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Rear big brake upgrade w/pics

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Old May 5, 2009 | 08:57 PM
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Default Rear big brake upgrade w/pics

Finally got my rear's to match the front's. This is the first kit sold for the ITR. I know many of you may think it's a waste but that's fine. I'm not asking your permission, just wanted to show off my latest mod.
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Old May 5, 2009 | 09:01 PM
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Default Re: Rear big brake upgrade w/pics

What do you have on the front?

Is the rear kit designed specifically to complement a front kit?
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Old May 5, 2009 | 09:03 PM
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Default Re: Rear big brake upgrade w/pics

Let me know how it feels at the track
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Old May 5, 2009 | 09:17 PM
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Default Re: Rear big brake upgrade w/pics

I have 12.19" fronty with 6 piston calipers on the front.

Don't plan to take it to the track for awhile. I want to but more about show right now.
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Old May 5, 2009 | 09:30 PM
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Default Re: Rear big brake upgrade w/pics

that's pretty sweet!!
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Old May 5, 2009 | 10:00 PM
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Default Re: Rear big brake upgrade w/pics

Almost a useless thread so far.
size of wheel, offset that clears, modifications to the car, what setup front, what setup rear, what pads can be used, brake lines, what part numbers, what kit... .... ?
Simply looks like the rear will be overpowered, hell the stock setup and strong pads can lock up

If you post again, please include some basic details. Inquiring minds want to know.
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Old May 5, 2009 | 10:07 PM
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Default Re: Rear big brake upgrade w/pics

nice!!!! if i wasn't selling my R that be my next upgrade!!
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Old May 5, 2009 | 10:08 PM
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Default Re: Rear big brake upgrade w/pics

It is for show, does that stuff really matter? =P
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Old May 5, 2009 | 11:13 PM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by redGSRguy
It is for show, does that stuff really matter? =P
even if it was for track the rear wouldn't

if you're going for show, it looks good i guess. hell if i had the money i probably would.
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Old May 6, 2009 | 12:57 AM
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Default Re: Rear big brake upgrade w/pics

did this kit eliminate your ebrake functions?
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Old May 6, 2009 | 01:15 AM
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Default Re: Rear big brake upgrade w/pics

looks good!
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Old May 6, 2009 | 05:49 AM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by verticle
even if it was for track the rear wouldn't [matter].
It's tricky. Maybe on an autocross course with an FF car that you are comfortable throwing around the cones, you don't really care too much what the rear brakes are doing.

On a road course with a decent straight, however, it's probably a good idea to make sure that the rear tyres are doing enough of the braking to keep the overall attitude of the car the same when you're going into threshold braking for, what, maybe 145 miles per hour.

You're going to generally want the rears to do proportionally the same amount of work that they would've done on a stock car.

That's why I was interested in knowing that the rears were designed to work with the front kit.

I'm assuming this car has stock ABS intact?
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Old May 6, 2009 | 06:17 AM
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Default Re: Rear big brake upgrade w/pics

I would assume, brake balance was never put into thought....
Looks good though.
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Old May 6, 2009 | 06:24 AM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by beat
I would assume, brake balance was never put into thought...
Ya never know. Looks like the same people put both kits together.

I just want to hear that they put the kits together with the DC2 ITR and DC2 ITR ABS in mind.
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Old May 6, 2009 | 06:29 AM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by George Knighton
It's tricky. Maybe on an autocross course with an FF car that you are comfortable throwing around the cones, you don't really care too much what the rear brakes are doing.
Even in an autocross environment, it's going to matter. I struggled with a rear-biased brake balance at several events in 2007 until I was able to correct the issue.
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Old May 6, 2009 | 07:04 AM
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Default Re: Rear big brake upgrade w/pics

That set up looks scary to me. The last thing I want is a rear wheel locking up harder than my fronts. I could see a brake bias controller being a must with this. But since its a show kaa....meh.
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Old May 6, 2009 | 07:15 AM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by Targa250R
Even in an autocross environment, it's going to matter. I struggled with a rear-biased brake balance at several events in 2007 until I was able to correct the issue.
Thank you. I do not know very much about autocrossing, and I was simply imagining where the other poster was coming from saying that the rear brakes didn't matter.

They don't matter as much as the front, but they do matter.

Originally Posted by get RIGHT
That set up looks scary to me. The last thing I want is a rear wheel locking up harder than my fronts. I could see a brake bias controller being a must with this. But since its a show kaa....meh.
I dunno. Most of us would probably want to keep the factory ABS, even on a race car or dedicated track car.

