4 pots with 15" wheels

[M.C..]

I need to do something with my brakes for next year, I currently have a problem with them vibrating under heavy braking on track.
I have found the slider pin holes in the carrier are elongated so I either need to replace the carriers with some new ones and probably new pins so a cost of around £200, I had the calipers refurbed last year so they are fine.
or get some 4 pots.
I am running 15" pro race 1.2 with a offset of et35.
Does anyone know if the wilwoods or the 197/200 Brembos would fit without spacers using the standard disc or what spacers would be needed?

If anyone in the Midlands does have the Brembos fitted would it be possible to try one of wheels?

 

[Ph1 Tom]

3mm spacer should be enough. I've got 10mm but I'll be replacing these with 3mm ones.

 

[EZ Tutty]

I'm running Willwoods on OE discs under 15inch Williams wheels with no issues.

 

[Ph1 Tom]

Should have said, I have the Brembos under 15" ET35 pro race 1.2. I went for the superior callipers (imo)

 

[Pauleds]

I've got AP 4pots under my 15" pro race 1.2, with 300mm rotors and alloy bells which also act as bit of a spacer. Got about 3mm clearance

 

[M.C..]

Thanks
@Ph1 Tom and @EZ Tutty do you have any photos of the clearance to the wheel (ie where the balancing weights fit) and the spokes.
also Tom did you fit a bigger master cylinder or you still running the same one and has the pedal travel changed?

I would love some AP's with alloy bells but a bit too much for me.

 

[Ph1 Tom]

Yeah have a look through the last 2-3 pages of my project thread.

On the standard cup cylinder.

If you want an equivalent braking effort from Wilwoods you need 300mm discs and more aggressive pads than you need with Brembos and 280mm discs. That made the choice for me quite an easy decision.

 

[Cub.]

Mine goes in next week to have the Meg Brembos put under 15" Oz F1 and speedline Willys. They should fit. I'm fitting a bigger master cylinder (v6 406) one at the same time.

I run 16mm spacers and the calipers will need some machining, but with guidance from @Ph1 Tom I'm hoping they'll go under :smile:

Once the guys do the job, I'll post a link to my project thread in here if you want, so you can see fitment etc :smile:

 

[M.C..]

Cheers Tom I will have a look later.
Cub I am waiting for yours to be fitted, lots of pics would be great if they can do that.

 

[Pauleds]

I only use the standard Cup M/C too. The rear compensator is in the bin and replaced with a tilton bios valve

 

[M.C..]

I assume the 182 MC is the same as the cup MC isn't it?

 

[Pauleds]

Not if it's got ABS
172 cups don't have ABS so it's a different master cylinder

 

[Ph1 Tom]

Same diameter though. A few people have the Brembos with ABS

 

[Dan@SJM]

In running 300mm discs and 4 pot Wilwoods under 15" pro race 1.2's and OZ f1's

 

[M.C..]

In running 300mm discs and 4 pot Wilwoods under 15" pro race 1.2's and OZ f1's

Is that the Jamsport kit Dan?
what offset PR 1.2 is it and does it need a spacer?

 

[Dan@SJM]

No, was a ktec kit. I machined up some spacers for the brackets.

I'll check the offset when I'm near it next.

 

[Carlv8415]

Didn't think the 4 pot Brembos would fit under 15s with 300mm discs

 

[Ph1 Tom]

Didn't think the 4 pot Brembos would fit under 15s with 300mm discs

They don't!

 

[Carlv8415]

Must have mis read someone's comment.... I getting 1.2 dynamics to go with my Brembo 4 pots

 

[NorthloopCup]

Must have mis read someone's comment.... I getting 1.2 dynamics to go with my Brembo 4 pots

It's wilwoods mate not brembos.

 

[EZ Tutty]

No, was a ktec kit. I machined up some spacers for the brackets.

I'll check the offset when I'm near it next.

Out of interest which 300mm discs are you using?
I have the Ktec kit, and was thinking of knocking up some spacers to run bigger discs, but i'm struggling to find a 300mm disc to use.

 

[Dan@SJM]

Grande scenic

 

[George@RTR_Parts]

Out of interest which 300mm discs are you using?
I have the Ktec kit, and was thinking of knocking up some spacers to run bigger discs, but i'm struggling to find a 300mm disc to use.

I can help you out with the right 300mm Brembo HC discs

 

[EZ Tutty]

Grande scenic

Thanks!

I can help you out with the right 300mm Brembo HC discs

Awesome, may be in touch in the near future!

 

[George@RTR_Parts]

Awesome, may be in touch in the near future!

No worries mate, I tend to stock them. Just send me a PM if you want a set

 

[Cub.]

@M.C.. - dropped mine off at the garage today for them to start fitting the brakes. Will update when they come back to me.

 

[M.C..]

Cheers mate

 

[RSprojects]

How did you get on with this!? I have Jamsport 295mm will woods, planning on putting in 300mm disc from scenic under 15" pro race 1.2s. Just going to put a washer or two under the calliper bracket to get clearance.
I heard you need around 10mm spacer each side to fit in the 300mm discs to do this though??

 

[Dan@SJM]

Well not with 295's you need 2.5mm

 

[Cub.]

I couldn't get them under OZ F1's.

I'm running standard discs with Brembo 4 pots under 15 inch Speedline Williams wheels.

 

[RSprojects]

Well not with 295's you need 2.5mm

I meant wheel spacers not the size of the washers I will need to fit?
Would I get away with any less?
Also you recommended some pads to me? Can't remember what they were??
Cheers Dan

 

[mikekean]

My HiSpec R114 kit with 300x32mm discs fits under OZ f1's and 2118's with no spacers and plenty of clearance. if you want something that will definitely go under with no messing that kit will. But bear in mind they are a race calliper with no dust seals.

 

[Mini182]

Here is a pic of the Brembo's under 15" pro race wheels with standard 280mm discs.