Mods for an ITR

[alex004]

Ok upon buying my integra type r, im loving it. Its got a decent dollop of power but a bit more wouldnt go a miss.
Its currently got, (fitted in japan):

-Mugen air intake
-Mugen exhuast.

My first step is to rip out the ugly heavy restrictive cat, and throw it far far away. From there i have an option. Do i:

- Buy a set of stainless stell flow tested extractors - A deal that Mi Tech are doing for me; $900

OR

- Get an Apexi Power FC (i think they are called) with hand controller installed and tuned for around the $1600 mark.

Anyone know which would be the most worthwhile for the money or has anyone had any experience with either?

Cheers

[BLAZED_RACER]

replace the cat with a resonator, not sure what the brand of headers are mitech are selling;

but for a ITR i would go with a set of headers which is proven to perform, such as a set of TRR headers, or even go JDM 4-1 ITR headers,

with a stock car, you wouldnt need a POWER FC ECU, get a apexi VAFC and have the fuel tinkered with on a dyno,

[alex004]

cool thanks for that, il look into a power vafc, will that act as a vtec controller aswell?

Any idea of how much they are and if you know where to get the headers you mentioned and a vafc?

[nathan23h]

Originally Posted by alex004

cool thanks for that, il look into a power vafc, will that act as a vtec controller aswell?

Any idea of how much they are and if you know where to get the headers you mentioned and a vafc?

APEXi VAFC contact Ashley @ Japanese Perfomance
Phone:04 5699 383
Web: www.japaneseperformance.co.nz

TRR Headers contact Evan @ SpeedFactor
Phone:07 571 2297
Email:speed@sentry.co.nz
Web: www.speedfactor.co.nz

[FLYRYD]

or better yet.

buy the extractors, and a few other bits and bobs.
then buy a Power FC and TUNE it

[EG8T]

Originally Posted by alex004

My first step is to rip out the ugly heavy restrictive cat, and throw it far far away.

Dont throw it away, you will need it when the emission testing law comes in place very soon :wink:

[David R]

With a high-spec car like an ITR you're best bet is to buy expensive name-brand parts or stick with OEM. A JDM 4-1 ITR header would give you some gains over your 4-2-1 one, altho not as much as a more expensive header like DC Sports, Toda, etc. In terms of $$ per HP then the 4-1 ITR header is good value, but its not going to perform as well (or cost as much) as a good after-market one.
Next thing I'd do would be some stage 1 cams (Toda A's, S2S1 etc), adjustable cam gears, VAFC and some dyno time.

[BLAZED_RACER]

however; remember if your looking at a VAFC or anyother aftermarket fuel management;

make sure you decide what kind of path you want to head into;

such as basic intake/headers/exhuast mods, VAFC will be good for it;

however, it (VAFC) wont be enough to tune a motor with Stage one cams and pistons etc done to it; which will need something like a POWER FC, or LINK ECU;


for TRR headers, go to beyond in AKL, or Speedfactor TGA

[INPHAMISTICS]

I wouldn't buy the power-fc until you get more mods on your car then you can dyno tune it :wink:

[turbozxi]

I would be more likely to get cams might as well go as far as you can and still be streetable, do a quick search on www.honda-tech.com in the type R forum and see what the best header is then look at getting hondata..

[VTECEM]

First in for most, get a full service and tune up, as Hondas love fresh new clean oil, and then, filter, exhaust, headers pretty basic stuff, then mayb later on inlarge your throttle body, and get a port n poilsh and also a gizzmo chip, (remap's your ecu, and no rev cut off any speed cut off- of the record tho, lol)


Enjoy the BOOBAA world..
Luke

[David R]

Originally Posted by turbozxi

I would be more likely to get cams might as well go as far as you can and still be streetable, do a quick search on www.honda-tech.com in the type R forum and see what the best header is then look at getting hondata..

True, it all depends on how far you want to go. I suggested stage 1's as they wouldnt require an upgraded valvetrain, and only need minimal tuning. If you upgraded the valvetrain and went for some stage 2 cams you could get close to 200whp with the standard bottom end and still be streetable (check out rodrez's post with the three different set-ups, all used VAFC too). Then if you wanted to bump up the compression and.....
It all depends on how much money you want to spend and how reliable/driveable you want the car to be.

[turbozxi]

Originally Posted by David R

True, it all depends on how far you want to go. I suggested stage 1's as they wouldnt require an upgraded valvetrain, and only need minimal tuning. If you upgraded the valvetrain and went for some stage 2 cams you could get close to 200whp with the standard bottom end and still be streetable (check out rodrez's post with the three different set-ups, all used VAFC too). Then if you wanted to bump up the compression and.....
It all depends on how much money you want to spend and how reliable/driveable you want the car to be.

