Ceika BBK

[Kev608]

Has anybody used these brakes on an F8X? The specs look impressive and the price is too good to be true. This is slightly concerning, of course, since they are half the price of AP, StopTech, Brembo, etc. and have 8 piston front/6 piston rear calipers.

I've attached a list of pads that they said work with their BBK. I'm sure others could be cross referenced. I'm seriously considering giving them a shot!

https://us.ceika-store.com/products/cbk156

[LOW4LYF]

Reviews looking promising!

[aBMWfan]

I just spec’d a 6 front/ 4 rear kit with a couple options such as floating rotors, high performance pads, and the 380 rotor size all 4 and a couple other things. Came out to $5400 which yes is a good value but within a couple grand of the well known brands

[Kev608]

Not sure what options you selected. The kit I made with eight piston fronts and six piston rears on 380mm was only $4,900.

$8-9,000 for AP, Sparta Triton, Brembo GT, and Stoptech Trophy.
$6,400 for StopTech standard kit, which really is all I need.

[Kev608]

StopTech piston sizes with 380mm rotors: 36, 30, 30mm front and 30, 28mm rear.
Crika piston sizes with 380mm rotors: 36, 32, 30, 28mm front and 36, 32, 30mm rear.
Ceika piston sizes with 365mm rotors: 36, 30, 28, 28mm front and 32, 28, 25mm rear.

[Kev608]

I have sent the templates from Ceika to Apex and they assured me that the 380mm rotors will fit front and back. The setup I'm ordering is:

Apex EC-7R 18x10" with Ceika 8 large piston 380mm rotors
Apex EC-7R 18x11" with Ceika 6 large piston 380mm rotors

[aBMWfan]

Originally Posted by Kev608

I have sent the templates from Ceika to Apex and they assured me that the 380mm rotors will fit front and back. The setup I'm ordering is:

Apex EC-7R 18x10" with Ceika 8 large piston 380mm rotors
Apex EC-7R 18x11" with Ceika 6 large piston 380mm rotors

There’s got to be a reason why every BBK is 6/4 not 8/6

[LOW4LYF]

Originally Posted by Kev608

I have sent the templates from Ceika to Apex and they assured me that the 380mm rotors will fit front and back. The setup I'm ordering is:

Apex EC-7R 18x10" with Ceika 8 large piston 380mm rotors
Apex EC-7R 18x11" with Ceika 6 large piston 380mm rotors

I really love when people go a different route!

Keep us posted. I would love to get the 405mm 8/6 Piston upgrade!

[JamesGames]

Originally Posted by Kev608

I have sent the templates from Ceika to Apex and they assured me that the 380mm rotors will fit front and back. The setup I'm ordering is:

Apex EC-7R 18x10" with Ceika 8 large piston 380mm rotors
Apex EC-7R 18x11" with Ceika 6 large piston 380mm rotors

Rotors shouldn't have any problems fitting, as OEM non CCB is 380mm front 370mm rear. It's the caliper clearance that usually has issues.

[Kev608]

Originally Posted by LOW4LYF

I really love when people go a different route!

Keep us posted. I would love to get the 405mm 8/6 Piston upgrade!

I will definitely update once I receive them. If I used 20" wheels I'd definitely do the 405mm kit.

Originally Posted by JamesGames

Rotors shouldn't have any problems fitting, as OEM non CCB is 380mm front 370mm rear. It's the caliper clearance that usually has issues.

Right, sorry, what I meant is that I don't have to use the 365mm rotors to make them fit. The large 8 piston calipers and large 6 piston calipers on 380mm rotors will fit the 18" Apex EC-7R wheels.

[Kev608]

Hawk makes DTC-70 and DTC-60 pads for the rear. The best they make for the front is DTC-30. Should I do DTC-60 in the rear so the bite is a bit less uneven?

