Hey guys,, I have a fastbrakes.com brake kit for my civic,, they come with a cross drilled and slotted 11inch rotor upgrade for civic and crx with the 9.5inch rotor/knuckle... I was wondering if anyone know what car these rotors come off of so that I can just go in an autozone or pepboy to get a blank rotor for replacement when my cross drilled and slotted become warped or below spec... the site wants $150 for a pair and I think its a bit expensive.. I rather spend $30-40 a rotor for blanks.. can anyone chime in?

 

Mini Cooper

 

http://www.team-integra.net/forum/19...gs-ls-gsr.html

 

Holy crap!

That's awesome.

Keep in mind, Mini Cooper rotors will not work on DX knuckles Only integra/ex/si knuckles.

I'm on 11.2" Mercury Cougar Rotors atm, with my s2000 calipers on DX knuckles:



As part of a trade for my old engine/trans once I do my swap, I'm getting 11.8" redrilled s2000 rotors, hawk HP+ pads, EX knuckles, and the rear 11" upgrade kit from my buddy, BrakeExpert.



I can't wait.

 

http://www.tamparacing.com/forums/ho...as-civics.html

 

Awesome, my tax refund is ****ed. lol
You aren't worried about that being way overkill?!

The only thing stopping me from doing 11.1/10.3 + ITR calipers is the people say it was too much.

I wish I could just make up my damn mind.

And those Centric's look great! I might have to consider thoughs over brembo.

 

Overkill? Have you seen my build

The brakes won't be much more aggressive than they are now, just a larger rotor for less brake fade mostly. Honestly it's more of an aesthetic upgrade, plus he gets good deals on hawk pads. Filling up the wheel wells was my main objective, haha. When I start road racing next year the extra mass on the brakes will probably be useful.

Mike (BrakeExpert) told me the centrics are solid rotors.

 

Never too much when it comes to braking bro!! Especially when my very very mildly tuned B18/ls is turbocharged and does the quarter consistently at 13.4... You will value your brakes alot especially after one or two hard stops...
Im gonna try and play around with the mini cooper rotors this week and see if my calipers work or not,, I have a set of Acura Legend Calipers and see if they will fit...

 

Keep in mind the Mini cooper rotors upgrade will NOT work on DX knuckles.

 

Yes Sir!!! I have both size Knuckles... Im gonna try the cooper rotors with the 10.3 knuckles thats on my car right now.. dont want to have to do an alignment again.... hahaha.....

 

Lol, true true. But 11'' in the rear, damn

I wonder how the centrics stand up to brembos.

You are right, that is way these damn 9.6's gotta go! lol

 

11.8" front and ~11" rear would give me the exact braking setup an S2k has as far as rotors and calipers go. So it would probably be ideal, actually.


I'm sure the rotors are fine. If they aren't, you're out $50, lol. Duralast rotors are fine too.


EditL BrakeExpert is freaking brilliant, I never thought about this: We're talking about calipers/bigger rotors, and the impact of bigger rotors:

Not only do you experience less brake fade but

 

Where are you talking to him on? I'd like to get ahold of him.

 

PM'd

 

Hmm. I didn't know they had that big of brakes on them.

That is true, only wondering becuase I can get all 4 brembo blanks for ~$122 locally.

 

nice set up..

 

Is this a full S2K swap or just spacing the Civic caliper out to an 11" rotor?

Edit: Just checked, it's a spaced Civic caliper, which makes sense.

Looking at the S2000 for an idea of balance is misleading, the weight distribution is much less forward biased and the caliper pistons are huge, 1.59" to the Civics 1.19". A full S2k swap would have a Civic/Integra spinning out pretty badly with very little brake pressure.

 

The rear would be the Integra caliper spacer out to meet the s2k rear rotor.

I have s2000 brakes, a 1" integra ABS master cylinder, the brakes were amazing for the few weeks I had drums, and they were still amazing after I changed to rear integra discs. I've put 15,000+ miles on this setup, 11+ autocross races, and the brakes are everything and more that I would expect.

