EK4 Brake Upgrades

[Chris S15]

Hi All,

I've had my EK4 for a about a year now and took it to Wakefield about 7 months ago. I'm happy with the suspension package i have and the power i'm getting out of it. But what is really "slowing" me down is the brakes and tyres.

I currently have daily driver tyres, brake discs and pads. But, by the 3rd lap, the brakes are gone and by the 4th lap the tyres are gone too.

Even if i use lightweight wheels and semi's, it's still going to be useless if my brakes can't handle it.

So, i think i should upgrade the brakes first and then see what wheels will fit around the aftermarket brakes.

Basically, i'm after a big brake upgrade for my EK4.

eg: 6-pot on the front with 330mm rotors and 4-pot on the rears.

I noticed Spoon make a monoblock and twin-block brake kit. There is also the G4 6-pot brake kit.

If anyone could provide guidance and feedback with what have actually used and experienced.

And also any workshops that actually supply and fit big brake kits in Sydney.

Any help would be appreciated.

Thanks.

Chris

[tuyen]

Those brake upgrades you mention above seem a bit excessive in my opinion. Upgrade to a set of good slotted rotors and some decent race pads front and rear and it should be fine for track work.

I know people who use those G4 '8 piston' brake kits and they are crap. Hardly high quality, more for show..

[Sir_vtec]

upgrade to itr 1" brake booster and mc with 282mm rotors, itr calipers, some quality pads, and some good quality tyres.

[AndreaCivic]

Sir_Vtec

just to clarify, could i keep my current 4x100 stud pattern by just upgrading the calipers, booster & MC to ITR or EK9 units?

obviously then i'd have to source 282mm and 262mm front and rear rotors respectively in 4 x 100 stud pattern.

btw i have ek4..

thanks

P.s. sorry for hyjacking

[Mugen_B16B]

get dba itr slotted rotors redrilled to 4x100
upgrade ur booster and MC to EK9 or ITR ones
spoon twin block calipers, ur gonna need to mod to fit onto ek4 rear bracket
and some good pads of ur choice

[AndreaCivic]

dba itr redrilled? can't you get predrilled rotors of the 4 x100 size?
i dont want slotted rotors either as i dont see the point..
spoon twin blocks in the rear?

[shebangs]

Running 5 lug DC2R all round will give you some serious stopping power (with MC and Booster). If you need more above this checkout Wilwood.

[AndreaCivic]

Running 5 lug DC2R all round will give you some serious stopping power (with MC and Booster). If you need more above this checkout Wilwood.

thanks but wanting to stay with 4 lug.
dont think i'd need above the itr or ek9 stopping power

[Limbo]

you can redrill the ITR rotors or get predrilled rotored that are 282mm.
I got both so they are available and doable
Just be careful with rims as not all rims fit the ITR calipers

[Chris S15]

i ended up going the itr 5 lug conversion. Track pads, track fluid, braided lines and new rotors made a massive difference. No brake fade at all for the whole track day.

[AndreaCivic]

Limbo, I'm thinking of sourcing some work cr kai wheels in 16x7 +35. do you think these will have enough clearance?

Chris, is there a reason you went the whole 5 lug conversion? I mean if you can just upgrade the rotors and calipers then why change the knuckles and hubs?

In the future i hope to upgrade to a b16b or b18c or maybe just enhance the performance of my b16a (depending on finances). do these motors (b16b, b18c) require ITR or CTR hub/knuckles for the axles/driveshafts?

[Chris S15]

Limbo, I'm thinking of sourcing some work cr kai wheels in 16x7 +35. do you think these will have enough clearance?

Chris, is there a reason you went the whole 5 lug conversion? I mean if you can just upgrade the rotors and calipers then why change the knuckles and hubs?

In the future i hope to upgrade to a b16b or b18c or maybe just enhance the performance of my b16a (depending on finances). do these motors (b16b, b18c) require ITR or CTR hub/knuckles for the axles/driveshafts?

The reason i went the 5 lug conversion was because there are more aftermarket big brake kits for the DC2R than there is for EK4's. So it gives me options for the future, but so far, i don't need to go bigger. So i'm happy with what i have at the moment.

[90LAN]

i ended up going the itr 5 lug conversion. Track pads, track fluid, braided lines and new rotors made a massive difference. No brake fade at all for the whole track day.

good choice mate
alot of people on here say you dont need it but they dont have a clue
and go the cheap option of just your basic upgrades like pads, fluids etc
but at the end of the day there is no comparision

[ek4-guy]

get dba itr slotted rotors redrilled to 4x100
upgrade ur booster and MC to EK9 or ITR ones
spoon twin block calipers, ur gonna need to mod to fit onto ek4 rear bracket
and some good pads of ur choice


dba itr redrilled? can't you get predrilled rotors of the 4 x100 size?
i dont want slotted rotors either as i dont see the point..
spoon twin blocks in the rear?

If your nice to the guy at DBA he will pull a set of ITR disks off the next production run before they are drilled and drill them 4x100

[AndreaCivic]

The reason i went the 5 lug conversion was because there are more aftermarket big brake kits for the DC2R than there is for EK4's. So it gives me options for the future, but so far, i don't need to go bigger. So i'm happy with what i have at the moment.


if oem ek9 calipers will fit on ek4 with 282mm rotors howcome spoon ek9 calipers wont fit?

excuse my newbality..