[DavidStr]

I have considered that kit too, only issue is the rear calipers have a piston area that is way bigger than the OEM set up or CCB 4 piston calipers.
this can affect brake feel and bias.
% of increase in not proportioned to the front, that is why I didn't go for them

[Kev608]

Originally Posted by DavidStr

I have considered that kit too, only issue is the rear calipers have a piston area that is way bigger than the OEM set up or CCB 4 piston calipers.
this can affect brake feel and bias.
% of increase in not proportioned to the front, that is why I didn't go for them

I'd prefer for the rears to grab a little more than the fronts. The rear tires have more contact with the road and weigh more. This also helps to keep the rear end from getting squirrelly under heavy braking into a corner.

I think this could be modulated on the street by using a rear pad with less initial bite and a lower friction coefficient?

[DavidStr]

Yes you can of course use different calipers to compensate.
Now I don't remember the numbers but compared to the stock ones the rear piston are is massively increased.
Front is slightly Increased ,rear is hugely increased.
It seems it is a caliper more suited to front use.
Or maybe it is a caliper for front use they also use on the back.
This is what put me off, but maybe it won't be a problem at all...

[DavidStr]

Yes you can of course use different calipers to compensate.
Now I don't remember the numbers but compared to the stock ones the rear piston are is massively increased.
Front is slightly Increased ,rear is hugely increased.
It seems it is a caliper more suited to front use.
Or maybe it is a caliper for front use they also use on the back.
This is what put me off, but maybe it won't be a problem at all...

[Kev608]

Originally Posted by DavidStr

Yes you can of course use different calipers to compensate.
Now I don't remember the numbers but compared to the stock ones the rear piston are is massively increased.
Front is slightly Increased ,rear is hugely increased.
It seems it is a caliper more suited to front use.
Or maybe it is a caliper for front use they also use on the back.
This is what put me off, but maybe it won't be a problem at all...

The stock blue calipers have 4x 40mm pistons. The rear holds 2x 44mm pistons.

This is roughly 5,027mm² up front and 3,041mm² in the rear.

The Ceika kit would be 6,290mm² up front and 5,058mm² in the rear.

This is an increase of 26% front and 66% rear. That sounds pretty unbalanced, til we look at other manufactures.

The StopTech kit would be 4,863mm² up front and 2,645mm² in the rear.

This is actually a 4% front and 13% rear DECREASE in piston area size, though the pressure will be spread more evenly across a larger pad.

Personally, I feel like the bump in rear braking pressure will help to balance the car better and stop it quicker. I'd put my money on the Ceika kit outperforming the StopTech kit all day, and for quite a lot less money invested.

[Kev608]

Sorry, I should have compared back to front on each kit. That is a better analysis for the sake of this thread.

Stock = 1.65:1
StopTech = 1.84:1
Ceika = 1.24:1

So, with all of the kits you're getting more pressure to the front pads, but the Ceika kit has a lower ratio. You wouldn't need to use a different compound in the rear to make up for the imbalance.

[Kev608]

AP Racing is another popular choice, though well out of my price range.

Front piston area of 9960/9968 = 5,022mm²
Rear piston area of 9449 = 3,101mm²

This is almost the same front area with a very slight bump up in the rear.

Also, keep in mind that they use a smaller rear disc, meaning you'll have less stopping power in the rear.

[DavidStr]

I am pretty sure it will perform well with good pads.
I have always believed that many big names are not worth the extra money .maybe on a race car.
I have used K sport in the past with great results

[Kev608]

Originally Posted by DavidStr

I am pretty sure it will perform well with good pads.
I have always believed that many big names are not worth the extra money .maybe on a race car.
I have used K sport in the past with great results

The Ceika rear pads are available from Hawk in Performance Ceramic, HPS, HPS 5.0, HP+, and DTC 60, 70, or 80. The front Hawk choices are not as great, with only Performance Ceramic, LTS, HPS, HPS 5.0, and DTC-30. I'll most likely run DTC-60 rear and 30 front.

[DavidStr]

Only note that rear calipers hav 40mm pistons, not 44...

[Kev608]

Originally Posted by DavidStr

Only note that rear calipers hav 40mm pistons, not 44...

Where did you find this info? I found 40mm front and 44mm rear for the blue brembo with steel rotors.