A few mods...

[00itr00]

I'm planning start doing some mods in my itr, I wanna start with 3 things:

-Exhaust
-Air intake
-Lowered springs

What do you guys think about it? Suggestions are welcome!


Thanx

[Bbasso]

Straight from here: http://www.itrca.com/FAQ/faq.php

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)

[itr341]

Wow, lots of good info there. I suggest you set a specific goal taking into account your budget and what you want the car to be like once it is "done". For example, do you want to focus on power, handling or looks, or maybe a balanced amount of each?
Make sure you pick parts that wouldn't take you in one direction alone, becaue you may change your goal as time goes on. I also suggest getting the best possible parts you can afford, you don't want to go back and purchase a different suspension setup(for example) because the one bought doesn't meet your needs. I have done this myself, but with the vast amount of information on this site and others you should be able to avoid the trial and error most people have gone through. Good luck!

[00itr00]

Thanx a lot man. Very helpfull!

[JUN.R]

do a little research for what you're looking for, alot of the products listed work a little differently as far as Low/Mid/High range power gains though... (i.e. the Comptech products all provide a little more power at about MId Range) which is good for road course type racing. just know what you want before you go buying expensive parts such as these

note: i'm not at all a fan of Comptech products i was just giving you an example.

you can find dyno sheets of just about everyone of these products Bbasso listed on here and HT.