Yeah I think if your going to spend the money spend that bit extra and go the whole hog, you will generally always want more. :thumbsup:

[NAspirated]

Originally Posted by EG8T

Dont throw it away, you will need it when the emission testing law comes in place very soon :wink:

unless your lucky enough like some of us to own cars that were manufactured before 1990, then you can skip emissions laws all together :wink:

[alex004]

cool guys, thats certainly shed some light for me.

I just have to work out how far i want ot go. Its the same old story once i start where will it finish?

Its given me some food for thought, i think a set of headers is first. Then after a VAFC, that will keep me happy for a bit i think.

Cheers for all your ideas. - Anyone know of any meets coming up in auckland as it would be nice to meet with some of you and get some ideas?

[DrTec]

Love these posts.. mean i dont have to ask

Im basically gona stick with the simple mods then..
CAI and my VAFC2 tuned to it.

Fuck exhaust. Hate the noise hahah. Prolly just the 4-1 headers for a little extra

[Lith]

Originally Posted by DrTec

Love these posts.. mean i dont have to ask

Im basically gona stick with the simple mods then..
CAI and my VAFC2 tuned to it.

Fuck exhaust. Hate the noise hahah. Prolly just the 4-1 headers for a little extra

Yeah, I basically had stock exhaust in the Prelude and that did the job well. ITRs have pretty decent exhaust stock, though header + removed cat can help the flow a little.

With TRR 4>1 + AEM CAI + Tuning I'd expect well into the 130s @ wheels.

[M3_Power]

Originally Posted by David R

With a high-spec car like an ITR you're best bet is to buy expensive name-brand parts or stick with OEM. A JDM 4-1 ITR header would give you some gains over your 4-2-1 one, altho not as much as a more expensive header like DC Sports, Toda, etc. In terms of $$ per HP then the 4-1 ITR header is good value, but its not going to perform as well (or cost as much) as a good after-market one.
Next thing I'd do would be some stage 1 cams (Toda A's, S2S1 etc), adjustable cam gears, VAFC and some dyno time.

The JDM stock 4-1 headers are actually pretty good if not comparable with a lot of the aftermarket items ...

Originally Posted by Automotive Performance Engineering

Header Results: Individual Dyno Results
JDM Jun download --- View HP/TQ 186/ 138
JDM Spoon download --- View HP/TQ 187/ 138
JDM ITR 4-1 download --- View HP/TQ 185/ 137
Mugan mod. hytech download --- View HP/TQ 187/ 136
DC JDM 4-1 download --- View HP/TQ 187/ 137
Comptech 4-2-1 download --- View HP/TQ 187/ 137
JDM Toda download --- View HP/TQ 190/ 137
JDM Mugen download --- View HP/TQ 186/ 135
SMSP header download --- View HP/TQ 190/ 136
Type 1 download --- View HP/TQ 186/ 137
2.5" exhaust/test pipe download --- View HP/TQ 180/ 131
Stock download --- View HP/TQ 176/ 119
SMSP / Toda download --- View Overlay ----NEW
DC JDM / Type 1 download --- View Overlay

Link here with dyno graphs
http://bob123e.tripod.com/thegreatheadertest/

[LOWTEC]

sorry to hijack your post a lil but i was told by magoo mufflers in nelson the other day tht i cant remove my cat out of my ITR as no matter what i do resonator wise it will be too loud and will not get a WOF? is this correct? i ddnt thnk so

[David R]

M3 I've seen that chart before and agree that the JDM ITR 4-1 header is really good value for money [and bloody good for an OEM header] but from what I've gathered the big difference between the ITR 4-1 and say a top end header like SMSP is the shape of the power and torque curve. I havent actually seen the dyno sheets for all those runs, but I'm sure thats how all the guys who spend >$1000US on a header justify it.

[Macros]

Originally Posted by LOWTEC

sorry to hijack your post a lil but i was told by magoo mufflers in nelson the other day tht i cant remove my cat out of my ITR as no matter what i do resonator wise it will be too loud and will not get a WOF? is this correct? i ddnt thnk so

this is not correct.

[M3_Power]

Originally Posted by David R

M3 I've seen that chart before and agree that the JDM ITR 4-1 header is really good value for money [and bloody good for an OEM header] but from what I've gathered the big difference between the ITR 4-1 and say a top end header like SMSP is the shape of the power and torque curve. I havent actually seen the dyno sheets for all those runs, but I'm sure thats how all the guys who spend >$1000US on a header justify it.

From the webpage I got the info from ...

Here's the JDM ITR 4-1 header ... the chart doesn't look too bad to me:


And here's my personal favourite wish-list header - TODA ... only if it wasn't soo expensive ...

[David R]

Hmm, they do look pretty good, even better considering its OEM and under 1/2 the price of TODA. Well done Mr Honda!

[Suk]

Wow, great stuff u've got there.. mugen filter and exhust? any chance of sellin them?

[alex004]

what would you be prepared to pay for them? 8)