has anybody done this conversion on their itr? i just got some na2 calipers on ebay, what rotor do i need to fit this? i read that odyssey ra9 or accord euro r rotors will do, can anyone confirm this? does anybody have autozone part numbers for these rotors? i tried pm'ing miraz but he hasn't replied yet

 

Search... Found in the ITR FAQs thread located just above the location of where new posts appear.


https://honda-tech.com/zerothread?id=743266 - NSX
https://honda-tech.com/zerothread?id=720430 - NSX
https://honda-tech.com/zerothread?id=610835 - NSX
https://honda-tech.com/zerothread?id=482434 - NSX
https://honda-tech.com/zerothread?id=291367 - NSX
https://honda-tech.com/zerothread?id=239844 - NSX
https://honda-tech.com/zerothread?id=349039 - NSX/Legend

 

NA2 is an engine code and does not specify the brake setup on the NSX.

The NSX has two different brake setups, one for the 1991-1996 NSX (which had the NA1 engine), and the other for the 1997-2005 NSX (which had the NA1 engine and the NA2 engine).

NA1 = 3.0-liter V6, in all 1991-1996 NSX, and automatic transmission 1997-2005 NSX.

NA2 = 3.2-liter V6, in manual transmission 1997-2005 NSX.

The 1997-2005 NSXs has a different brake setup from the 1991-1996 NSXs. The 1997-2005 NA1 NSX has the same brake setup as the 1997-2005 NA2 NSX.

Sounds like you've been talking to someone who isn't very familiar with the NSX...

 

ok i should have been more specific, i got the later model nsx brakes with the 300mm rotor. can anyone confrm if the odyssey ra9 rotors will work on this setup? i'm looking for feedback from people who've actually done this conversion.
btw i DID search before posting this, it's a lot easier to search rather than wait for a reply to a post. unfortunately i couldn't find what i was looking for, hence my reason for making this post

 

Based on what Ken said, I guess NA2 calipers are for all 97+ NSXs...

NA2 calipers are different from NA1 units in that the spacing of the carrier bracket thingy is different. I believe you will need 16in wheels if you want to use the NA2 carriers.

NA2 calipers:


NA1 calipers - SEE HOW THE BRACKET IS CLOSER TO THE CALIPER:





Modified by Kengs at 1:57 AM 7/28/2006

 

For the NA1 calipers, you need a 282mm x 28mm rotor, I think the Legend GS rotor is the correct application.

According to this auction for the NA2 calipers, you need CL1/CL7 (Euro Accord R) rotors:
http://page4.auctions.yahoo.co...26374

Looking at the Dixcel/AP Brake (JPN) website, CL7 and CL9 (TSX) use the exact same rotor (300mmx28mm), so you might want to try test-fit them
http://www.apbrake.com/list/ro...p.htm


Modified by Kengs at 1:38 AM 7/28/2006

 

tnx kengs the euro accord r rotors are 300mm, just like the ra9 odyssey rotors. however i can't verify if these two rotors are the same in terms of hat height and hub hole diameter. does anyone know if they're the same?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kengs &raquo;</TD></TR><TR><TD CLASS="quote">Looking at the Dixcel/AP Brake (JPN) website, CL7 and CL9 (TSX) use the exact same rotor (300mmx28mm), so you might want to try test-fit them
http://www.apbrake.com/list/ro...p.htm
</TD></TR></TABLE>

Sorry it took so long to edit, I was on the phone

 

OT:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">
NA1 = 3.0-liter V6, in all 1991-1996 NSX, and automatic transmission 1997-2005 NSX.

NA2 = 3.2-liter V6, in manual transmission 1997-2005 NSX.
</TD></TR></TABLE>

Please clarify what you mean by how NA1 and NA2 represents the engine code, I've always known the two different engines of the NSX as the C30a and C32b.

I have always assumed that NA1 and NA2 referred to the chassis (although i know they are pretty much the same between the years, kind of like the AP1 & AP2), but i have never confirmed that with a legitimate source (the term NA1/2 has been commonly used among the NSX forums which is where i based my assumption from)


EDIT: spelling


Modified by Freshazzburu at 11:32 PM 7/27/2006

 

tnx kengs, you've been a lot of help

 

why don't you just go to an autozone, pep boys, advanced auto parts, and/or o riley auto parts and just take a look at the rotors and compare?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jomama &raquo;</TD></TR><TR><TD CLASS="quote">why don't you just go to an autozone, pep boys, advanced auto parts, and/or o riley auto parts and just take a look at the rotors and compare? </TD></TR></TABLE>

Like they are going to have Euro Accord R rotors

I checked and since the TSX rotor application has the exact same part number as the CL7 rotor, and is the desired 300mm x 28mm size, he should test-fit with that since it is easy to find

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kengs &raquo;</TD></TR><TR><TD CLASS="quote">Based on what Ken said, I guess NA2 calipers are for all 97+ NSXs...</TD></TR></TABLE>

They should be referred to as '97-05 calipers (and '91-96 calipers).

