I know there are people who have done (NA1) '96-'96 caliper conversions with 15" wheels, but has anyone done NA2 conversions with 16+" wheels....is it possible?


here are pics of the size differences. You cansee that the NA2's (gold calipers) are a bit taller hence requiring larger diameter rotors...


NA1 Calipers (edited pics...thanks Keng )


NA2 Calipers



Modified by MiraiZ at 4:29 PM 1/2/2004

 

Mirai, NA1 calipers look like this:



I remember reading on one of the Yahoo JPN Auctions that the NA2 calipers would work on the DC2 with 16 in rims.

 

The calipers and all should bolt up without a problem.

The issue is finding a rotor that will fit. THe stock NA2 rotor is a 298mm rotor with a 28mm thickness. The only solution I can think of is to get a custom rotor and hat combo. But, the closest thing I have been able to find is a 298.5mm (11.75") rotor with a 31.8 (1.25") thickness. I'm not sure if that will fit in the caliper...

--
George

 

those would forsure look/perform awesome. But why did you say NS-X? Not flaming im just curious.

 

NSX is often written NS-X in Japan....same CR-X, CR-V, Si-R, etc....it just looks cooler ..I guess..LOL

As for the rotors, wouldn't the NS-X NA2 rotors work...the mounting bracket (above pic) on both the NA1 and NA2 calipers look the same, but since the rotor will be obiviously larger, I wonder if the will be fitment issues..

Strangely enough, the NA2 calipers are $35 cheaper than the NA1's...

 

What about using Legend or Prelude rotors? or is that what you do w/the NA1 setup?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DsR &raquo;</TD></TR><TR><TD CLASS="quote">What about using Legend or Prelude rotors? or is that what you do w/the NA1 setup?</TD></TR></TABLE>

That the NA1 setup, designed to work with 15" wheels as well

 

so why did we eliminate using the NA2 caliper? size?

 

NA2's are for 16" or 17" wheels...most USDM ITR owners prefer to keep their 15" setup.

There also may be an offset issue...although I doubt it...

an NA2 setup would be a true upgrade since you're also getting a larger rotor. Larger rotors means more stopping power....NA1 just gives you another piston, which is better for less fade, but not a significant improvement from the OEM ITR brakes

 

i know of a set of 03 nsx calipers that MIGHT be for sell if someone is interested....
a friend of mine just upgraded his brakes on his nsx and might sell his calipers.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hibbs &raquo;</TD></TR><TR><TD CLASS="quote">i know of a set of 03 nsx calipers that MIGHT be for sell if someone is interested....
a friend of mine just upgraded his brakes on his nsx and might sell his calipers.</TD></TR></TABLE>

we gotta figure out if they fit first, and if so how much work is involved ....

 

nice well if you find out i may have you a set.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MiraiZ &raquo;</TD></TR><TR><TD CLASS="quote">
As for the rotors, wouldn't the NS-X NA2 rotors work...the mounting bracket (above pic) on both the NA1 and NA2 calipers look the same, but since the rotor will be obiviously larger, I wonder if the will be fitment issues..
</TD></TR></TABLE>

The NA2 rotors can't be used because the rotor offset is not the same as the DC2. It is concieveable that you shim the caliper out or use stand offs, but that just sounds like a sketchy proposition. Real sketchy. Also, if you do space the caliper off the knuckle that far, you do run the risk of requiring the use of wheel spacers because your spokes will no longer clear the calipers.

Like I said before, custom rotors may be the only way to go on this endeavour.

For the NA1 set up, you do use the Legend GS rotors. Or you can use the ITR or Prelude rotors. Most people who did this mod went with the thicker Legend rotors for more mass for better thermal stability.

--
George

 

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

The NA2 rotors can't be used because the rotor offset is not the same as the DC2. It is concieveable that you shim the caliper out or use stand offs, but that just sounds like a sketchy proposition. Real sketchy. Also, if you do space the caliper off the knuckle that far, you do run the risk of requiring the use of wheel spacers because your spokes will no longer clear the calipers.

Like I said before, custom rotors may be the only way to go on this endeavour.

For the NA1 set up, you do use the Legend GS rotors. Or you can use the ITR or Prelude rotors. Most people who did this mod went with the thicker Legend rotors for more mass for better thermal stability.

--
George</TD></TR></TABLE>

Thanks...I was kind of wondering about the offset too...but I heard that even with the na1 setup, you do have to use washers to throw the calipers out a bit, unless you're recycling the ITR brackets.

