[Smoovie]

Hi all,

Looking at buying a S14 soon and just need to know if the Brembo's from a EVO VII / VIII / IX could fit a s14?

Reason i'm asking is because the Brembo's from CT9A model EVO's are cheap (approx $1000 for F+R) and do provide some pretty amazing stopping power.

I know GT-R brembo's are a popular upgrade but they cost upwards of $1500!?

[blingcommander]

i have heard of people running billet adapters to do this.

no idea myself, i just went the GTR ones

[XDUP13]

id would just go with gtst or gtr calipers, wouldnt stuff round trying to fit evo brakes on

[Shock Systems]

Search on Zilvia, they do it heaps. Very common

[phunky_monkey]

It definitely can be done, and there was a conversion for sale not long ago. You will need adaptors made up to suit though, and you'll need to change your master cylinder as the Evo's run quite large pistons.

Have a look in the Suspension section on SAU, there was a thread about it maybe 6 months ago with a lot of good information in it.

[Pharonic]

the mounting points on S series nissan brakes are 12 cm apart, whereas evos are 14 cm apart

so there'll be a bit of dicking about to get it working/mounted. gtr brembos are pretty much a straight bolt on, only the rears will need custom braided lines and also the drum handbrake set up from a r33 gtst

as phunky monkey has written, you may need to change the BMC as pistons in brembos are alot larger than our stock brakes, otherwise you'll feel a 'soft' pedal....

[CaBS]

Smoovie, on May 27 2009, 10:35 PM, said:

Hi all,

Looking at buying a S14 soon and just need to know if the Brembo's from a EVO VII / VIII / IX could fit a s14?

Reason i'm asking is because the Brembo's from CT9A model EVO's are cheap (approx $1000 for F+R) and do provide some pretty amazing stopping power.

I know GT-R brembo's are a popular upgrade but they cost upwards of $1500!?

If you look on US ebay you'll probably be able to find them for even cheaper, there are alot that pop up. I personally went with GTR ones cause I dont want to mess around with brackets.

[sr-ceffy]

um what disc/rotors will you be using cause if they are that cheap i might do the same:) ive done brake conversion before where i had to make my own adapters up its not overly hard you just need to make sure of disc offsetts and stuff the dba website has a pdf file with measurement specs on every rotor they make the kit i done on my previous car i bought jaguar xk8 brembo calipers from uk they cost me like 250 dollars for the front pair brand new they are the same as brembo f50 calipers so you might want to look at europe for some secondhand gear as its pretty common stuff over there

[ichi-go]

I think you need to use evo rotors too... the rotor size is slightly different as well

[rhocken]

The EVO/STI are Brembo F40 calipers. The EVO rotors are a low offset which means its more likely the caliper will foul on the rims. Through the adapter is easier to make.

I've got some in the garage - I'm going to use a two piece rotor - GTR hat, HSV 330mm rotor. The extra 6mm diameter over the GTR rotor makes the adapter easier to make. This will have the same offset as the stock brakes so will clear all the same rims [My rims wouldn't clear the caliper with the EVO rotor offset]

The F40 is designed for a 320-330ish rotor. EVO is 320 I think....

I've seen the front calipers here in NZ for $400 for the pair. I don't see much point in the Brembo rears. The two pot Nissan rears (Z32, R32, etc) bolt up, have about the same size rotor and everything just works.

I can't remember the Z32/R32 4 pot piston size. The Brembo F40 pistons are staggered at 44 and 38mm (F50 is 44 and 40). Also the larger rotor will also affect the bias.

I've got a 17/16 Nissan BMC at the moment. Haven't done the calculations on that. Not sure what size the EVO BMC is.

[Pharonic]

rhocken, on May 29 2009, 11:42 AM, said:

The EVO/STI are Brembo F40 calipers. The EVO rotors are a low offset which means its more likely the caliper will foul on the rims. Through the adapter is easier to make.

I've got some in the garage - I'm going to use a two piece rotor - GTR hat, HSV 330mm rotor. The extra 6mm diameter over the GTR rotor makes the adapter easier to make. This will have the same offset as the stock brakes so will clear all the same rims [My rims wouldn't clear the caliper with the EVO rotor offset]

The F40 is designed for a 320-330ish rotor. EVO is 320 I think....

I've seen the front calipers here in NZ for $400 for the pair. I don't see much point in the Brembo rears. The two pot Nissan rears (Z32, R32, etc) bolt up, have about the same size rotor and everything just works.

I can't remember the Z32/R32 4 pot piston size. The Brembo F40 pistons are staggered at 44 and 38mm (F50 is 44 and 40). Also the larger rotor will also affect the bias.

I've got a 17/16 Nissan BMC at the moment. Haven't done the calculations on that. Not sure what size the EVO BMC is.

EVO BMC is 17/16


Evo rotor is 330mmx32

F40 accepts a 355mm rotor, not a 320mm rotor.

