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Old 12-14-2015, 01:41 PM   #21
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First gen. 90% sure of that.
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Old 12-29-2015, 11:22 PM   #22
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So technically i could use the 98,99 3.0 cL knuckle,hub,rotors,caliper, and bracket right?
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Old 03-24-2016, 12:13 PM   #23
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Can we get a correction here? Based off my research, '98-'99 CL3.0 have 23mm-thick front rotors, similar if not identical to the Prelude VTEC rotors. '97 models still have 25mm rotors like the '90-'97 Accord wagons and '95-'97 Accord V6, but is also HOR.

Sources: 3.0CL '98spec front Centric C-TEK standard rotor: here
Catalog entries: here

3.0CL '97spec front Centric Premium rotor: here
Catalog: here

Last edited by willbill642; 03-24-2016 at 12:16 PM.
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Old 03-24-2016, 12:31 PM   #24
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When I made this thread it had been a while since I had actually held a '98-'99 3.0CL front knuckle with the rotor and caliper. I based my assumption that the rotor would be 25mm by the fact that '97 and '98 3.0CLs have the same part numbers for front calipers which include caliper brackets. As you may know, the caliper bracket is designed to compliment the thickness of the respective rotor it is paired with. If two cars have the same part number, it made sense that they would be the same. Likewise, the rotor size would also be thicker.

Also, the factory part numbers for the '98-'99 3.0CL rotor and '93-'96 Prelude Si VTEC do no match, indicating some difference there.

The answer will be in whether or not the '98-'99 3.0CL uses a 23T or 25T caliper bracket.

What's more likely to have been the case is that Centric didn't feel like making a rotor that differed very slightly from a rotor they already had that would only be used on a very obscure car.
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Old 03-24-2016, 01:27 PM   #25
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Quote:
Originally Posted by Jarrett View Post
When I made this thread it had been a while since I had actually held a '98-'99 3.0CL front knuckle with the rotor and caliper. I based my assumption that the rotor would be 25mm by the fact that '97 and '98 3.0CLs have the same part numbers for front calipers which include caliper brackets. As you may know, the caliper bracket is designed to compliment the thickness of the respective rotor it is paired with. If two cars have the same part number, it made sense that they would be the same. Likewise, the rotor size would also be thicker.

Also, the factory part numbers for the '98-'99 3.0CL rotor and '93-'96 Prelude Si VTEC do no match, indicating some difference there.

The answer will be in whether or not the '98-'99 3.0CL uses a 23T or 25T caliper bracket.

What's more likely to have been the case is that Centric didn't feel like making a rotor that differed very slightly from a rotor they already had that would only be used on a very obscure car.
So, that was my assumption. However, I have not found anyone selling '98 or '99 spec rotors in a 25mm thickness. Autozone, Advanced Auto Parts, everywhere I try I find ONLY 23mm thick rotors. I want to believe that they had 25mm rotors, but I simply can't find evidence of it. Nobody sells a 25mm thick rotor for the '98-'99 CL3.0.

Oh, here's Brembo's parts catalog when I looked up the 3.0CL '98 front rotor part #:http://brembo.mycarparts.net/products/Brembo-09793220
Even they say 23mm thick.

EDIT: You are right, however. The caliper assembly P/N is the same as the wagon's and V6 accords:
P/N: 45019-SM5-000
honda
acura

I wonder why they are using the same bracket but with a 23mm rotor?

Last edited by willbill642; 03-24-2016 at 01:37 PM.
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Old 03-24-2016, 02:24 PM   #26
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It's probably a 25t bracket with a pad that has more material. As far as I know, all the rotors are 23mm thick.
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Old 03-24-2016, 07:55 PM   #27
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Originally Posted by Chrisnick View Post
It's probably a 25t bracket with a pad that has more material. As far as I know, all the rotors are 23mm thick.
It appears to be a 25T bracket, so maybe there's something about how the brackets are designed that means a larger bracket is not an issue for smaller rotors. I wonder if I can find some diagrams of the bracket designs for 23T, 25T, and 28T, and see what is the big difference between them.
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Old 04-27-2016, 02:45 PM   #28
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Has anyone done an RL 4 pot caliper swap? looks like the brake lines are completely different and don't use a banjo bolt but other then that it looks like using the adaptor kit would bolt right up no issues, is this right? I saw someones member ride thread awhile ago and they had bought the kit and calipers but don't think they ever updated the thread with the install or if they even did it. Does anyone have insight into this?
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Old 04-27-2016, 06:38 PM   #29
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Has anyone done an RL 4 pot caliper swap? looks like the brake lines are completely different and don't use a banjo bolt but other then that it looks like using the adaptor kit would bolt right up no issues, is this right? I saw someones member ride thread awhile ago and they had bought the kit and calipers but don't think they ever updated the thread with the install or if they even did it. Does anyone have insight into this?
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Next was the brakes - 2005-2012 Acura RL Calipers - FatFour Customs Caliper Brackets - ARP extended studs (cuz my wheels wouldnt fit over the calipers) - Centric brand 2005 Nissan 350Z Brembo Edition rotors (redrilled to 4x114.3) - and some other FFC goodies came along with that order.



