the kids are older, they are allowed to start out at a faster
speed, utilizing a blue restrictor plate. This gives them a little more speed
than the Jr. Novice class and helps them better prepare for competitive
racing. The minimum weight for the Sr. Novice class is 275 lb.

Junior Honda - This is the competitive class that most kids move to after
they complete Jr. Novice. This class uses a 120 cc Honda motor. The same
blue restrictor plate used in Sr. Novice is used here. This is a very
competitive class for younger drivers. The ages range from 5 - 8 years. By
utilizing the Honda motor QMA can keep the cost of racing at a affordable
level for most drivers. This is the preferred class for most families with kids
in this age bracket and has some of the larger car counts. The car & driver
weight is the same as Jr. Novice so when a driver graduates from Jr.
Novice all they have to do is change the restrictor plate. This is a fun class
with very competitive racing.


Senior Honda - This class is what most drivers graduate to after Sr.
Novice. This is the same step up that the Jr. Novice drivers take to Jr.
Honda. The driver must be 9 - 16 years old. Sr. Honda also draws larger car
counts due to the reasonable cost of the class. The driver and car weights
are 275 lbs and the 120 cc Honda motor is unrestricted. Because of the
great competition many drivers choose to stay in this class thru most of
their quarter midget career.


Heavy Honda - Heavy Honda specs are the same as Sr. Honda. The only
difference is the driver and car weight. The driver must weigh no more
than 100 lbs and the total car and driver must weigh at least 325 lbs. This
class allows older and heaver kids to participate with out being
disadvantaged. When a driver goes over the 100 lb mark they are adding
unnecessary weight to the car and will start to run at a disadvantage. This
allows them to compete in a class against a fair field of cars.


Junior Stock - The Stock classes are how it was done in the 60's and 70's.
This was the main class run at all weekly events. Stock motors are small
motors built by Deco. The Deco motor in its original form was a military
generator motor that ran 2,000 to 3,000 rpm. Some time ago the production
of Deco motors and parts was stopped. This left QMA with no choice but to
allow engine builders to manufacture their own parts. Eventually the cost
of Deco rebuilds started to increase because you were paying the engine
builders for their knowledge and ability to manufacture superior parts. In
the early to mid 90's it left the teams wanting to spend the most money
with a large advantage over the lower budget teams. Now that QMA has
introduced the Honda motors to the sport this class has turned into an
introduction to the high performance classes. At peak rpm these motors
run upward of 8,000 rpm. The Jr. Stock class has the same age and weight
requirements as Jr. Honda. The Jr. class must run an exhaust restrictor
plate to keep the speeds down to a reasonable level. The motors are
regulated to certain specifications to keep the cars within a reasonable
speed. Most Jr. Stock drivers drive this class as well as the Jr. Honda
class. The Jr. Stock class reaches faster speeds and lap times allowing the
drivers to gain more on track experience. Due to the high rpm's that these
motors run it gives the drivers more throttle response and a different feel
from the Honda motors. This is a great class if a Jr. driver wants to run a
second car.

Senior Stock - This class is the same as Jr. Stock. The only difference is it
is designed for the Sr. group of kids. The class requirements are the same
as Sr. Honda and the motor requirements are the same as Jr. Stock but
without the exhaust restrictor plate.

Light Mod - This is where the performance classes start. The Modified
class is basically a tuned up Stock motor. Many of the specifications are
the same, with a few exceptions. The carburetor specifications are
different and many of the smaller components' specs are looser to allow
for higher performance. On most race tracks the Modified class is usually
around 3 tenths of a second faster than the Stock class. Most drivers have
several years of experience before moving to this type of class. Most clubs
do not have a field of Mods at their weekly shows. This class is run at most
regional and national events. The cost and the maintenance of the motors
prevents many people from running this class on a weekly basis. The Lt.
Mod cars must weigh at least 270 lbs and the driver must be 7 years old
before competing. The Peak rpm is around 10,000.


Heavy Mod - All of the Hvy. Mod specifications are the same as Lt. Mod
with the exception of the driver & car weight. The driver must weigh 100
lbs and the driver and car must weigh 325 lbs total. Again this allows the
bigger kids to run against an equal playing field.


