Why, and how, to mod your brake systems!

Gairloch · 04-11-2007, 06:35 PM

Brake system fundamentals. Your brakes DO NOT STOP THE CAR!

http://www.teamscr.com/grmbrakes.html

Slotting, drilling, cryogenically treating your poor rotors. Does it do anything positive?

http://www.teamscr.com/rotors.html

List of other really well written and informative braking and suspension articles from SCR Motorsports: http://www.teamscr.com/techarticles2.html

mr2greasemonkey · 04-11-2007, 09:19 PM

Hey that's pretty good info. I always thought it was your foot that stopped the car, hehe. Course I think your foot is also your boost limiter and traction control, hah.

5FistsoftheNorthStar · 04-17-2007, 03:57 PM

Ooh...good thing I didn't by the slotted drilled rotors.

Davis · 04-17-2007, 07:01 PM

That was a good article packed with good info.

Gairloch · 04-17-2007, 08:24 PM

It's almost a little overwhelming isn't it.

A friend of mine actually put together a spreadsheet to figure out the pounds of clamping force he had at each corner of his RX7 and is using that to balance his time trials car.

Japanese Lotus · 07-10-2007, 09:10 AM

Quote:

Originally Posted by Gairloch

Brake system fundamentals. Your brakes DO NOT STOP THE CAR!

http://www.teamscr.com/grmbrakes.html

Slotting, drilling, cryogenically treating your poor rotors. Does it do anything positive?

http://www.teamscr.com/rotors.html

List of other really well written and informative braking and suspension articles from SCR Motorsports: http://www.teamscr.com/techarticles2.html

Good Info...
I've been getting GRM for years now and have read these articles before. I have reduced as much "compliance" as possible(SS lines, synthetic fluid and master cylinder brace), found a good compound with the ceramic Axxis ULTRA's and employ the slotting. I drive over a 2 lane curvy road almost daily and in the rain for a few months out of the year. The setup I have currently works 100% better than stock with great pedal modulation and no front end lock up which is a typical of most MK1 MR2's.

Thanks again,

Greg aka: Japanese Lotus

rharrack · 09-25-2007, 09:33 AM

Excellent info...Gairloch
But unfortunately I recieved my powerslot front rotors and keeping it stock in the rear. But after reading the article I would reconsider the hype of slotted and cross drilled rotors.
Here is another question i have.....
Will the 1992+ calipers fix our mk1's?? I noticed they have the 2 piston barrel vs. the one piston barrel on the mk1.

welsha · 04-28-2008, 08:54 AM

st185 callipers I believe fit the mk1 as do the st205 4 pots with some mods.

ItzMR2u · 04-28-2008, 11:47 AM

Yeah but slotted and CD's look good and remember, it's not how you feel or in this case how you perform, it's how you look, and in the words of Fernando/Billy Lamas/Crystal, "daaling you loook maavolous!"

Ku-sama · 04-29-2008, 12:10 PM

reading all of those articles straight made me have lines burnt into my retina

Ku-sama · 05-25-2008, 04:06 PM

yet again.... more damn lines... Gairloch, you bastard.

Gairloch · 05-25-2008, 04:44 PM

Quote:

Originally Posted by ItzMR2u

Yeah but slotted and CD's look good and remember, it's not how you feel or in this case how you perform, it's how you look, and in the words of Fernando/Billy Lamas/Crystal, "daaling you loook maavolous!"

Braking is one of those things where I ratchet my attitude of go > show up one more notch. It's a safety issue and I don't think it's a good idea to dick around with it just for appearances sake.

Quote:

Originally Posted by Ku-sama

yet again.... more damn lines... Gairloch, you bastard.

Happy to help

kbrew8991 · 05-25-2008, 05:31 PM

brakes are the first line of safety, you won't hit anything if you can stop in time

YellowJacket · 09-04-2008, 11:37 PM

I have only owned my 85 for a month so I am a newb....

But just ordered a complete set of slotted drilled for my 85 with ceramic pads - found them on Ebay.. $135 for the set of Ultimate rotors and $79 for the ceramic pads, plus shippings...

Cquence Motorsports - High Performance Brake Rotors

The old ones were plain and what came on the car when I got it and rusty and glazed. I dont race and I think these will look nice and do the job also.

Cost was about $240 shipped for front+rear+brake+pads..

Will have them in about a week and let everyone know how they feel and look if interested.

Gairloch · 09-05-2008, 01:26 AM

Did you read the articles?

YellowJacket · 09-05-2008, 06:07 PM

Quote:

Originally Posted by Gairloch

Did you read the articles?

Yeah, sure did... AFTER they were ordered.... although I am not disputing the validity of the articles, and concur they are undoubetedly accurate; I am of the opinion that I have not made a bad decision, just not the BEST decision per status quo. My wallet likes it....

My real reason for posting was only to find out if there was someone who has also made that same decision as I did from this company or any others like them ... and get their opinion. Either way, I will have them on my '85 within 2 weeks and post on my first impressions.

random_tox · 09-05-2008, 06:33 PM

After flogging the MK1 factory brakes in two 14 hour endurance races, I don't see any reason to 'upgrade'. If your wheels expose the calipers, maybe powder-coat them for looks.

