Right the zed need new fronts its shocking....

 

First if only doing the front should i go with GTR Brembos? Or still go EVO Brembos???

 

Also am i right that the GTR Brembo's are straight bolt on????

What disks are used with them???? standard or do they use larger ones???

 

With out sounding like a dumb ass.... there GTR R33 calipers???

 

Any extra help and advice like brake line changes or know issues let me know.

 

thanks

 

Antony

The GTR brembo's are straight bolt on. You want either R33 or R34. Note that both are the same, but the R34 caliper uses a larger bolt size, so you have to drill the holes in the stock hubs a little larger to fit, but a straightforward job.

 

They use larger discs - 324x32mm vs the stock 280x30mm

 

The Evo setup uses even larger calipers, but you need to have a bracket fabricated to mount them.

 

The cheapest option ofcourse it to have your stock calipers refurbed. Fit braided brake lines, Better Brake pads and Flush and replace your brake fluid. The stock brake setup when working correctly is not bad. Bigger brakes aid in Heat dissaption to reduce brake fade and require less pedal effort but they wont actually improve stopping distances over a properly working stock setup on the road.

Edited April 24, 201015 yr by Yowser

There is alot of ??????????????? in there matey?????

they wont actually improve stopping distances over a properly working stock setup on the road.

 

I disagree.

 

Al.

I disagree.

 

Al.

 

Brakes dont stop a car. Tyres do.

 

Stock Brakes will lock the wheels (kick in the ABS) at road legal speeds. Bigger brakes will do the same but with less pedal effort......the advantage is that they will allow you to do it over and over again.

As above ^^. Stock brakes loose 'feel' over time, but they still stop pretty well. I took a friend out in my Z last week. Did a spirited launch and then hard on the anchors. He was blown away by how well it braked....and mine aren't even refurbed. They do lack 'feel' though, but I am sure with a set of braided lines and refurbed calipers, they'll feel more positive. No problem with stopping distance in 'em though!

I think you all need to get some evo`s :biggrin:

I think you all need to get some evo`s :biggrin:

 

You took the words from me matey!!!!

 

Al.

Brakes dont stop a car. Tyres do.

 

So, if you had no brake set up...... the tyres would stop you???? lol

My new z has stock brakes, my scrapped z had evo brakes, buy it some evo calipers please :)

And I do belive tyres are the most important thing on any car as they are the only part that touch the road!

I believe that the stock braking setup is more than sufficient for most peoples needs unless the car is being tracked.

 

Most people have not experienced the stock system at its best and aren't aware how good it can be if all the parts are working as they should.

So, if you had no brake set up...... the tyres would stop you???? lol

 

lol, What that means is that Maximum braking is achieved at the point just before a tyre breaks traction.

 

In a single stop at legal speeds, braking distance is pretty much entirely dependent on the traction available between the tyres and road surface , it is not to do with the Brake Torque.

 

A larger brake setup can actually increases braking distance, becuase brake balance is usually affected, even if you replace rears too.

 

Larger brakes come into their own on the Track. Where you require repeated high speed hard braking performance. Stock brakes are unable to deal with the high thermal energy demands in repeated hard stops and performance decreases - they overheat basically

 

Bigger brakers also "feel" better - higher braking torque from a Larger disc radius and larger pistons will give a stronger initial bite and create more clamping force per given pedal pressure - You have to press less to brake as hard - but thats not braking distance.

Edited April 25, 201015 yr by Yowser

1 hard brake from above legal speeds will warp the standard front disc due to the standard caliper not able to dissipate the dry friction heat,(static friction and kinetic friction) i have done this many times. A caliper with a better co-efficient heat value will not let this happen., i.e. brembo calipers (larger).

Standard 300 brakes were developed in the early 90's and remianed that way for the course of the 300zx. My opinion, upgrade!!

 

 

Al.

Edited April 25, 201015 yr by AlanZ

1 hard brake from above legal speeds will warp the standard front disc due to the standard caliper not able to dissipate the dry friction heat,(static friction and kinetic friction) i have done this many times. A caliper with a better co-efficient heat value will not let this happen., i.e. brembo calipers (larger).

 

Al.

 

Your right, thats why I talked about legal speeds........at very high speed, there is a much higher kinetic to thermal conversion demand and larger brakes take advantage. Nissan fitted Iron calipers on the Euro models to deal with this, while the Import had the lighter alloy calipers until later years.

 

For the road, a properly working stock brakes is a good setup. For the track, bigger brakes are pretty much a necessity.

 

 

many will be suprised by this :

 

Nissan 300zx Stock braking distance 60-0mph = 116ft

 

Most modern family cars are more like 130ft

the best high performance modern Sports cars are typically 110-120ft.

Edited April 25, 201015 yr by Yowser

the best high performance modern Sports cars are typically 110-120ft.

 

Porsche Boxter: 103ft 280bhp

Porsche GT2 : 96ft 520bhp

 

And these are not the best high performance modern sports cars.

 

Al.

...

Porsche Boxter: 103ft 280bhp

Porsche GT2 : 96ft 520bhp

 

And these are not the best high performance modern sports cars.

 

Al.

Just looked up the Porsche gt2 and found figures from 110 to 117ft

Boxser showing as 121ft

 

anyway doesn't matter , their brake distance is not becuase of the brakes, its traction.

Edited April 25, 201015 yr by Yowser

The American auto magazine Motor Trend recently tested a 2008 Porsche 911 GT2 0-60 mph at 3.3 seconds[4], and 11.3 seconds at 129.1 mph (207.8 km/h) for the quarter mile. The GT2 also recorded a braking distance from 60 mph (97 km/h) to 0 of 98 feet (30 m) and recorded 1.10g lateral grip.

 

From wiki

we could exchange links to different figures all day, found loads ..... (btw, never use wiki for reference)

 

its still Irrelevent.

We also must throw praise at the Porsche's perfect balance, its tight chassis and its awesome interaction with its driver. The Boxster's steering lives and breathes, its throttle response is skin tight, and its brakes are the best binders we've ever tested. Fade-free, great pedal action and a 60-mph-to-0 stopping distance of 105 feet.

 

From Edmunds Inside Line

Not irrelevent, just correct facts for people to know matey :kiss:

I've just googled dozens of websites that say its much higher, doesn't matter though. Its braking distance is due to its traction, not its actual brake setup.

Big brakes=less distance :biggrin:

Better traction=less distance :p

 

..and traction is affected by so many things - The actual tyres (inc size), suspension geometry, weight, weight distribution, weight transfer, aerodynamics.....

I tell you what.......you get the tyres and i will get the brakes......deal? :cool3:

LOL Deal

 

btw - Im all for Big brake kits....Im just adovating the use of properly working stock brakes for a road going Z. There are many misconceptions about Brake kits.

 

Look at all the GTR and EVO setups readily available out there for Z owners to upgrade to, becuase GTR and EVO owners "upgrade" them.

 

..and so many poorly functioning stock Z brake setups unfortunatly.

Edited April 25, 201015 yr by Yowser