Light 160 - The Lt. 160 class is the next step up once kids have raced Sr.
Honda for several years and are looking for more speed. The engines are
160 cc Honda motors. You will see most local races with a field of 160 cars.
This class is usually the more experienced local racers. The minimum age
limit for the 160 class is 8. At times you can have some of the Jr. drivers
that fit the age requirements enter this class. It makes for an exciting show
to see the experience vs. the inexperience. There are no modifications
allowed to the motors. This is to help keep the cost of racing down and
keeps the playing field equal. In Lt. 160 the car and driver combined weight
is 270 lbs.

Heavy 160 - All of the Hvy. 160 specifications are the same as Lt. 160 with
the exception of the driver & car weight. The driver must weigh 100 lbs and
the driver and car must weigh 325 lbs total. Again this allows the bigger
kids to run against an equal playing field.

Light B - This is the next performance step up from the Modified class. The
drivers skill is the key ingredient to success when running in the "B"
class. It does take a good motor and detailed car set up to win in this class
but the driver can make or break your day. The "B" motors are the same
motor as the Mod and stock class but the bore size is larger and the rule
book is much looser than the lower classes. This allows the engine
builders to get creative and "build power". The engine runs between
11,000 and 12,000 rpms. The minimum age is 8 to compete in this class
and the car and driver combined weight for Lt. "B" is the same as the other
Lt. classes, at 270 lbs.


Heavy B - Heavy "B" follows the same guidelines as Lt. "B" but has the
same Hvy. Driver and car specs as the other Heavy classes do.

Light AA - This is QMA's token class. If you can win while driving a "AA"
you can win in anything. The car specs are the same as any other class
but it is the motor that counts. These motors are the traditional Deco
motors with large bores and the special ingredient is strait methanol fuel.
The "AA" class is a very exciting class to watch due to the different
strategies the drivers and handlers can have. Each race the cars can only
run 80 laps due to the large amount of fuel they use. So when you add up
race laps and caution laps most "AA" races have a fuel stop in the middle.
This is a mandatory red flag stop where the drivers are required to exit the
car during refueling process for safety reasons. Handlers and drivers have
the option to pull the cars into the pit area and make adjustments or
change tires but they must line up in the back of the field on the restart. On
most QMA tracks the drivers lift or breath the throttle in the corners to slow
up the car. When the driver hits the pedal on the exit of the corner it is a
burst of power accelerating the car to max speed in a short distance. It is
hard to get caught cheating in this class due to the lack of restrictions on
the motors and fuel. The rule book is written in a few paragraphs instead of
several chapters. The engines go through extreme abuse so the
maintenance is very high. At peak speed the motor runs around 13,000
rpm. Lt. "AA" is the fastest class in QMA because the car weight is lighter
than the Hvy. "AA" class. The car and driver weights are the same as the
other Lt. classes and the minimum age is 9.


Heavy AA - The description is the same as Lt. "AA" but it follows the Hvy.
weight structure mentioned in the above heavy classes.

World Formula - This is a new class that is developing in QMA. The World
Formula class uses a Briggs & Stratton "World Formula" motor. This class
was designed for handlers that wanted more speed than the Honda
classes allowed but don't want to make the investment it takes to get into
the "B" or "AA" class. The speed is similar to what the "B" class runs. The
drivers do have some throttle control. This is a regulated class with a
detailed rule book. QMA's goal is to keep the cost of the engines down so
that anyone wanting to participate can. The World Formula's only have
one class. All drivers must be at least 9 years old to enter and the minimum
car and driver weight is 340 lbs. There is no minimum driver weight. This is
a growing class for QMA and has allowed many drivers to stay in quarter
midgets longer than they would if the class was not around.

Junior Half Midgets - Additionally ¼ Midget drivers may graduate to Junior
½ Midgets. Junior ½ midget drivers may be ages 11-17. The ½ Midget class
is the anything goes class. You can basically use any make air cooled
engine under 253 cc. Many drivers utilize a hand operated clutch to help
get the cars started. Since the cars are direct drive the driver will pull the
clutch handle, then the handler will start to push the car. When the car
reaches the desired speed the driver will release the clutch to start the car.
This class is where horse power matters because you have to drive a car
that weighs in at 350 lbs with the driver in it.
Racing Classes
"You win some, you lose some, you wreck some."
Dale Earnhardt
"To finish first, you must first finish."
Rick Mears
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