04-11-2007, 06:35 PM	#1 (permalink)
Gairloch Dreaming of apexes Join Date: Aug 2005 Location: Minneapolis, MN Posts: 4,426 Thanks: 114 Thanked 219 Times in 192 Posts My Google Map iTrader Rating: (7/100% )	Why, and how, to mod your brake systems! Brake system fundamentals. Your brakes DO NOT STOP THE CAR! http://www.teamscr.com/grmbrakes.html Slotting, drilling, cryogenically treating your poor rotors. Does it do anything positive? http://www.teamscr.com/rotors.html List of other really well written and informative braking and suspension articles from SCR Motorsports: http://www.teamscr.com/techarticles2.html __________________ "Inside the car, the world beyond the driver's immediate horizon ceases to exist. Alone with the solitude of his desire, survival sense numbed by the speed, he's outrun the mediocrity of the outside world, slipped the shackles it tries to clamp on us all. He is running free, chased only by a fear of failure, for failure is to risk ejection into the real world." ~Mark Hughes

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04-11-2007, 09:19 PM	#2 (permalink)
mr2greasemonkey Mines Bigger Join Date: Sep 2005 Location: Portland, OR Posts: 1,170 Thanks: 4 Thanked 39 Times in 26 Posts iTrader Rating: (0/0% )	Hey that's pretty good info. I always thought it was your foot that stopped the car, hehe. Course I think your foot is also your boost limiter and traction control, hah.

04-17-2007, 03:57 PM	#3 (permalink)
5FistsoftheNorthStar The Mighty Gen3 Join Date: Jan 2006 Location: Your basement Posts: 1,016 Thanks: 15 Thanked 8 Times in 8 Posts iTrader Rating: (3/100% )	Ooh...good thing I didn't by the slotted drilled rotors.

04-17-2007, 07:01 PM	#4 (permalink)
Davis Radical Dreamer Join Date: Nov 2006 Location: Long Beach, California Posts: 1,762 Thanks: 78 Thanked 71 Times in 66 Posts My Google Map iTrader Rating: (4/100% )	That was a good article packed with good info.

04-17-2007, 08:24 PM	#5 (permalink)
Gairloch Dreaming of apexes Join Date: Aug 2005 Location: Minneapolis, MN Posts: 4,426 Thanks: 114 Thanked 219 Times in 192 Posts My Google Map iTrader Rating: (7/100% )	It's almost a little overwhelming isn't it. A friend of mine actually put together a spreadsheet to figure out the pounds of clamping force he had at each corner of his RX7 and is using that to balance his time trials car.

09-25-2007, 09:33 AM	#7 (permalink)
rharrack No Skills Join Date: Jun 2007 Location: SATX Posts: 30 Thanks: 2 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Excellent info...Gairloch But unfortunately I recieved my powerslot front rotors and keeping it stock in the rear. But after reading the article I would reconsider the hype of slotted and cross drilled rotors. Here is another question i have..... Will the 1992+ calipers fix our mk1's?? I noticed they have the 2 piston barrel vs. the one piston barrel on the mk1.

04-28-2008, 08:54 AM	#8 (permalink)
welsha No Skills Join Date: Feb 2006 Location: UK Posts: 34 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	st185 callipers I believe fit the mk1 as do the st205 4 pots with some mods.

04-28-2008, 11:47 AM	#9 (permalink)
ItzMR2u No Skills Join Date: Apr 2008 Posts: 28 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (3/100% )	Yeah but slotted and CD's look good and remember, it's not how you feel or in this case how you perform, it's how you look, and in the words of Fernando/Billy Lamas/Crystal, "daaling you loook maavolous!"

04-29-2008, 12:10 PM	#10 (permalink)
Ku-sama Cage Fighter Join Date: Mar 2008 Location: Bowie Maryland Posts: 902 Thanks: 6 Thanked 20 Times in 20 Posts My Google Map iTrader Rating: (2/100% )	reading all of those articles straight made me have lines burnt into my retina

05-25-2008, 04:06 PM	#11 (permalink)
Ku-sama Cage Fighter Join Date: Mar 2008 Location: Bowie Maryland Posts: 902 Thanks: 6 Thanked 20 Times in 20 Posts My Google Map iTrader Rating: (2/100% )	yet again.... more damn lines... Gairloch, you bastard.

05-25-2008, 05:31 PM	#13 (permalink)
kbrew8991 gimme some turns Join Date: Apr 2006 Location: Houston, TX Posts: 1,094 Thanks: 39 Thanked 52 Times in 45 Posts My Google Map iTrader Rating: (1/100% )	brakes are the first line of safety, you won't hit anything if you can stop in time

09-04-2008, 11:37 PM	#14 (permalink)
YellowJacket my 85 owns ME Join Date: Sep 2008 Location: Nashville, TN Posts: 13 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	I have only owned my 85 for a month so I am a newb.... But just ordered a complete set of slotted drilled for my 85 with ceramic pads - found them on Ebay.. $135 for the set of Ultimate rotors and $79 for the ceramic pads, plus shippings... Cquence Motorsports - High Performance Brake Rotors The old ones were plain and what came on the car when I got it and rusty and glazed. I dont race and I think these will look nice and do the job also. Cost was about $240 shipped for front+rear+brake+pads.. Will have them in about a week and let everyone know how they feel and look if interested.

09-05-2008, 01:26 AM	#15 (permalink)
Gairloch Dreaming of apexes Join Date: Aug 2005 Location: Minneapolis, MN Posts: 4,426 Thanks: 114 Thanked 219 Times in 192 Posts My Google Map iTrader Rating: (7/100% )	Did you read the articles?

09-05-2008, 06:33 PM	#17 (permalink)
random_tox Did you call me 'dude'? Join Date: Feb 2008 Location: Ewtah Posts: 61 Thanks: 2 Thanked 0 Times in 0 Posts My Google Map iTrader Rating: (0/0% )	After flogging the MK1 factory brakes in two 14 hour endurance races, I don't see any reason to 'upgrade'. If your wheels expose the calipers, maybe powder-coat them for looks.