This guy changed nothing but the cartridges on his NA1 setup (kept the ITR's OEM rotors and brackets):



I am in an NSX forum in Japan and reading some guys article about how he did his NA1 to NA2 conversion on his NSX. I am assume the process will be similar if not the same, but he doesn't get too detailed about it...there are more guys who do the NA2 conversion on Accords with 16" wheels.

This is an NA2 conversion on an Accord with 16" wheels +45 offset:

 

The washers required to get the NA1 to work with teh DC2 is like 1/5 of what it would probably take to get the NA2 calipers to work using the NA2 rotors.

The NA1 to NA2 modification on a NSX is almost brainless. Everything is plug and pray, swap the rotors, swap the calipers...

Now, the Accord mod is interesting. Is this the Accord Type R the conversion was performed on? If so, you may have found the missing 1/2 of your NA2 conversion endeavour. Question to ask is: "What rotor is used on that Accord in that NA2 brake conversion?" If the answer is the stock rotor, you know what to do....

I've been researching brake upgrades and personally, the NA2 and the S2k conversions are probably the brake upgrades to get for those that want a more consistent braking performance and OEM reliability. They probably won't make you stop any faster, or save any weight, or have any bling, but they will be reliable and give you consistent braking during those track days. With proper ducting, they should be just about as bullet proof as they get.

--
George

 

This particular car is the Euro R (Type R) pictured below, but there are some who have done the conversion on an Accord Si-R

 

Thank you MiraiZ...you've provided the final key in my NA2 conversion quest.

--
George

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by geometro &raquo;</TD></TR><TR><TD CLASS="quote">Thank you MiraiZ...you've provided the final key in my NA2 conversion quest.

--
George</TD></TR></TABLE>

hrm.. so basically you can run the NA2 caliper w/Accord R rotors and 16" wheels?

 

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

hrm.. so basically you can run the NA2 caliper w/Accord R rotors and 16" wheels?</TD></TR></TABLE>

still don't know if that'll solve the offset issue though

 

Thanks for all your input Geometro!!

My only last concern is figuring out if the mounting points for the caliper will line up with the oem points on an ITR. I will have no problems finding rotors for the CL1 (Accord Euro R).

 

I know the answer to this. It's because I own a Euro R heheh

It's the TSX rotor with the center bore enlarged.

I am fitting the 12" EuroR/TSX brakes onto my 5 lug civic and I have discovered this. I'm 99% sure the TSX/Euro R uses that same caliper braket as the NA2 NSX.

I'm writing a how to page soon with all the pics & such, but here's a teaser. The larger bore is my Euro R rotor, the smaller - a TSX ;-).

(Pic coming . . . )

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jeff652 &raquo;</TD></TR><TR><TD CLASS="quote">I know the answer to this. It's because I own a Euro R heheh

It's the TSX rotor with the center bore enlarged.

I am fitting the 12" EuroR/TSX brakes onto my 5 lug civic and I have discovered this. I'm 99% sure the TSX/Euro R uses that same caliper braket as the NA2 NSX.

I'm writing a how to page soon with all the pics & such, but here's a teaser. The larger bore is my Euro R rotor, the smaller - a TSX ;-).

(Pic coming . . . )</TD></TR></TABLE>

Excellent...gotta love H-T!! Thanks for the input!!

 

DAMN you guys a sick!...lets see some pics when you get this done!...-Roger

 

I was kinda vague, please allow me to clarify. If your lucky enough to be in Japan (Miraz), you can get the Euro R rotors, if not, then the TSX rotors with the center bore enlarged are the way to go.

Based on the fact that the above Euro R owner simpy bolted the NA2 NSX calipers onto his car we can safely assume they use the same caliper bracket as the Euro R.

It is importnat to note that you WILL have to space the caliper out approx 1-2mm in order for it to be propery centered over the rotor. I have already mocked up the 95 Legend calipers on the Euro R caliper brackets (they match perfect) over the Euro R rotors and the offset is wrong by the above mentioned.

I will be manufacturing high quality oversized precision washer/spacers that will make this work. I suspect the longer NSX caliper bolts will be required also. I will make extras to sell.

For those in the USA that want to do this, the TSX front brakes are the way to go. I know FOR SURE the front caliper is the same (euro r & TSX), I just need to verify the caliper brackets and the same. Logically they are, since the TSX and 6th gen accord have the same suspension, but I will vefiy 100% and let you guys know . . .

:-)
Jeff

 

but the question is will this have more/better stopping capibility as a aftermarket 4 pot, up grade?
what is the cost difference?
interested to know