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There are many options for performance modification
for your Type-R from mild to wild you just have to set
a budget and pick a path. The basic modifications are
often referred to as "bolt-ons". The bolt-ons are Intake, also known as CAI (Cold Air Intake),
header and exhaust (Cat back). You have to pick your
modifications wisely with the Type-R as the stock parts
are well engineered and not just any modification will
net a power gain. Below we will go through some of the
performance parts on the market from basic bolt-ons
to more radical parts.
Intakes: Not just any intake is a good idea.
Short Ram intakes usually do not net any power gains
due to the fact they are still drawing in hot air which
is the biggest advantage to an intake. Below are come
of the more common intakes available.
- AEM Cold Air Intake
- Comptech Icebox
- Injen Race Division Intake
- Mugen Cold Air Intake
Header: Replacing the Header appears to be one
of the opportunities for the largest power gains. Again
there are several options and we will list some of the
more popular ones. You will need to weigh power gain
vs cost and also other issues such as ground clearance.
There are 2 prominent designs to a header. 4-1 where
all four primary tubes meet at the collector and 4-2-1
where two of the the primaries join and then the two
tunes join at the collector. It has been said that 4-2-1
will get you more torque but with today's latest trend
of 2.5" collector headers the 4-1 and 4-2-1 seem
to have little difference in performance. All of the
header below will be 2.5" collector headers and
will require a custom aftermarket catalytic converter
to fit.
- Toda Racing 4-2-1
- OEM Honda JDM 4-1
- DC Sports JDM 4-1
- SMSP Adjustable
- Hytech Adjustable
- Type-1 Racing
You can see a test of all these header on the same
Type-R HERE.
Exhaust:The exhaust on the Type-R is one of
the best flowing Stock exhaust available. It is a good
upgrade for a lower model Integra or Civic. However,
it does have some substantial bottle necks that keep
it from performing to it's potential. The best match
to a header listed above would be a 2.5" exhaust
but this is difficult to find as the most common diameter
seems to be 60mm (2.35"). The 2.5" exhaust
can be found but it does require some looking. The latest
changes are that manufacturers are starting to offer
63mm exhausts. You will find that the exhausts that
make the most power will also be the loudest so it is
all a compromise.
- Buddy Club Spec 2 or Spec 3
- Type 1 Racing B-pipe
- Type 1 Racing Axle Back
- Mugen Twin Loop
- Apex World Sport (one of the quietest on the market)
- Spoon Sports
- SMSP Custom 2.5"
- Hytech Twin Loop
Camshafts: Changing the cams will help the performance
of the car greatly. This is not a modification to start
with since cams seem to benefit most from the basic
mods above. There are several cams to choose from. You
have your pick of a mild cam that adds power while keeping
a a tame car for the street or going so wild that the
car will barely idle but will make big power for the
track.
- Toda Spec A, Spec B or Spec C
- Jun 2 or Jun 3
- Skunk2 Stage 1, Stage 2, Stage 3
- Crower
Engine Management: It is always a good idea
to tune your car to make the most of your modifications.
One of the main ways to tune is to use a fuel management
system. You can dyno your car and while on the dyno
monitor a wide band O2 (lambda) meter and set air/fuel
ratio. This cam be accomplished with a stand alone ECU
or a small piggy back system. Most of the units will
allow for VTEC engagement adjustment which is typically
needed.
- Apex-i VAFC (Piggy Back system)
- Field VTEC Controller
- Hondata S200 (Stand Alone, Requires OBD 1 and uses
P28 ECU or P72 ECU)
- Apex-i Power FC (Stand Alone)
- AEM Engine Management (Stand Alone)
Final Drive: The final drive is the ring gear
attached to the differential. Changing this gear will
affect the cars acceleration and top speed. As the number
of the ratio in creases the acceleration will increase
while the top speed will decrease. For example: Stock
gear ratio for the Type-R is 4.400 (Top Speed is around
150 mph). If you replace this with an ATS 4.929 you
will see top speed decrease to approximately 137 mph
while accelerating will increase.
- Stock 4.400
- JDM Final Drive 4.786
- ATS Final Drive 4.929
- Spoon Sports Final Drive 4.857
Lightweight Flywheels: There are two main types
of lightweight flywheels, aluminum and chromoly Both
have their plusses and minuses which you should research
and decide for your self what is best. Reducing flywheel
weight will allow the car to rev up faster but will
also allow the revs to drop faster.
- Comptech (Aluminum or Chromoly)
- Toda (Chromoly)
- Jun (Chromoly)
- Fidanza (Aluminum)
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