Courtenay (PDM's Girl Racer) N/A 240SX STS Build
PDM RACING's PINK PRINCESS 240SX
In the making since November 2006, comes Courtenay's 240SX
STS Build. Purchased in the summer as a more
reliable daily driver, Courtenay soon got hooked
on auto-crossing and after that it was only
a matter of time until she was at PDM for Don's
help. Who better to help then Canadian National
Champion in his own black 240SX, to help get
the car and driver better prepared for auto-cross.
Now her daily driver also doubles as her N/A Beast STS car!! With Don as her co-driver
as he builds up his next auto-cross car.
For those of you who auto-cross and those of
you who don't, there are rules for all classes
in auto-cross. From Stock classes to the high end builds
of Street-Modified, Steet-Prepared, Prepared
and Modified. We're building her 240 to be competitive
in Street Touring Sport. Within this class are
many strict rules that define how much and what
you can build up on the car. The major parts
we were able to modify were suspension, intake,
header, exhaust and ECU. With these simple upgrades
we were able to MATCH and even EXCEED the power
of a stock SR20DET.
What first started as a joke, then actually
became Courtenay's racing colors, were the pink
rims. Don jokingly said to paint a set of rims
pink, well Courtenay took it seriously and even
though pink is not a colour she associated with
the car, she thought for racing it would be
fun. Don's attempts to persuade her to choose
another colour did not work, and came the day
the Pink Panther Pearl was purchased and the
rims sent out for paint. When they were brought
back, Don's first words were "I don't know if
I'm going to drive your car anymore." He has
since taken a liking to the rims, and gets a
kick out of beating other competitors in a car
with pink rims and the sticky Bridgestone RE01R's.
For the aspect of suspension we replaced the
240's old blown stock shocks and stock low rate
springs with Whiteline coilovers. This helped
drop the ride height down and lower the center
of gravity. Along with of course adding to a
stiffer and more responsive car. After the coilovers
came the task of changing out all the worn out
stock bushings and replacing them with Energy
Suspension Polyurethane Bushings. Having all
new bushings stiffens up the car and perform
well for how hard we push it auto-crossing.
Next came strut tower bars for the front and
rear. And finally a set of sway bars. Upgraded
the front sway bar to 27 mm and the rear to
Energy Suspension Bushing Kit
Strut Tower Bar
Whiteline Sway Bars
For intake we had the freedom of being able
to upgrade to a cone filter and extension piping
to allow for a true cold air intake; however,
this was only possible if nothing was cut to
provide this allowance. For our choice of cold
air intake, we decided on Injen's intake and
cold air extension, with a K&N filter. This
set-up allowed us to make use of the hole already
at the front of the engine bay for the piping,
while allowing the engine to suck in cold air
and breathe better.
Injen Cold Air Intake
We were free for choices on headers as long
as it was C.A.R.B. exempt. The DC Sports header
was perfect for our application as it fit the
requirements and with the smaller diameter outlets,
this allowed the engine to keeps its torque
and still provide a better free flowing exhaust.
DC Sports Header
Exhaust is of free choice to what you please.
We decided to use the Megan 3" Drift Spec exhaust.
A good size to allow free flow of the exhaust,
but not enough that it will comprise any power.
Megan Racing 3" Drift Spec Exhaust
For the ECU we are allowed to have a tuned ECU, provided we keep the same housing and connections.
PDM has managed to crack the KA code and tune the engines for higher power outputs. From the ECU
tune alone, we have found around 25 RWHP. Impressive for simply changing the timing and fuel maps.
On my car:
Stock ECU map with the cold air intake, header,
exhaust and running 94 octane we found 145 RWHP
and 166 ft/lbs Torque.
ECU tune with cold air intake, header, exhaust
and running 104 octane we found 177 RWHP and
182 ft/lbs Torque.
All these numbers were found on the engine
with stock internals and 250 000kms on the engine
Mission Friday Night Street Legal Drag Racing Results
June 1st 2007 - 15.2 @ 90 MPH with a 2.2 60' ft.
Stay tuned for:
1/4 Mile Results at Mission Park Raceway's Friday Night Street Legals
Results from the upcoming auto-cross season
and any further tuning/dyno results from the car.