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Default 135i caliper on e90 335i - 05-24-2016, 03:59 PM

Any EXPERIENCED people know what it takes to fit 135i calipers on an e90 335i. I know some people say it's a downgrade but I need to know all of the parts needed to make it work.

If you are going to tell me to "search" please don't
respond because I did. Thanks in advance for helpful replies.


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Default 05-24-2016, 04:01 PM

it fits, rotor size downgrade yes but the 135 caliper is a 6 pot caliper... looks nice too


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Default 05-24-2016, 04:16 PM

Who puts vibrant resonator in their signature?

Anyway, they should be plug and play for the front axle. But why though? For the same money you can get f30 brakes which are better spec'd.


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Default 05-24-2016, 04:29 PM

Vibrant resonators sound awesome. Haters gonna hate and lovers gonna love. Lol


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Default 05-24-2016, 04:46 PM

the f30 bbk is known to give you a soft pedal. And I can get 135i brakes dirt cheap so I'm just looking for what all is necessary as far as rotors, brackets, and any other parts


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Default 05-24-2016, 04:55 PM

Pretty sure the 135 calipers are a downgrade


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Default 05-24-2016, 05:11 PM

Thanks.....downgrade. Anyone with part numbers or parts needed?


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Default 05-24-2016, 05:22 PM

ll you need is the caliper with bracket, and the rotor


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Default 05-24-2016, 05:24 PM

Omarmarji how do I find the bracket? And would I just use a 135i rotor?


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Default 05-24-2016, 05:28 PM

yes just use a 135 rotor and the bracket usualyl comes with the caliper if you get from junkyard or ebay


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Default 05-24-2016, 05:29 PM

Thank you sir


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Default 05-24-2016, 05:48 PM

this forum is turning into e90post...


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Default 05-24-2016, 06:00 PM

how ?


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Default 05-24-2016, 06:07 PM

Because I want technical info and not opinions. Sounds like you need to be on e90post


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Default 05-24-2016, 06:25 PM

my first post on this thread was techincal....


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Default 05-24-2016, 06:40 PM

Sorry omarmarji. That was directed at Cloud9Blue. If he doesn't like this thread he can just click on the next one.p


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Default 05-24-2016, 06:55 PM

Quote:
Originally Posted by M62 to N54
Thanks.....downgrade. Anyone with part numbers or parts needed?
Since you are too stupid to use Google, I did it for you

Quote:
Originally Posted by Dr. G
Before making a bold statement like that at least have basic knowledge of what you are speaking of.

Firstly 6pot caliper means nothing, it's the size of the pistons that you want to look into. The 335i caliper has a larger piston area and will provide a greater clamping force. Your 100-0 braking times will be better with the 335i caliper (vbox verified). The 135i caliper also pushes the brake bias to the rear, which may be undesirable for some.

What's the significance of surface area of the pad do you even know? Surface area has no relevance to coefficient of friction, surface area = kinetic friction. The surface area allows the pad to have a longer life and dissipate heat, but has nothing to do with it's ability to stop the car. What's the point of the pad dissipating heat when the pistons and seals on the calipers melt from heat? Furthermore a 26mm rotor vs a 30mm rotor, HUGE difference in the heatsink characteristics, do you know how to calculate the efficiency of the rotor? If you do please do a calculation and then you'll see what I mean. The ability of the pad to dissipate SLIGHTLY more heat becomes negated by the fact that the rotor can't dissipate as much heat therefore no benefits in terms of brake fade either.

10mm is the difference in rotor diameter, but the brake torque is a function of the clamping point of the piston, so there's an appreciable difference in the brake torque here as well and it becomes a bit more than 10mm based on positioning. The difference between 135i and 335i brakes is about the difference between the 335i and m3 brakes.

SUMMARY:
Performance caliper: less piston area, less brake torque, 4mm thinner rotor, no benefits to brake fade = decreased performance


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Default 05-24-2016, 07:11 PM

I read that thread and that thread and there were more opinions in there than that one. He was arguing with 2 guys who disagreed and had experience to back it


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Default 05-24-2016, 07:11 PM

Makes sense


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Default 05-24-2016, 07:11 PM

Link to thread ?


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Default 05-24-2016, 07:13 PM

Quote:
Originally Posted by Milan
Pretty sure the 135 calipers are a downgrade
I came here for technical data. I don't care what you think or what you read from someone who hasn't done it. Why can't you trolls understand that?


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Default 05-24-2016, 07:45 PM

Quote:
Originally Posted by M62 to N54
I came here for technical data. I don't care what you think or what you read from someone who hasn't done it. Why can't you trolls understand that?
As someone already said, don't expect people to fix your inability to use google and realoem...

And this is a engine subforum, go post that on chassis subforum on e90post. No need to drown us with your stupidity.


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Default 05-24-2016, 07:54 PM

Quote:
Originally Posted by Cloud9Blue
As someone already said, don't expect people to fix your inability to use google and realoem...

And this is a engine subforum, go post that on chassis subforum on e90post. No need to drown us with your stupidity.
Please read my first post and stop trolling this thread. This is my first time running across classless name-calling low lifes on this forum. Please go mod your car and stop posting in my thread.


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Default 05-24-2016, 08:47 PM

Quote:
Originally Posted by M62 to N54
Please read my first post and stop trolling this thread. This is my first time running across classless name-calling low lifes on this forum. Please go mod your car and stop posting in my thread.
See the first reply to your thread on e90post... lol


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Default 05-25-2016, 12:54 PM

Quote:
Originally Posted by M62 to N54
135i Calipers?
OK. 135i calipers perform pretty well on track days with better fluid, track pads, larger rotors and the racing brake piston kit. Steel pistons transfer much less heat than the stock aluminum ones, and less fade as a result. As it is, the 135i boots absolutely disintegrate over time. My car has only seen the track a few times and they look pretty bad.

I haven't done it yet on my brakes, but when it's time to do pads/rotors next, I'll be tuning it all up rather than dropping 2k+ on a proper lightweight BBK.

That said, the bias will be different if you're slapping them on a 335i. No idea what that would be. It's damn perfect on my 135i as is though, but I wouldn't want to run them stock if I was doing track days every other week.

How much can you get a set of rotors, brackets, and calipers for? Add that to the cost of proper pads, SS lines, and steel pistons and make sure the numbers add up and that it wouldn't be better to go aftermarket.


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