[rhocken]

Quote

Evo rotor is 330mmx32

F40 accepts a 355mm rotor, not a 320mm rotor.

Really - The DBA catalog lists EVO 7-8 as 320mmx32. The EVO7 in the garage I'm pretty sure has 320mm
The 10 is larger I believe (350mm?), not sure about the 9.

Also http://forums.bimmer....php?p=14578883 shows the F40 as a 332mm rotor size. I wouldn't have thought it would engage properly on a 355? (the pad would hang over the edge of the rotor). Are the EVO-X or EVO-9 calipers still called F40 but accept the larger rotor?

http://www.sr20forum...ake-setups.html lists the sizes of various calipers pistons and also BMC specs

The Brembo F40 @44 and 38mm pistons has = 5309mm^2 per caliper
The Z32/R32/S15 4 pot has 40.45mm pistons = 5140mm^2 per caliper

ie the Brembo caliper has 3.3% more piston area - thus I would have through the same master cylinder would work with either. The difference in rotor size will alter bias however

[Pharonic]

rhocken, on May 29 2009, 07:54 PM, said:

Quote

Evo rotor is 330mmx32

F40 accepts a 355mm rotor, not a 320mm rotor.

Really - The DBA catalog lists EVO 7-8 as 320mmx32. The EVO7 in the garage I'm pretty sure has 320mm
The 10 is larger I believe (350mm?), not sure about the 9.

My bad, Evo 7-9 run 320mm rotors

rhocken, on May 29 2009, 07:54 PM, said:

Also http://forums.bimmer....php?p=14578883 shows the F40 as a 332mm rotor size. I wouldn't have thought it would engage properly on a 355? (the pad would hang over the edge of the rotor). Are the EVO-X or EVO-9 calipers still called F40 but accept the larger rotor?

People have used 332mm rotors, but have also used 343 and 355mm rotors too.

[Smoovie]

I've managed to find a thread on the Zilvia.net forums about guys fitting STI Brembo's with EVO rotors (320mm).

Just need a quickly made bracket for the front and everything lines up perfect. Will probably need a BMC from a STI as well (i'm only assuming though)

[rhocken]

Smoovie, on Jun 3 2009, 11:47 AM, said:

Just need a quickly made bracket for the front and everything lines up perfect. Will probably need a BMC from a STI as well (i'm only assuming though)

Why? Do you have 4pots at the moment? If so the piston area is about the same as I pointed out above. The brake upgrade is to a larger rotor and more thermal capacity (that's why they're better). The larger diameter will alter the brake balance. Do you know the STI balance is better?

[phunky_monkey]

What Nissan 17/16 BMC are you using buddy?

[rhocken]

The 17/16 BMC I have is off a 300ZX. I think they used them on the GTR as well at some point. It was an ABS BMC - and thus had two lines off it not three. I don't have ABS but fortunately the BMC has the casting place for the third port (the one that goes backwards on an angle). I got it drilled, taped and the seat installed in it.

[phunky_monkey]

Nice one, how much did that set you back? And did you get the one off the 2+2 or 2 seater?

I don't want to spring for a 32 N1 MC, so this could be a great option.

Thanks

[rhocken]

I actually don't know what it was off - I think Nissan mixed it up a little over the different years of production. I got some other stuff at the same time - Z32 aluminum rear hub carriers and some other bits so it was kind of a bundle.

I just read that a Terreno BMC may be 17/16 as well. The big question is always what the bias/split point is front to back when swapping BMC.

Fortunately if you can see it in person its easy to check the size (it says on the side of it)

[dollar80]

I thought the GTR bembo's were F40 and the EVO's F50? - the EVO are a HEAPS bigger caliper than GTR Brembo.

For those using the Zilvia provided template to use EVO/STI calipers and EVO rotors on the Nissans, the dimensions are not exactly accurate - so dont blindly make them without measuring everything first!

I am making brackets at the moment, should have them trial fitted in the next couple of weeks. Mine will look more like the 'professionally made' brackets in that thread.

Zilvia Link

Tim

[Blimp Footsoulja]

Just quickly as well, it might not be of any use to you being here in SA, but i know for a fact that Frank from Japco here in adelaide has done the conversion you speak on his circuit S14, it might be worth giving him a ring just to ask how he went about it.

[rhocken]

Quote

I thought the GTR bembo's were F40 and the EVO's F50? - the EVO are a HEAPS bigger caliper than GTR Brembo.

The only difference between a F40 and a F50 is the small piston size. The F40 uses 44 and 38mm pistons. The F50 uses 44 and 40mm pistons. The piston setup is staggered to try and make the pad wear evenly and get even force distribution across the pad surface. The back piston is larger because the front edge of the pad grabs and in doing so trys to twist itself - the larger rear piston serves to counter the twist.

Not sure what the GTR Brembo caliper is, or what size pistons or pad it has - so can't really compare its technical merits (other than it bolts up)