I want to upgrade my rotors for my Z32 N/A.

Do drilled and/or slotted really stop better?

Also, I think they will look better through my 18" wheels.

Please offer advice, recommendations and comments too. Pros and Cons.

I'll do SS brake lines while I am at it, but will keep the stock calipers...it's just an NA.

_________________
Keith Hultmark
2009 370Z Touring - Sold (5 years owned)
1993 300ZX - Sold (5 years owned)
1976 Porsche 912E. #163 of 2200 - SOLD (3 years owned)
2018 BMW 330i GT xdrive daily driver
2004 BMW Z4 3.0i ….it is a Z

Anytime I can dream of improvements to a Z car on somebody else's money, I vote to go to the max.

Slotted and drilled rotors cool better, reduce unsprung weight, and look cool. The cost is the only setback, and if you're paying, I zee no problem!

i have drilled rotors and they feel really nice when applying the breaks. i don't think you're ever going to get the full benefit of drilled and slotted due to the fact that you're never going to come to a stop from 200 miles.

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bigflippa_ny
1990 Z32 N/A

Hahaha! Don't count on that!!

I just happen to speak with Bill Moreau from the ZCCNE tonight...He sent me a link to a site where he bought a kit woth drilled and slotted rotors and ceramic pads for his Z32...

Parts have been ordered.

_________________
Keith Hultmark
2009 370Z Touring - Sold (5 years owned)
1993 300ZX - Sold (5 years owned)
1976 Porsche 912E. #163 of 2200 - SOLD (3 years owned)
2018 BMW 330i GT xdrive daily driver
2004 BMW Z4 3.0i ….it is a Z

You certainly work quick Keith!!

_________________
Phil
1981 280zxt - Now in the care my son!
2014 370Z Sports Touring Roadster

And now Keith will be able to do a wheelie when stopping!
~Rick~

_________________
All Z Best,.......Kathy & Rick

1969 Z.CAR (#00013 10/69) 8/30/76
1969 ITSA.Z (#00171 11/69) 8/24/73
1970 OLD.Z (#06289 6/70) original owner
1971 510 2dr since 12/31/75
1969 1600 rdstr (our 160-Z)
1971 (#19851 1/71) sold
1975 75.Z (#01343 1/75)

Kieth,

I am glad you got the link.

I think the zinc plated, drilled and slotted rotors with the Evolution Ceramic pads are a great set up for the street.

I love the way mine perform!

ZZZZYA

_________________
1978 280Z
1991 300ZX
1972 240Z ( Restoring)
1976 280Z ( My First Z, now parts car)

Just for future notice, if you plan to do lots of track days...stay away from slotted rotors. They normally develop cracks at the slots due to the heating and cooling of the rotor during use.

_________________
Clive Bogle President - New York Z Car Club - NYZCC.COM
1971 240Z - LS1/T56
1974 260Z-L30
1976 Fairlady Z

Never knew that.....

No track/autocross for me, but that info is good to know. I am all show and no go being an N/A....but will always enjoy spirited drives on the back roads of CT.

_________________
Keith Hultmark
2009 370Z Touring - Sold (5 years owned)
1993 300ZX - Sold (5 years owned)
1976 Porsche 912E. #163 of 2200 - SOLD (3 years owned)
2018 BMW 330i GT xdrive daily driver
2004 BMW Z4 3.0i ….it is a Z

Keith,
Does that mean I stop looking for the receipt for my drilled and slotted rotors?

Ten-four on the spirited drives! I like the way you phrased that.
(Assuming you didn't mean the bottled type of spirits)
~Rick~

There are no cup holders in a Z32

_________________
Keith Hultmark
2009 370Z Touring - Sold (5 years owned)
1993 300ZX - Sold (5 years owned)
1976 Porsche 912E. #163 of 2200 - SOLD (3 years owned)
2018 BMW 330i GT xdrive daily driver
2004 BMW Z4 3.0i ….it is a Z

i hate to say this...I'm going to get flamed and prolly burned...

Drilled and slotted brake disks are a hoax. don't buy them.


No proven facts are available for any of these products for normal street driven cars. Race cars are different...only because most race cars have upgraded master cylinders, shorter throw MC's, stainless steel flexible fluid lines, ceramic pads, etc....etc...etc...


vent's on disks were added in the 80's to promote cooling...good.

slot's were added in the in the 90's to help promote pad gassing....

drilled holes were also in the 80-90's...but for the cool looking effect....

drilled, slotted, and vented disk rotors were just the newest thing to happen to the racing market...if you have a race car.....it's good. If you have a normal car that still can't hit 130 mph...then it's not a race car. Ebay, forums, and the people that own shops that upgrade brakes because the lame slo-mo customer wants the newest gadget to add performance to his ride is the blame for the new hype.


Bring it back to reality now..... Can someone please post a brake disk that is drilled, slotted, and completely vented that is on the market for a/and really used heavy hauler like a truck that weighs over 20 tons that needs to stop constantly in New York traffic? None exist. Why?

Well..truck tires are not as sticky as car tires?.....nope.

Well..truck brakes don't need extreme power that my race car needs?....nope

Well truck brakes are still stuck in the drum/shoes era...and there is no market for aftermarket upgrades....nope....

Common sense guys....


sure..race cars have jumped leaps and bounds on the new technology from newer set-ups....it's been proved....

But when you drop back down to basic physics...they declined in the real up grades.




Why... Friction!

Drums and shoes are actually better if they can be made to work right...75-85% frictional area covered... as to pads only 15-20%

drill a hole...remove a frictional surface...
groove a slot... remove a frictional surface....
and vent's...your keeping the surface area...and inducing better cooling....so sealed vented rotors are good....
But Mass, temp's, area, weight, gas'ing, tire grip, gravity, surface conditions,......etc....a long list a physics major could spend days on......


Drilling and slotting came about in the 80's and 90's due to the compounds of the pads...the years may be off... I'm not an expert...but the car industry hyped about the disk brakes as being better and another part of the industry pushed for just better pads... The old compounds of the pads just built up too much heat, and had no place to gas out, and the heat built up more...causing a weaker brake system... so some idiots decided to drill holes in the rotors, and another set of idiots went for the slicing of the rotors to make a slot.

A different set of engineers came up with better pads.... that didn't need to be gas-vented.... hello ceramic and composite pads.

well...if we use the same pad material in trucks...with drums...what happens? better stopping ability....

From this day forward...trucks will never have disk brakes or rotors...... ever seen a disk brake on a truck.... I wonder why?

But fancy race cars have them....


and the public is weened on having them on everything....



rubber baby buggy's, and mopeds have transfuzed towards the trend because they want to be safe....but they aren't...

Friction requires two things....force applied, and surface area. Drill a hole, or take an inch of friction area off a disk.....to help vent the expelled gasses from the 1950's pads... and your good... But hello...those pads are not sold any more due to the fact that they had asbestos...and the gases don't need to be expelled as much they needed to be to have the same performance.


The best stopping force for any car is it's TIRE!!!



This topic will be pounded on by everyone.....

but for the cliff notes....


Today's disks only need a decent ceramic pad to be just as good as possible.... race cars that are track dependent do need more....

And your brakes will only work as long as you have a real tire on your car.

_________________


Also Known As Clayton Pace