I've kept the ABS on my car, which is seldom on the public roads any more, and I have appreciated having the ABS on occasion, especially when the pavement changes from low moisture to high moisture in a matter of a few minutes.

I'm persisting in the thread because I'd love to hear that some manufacturer has figured out a way to improve the braking performance of the factory setup on the DC2 ITR w/factory ABS while preserving the car's overall attitude and balance with an N1 suspension.

It's so easy to get up around 250 Dynojet HP on DC2 ITR, and it's so easy to get up in the 140-150 mph range before threshold braking. I think that more than a few of us would like to know that a well balanced braking improvement is available.

The factory DC2 ITR brake system is great, but I think a lot of us would buy into something that gave us a little bit more.
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Old May 6, 2009 | 07:15 AM
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Default Re: Rear big brake upgrade w/pics

i thought there *might* have actually been some tech here...I should have known better. congrats on your latest mod, good luck at your next show, I hope you bring home the gold.
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Old May 6, 2009 | 07:26 AM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by George Knighton
Thank you. I do not know very much about autocrossing, and I was simply imagining where the other poster was coming from saying that the rear brakes didn't matter.

They don't matter as much as the front, but they do matter.


I dunno. Most of us would probably want to keep the factory ABS, even on a race car or dedicated track car.

I've kept the ABS on my car, which is seldom on the public roads any more, and I have appreciated having the ABS on occasion, especially when the pavement changes from low moisture to high moisture in a matter of a few minutes.
I completely agree. I wouldn't want to be without my ABS. I use it constantly for effective braking and turn in whether its's autoX or HPDE.
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Old May 6, 2009 | 07:37 AM
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Default Re: Rear big brake upgrade w/pics

Wow, so many different reactions and questions, where to begin?

First, thanks for all the good comments.

It's not a show car, but I do like it to look good going down the street and at the meets that I'll attend.

The front is 12.19" 6 piston and the rear is 12.19" single piston. Wilwood pads and steel braided brake lines on all 4 corners.

I'm running 16x7 Rota's w/+45 offset. Had to motify rear caliper to clear the rims. 17" would fit perfect.

Wilwood has done testing with different caliper and rotor combo's for ITR's and other Honda's but that's above my understanding and as long as I can stop, they're good for me.

Just wanted to show you an alternitive to those high priced kit's.

Thanks for looking.
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Old May 6, 2009 | 07:40 AM
  #21  
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Default Re: Rear big brake upgrade w/pics

Also, Yes it retains the park brake. They supply the needed cable or you can figure out how to use the OEM with little modification.
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Old May 6, 2009 | 08:09 AM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by n2mports
Wilwood has done testing with different caliper and rotor combo's for ITR's and other Honda's but that's above my understanding and as long as I can stop, they're good for me.
So theoretically these coould be worse then the stock ITR system.
Personally, I'd rather have the ugly stock system that works nearly perfect then some show crap that could work right. My life and the others around me matter more then what people think of my brakes.
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Old May 6, 2009 | 08:52 AM
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Default Re: Rear big brake upgrade w/pics

Originally Posted by RockinaRHard
So theoretically these coould be worse then the stock ITR system.
Personally, I'd rather have the ugly stock system that works nearly perfect then some show crap that could work right. My life and the others around me matter more then what people think of my brakes.
The lack of ready availability of data regarding any improved performance related to allegedly balanced four wheel brake upgrades to the DC2 ITR is precisely why people who appear to be otherwise intelligent and fiscally responsible racers and track drivers will spend $1200 - $1400 for the Spoon callipers.

They just can't find anything else that's a readily documented improvement.
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Old May 6, 2009 | 09:53 AM
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Default Re: Rear big brake upgrade w/pics

Well... Most ppl that actually upgrade brake kits dont use it for the performance anyways....
Ive had Spoon calipers in my DC2, not too much different from stock...

Not sure if the bit rear brakes will throw off the cars brake balance, but there is a chance... On my Exige, I once tried having a more powerful pad on the rear than on the front, and the car would oversteer into every corner as I trail brake and turn in.... Changed out the pads and the car was back to normal... Brakes being too powerful in the back would cause the rears to lock up easy, so its just like pulling the E brake ...
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Old May 6, 2009 | 12:30 PM
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Default Re: Rear big brake upgrade w/pics

It's hard for me to believe that my single piston rear caliper will have as much braking as my 6 piston front. Although they both have 12.19" rotors, they are not eqaul. Aren't larger rotors more for reducing heat which in turn reduce's brake fade and failure? I can see it being an issue if I put the same 6 piston caliper on the rear, but come on!
Maybe one day we can have some kind of braking contest to see which is actually better.
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