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Old 04-27-2016, 11:41 PM   #30
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What I've read from multiple sources is that the FatFourCustoms brackets offset the RL Advics caliper just enough so that a 12.8", 30mm-thick 350Z Track (the one with the Brembos) rotor can be used, where as the Fastbrakes brackets can only use the non-Brembo 350Z and Nissan Maxima 12.6" rotors that are 28mm-thick. Seeing as the factory RL rotor is 28mm-thick, I'd likely stick with a setup that allowed the caliper to operate within its usual range. People use them, though.
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Old 04-28-2016, 08:07 AM   #31
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Quote:
Originally Posted by Jarrett View Post
What I've read from multiple sources is that the FatFourCustoms brackets offset the RL Advics caliper just enough so that a 12.8", 30mm-thick 350Z Track (the one with the Brembos) rotor can be used, where as the Fastbrakes brackets can only use the non-Brembo 350Z and Nissan Maxima 12.6" rotors that are 28mm-thick. Seeing as the factory RL rotor is 28mm-thick, I'd likely stick with a setup that allowed the caliper to operate within its usual range. People use them, though.
I would guess the price and options are also better with the 28mm rotors as well. Any one know about the brake lines and how that works for connecting the caliper?
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Old 04-28-2016, 09:50 AM   #32
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It's a regular banjo bolt fitting. You can even use your stock brake line.
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Old 04-28-2016, 12:19 PM   #33
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It's a regular banjo bolt fitting. You can even use your stock brake line.
Thanks for info, the pictures I was looking at of the calipers weren't the best and I wasn't able to tell 100% how the brake line connected, good to know the stock lines work with the banjo bolt setup.
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Old 05-01-2016, 09:48 PM   #34
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I've been running a set of NSX calipers on 3 different cars since 2008 but lately I've been thinking about doing the RL upgrade the only question is wouldn't it change the bias since obviously the RLs are a much larger setup?

They're definitely designed for a much larger vehicle in mind but I always wonder if it actually functions better with a car that's smaller in size.

I think it would make more sense to upgrade the rears as well considering the rear brakes wear out faster than the fronts.

And has anyone here ever seen a car sporting both front and rear NSX calipers?

The only real one I've ever seen was a 4th gen Prelude that had all four corners equipped with them not much detail on how it was done or what he had to do as far as prop valve upgrades as well it was featured in an HT article a couple years back but I don't remember what rear rotors they went with on the car.
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Old 05-02-2016, 12:10 AM   #35
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Johnny (g7kobayashi) has both front and rears installed on both of his cars.

I believe they caused some clearance issues with his FFC rear lower control arms, though.
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Old 05-04-2016, 09:31 PM   #36
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Any ideas on how you can rehost the pictures of his rear setup? I looked thru his MR the links are broken.
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Old 08-17-2016, 08:39 PM   #37
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Anyone have any input for the rear like what rotor caliper I can use to upgrade the rear brakes
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Old 08-17-2016, 09:14 PM   #38
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stock caliper, adapter bracket, Honda element rear rotor
I believe this setup will work for us. You may to google around a bit.
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Old 08-17-2016, 10:59 PM   #39
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Anyone have any input for the rear like what rotor caliper I can use to upgrade the rear brakes
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stock caliper, adapter bracket, Honda element rear rotor
I believe this setup will work for us. You may to google around a bit.
Look at Fastbrakes. They make an adapter kit.

You still utilize the OEM caliper. There no real need for a larger one, unless you want to spend at least $1k on a custom Wilwood setup. Fastbrakes has their whole kit online....it utilizes and adapter bracket, and I believe an '03 Honda Pilot rotor. It's about $300 or so. Or you can get the bracket for $150, and buy your own rotors.
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Old 08-18-2016, 11:33 AM   #40
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Pilot! That's what it is. whoops.
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