Six piston Big Brake kit recommendation. Brembo GT / Sparta Triton R / AP Racing

[MPOOR]

Hi Guys

I am about to upgrade my front brake to a set of six-piston brake kit.

I would like some recommendation regarding which kit I should go for.

Currently considering Brembo GT kit, Sparta Triton R and AP racing radical 2.

I really like the material and piston design from Sparta, they say it is the only

six-piston kit using aerospace grade forged aluminum CNC. But some other

people recommended Brembo GT. Also AP Racing Radical 2 system looks

pretty promising too, Caliper looks really strong with those center bridge.

I do quite a lot of track driving and I have used aftermarket brake pads /

better brake oil and aftermarket brake line combination for the past 31000

miles and finally would like to upgrade it.

Anyone who has a first-hand experience with above-mentioned kit ~I would

appreciate some feedback.

Thank you and drive safe.

[F3IGHTY]

Essex Radi-Cal AP 9668 - In a different league compared to everything you mentioned.

[M3SQRD]

I agree with F3IGHTY - the Essex/AP Racing 9668 brake kit is phenomenal! I’m running the 9668/9449 setup on my M4.

[Mandi90TT]

Originally Posted by nysid2007

I do quite a lot of track driving and I have used aftermarket brake pads /

better brake oil and aftermarket brake line combination for the past 31000

miles and finally would like to upgrade it.

I'll ask the same question I've asked others: what exactly are you doing on the track that you think you need to upgrade the rotors/calipers?

I use PFC-08s, Castrol SRF fluid, and stainless steel lines, and I have had zero problems with brake fade at the track. This is on NT01 tires, and an ECU flash (more HP, so more speed), and I have no problems at all (with brakes; my driving skills, of course, could use some improvement...)

The stock brakes are just so good that I fail to understand the need for a BBK.

[MPOOR]

Originally Posted by F3IGHTY

Essex Radi-Cal AP 9668 - In a different league compared to everything you mentioned.

Thank you for the recommendation I will look it up ~

But can't afford 1000000000 dollar set ~

[MPOOR]

Originally Posted by M3SQRD

I agree with F3IGHTY - the Essex/AP Racing 9668 brake kit is phenomenal! I’m running the 9668/9449 setup on my M4.

Thank you for the recommendation, will check it out ~

Originally Posted by Dave 90TT

I'll ask the same question I've asked others: what exactly are you doing on the track that you think you need to upgrade the rotors/calipers?

I use PFC-08s, Castrol SRF fluid, and stainless steel lines, and I have had zero problems with brake fade at the track. This is on NT01 tires, and an ECU flash (more HP, so more speed), and I have no problems at all (with brakes; my driving skills, of course, could use some improvement...)

The stock brakes are just so good that I fail to understand the need for a BBK.

I am trying to achieve more reliable, better easy, roomy smooth braking

procedure along with weight saving on all four corners.

I have used various aftermarket brake combinations like you mentioned,

Ferodo DSUNO / Pagid RSL1 / EBC Yellow, Blue, Orange / Carbotech XP24

with XP12 on ther rear, along with Project Mu GEfour 335 coupled with

aftermarket SS brake lines from Earls/ EBC /Goodridge / Tarox for the past

30K miles on F80 M3 for the past 20 months.

Above set up felt sufficient in my case as well but the OEM brake rotors were

not up to the task to handle above mentioned brake pads.

Especially after trying out my friends E92 M3 equipped with Brembo GT 6 /4

piston set up. The braking procedure felt much much roomier and easy.

You just dont have to beat up the brake as much as the stock brake.

Setting up the car with BBK kit with equally matching Tire set up along with

same brake pads that are for BBK felt also different.

That's why I'm in the market for searching a BBK set.

Finally, because you felt the no need for a BBK set does not necessarily

indicate nobody needs it.

Like you mentioned, I don't drive like a pro Randy Pobst nor drift the shit out

of my rear tires like Chirs Harriss does, but I drive at the track sufficient

enough to feel the difference when changes are made to my car set up.

[MPOOR]

I think I should go with Sparta Triton R ~ AP Racing 9668 is an amazing kit ~but the price is out of my range. too sad.

[M3SQRD]

If you’re looking to save weight then the Essex/AP Racing 9660 or 9668 is the way to go. The 9660 kit weighs less than the 9668 kit (still lighter than stock by ~10+ lb). The biggest functional difference between the 9660 and 9668 kits is the 9660 uses a 17 mm-thick pad vs. a 25 mm-thick pad in the 9668. The 9668 is an endurance setup so the caliper is physically larger and weighs more than the 9660. Both use the same 372 mm-diameter 84-vane rotor - you don’t need a larger diameter rotor! Pad shape is identical and available from all top racing pad manufacturers.

[M3SQRD]

Originally Posted by nysid2007

I think I should go with Sparta Triton R ~ AP Racing 9668 is an amazing kit ~but the price is out of my range. too sad.

Check here...https://f80.bimmerpost.com/forums/sh....php?t=1521281

[F3IGHTY]

Originally Posted by nysid2007

I think I should go with Sparta Triton R ~ AP Racing 9668 is an amazing kit ~but the price is out of my range. too sad.

Brakes usually aren't the place to look for bargains.

[tszene]

Maybe it's just me but I warped my stock steel rotors the first time I went to summit point in Virginia. Then I had the Brembo BBK front and back with 380 rotors Six pistons front and 4 back. I did about 40 track days on those and other than brake pads, I didn't have to do anything else. But with all that I still think the CCB s are the best. On the new one I got the CCB and took the car to the "ring" and then 6 hours at Spa-Francorchamps with no issue and they felt amazing. Just my 2 cents.

