Cordia Turbo Performance
Cordia Turbo's take very
well to performance modifications as long as it is being done by capable
Cordia Mods FAQ?
By Using good quality oil,
Regular servicing and idling the car for a few minutes after a hard drive.
Are all extremely beneficial
to a Cordia Turbos lifespan. :)
The best type of setup for
a Cordia turbo is a mandrel bend system using mufflers with a straight
through type flow design. This is best for performance and sound
(Note :AC unleaded models
should also use a hi-flow catalytic converter)
Size really depends on your
budget anything from 2.5 inch up to a 3 inch system will give a definate
performance increase. Going a bigger than 3 inch dump pipe from the turbo
can be difficult due to engine room.
Winding up the Boost?
A Bleed valve setup is a
fairly cheap and reliable way of easily adfjusting boost pressure.
A mild boost increase of
9-10psi is fine on a stock engine in good running order with no intercooler.
Any higher and it is recomended to fit an intercooler.
Also the two factory Throttle
body injectors will not be able to deliver enough fuel past the factory
ecu over boost cut point.
AA & AB Leaded Models
AC Unleaded Model =12psi
To run higher boost you
need a modified or aftermarket ecu and run extra injectors and an upgraded
fuel pump. Also it would be desirable to look at strengthening engine internals
with Forged pistons etc..
Hi Flowed Turbo's?
Always use a reputable Turbo
Specialist. They will be able to give you the best info on what is the
most suitable turbo setup for your car.
While the leaded model Cordia's
used a big Mitsubishi TC06 turbo the AC(unleaded) Cordia used the much
smaller TC05 turbo which is a bit of a restriction when it comes to making
One of the most effective
Cordia performancve mod's is fitting a Hybrid Mitsubishi TC06 turbocharger
that uses a TC05 exhaust wheel. This turbo setup gives you much quicker
spool up time and retains the good top end power of the TC06. Resulting
in a very good powerband.
Also these days the Mitsubishi
TD05 turbo as used in the Galant VR4 is becoming increasingly popular as
an aftermarket turbo upgrade for a Cordia. It uses a more modern and slightly
more efficient design than the old TC series Mitsubishi turbochargers.
Blow off Valves?
A Blow off valve vents Excess
pressure which is created when the throttle is closed (during gear changes
deceleration) Which prevents
Blow off valves will help
increase the lifespan of your turbo.
They do not increase engine
You will notice however
a difference in performance with slightly less turbo lag after gear changes.
Blow off valves can be fitted
on a Cordia Turbo to either vent to atmosphere(pshhh!) or plumbed back
inline(for less lag and less noise).
In lower boost applications(eg:
under 15psi) the difference is minimal with venting to atmosphere or back
Turbo timers are not really
a necessity. If you are not too fussed about sitting in your car for a
couple of minutes while it idles after a hard drive. Then save your cash.
Aftermarket Engine Management?
Replacing the factory Cordia
ECU with a good quality aftermarket ECU (eg: Motec, Autronic etc..) has
many performance advantages. It gives you the freedom to tune your car
to its best ability.
*Ditch the Throttlebody
Injection setup for multi point. (L300, Sonata, Magna)
*Replace the factory airbox
and run a Rampod style filter with sheild and intake.
Aftermarket Engine management
has numerous advantages. It is really just a matter of finding a brand
that will suit your performance needs and budget.
Unfortunately you are probably
looking at the price that you bought your Cordia Turbo for. After ECU unit
cost, wiring looms, installation and dyno tuning.
A Cordia Turbo will benefit
far more from a quality aftermarket ECU than any of the go fast chips available
on the market.
Intercooling a Cordia will
give you the advantage of being able to run a bit more boost. (more HP)
But the extra piping will also increase spool up time for the turbo as
well, and in certain models your aircon will have to go.
Intercooling is an area
where you will have to spend a lot of time finding the best setup (front
or top mount?, piping & core size?, water/air?, air/air?) to suit your
Cordias performance and everday driving needs. It is not the cheapest or
easiest performance mod on a Cordia.
But a good intercooling
setup can give you an excellent scope for increased performance on a Cordia
Turbo. On the other hand a quick whack up intercooling job can leave
you with a car which is fairly poor to drive.
Cutting the factory airbox?
I would not recommend cuting
the factory airbox on a Cordia fitted with a factory ECU. For the questionable
short term increase in performance, It will compromise an engines life
Aftermarket Air Filters?
Unfortunatley you cannot
run a rampod style filter setup on a Cordia with a stock ecu and karman
votex airflow meter.
Many company's like K&N
do make replacement airfilter elements for Cordia's. Just make sure that
it is not an excessively oily style filter as it could damage your air
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