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Freshazzburu &raquo;</TD></TR><TR><TD CLASS="quote">Please clarify what you mean by how NA1 and NA2 represents the engine code, I've always known the two different engines of the NSX as the C30a and C32b.</TD></TR></TABLE>

You are correct; C30A and C32B are the engine codes for the 3.0-liter and 3.2-liter NSX, respectively.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Freshazzburu &raquo;</TD></TR><TR><TD CLASS="quote">I have always assumed that NA1 and NA2 referred to the chassis (although i know they are pretty much the same between the years, kind of like the AP1 & AP2), but i have never confirmed that with a legitimate source</TD></TR></TABLE>

The codes (NA1 and NA2) are actually the 4th through 6th characters of the vehicle identification number (VIN) of the NSX. In the '91 service manual where it describes the VIN, it says that NA1 is the "Body Type = Acura NSX". I don't know what it says about these digits in the '97-05 service manual. It can't be a chassis code, since the chassis is the same for all '97-05 NSXs, including the NA1 as well as the NA2. The chassis is slightly different from the '91-96 NSXs, with the brake setup (calipers, and rotor and piston diameters) being the most obvious difference.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Freshazzburu &raquo;</TD></TR><TR><TD CLASS="quote">(the term NA1/2 has been commonly used among the NSX forums which is where i based my assumption from)</TD></TR></TABLE>

The terms are used only occasionally, and are not all that common, on the NSX forums, both here and on NSXprime. (I am intimately familiar with both. ) When they are used, it is to refer to the engine or transmission (where they properly distinguish between the possible configurations) rather than the chassis (where they don't).

 

I'll do some research about the chassis code for the NSX later when i get home because i'm sure i'll be bored. This one is really making me scratch my head; i hate being stumped about something like that

Thanks for that slight bit of info regarding the VIN

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">Sure.

I'm sure you realize that those digits on the VIN for any ITR are DC2...
</TD></TR></TABLE>

Except the DB8s and the DC5s, of course.

 

In the '98 service manual for the USIM Integra, it refers to the fourth through sixth digits of the VIN as "Line, Body, and Engine Type":

DB7 Integra 4-door/B18B1
DB8 Integra 4-door/B18C1
DC2 Integra 3-door/B18C1, B18C5
DC4 Integra 3-door/B18B1

Which is a similar example. The ITR is a DC2, but so is the GS-R hatch. Different chassis, but both are DC2.

 

http://www.answers.com/topic/shutokou-battle

"These "types" are actually the real chassis code used by the Japanese makers to designate the various grades of a lineup

TOYOTA

* (AE86T) Sprinter Trueno GT A'pex 3DOOR 1985
* (AE86L) Corolla Levin GT A'pex 3DOOR 1985
* (JZA80) Supra Type RZ TWIN TURBO 1993
* (JZX100) Chaser Tourer-V TURBO 1998
* (SW20) MR2 GT 1997
* (XE10) Altezza RS200 "Z EDITION" 1998

~~~chop~~~

HONDA

* (DC2) Integra type R 3DOOR spec'98 1998
* (EK9) Civic type R spec'98 1998
* (NA2) NSX type S Zero 1997 "



http://www.upgrademotoring.com...e.htm

"Chassis Code Number Reference Guide

~~~chop~~~

1991- Acura NSX NA1"



http://www.msport.co.uk/acatal....html

"Tein N1 Damper Kit for HONDA NSX For front (90+, Chassis Code NA1/NA2) (For front) Aluminum, Spring Rate 24kgf/mm / 1344lbs/in
Upper Mount - OEM"



http://www.sumopower.com/vehicle_id.htm

"HONDA

CHASSIS / VIN MODEL YEAR
NA1 NSX Sept 90 on
BB1/BB4 PRELUDE (H22A Eng) Sept 91-Oct 96
BA5 PRELUDE (B20A Eng) Sept 87 - Sept 91
AP1 S2000 April 99 on
DC5 INTEGRA TYPE-R July 01 on
DC2 INTEGRA TYPE-R Sept 95 - July 01
DC2 INTEGRA May 93 on
DA6 INTEGRA April 89 - Sept 90
EK9 CIVIC TYPE-R Aug 97 - Sept 2000
EK4 CIVIC Sept 95 on
EG6 CIVIC Sept 91 - Aug 95
EG4 CIVIC Sept 91 - Aug 95
EF9 CIVIC Sept 89 - Aug 91
EF8 CRX Sept 89 - Jan 92
EF7 CRX Sept 87 - Aug 91
GD1 / GD2 FIT / JAZZ June 01 on"