:thumbsup:

[AndreaCivic]

If your nice to the guy at DBA he will pull a set of ITR disks off the next production run before they are drilled and drill them 4x100

thanks, good to know although trying to avoid the slotted rotors..

[Migoreng_Noodles]

Sorry for the noob question

I'm looking at running DC2R Calipers on redrilled 4x100 DBA Rotors. MC/Booster is DC2R already.

I just wanted to know, if I pickup a set of used DC2R Calipers for $100 or so bucks, then get new rotors that's all I need for my setup?

I won't have a problem with knuckles? DC2R Calipers come with pistons ... right? :) hehe

[AndreaCivic]

looks like you got eg civic?

[Migoreng_Noodles]

looks like you got eg civic?

Yeah dude. I'm basically running this setup right now:

DC2R MC+Booster
Stock EG Front Discs
DC2 Disc rear including hand brake

So yeah, I want to finish the setup with DC2R 282mm front brakes but keeping 4x100.

Can I just buy a set of RDA (JDMyard) Front slotted disc 282mm rotor's for a Prelude BB4, and pick up some second hand DC2R Calipers on here?

With new Endless pants, and new fluid. Will everything line up without a problem?

[Chris S15]

if you're going to use your stock knuckles and carrier. You'll have to machine the mounting area about 2-3mm so the caliper and rotor clear each other. So much more easier to just convert the whole lot into dc2r. But, more expensive too.

[AndreaCivic]

if you're going to use your stock knuckles and carrier. You'll have to machine the mounting area about 2-3mm so the caliper and rotor clear each other. So much more easier to just convert the whole lot into dc2r. But, more expensive too.

chris does this apply to ek4 aswell?

[Migoreng_Noodles]

if you're going to use your stock knuckles and carrier. You'll have to machine the mounting area about 2-3mm so the caliper and rotor clear each other. So much more easier to just convert the whole lot into dc2r. But, more expensive too.

Nice reply thanks

So machining is the only option?

I already have most of the setup, so going to full 5 lug DC2R seems a bit much. All i need is the front rotors/calipers uped to 282mm.

Do I have any other options? Or is maching the mounting area perfectly normal/safe?

[Limbo]

if you stay 4 lug with ek4 hubs, yes you do need to machine 2-3mm (its close to 2.5mm)
In relation to fitment of mags 15"mags you need to be careful to clear the calipers. So far i've only managed to find 2 sets that clear, ek4 rims & advanti racing rims (could be more but i don't know). Anything larger will have no probs clearing.

Spoon calipers are even larger than the ITR/CTR/Prelude calipers (these 3 are the same - 97+ to 2001).

[AndreaCivic]

thanks Limbo and chris very helpfull!:thumbsup:

[Chris S15]

chris does this apply to ek4 aswell?

Yep. It applies to the EK4 as well. I like to do things straight forward, so i replaced the whole lot.

[Migoreng_Noodles]

if you stay 4 lug with ek4 hubs, yes you do need to machine 2-3mm (its close to 2.5mm)
In relation to fitment of mags 15"mags you need to be careful to clear the calipers. So far i've only managed to find 2 sets that clear, ek4 rims & advanti racing rims (could be more but i don't know). Anything larger will have no probs clearing.

Spoon calipers are even larger than the ITR/CTR/Prelude calipers (these 3 are the same - 97+ to 2001).


Thanks dude. Not running 4 lug EK4 here, I have a EG.

My rims are 15' Rota slipstreams (lol).

So final question, (I promise) ... will the DC2R Calipers fit behind 15' rota's and if so, do I still need to machine 2-3mm?

[vinnY]

the machining is so that the caliper bracket clears the rotors, not really for the rims

depends on the spoke design, size(including width) and offset of rims
ek4 rims barely clear it, they are(if i'm not mistaken) 15x6 +45

[AndreaCivic]

Yep. It applies to the EK4 as well. I like to do things straight forward, so i replaced the whole lot.

cheers chris..
what happens with the abs though? did you keep the ek4 abs or upgrade to dc2r abs?

is abs even any good?

lol

[Chris S15]

the ek4 abs bolts directly onto the dc2r equipment. I tested it and my abs still works fine. It doesn't matter which one. They both work with each other. Abs is good in most cases for normal driving.

[AndreaCivic]

that's awesome..

i'd love to know how the abs still works safely considering the dc2r braking power is much greater than the ek4..

[EG30]

Thanks dude. Not running 4 lug EK4 here, I have a EG.

My rims are 15' Rota slipstreams (lol).

So final question, (I promise) ... will the DC2R Calipers fit behind 15' rota's and if so, do I still need to machine 2-3mm?

your slips would clear the bigger 1517 calipers no probs, I only have fat fives on my EG and there's till 3mm+ clearance at the tightest spot.

you need to machine 2.7mm off the caliper brackets regardless, unless you use different rotors with a diff offest ie Merc Benz W124 284mm rotors. But you'll still need to redrill and centre bore of 67mm still requires a hub ring.