3doorcozmess

Hello People

Who and where to get front brakes from?

I had AP on my last car are they the best??

Cheers Si

Nash

iTrader: (3)

AP are the best yes.

ajamesc

Yep ap's the 330's with 4 pots are more than good enough for a heavily tuned road car

3doorcozmess

Where's the best place to buy from?

Reyland

Rod-Tarry

You cant use there road discs over 700bhp so how heavy are you talking about. You need disks with less cooling to keep them hot so temp differential is less when you try braking from very high speeds or they WILL crack. AP Motorsport department will advise.

Adam-M

But on a 2wd sapphire over 700bhp is pointless.

ajamesc

500-600 ish rod

ajamesc

That's funny as I know a certain white one that had no issues with 800!

Ridgey

iTrader: (5)

I don't believe bhp is the issue here, the issue is the use of the vehicle.
If on a circuit with frequent heavy breaking the temp will be maintained.
One hit wonder, high speed runners is a different matter.

Ridgey

iTrader: (5)

Again depends on the use really.

ajamesc

fast road car? Puts its power down from the off?

Adam-M

No issues if on a perfect straight line above 100mph in the dry Pmsl

ajamesc

Total rubbish it dose not have traction issues go's to show you have no idea at all. You would not see which way it went at any point on the road

Adam-M

Well put your knickers back on and enlighten me to how it doesn't have any traction issues then as I'm clearly doing something wrong with a stage 3 saff with a gripper diff.

ajamesc

lol it has the very best of everything you can buy. Ask rod or mark how it's possible. I only have my knickers in a twist as if I'm honest the one trick pony it only go's in a straight line fast comments are so far from what's real it not even funny. If you went in that car your view on what's really fast would be changed for ever.

Martin-Hadland

iTrader: (2)

All of my high speed runs were done with 380mm front discs and zero cracking.

Rod-Tarry

380 can deal with heat 23% longer than 330 ones which is what the question was about. AP Motorsport were horrified we were using there road discs & braking multi-times from 200mph they advised & supplied the correct discs.

Martin-Hadland

iTrader: (2)

Sorry I thought you were saying that smaller was needed to keep temps up! Ive probably read it all wrong!

2wdsaph ben

Don't think anyone could image how fast rods car actually is. 400bhp+ feels mega fast on road let alone double that. I used to think my standard cossie was fast when 1st bought it

Mark V8

iTrader: (2)

Kind of on subject, do you know if your 355mm 2WD front discs with six pots will fit under Revolution millennium 17 inch rims ?

AP Racing 6-pot CP9040 caliper and 2-piece disc kit

Thanks

Rod-Tarry

You are doing nothing wrong at your budget. Proper beam with a solid Diff that really grips (Thats why the drag boys use them) Chassis connectors holding front to rear suspension, Modified Coilovers with twin Springs & 235 wide trackday tyres. The real trick is actually in the gearing of course you need massive Power to pull that gearing. Try 67mph in 1st, 102mph in 2nd, 151 in 3rd & 192mph in 4th & yes ive pulled all those speeds. Don't try pulling that gearing with less than 850bhp.

Martin-Hadland

iTrader: (2)

I cant quote specifically on my kits Mark as I'm not a paid up trader but I'd have thought those ingredients would fit inside that wheel. A drawing is needed really to confirm or some simple internal wheel measurements would suffice.

turbotrev

I thought this was about brakes??

Rod your car is a bit of an exception here.
No one else is interested in braking from 200mph....

Cheers Paul

ajamesc

Just get a 330 kit off Martin it will more than suit your needs on the road

dojj

iTrader: (3)

the correct answer is "whatever you can fit inside your wheels"

if you have 18's then you can obviously go bigger than 330 in some cases

362's and 6 pots and i was ALWAYS braking too early on the track, and that's in a car that is going to be at least 20% heavier than the saph

3doorcozmess

Cheers for trashing my thread.

All I asked was advice where and what type of brakes are good for a 2wd cosworth and some how it's turned into a load of old waffle.

3doorcozmess

Seriously rod how many people are gonna have 2wd saffs over 700bhp.

Martin-Hadland

iTrader: (2)

There are a few options for a 2wd Cosworth but wheel type and size may limit you, as already mentioned a 4 pot 5200 330mm kit is popular but you could go 6 pot with larger rotors..

3doorcozmess

Wouldnt go bigger than 330mm there big enough, I will be on 17inch wheels

I all ready have some sort of brakes on my car but not sure I want them I think there high spec the discs are mashed and there floating I hate them as they rattle

Martin-Hadland

iTrader: (2)

They only rattle because they have no anti rattle springs fitted.

3doorcozmess

Was told there heat cracked any way so need to go?

I think the calipers can only take the standard size discs as well I would want 330mm minimum

Ridgey

iTrader: (5)

Look like hi-spec calipers.

3doorcozmess

They are but don't they have there name on them but do on the brackets. If they can hold 330mm discs I will keep them and buy new bells and rotors.

I have asked high spec for a price but there appalling at returning mails

Si

dojj

iTrader: (3)

their customer service isn't the best

they are hi spec calipers though

personally, if it were me, i'd sell the whole kit on and get something factory fresh, those discs look like they've got issues too in that second picture

Sierrasideways

iTrader: (1)

I asked this question a while back and I will be going with AP 6 pots and the biggest disks I can fit under 18" MOs or something like that. Can't ever have enough stopping power!

The 6 pots aren't too much more expensive than the 4 pots so why not just get the 6 pots and be done with it?!

I was also advised that 4X4 callipers and 300/320mm discs on the rear is definitively enough for any(fast road and track day) 2WD Saff, not 4 pots.

I understand funds are more likely the limiting factor but hey we're all in the same boat usually

Philip.

cossie2

...sorry to jump on thread but does anybody knows what is the mod for calipers when fitting High spec 310mm discs in order to fit original 16 inch cossie wheels...Thanks

dojj

iTrader: (3)

Depending on which when and calliper you go with, 362's all day long with potentially 378's

ajamesc

I was once told massive discs and large calipers can over brake a relatively light road car. And feel too much . So maybe bigger is not always better

dojj

iTrader: (3)

you are talking about things like lotus's and caterhams etc where they simply don't have the mass capable of applying enough weight to the front wheels when you stamp on the brake pedal

if stoppers the size of dustbin lids are good enough for btcc cars they are good enough for road cars

Sierrasideways

iTrader: (1)

Thanks Dojj I'll be going with 378s I'd say, when the bloody funds allow. 2016 DEFINITELY!!!

Philip.