This was the most reliable source i found: Tein's Japanese website:
http://www.tein.co.jp/srdamp2e.html

It refers to the products by "model chassis code" in which it specifies which model followed by it's chissis code.

scroll all the way to the bottom and it will read "NSX NA1/NA2"


Can anyone concur that based off at least the Tein website's info, the NSX's chassis codes are NA1 and NA2?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Freshazzburu &raquo;</TD></TR><TR><TD CLASS="quote">This was the most reliable source i found: Tein's Japanese website:
http://www.tein.co.jp/srdamp2e.html

It refers to the products by "model chassis code" in which it specifies which model followed by it's chissis code.</TD></TR></TABLE>

How do they explain the fact that two different models, with different chassis, share the same DC2 code?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Freshazzburu &raquo;</TD></TR><TR><TD CLASS="quote">Can anyone concur that based off at least the Tein website's info, the NSX's chassis codes are NA1 and NA2?</TD></TR></TABLE>

No. As previously noted, the USIM '97-05 chassis included both the NA1 and NA2 drivetrains.

We have examples of different models with different chassis but the same code (DC2), and of models with the same chassis but different codes (NA1/NA2). Which means the code is not the chassis code.

 

i just read this thread...and wtf are we taking about, lol

 

Ok, let's look at the 3rd generation Integra.

As nsxtacy says, both the GS-R (coupe) and ITR (coupe, of course, for US/Canada) have DC2 in their VIN. As stated, these signify the "line, body and engine type"; in this case, Integra line, Coupe body, and 1.8 liter DOHC VTEC engine. People seem to consider "DC2" and "DB8" and such as chassis codes, but a n00bertson will soon tell ya how he was e-beaten upside the head for calling his EH an EG in the Appearance/Cosmetic forum.

The VIN then goes on to signify "body type and transmission type", which in both the GS-R coupe and ITR are assigned the number 3. for 2-door hatchback, 5-speed manual.

So up to this point, both the GS-R and ITR coupes have VIN that start with JH4DC23. Then, it gets even more specific - Vehicle Grade (Series). The GS-R is either an 8 (cloth) or a 9 (leather). The ITR is a 1.

Clear as mud? That's for people who don't have access to the Helms.

So, for the NSX, if the convention of the VIN is the same, NA1 is NSX line, 2 door body (another part of the VIN should state whether the car has a fixed roof or a targa; I'm sure nsxtacy can verify), C30A engine. The line and body stay the same from 1991-2005. The engine changes. The automatic NSX had the C30A engine from '91-'05, so that explains why it remained as NA1.




Modified by 330R at 7:20 PM 7/28/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 330R &raquo;</TD></TR><TR><TD CLASS="quote">The automatic NSX had the C30A engine from '91-'05, so that explains why it remained as NA1. </TD></TR></TABLE>

OK that's what i needed to see. So from the information gathered today, none of the codes we see (eg, dc2, dc4, ap1, ap2, na1, na2, etc) refer to the chassis, correct? or no? These all just specify the model, not the chassis. Can anyone shed insight on this argument?

I like to stay politically correct, so finding out what is what would be nice

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Freshazzburu &raquo;</TD></TR><TR><TD CLASS="quote">
So from the information gathered today, none of the codes we see (eg, dc2, dc4, ap1, ap2, na1, na2, etc) refer to the chassis, correct? or no? These all just specify the model, not the chassis. Can anyone shed insight on this argument?

I like to stay politically correct </TD></TR></TABLE>

I'm not going to make a blanket statement and say that for all Hondas & Acuras, the 4th, 5th, and 6th characters/digits of the VIN are "line, body and engine type", but it's true for the 3rd gen Integra, and I rectum it's the same for the rest of the lineup.

 

Any insight about the above argument nsxtasy?

 

my god i think i should retitle my thread to " NSX CHASSIS CODES "

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Freshazzburu &raquo;</TD></TR><TR><TD CLASS="quote">Any insight about the above argument nsxtasy?</TD></TR></TABLE>

LOL, go ask in the NSX forum. Let's not threadjack any more.