D Jarman's rear disc brake kit

[Charlie Boy]

I would think 95% of the time that kit would be fine but with an F/R car there is a bit more weight in the rear therefore you can use a bit more brake. Maybe the guy’s using the kit are only coming into problems on the track, I just don’t want to find my car doing odd stuff when I’m going around the Nurburgring

 

[Charlie Boy]

Hi Z Farm, Where are you guy's based? maybe I'll pop in and see what you've got.

C

 

[vpulsar]

I just don’t want to find my car doing odd stuff when I’m going around the Nurburgring

If you over brake the rear you will see some odd stuff all right matey lol, You'll be looking through the back window as you hit the Armco .



Rob

 

[Charlie Boy]

From what I have read the guy’s running Wilwood fronts and similar rear kits to the ebay ones are having to put their proportioning valves to full rear and still they can’t get them to work well for the track. I’m not looking for massive amounts of rear brake that will send me backwards into the Armco just enough to give me a good balance. I don’t want huge weight transfer to the fronts going into corners because my rears aren’t do what they should but maybe it works ok for you Rob

 

[vpulsar]

In my opinion all you want to feel from the backs is them keeping you straight and balanced under heavy braking, They don't have to do much at low speeds as the fronts do most of the work anyway, Your comments about the people running wilwoods might have something do with the fact that wilwoods are in my humble opinion (RUBBISH).

I've driven my mates wilwood equipped Pulsar and compared to my AP equipped car they where bl00dy hopeless, I also don't like the build quality of the wilwood fitting kits, What you need a really good set of AP's or similar at the front and some normal sized rears with good discs and pads fitted, I also found that using the racing blue synthetic brake fluid made a fair bit of difference.


Rob

 

[260Z TT]

My 260 is running on early 280zx rear discs and calipers, with 6 pot Wilwood Integra 6r's and vented discs from a Nascar! Stock servo and an early 280zx master cylinder, with a balance valve mounted in place of the proportioning valve on the bulkhead. They work extremely well!!
Mark

 

[racer]

Quote 'Willwoods are Rubbish' A well respected brake manufacture with years of race experience! Hmm I think that statement has no merit. Perhaps your friends Pulsars did not have the correct pad compound/master cylinder combo to give the correct feel and performance?
Ap also have a very good reputation but , they are I believe a fair bit more exspensive than Willwood.Not everyone has the same budget of course.
As for the rear set up obviously Daves conversion is the better job. It has brand new good sized calipers and all the bits to go with them. The other kits just look like recondtioned 280zx calipers. Surley better to have more brakeing than necessary and then fine tune it with an easily fitted bias valve.

 

[vpulsar]

Quote 'Willwoods are Rubbish' A well respected brake manufacture with years of race experience! Hmm I think that statement has no merit.

I did say it was a personal opinion sunshine .

I've worked on at least 6 wilwood equipped pulsars and wasn't impressed with any of them at all, But of cause it depends on exactly what wilwood calliper has been used in any particular kit, Some of their callipers are very good, Just not the cheap 5hit they sell to pulsar owners .

Those callipers in the link I posted are new Maxima rear callipers I believe, For the money it looks like an OK kit. Of cause you can buy better bigger callipers but my argument is that unless you have a really powerful track car their isn't much point in anything bigger than those in the link.

They only need to do 25-30% of the braking anyway!


Rob

 

[SKiddell]

Re Daves rear kit
Works extreamely well, fits well, looks good, does the job, after 70 laps of Donington it was in tip top condition.
I really didnt like the idea of the 280ZX set up as its a little crude...but thats my own personal opinion

Re Dave's front kit
I use the lightweight fronts, and its a great setup, when used with decent fluid (600F) its almost fade free.... once again 70 laps of Donington, breaking from 120 to 30 for the kick into the finish straight saw no problems.

One problem I see (hinted at) is that people are prepared to spend £1k on a front rear setup then 50p on fluid and pads

 

[vpulsar]

One problem I see (hinted at) is that people are prepared to spend £1k on a front rear setup then 50p on fluid and pads

Very good point, My pads where over a £100 a set for my AP's and the synthetic fluid was a vast improvement over the normal fluid.

My standard rear callipers where fitted with very good quality pagid rear discs and matching pads, Which also worked much better than the standard discs and pads.


Rob

 

[Charlie Boy]

Thanks guy’s, sounds like Dave’s kit will do the job just need to find out what pads are available for them before handing over my cash.

Rob I agree that Wilwood are at the lower end of the market, but until someone comes up with a AP kit and proves it on the track and then offers it to the Z community with a warranty and back up, I’ll just have to make do with them.

Then again I could go for Z06 brakes but I think I would suffer severe whip lash with those

http://www.viczcar.com/forum/index.php/topic,2276.0.html

C

 

[Ian Patmore]

Coming in late here, but just finished fitting everything to a late 280zx rear disc set up. Looks good, and easy, once I had figured it out.... and for the money, a good system that is easy to get hold of parts for. Have not seen the DJ set up, so can't comment, though I am sure it will be good.

Charlie boy, I have an AP set up on the front, its a bit old hat now, and heavy...though works fine (when I ran it on the standard car).

 

[Charlie Boy]

I've ordered the AZC wilwood front kit, as for the rears the guy who is building the car has suggested fitting twin piston calipers with a vented disc and a separate parking brake caliper. I'll let you all know how it goes.

C

 

[SKiddell]

as for the rears the guy who is building the car has suggested fitting twin piston calipers with a vented disc and a separate parking brake caliper

Blimey what are you trying to stop and oil tanker, a Z only has around 30% breaking on the rear....I have biased mine to around 40% and it sent the MOT tester almost off the scale


IMHO overkill but hey thats why we have a forum

 

[dalton260z]

hi i am looking for brackets to bolt up rear calipers on my 260z. i have 280zx calipers can anyone know where i can get them? like the bracket pictured on page 1 of this tread

 

[johnymd]

I have a spare set of brackets to fit the maxima calipers. Not sure if they suit the 280zx caliper and disk?

 

[johnymd]

Just to add to this thread with regard to front/back brake sizes. I am also of the opinion that if you go too big on the rears it can cause all sorts of problems that you may not be able to tune out. It is worth looking at big manufacturers/race teams to see how they size their rear setups in relation to the fronts. For reference I have included a couple of pictures of a big Audi race car that’s shows just how tiny the rear setup is when compaired to the fronts.

 

[Rob Gaskin]

Yes good points John, rear discs on a 240Z mainly help with heat dissipation unless you are gravel rallying where you need a lot of rear bias. I've known Range Rover 4 pots on the REAR of a rally 240Z.

 

[toopy]

Just to add to this thread with regard to front/back brake sizes. I am also of the opinion that if you go too big on the rears it can cause all sorts of problems that you may not be able to tune out. It is worth looking at big manufacturers/race teams to see how they size their rear setups in relation to the fronts. For reference I have included a couple of pictures of a big Audi race car that’s shows just how tiny the rear setup is when compaired to the fronts.

Thats quite a contrast, still only a 2 piston on the back as well, considering the size of the drums on a 240/260, they are more than up to the job even on quite modified cars i guess.

 

[dalton260z]

johnymd would sell the spare brackets??