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Old 01-23-2005, 04:37 PM   #1 (permalink)
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NSX caliper swap questions

I'm sorry for asking this, but why is it that only the 91-96 years fit but the 97+ doesn't?

I'm only able to get my hands on the 97+ ones with caliper brackets.
What mods are involved, if any to fit it on a 5th gen.

Should I even use the NSX brackets or just use the vtec ones?

I think the 97+ ones look a little better, so what's exactly involved to make it fit right and can I use AEM big brake rotors with them?

I just need to know EXACTLY what I will be needing and what work is involved to make this fit right and if it's worth it to do so, or should I just wait for the 91-96 calipers to show up.

Please let me know.

Thanks so much!!!
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Old 01-23-2005, 05:55 PM   #2 (permalink)
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I know 91-96 will work for sure. As far as brackets I used the NSX ones that came with my calipers, but you can use either. From what I remember from doing the research the 97+ is they won't bolt to vtec brackets nor will they bolt to the spindle. As far as AEM rotors they might work but I'm pretty sure stock vtec rotors won't work. Even using the 91-96 calipers you'll have to use spacers behind the pads to use stock rotors.

I might be wrong on some of this but I know the only mod to use 91-96 calipers is to use a spacer behind the brake pads.
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Old 01-24-2005, 01:58 AM   #3 (permalink)
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Basically Honda changed something regarding the offset of the 97+ NSX's. If you can't get your hands on a set of the 91-96 caliprs, go for a set of Acura Legend GS's. Which can be had cheap refurbished from almost anywhere.
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Old 01-24-2005, 03:41 AM   #4 (permalink)
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Thanks so much for the info!!!

I really appreciate the help!!!

I guess I'll look around some more for the 91-96 NSX calipers, since the 97+ won't fit the prelude.

Thanks again!

Oh, I wanted to double check if NO SHIMS or WASHERS are needed if you use the VTEC caliper brackets and VTEC rotors with the 91-96 NSX calipers. In other words straight BOLT-ON.

Which brake lines do I use if I did the 5-lug swap and putting on these NSX calipers??? Do I still use the 4th gen brake lines (vtec or non)?

Thanks DOUBLY AGAIN!!!
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Old 01-24-2005, 05:53 AM   #5 (permalink)
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Yes, you'll be able to directly bolt on. Though if you're doing the swap, I'd highly recommend buying some Acura Legend GS rotors to go with the NSX front brake calipers and caliper brackets. It's a much beefier rotor and you already have all the parts short of the rotor itself. It's a cheap investment in contrast to the amount you'll spend on the rest of the system.
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Old 01-25-2005, 07:16 PM   #6 (permalink)
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^^ That's if he does a 5 lug swap since the legen rotors are 5 lug......right?

As far as brake lines just use the one's on your car already or get braided one's. But stock 4th gen is the one's you want.
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Old 01-26-2005, 05:49 PM   #7 (permalink)
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how do you find a set of these for a decent price? I was watching some on ebay with my tax return dollars calculated it the last minute it went from 250 -> 366 + shipping
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Old 01-26-2005, 06:56 PM   #8 (permalink)
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I went to NSXprime.com and watched the forums. There is a suprising number of people parting them out or upgrading their brakes. I think I paid 250 plus shipping.
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Old 04-01-2005, 10:18 PM   #9 (permalink)
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anyone know how to identify 91-96 calipers and differentiate them from 97+?
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Old 04-02-2005, 01:13 PM   #10 (permalink)
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Quote:
Originally Posted by 4thGenReady2Go
anyone know how to identify 91-96 calipers and differentiate them from 97+?
i would like to know that too. but im guessing its just the way they look
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Old 04-02-2005, 03:06 PM   #11 (permalink)
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It's the mounting points on the bracket. The 97+ will not bolt directly onto our bracket. Looks have nothing to do with it, we'd still be able to use it.
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Old 04-02-2005, 03:34 PM   #12 (permalink)
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Quote:
Originally Posted by TimeRacer
It's the mounting points on the bracket. The 97+ will not bolt directly onto our bracket. Looks have nothing to do with it, we'd still be able to use it.
I don't think he meant it that way, I think (or hope, rather) that he suggested you could tell the difference between the two based on appearance. If there is any way to tell them apart without having to try them on for fitment, I'm curious.
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Old 04-03-2005, 03:33 AM   #13 (permalink)
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ok, here's the deal:

91-96 calipers have 36mm and 40mm pistons, 97+ have 34mm and 40mm pistons (yes, the smaller one is smaller than the smaller one on the older caliper, don't quesion this and make me say 'smaller' again)

The bracket on the 97+ is different, designed to offset the caliper farther out to accomodate the larger 97+ rotor. You can use a 91-96 bracket with a 97+ caliper, no problems whatsoever. A 97+ caliper is also easily identified by the bracket, which is larger (easily visible from back of caliper) than the 91-96 caliper, as shown if you click on the link below. The caliper circled in red is a 97+ caliper.



Once again, a 97+ caliper can be used, you'll just need the bracket from a 91-96 caliper.
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Last edited by 4thGenReady2Go; 04-03-2005 at 03:36 AM.
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Old 04-05-2005, 10:18 AM   #14 (permalink)
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So, the 91-96 calipers will bolt to the vtec brackets. Is a spacer needed behind the brake pads for 91-96 or just the 97+?

Can Acura Legend GS rotors be purchased from an Acura Dealership?
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Old 04-05-2005, 11:57 AM   #15 (permalink)
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Yes, actually, if you're going to be using your Prelude brackets, then any NSX caliper can be used, it's just people have said a few NSX caliper threads here that even the 91-96 NSX bracket worked with their car, so in that case if you keep the bracket from the NSX, then it's necessary to say that a 97+ NSX caliper + bracket will not work. As far as the spacer/thicker shim, I'm not entirely sure if it's needed or not. I read the archived Hondaprelude.com tutorial which mentioned needing a 5mm shim, and I've been meaning to check around more on PO and maybe start a thread about it, but if it's needed, it'll be needed for both calipers (91-96 or 97+), and if not, neither. The only difference between the two (keeping in mind we're talking about just the caliper, not he brackets they come with, is the 97+ has a 34mm small piston, and the 91-96 has a 36mm small piston.

Yes, you should be able to get Legend rotors from an Acura dealer, but it might be cheaper to get a set of Brembo blanks made for the Legend GS.
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