The larger front and rear rotors will, as stated early, merely add brake torque as the pad is grabbing the rotor at a faster point farther from the hub. And the added benefit of more mass/less fade.

Simply, I've already got s2000 brakes, and the car stops amazing and has never locked up in an unflattering manner on the autocross course. As a matter of fact I think I've only locked up my front tires two or three since I've had the brakes. Locking up the front brakes in autocross is extremely common. A lot of people were locking theirs up at our first points event this year shaking the cobwebs off.

 

Sorry, didn't explain that very well, I was talking about the "full S2K swap" as in rear discs and calipers, which would be a very bad move with pretty much any front brake setup IMHO. Putting the Civic/Teg caliper on an 11" rotor is fine though, over here in the UK we have a kit putting it out to 11.26" with custom rotors which works well with equivalent 11.8" front rotors.

 

For what it's worth, I know a couple of people running s2000 front brakes, ep3 rear rotors + rsx rear calipers (switched left to right) and they road race and autocross their cars with no issues.

Edit: I should probably mention that BrakeExpert has 01 front NSX brakes, and 92 Rear NSX brakes, 1" MC, LX/DX/EX prop valve and his car stops on a dime. I drove his car last year and it will put your face in the dashboard and not lock up the tires.

http://nsxprime.com/forum/showthread.php?t=101548

 

Yep that's fine, a factory designed system for a front heavy FWD car.

That's interesting, what size rotors are those? Specs I have are 282mm front and rear? He's still running a drum prop?

 

Yes, still running the OE prop valve. He says in the 44 brake setups he's made, (Ferrari, to cadillac, Acura RL, NSX, ITR, S2000 etc) he's never seen the need to upgrade the prop valve. He's never had an issue with the rear brakes locking up. At least not on his configurations, he's aware this is possible but he's always designed the front/rear kits to be complimentary.

The only reason he doesn't recommend the Ep3 rear rotor/rsx caliper upgrade is that the parking brake doesn't work very well and the bleeder is upside down.

 

Hmm, well that further re-enforces my opinion (nay proves it) that the drum prop is seriously under working rear discs if he car run rear NSX brakes with no issues. With a disc prop valve designed for a safe 10% front bias at threshold braking that setup would be downright dangerous.

That rear NSX swap, being as powerful as it is, clearly goes some way to creating a properly balanced system with a drum prop, but is it easier than simply swapping the prop and having the regular Civic/Integra brakes working optimally? Who knows. They look baller for sure though!

Again, the fact you don't need to change the prop converting discs to drums is irrelevant. You only need to change it if you are locking the rear wheels by overworking the rear brakes.

 

You are correct. I've not had any issues with my setups, and Mike claims he's never had any issues with his rears locking up either.

Now, if you kept DX or even EX front civic brakes, and switched to integea rear traling arms and Ep3 rotors + RSX calipers, that might well be a different story.

It ultimately boils down to keeping the front and rear brakes appropriately sized both in rotor and more importantly in piston diameter.

The s2000 caliper has a smaller piston than the ITR, pretty significantly, though the pad is taller and not as wide, but it grips more efficiently than the ITR caliper. So the s2000 has better braking characteristics than the ITR thanks to the more efficient use of a better shaped bad. Also the S2000 calipers weigh 5lbs less than the ITR calipers, which is HUGE.

 

Agreed. Running front biased is fine, just not optimal. Front biased increases stopping distances, front temps and wear, and de-stabilises the car in combined braking and cornering due to a combination of slip angle effects and geometric anti-lift reduction causing unwanted tyre inclination changes.

EP3/S2k brakes are pretty much identical to ITR in terms of PTR (pressure torque ratio),
.686 for the ITR and .670 for the EP3/S2K, the bigger rotors on the S2K allow the discs to run approximately 22% cooler though which makes them a much better choice when coupled with the lighter calipers.

Reason I'm questioning everything is that I've developed a calculator that figures out everything you need to know for designing a brake system. Just trying to find anomalies that disprove it. I'm pretty much excluding drum brakes as they are alien to me, but the prop valves are of a passing interest.