Mazda RX7 Autocross Car
|
| The
Project: |
1982 Mazda RX7 |
| Purpose: |
The purpose of
this project was to build a lightweight, good handling car
to compete in precision driving events known as "Autocrossing."
An Autocross is a driving skill contest using your own car,
one at a time, against the clock. Autocross is an opportunity
to develop driving skills at a minimum cost. Courses are set
up in large paved parking lots and defined by rubber traffic
cones. Most courses are between 30 seconds and 2 minutes in
length. Most courses are run in second gear at speeds that
do not exceed street speeds. Attention to car placement on
the course can make the difference between a winning time
and a slower one. If a cone is knocked over, a one second
penalty is added to your time. Cars are classified by level
of preparation. We plan on running our RX7 in a "modified"
or "prepared" class due to the engine (larger than original)
and modifications we have performed.
We plan to use
test equipment (pyrometers, gravity sensors) and will be
able to download the results. This will enable us to discuss
our findings and make adjustments to improve the handling
and performance of the car.
|
| Engine: |
Mazda
13B 80 cubic inch rotary with bridge ported housings |
| Carburetor: |
Stock 4-Barrel |
| Transmission: |
Stock
Mazda 5 speed |
| Rear
End: |
4:44
to 1 gears and positraction |
| Paint: |
Red
and White by Mountain View Miracle Auto Paint |
| Highlights: |
- Electronic
ignition
- High rise
manifold and exhaust header
- Aluminum
flywheel
- Adjustable
shocks at all 4 corners
- Camber/caster
plates (completely adjustable)
- Flared fenders
- Panasport
8x15 inch wheels w/Goodyear-racing tires
- Front and
rear swaybars
- All mounting
bushings are made from special materials
- Stripped
and painted interior with a custom aluminum dash panel
|
| Sponsors: |
- Mountain
View Firestone
- Dandos Performance
- Matts Lark
Prototype Machining
- Service
Auto
- Miracle
Auto Paint of Mountain View
visit
our sponsor page!
|
|
1999 - 2000 School Year - Day 1, so...it needs some work |
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Gotta love the rotary engine! |
|
Wiring the electronic ignition |
|
More work |
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A bit of paint, and lot of work later... |
|
All shined up and ready to go |
After
5 seasons of competitive racing, 2 top-time-of-days and
2 championships, our RX7 racing engine expired. What you
are looking at is copper bearing material residue in the
oil pan. A complete engine rebuild is currently underway
in the Auto 2 class.
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