[rpmaddict]

There is absolutely no comparable system competing with AP. I shaved 4 seconds off my lap time at Sonoma with an AP brake system alone, in my C5 race car. Thats from 1.49:00 to 1:44.45. My recommendation is to call Jeff at Essex.

[mcvaughan]

My vote is also for the AP / Essex setup. Been very pleased with mine.

[RustySeatbelt]

Does anyone know if the Sparta Triton's allow you to retain your stock parking brake? One of the bigger reason's I'm leaning towards the AP right now.

[aBMWfan]

Originally Posted by RustySeatbelt

Does anyone know if the Sparta Triton's allow you to retain your stock parking brake? One of the bigger reason's I'm leaning towards the AP right now.

Brembo does

[Fast4d]

which caliper have rubber seals?

[aBMWfan]

Originally Posted by Fast4d

which caliper have rubber seals?

Brembo GT and AP Radical does. I just received ti brake pad shims and going to use them on my Brembo’s so it won’t be as much of an issue

[salsakka]

Originally Posted by nysid2007

Thank you for the recommendation, will check it out ~

I am trying to achieve more reliable, better easy, roomy smooth braking

procedure along with weight saving on all four corners.

I have used various aftermarket brake combinations like you mentioned,

Ferodo DSUNO / Pagid RSL1 / EBC Yellow, Blue, Orange / Carbotech XP24

with XP12 on ther rear, along with Project Mu GEfour 335 coupled with

aftermarket SS brake lines from Earls/ EBC /Goodridge / Tarox for the past

30K miles on F80 M3 for the past 20 months.

Above set up felt sufficient in my case as well but the OEM brake rotors were

not up to the task to handle above mentioned brake pads.

Especially after trying out my friends E92 M3 equipped with Brembo GT 6 /4

piston set up. The braking procedure felt much much roomier and easy.

You just dont have to beat up the brake as much as the stock brake.

Setting up the car with BBK kit with equally matching Tire set up along with

same brake pads that are for BBK felt also different.

That's why I'm in the market for searching a BBK set.

Finally, because you felt the no need for a BBK set does not necessarily

indicate nobody needs it.

Like you mentioned, I don't drive like a pro Randy Pobst nor drift the shit out

of my rear tires like Chirs Harriss does, but I drive at the track sufficient

enough to feel the difference when changes are made to my car set up.

Originally Posted by nysid2007

Thank you for the recommendation, will check it out ~

I am trying to achieve more reliable, better easy, roomy smooth braking

procedure along with weight saving on all four corners.

I have used various aftermarket brake combinations like you mentioned,

Ferodo DSUNO / Pagid RSL1 / EBC Yellow, Blue, Orange / Carbotech XP24

with XP12 on ther rear, along with Project Mu GEfour 335 coupled with

aftermarket SS brake lines from Earls/ EBC /Goodridge / Tarox for the past

30K miles on F80 M3 for the past 20 months.

Above set up felt sufficient in my case as well but the OEM brake rotors were

not up to the task to handle above mentioned brake pads.

Especially after trying out my friends E92 M3 equipped with Brembo GT 6 /4

piston set up. The braking procedure felt much much roomier and easy.

You just dont have to beat up the brake as much as the stock brake.

Setting up the car with BBK kit with equally matching Tire set up along with

same brake pads that are for BBK felt also different.

That's why I'm in the market for searching a BBK set.

Finally, because you felt the no need for a BBK set does not necessarily

indicate nobody needs it.

Like you mentioned, I don't drive like a pro Randy Pobst nor drift the shit out

of my rear tires like Chirs Harriss does, but I drive at the track sufficient

enough to feel the difference when changes are made to my car set up.

I'm on the same boat, where last week my stock rotors and pads failed on me after about 4 hot laps on a fairly short circuit just outside of Toronto.

The front rotors looked exactly like what you have on your pictures.

I'm looking at getting designated track pads (Pagid RSL29 came highly recommended), but I'm not sure how they would perform on a stock set of rotors.

Some feedback on what rotors to use would be greatly appreciated.

[MPOOR]

Originally Posted by rpmaddict

There is absolutely no comparable system competing with AP. I shaved 4 seconds off my lap time at Sonoma with an AP brake system alone, in my C5 race car. Thats from 1.49:00 to 1:44.45. My recommendation is to call Jeff at Essex.

Damn ~~~~~ Money well spent I guess ~~~ 4 seconds off

[ninekrpm]

who is a good dealer that could offer some type discount for the AP brake setup?

[MPOOR]

Originally Posted by salsakka

I'm on the same boat, where last week my stock rotors and pads failed on me after about 4 hot laps on a fairly short circuit just outside of Toronto.

The front rotors looked exactly like what you have on your pictures.

I'm looking at getting designated track pads (Pagid RSL29 came highly recommended), but I'm not sure how they would perform on a stock set of rotors.

Some feedback on what rotors to use would be greatly appreciated.

I would save the money and move towards aftermarket thicker rotors ~ RB rotors seem very durable. Stock OEM disc ~ will always fail ~ They are not up to the task for some serious track driving. With aftermarket track/endurance pad ~ It will always kill the OEM disc WHEN DRIVEN lap after lap at the track. It will warp and crack always.
I will go aftermarket rotors.

[aBMWfan]

Originally Posted by nysid2007

I would save the money and move towards aftermarket thicker rotors ~ RB rotors seem very durable. Stock OEM disc ~ will always fail ~ They are not up to the task for some serious track driving. With aftermarket track/endurance pad ~ It will always kill the OEM disc WHEN DRIVEN lap after lap at the track. It will warp and crack always.
I will go aftermarket rotors.

And some Ti pad shims for the calipers as well, as we’ve seen the finish/ pistons will not hold-up well overtime on stock and brembo calipers