Porsche brakes... out of curiousity.

[royalflush313]

Say I had calipers off a 993 C2 lying around. What would it take to use it in a 4 lug e30?
thanks.

[Stu]

Re: Porsche brakes... out of curiousity.

Say I had calipers off a 993 C2 lying around. What would it take to use it in a 4 lug e30?
thanks.

Custom hats and large (maybe 315-330mm) rotors with the same width as the 993 rotors (28mm I believe, maybe 32). You'd need a wheel that will clear the brakes too, and custom caliper brackets. It's not impossible, but it will be expensive.

It is also an utter waste of time on a 318is, because brakes are the last thing the 18 needs more of. ('cept mine) ;)

[royalflush313]

Re: Porsche brakes... out of curiousity.

Say I had calipers off a 993 C2 lying around. What would it take to use it in a 4 lug e30?
thanks.

Custom hats and large (maybe 315-330mm) rotors with the same width as the 993 rotors (28mm I believe, maybe 32). You'd need a wheel that will clear the brakes too, and custom caliper brackets. It's not impossible, but it will be expensive.

It is also an utter waste of time on a 318is, because brakes are the last thing the 18 needs more of. ('cept mine) ;)

Interesting. So its possible. That's all I need to know :D

[e30Matt]

It'd stop in like... 0 feet.

[royalflush313]

It'd stop in like... 0 feet.

318s are slow. It allows for an excuse for an engine swap. Before that, I gotta make sure the car stops and handles properly.

plus, if you had 993 calipers lying around, you'd wanna use it too. No matter how slow the car is. . . :twisted:

[Rob]

depends on the usage. For a car that sees a lot of track time, and is fast enough that brake fade is an issue, big brakes are great. for any other reason, i'd call them bling, and nothing more.

[Stu]

depends on the usage. For a car that sees a lot of track time, and is fast enough that brake fade is an issue, big brakes are great. for any other reason, i'd call them bling, and nothing more.

Right on. And assuming you have some driving ability under your belt, you should be able to really maximize the cars braking with the factory setup.

[EVOIIIM3]

You will loose hp by doing this.

Since you can't fix the balance, and adjust the master cylinder to match, just get a "kit" for your car.

If you can find a mechanical engineer, to do the math and set it all up, it's just not worth it.

Expect to spend some money...
Custom SS brake lines X2 $100
Rotor hat x2 $300
rotor x2 $300
any other "things" that pop up.

Your better off with some willwood superlights, and a 12in rotor.

[BeirBrennerE30]

I have the 993 turbo (322mm rotors) calipers in the front and boxster S (299mm)calipers in the rear... car stops on a dime.... and i highly recomend this mod if you are going to swap engines

you will need custom lines... i recomend buying e30 ss lines and stock porshe lines then swapping the porsche fitting onto the SS lines... not to difficult...

Custom brackets... find a good machinist, take some good measure ments and youa re on your way

same with the front hats...

The Rotors can be no bigger than 322mm in diameter or the calipers wont fit under a 17" wheel.... as it is you will need a 15+mm spacer for your wheel to clear the caliper

order a rear rotor and hat from Movit... its not worth the agravation to get your own

heavy modification to the rear hub to get the ebrake to work with the rotor...

25mm master is a must as well as a porportioning valve.... i recomend the wilwood one

[royalflush313]

I have the 993 turbo (322mm rotors) calipers in the front and boxster S (299mm)calipers in the rear... car stops on a dime.... and i highly recomend this mod if you are going to swap engines

you will need custom lines... i recomend buying e30 ss lines and stock porshe lines then swapping the porsche fitting onto the SS lines... not to difficult...

Custom brackets... find a good machinist, take some good measure ments and youa re on your way

same with the front hats...

The Rotors can be no bigger than 322mm in diameter or the calipers wont fit under a 17" wheel.... as it is you will need a 15+mm spacer for your wheel to clear the caliper

order a rear rotor and hat from Movit... its not worth the agravation to get your own

heavy modification to the rear hub to get the ebrake to work with the rotor...

25mm master is a must as well as a porportioning valve.... i recomend the wilwood one

can i ask you how much it cost you, excluding the calipers?

[BeirBrennerE30]

i bought a kit from Movit so i cant give you an exact price... but i think that you are talking a couple grand for the setup and some pretty extensive modification is needed to get everything working and balanced

even with the kit it took me a better part of a week to get the brakes on and functional working on the car for about 7 hours a day

im not trying to scare you out of it but just be prepared for serious time and money... i feel the results are worth it though

[Mystikal]

as it is you will need a 15+mm spacer for your wheel to clear the caliper

Well that was a general statement. :?

[BeirBrennerE30]

as it is you will need a 15+mm spacer for your wheel to clear the caliper

Well that was a general statement. :?

How so??? those front calipers are super wide so the front wheels need to be set out wider... however the distance that they need to be set out is completely dependednt on what type of wheels you have... Personally i need a 20mm spacer since BBS RX have terrible spacing for calipers because of their spoke design... but most other quality rims will only need a 15mm spacer to clear the caliper... rims with huge dish will will most likely need 25mm spacers... you can get away with out spacers if you have custom rims made by HRE, Fikse, IForge or some other wheel maker like that that can make rims with the exact amout of caliper clearance you need ...however to my knowledge no one on this board has custom 2/3-piece forged rims.... so i made kinda a blanket statement saying you will probably need atleast a 15mm spacer depending on what kind of 17" rim you run

i hope this clears up what i meant

[Mystikal]

so i made kinda a blanket statement saying you will probably need atleast a 15mm spacer depending on what kind of 17" rim you run

That's what I meant, it's wayyy too general of a statement. There are ET18 17" wheels around, as well as ET45 ones. It's like saying "you have a BMW, you need premium fuel", it's totally dependent on the actual model. ;)

[BeirBrennerE30]

so i made kinda a blanket statement saying you will probably need atleast a 15mm spacer depending on what kind of 17" rim you run

That's what I meant, it's wayyy too general of a statement. There are ET18 17" wheels around, as well as ET45 ones. It's like saying "you have a BMW, you need premium fuel", it's totally dependent on the actual model. ;)

i guess i see what your saying but the offset doesnt really matter here its the distance between the face of the rotor and the back of the wheel thats the problem and e30s just were not designed with enough room...