Front Brake Recommendations

[Matty 31]

Hey all, not often i post in here

Decided to get off my arse and do some research for upgrading my aus R31 front brakes. I know that straight away i could go to 5 stud by swapping to HR31 / GTS struts with floating hubs, then using s13/14 bits to get the desired result. However this line is not feasible at this time, plus i wanted to research other options for more accessible (and possibly cheaper) parts to do the same job. Pete (66 skyline GT) is going to be helping me, so custom isnt really an issue, as we're in the process of sorting the rear end out for 5 stud.

Does anyone have any idea what cars (either within the nissan family or outside it) have a similar front end setup that can allow me to keep my current / slightly modified arrangement and carry across some decent brake options?

Current setup: Koni Red adjustables, Aurora custom springs, S13 lower control arms, Whiteline F/R swaybars, Noltec Adj Panhard Rod.

As far as i know i cant carry the Koni front inserts across to HR struts, or can i? If so, the next question is how?

Making caliper adapters isnt an issue as Pete has said he can pretty much knock up anything. Mainly wanting some larger rotors (to match some larger calipers of course) and a 5 stud arrangement

Any thoughts are helpful. This hasnt been posted on the R31 Forum tech section as i assume the only answer id get would be in regards to the known S13/S14 arrangement. Looking at this purely to open up possible avenues for future development

Cheers

[R31 drift pig]

How bout you drive the thing instead of being all hektik with 5 stud ya mong.

Like I said matty... a Commo caliper/rotor arrangement might be good, Cheap and loads of pad/rotor options, redrilled of course, but also maybe an similar sort of setup to petes? GTR or 33 GTS-T calliper/commo rotor but with 5 stud? We've got the rear setup sorted now, now to just figure out the fronts eh?

Should have just gone S13 LOL

[discopotato03]

How bout you drive the thing instead of being all hektik with 5 stud ya mong.

Like I said matty... a Commo caliper/rotor arrangement might be good, Cheap and loads of pad/rotor options, redrilled of course, but also maybe an similar sort of setup to petes? GTR or 33 GTS-T calliper/commo rotor but with 5 stud? We've got the rear setup sorted now, now to just figure out the fronts eh?

Should have just gone S13 LOL

I think you people need to find a machine shop thats prepared to machine up front hubs with the flange drilled for 5 x 114.4 PCD . This flange needs offset inwards by the same amount as the thickness of the later type disc over studs system . Honestly there are that many people wanting to do this that if you got a large enough group buy happening they would not be that expensive . Another option could be to see how difficult it would be to modify the R30/31 front stub to take an R32/3/4 cartridge style hub and bearing . Another could be to find another hub system that has the same stud PCD from another car manufacturer ie Ford ?

Cheers A .

[R31 drift pig]

I think you people need to find a machine shop thats prepared to machine up front hubs with the flange drilled for 5 x 114.4 PCD . This flange needs offset inwards by the same amount as the thickness of the later type disc over studs system . Honestly there are that many people wanting to do this that if you got a large enough group buy happening they would not be that expensive .

I reckon this would still be a fair chunk of coin to achieve..... and then you still have to find a rotor/caliper arrangement that will fit up to that. Need to be machined for the front wheel bearing as well... I wonder if falcon hubs are similar? Might be able to machine them to fit?

Another option could be to see how difficult it would be to modify the R30/31 front stub to take an R32/3/4 cartridge style hub and bearing .

A member is doing this on the R31skylineclub.com site.... still waiting to see how it all eventuates. Looks like the goods so far, seems a bit easier to just go S13 setup, for me anyways.

Wish it was as easy as the rear LOL...(well, Im using Hydraulic handbrake, matty wants to kepp his stock cable arrangment.) But I think he's switching to a EB rotor with a stock calliper and redrilling hubs

Im using a EB falcon rotor, with the stock hubs redrilled to 5 x 114.3, and a VS commodore calliper, and a autosport hydro hanny

Edited May 6, 2007 by R31 drift pig

[Matty 31]

as ben said im still needing the cable handbrake up rear as it will be a daily driven car, and having a hydro only setup isnt effective.

havent 100% sat down and worked out what exactly the rear will run, its more getting bigger discs and calipers up front that im finding and important issue. Stock size (slotteds) are fine, but still id rather a bit bigger for piece of mind

[rsx84]

ok,

firstly: there are a few options, you can stick to the aus r31 front struts and have the rotor machined off leaving the hub with the 4 x 114.3 stud pattern, then the other problem is the 90mm calipar spacing with the aus strut. a bracket is required to allow the 4 pot r32 onwards calipars to be mounted.

secondly: Hr31 front struts, they have the 100mm calipar spacing required for the nissan 4 pot calipars, there is a slight mod the the incert konis shock required to get them the fit, grind off part of the little knob at the bottom of the incert until it fits??, the rotors and calipars are a great improvement to the aus spec items alone, slight spacing of r32 rotors is all that is required to fit to go to an r32 calipar rotor set up, you may need to space out your brake line connection with copper washers so they fit tightly..

Budget wise these are the best 2 options.....

stud pattern involves re-drilling ither the r32 rotor to the 4x 114.3 pattern or redrilling the already machined hubs to the 5 x 114.3 pattern? the other option here is finding a set of Z31 turbo hubs, standard 5 x 114.3 pattern but very very rare and $$$$.....

looking at the power figure you have to date i'd go just the HR31 struts with HR31 rotors and calipars... in QLD you'd have no problem getting it engineered with those stoppers alone.....

a mate just built an rb30et with a hiflow VL turbo sitting on the side, according the the machanic good for 200+rwkw at 18psi and with this in mind the engineer had no problems signing off with just the HR31 brake set up and new pads...

Edited May 7, 2007 by rsx84

[GTR30]

Spend the dollars and go Z32 4spots up front and 2's in the rear and go the five stud conversion if you're going a bigger rim size and want the thing to stop quicker than go kart