850i disks/ caliper on 16" wheels

[grave77]

I would like to install 850 brake system on my dads car which has 16" rims, will it fit? or min is 17"? thanks

[BigKriss]

the 850i comes with 16" wheels as stock, so i assume they fit okay. i could be wrong mate.

[Interceptor]

the 850i comes with 16" wheels as stock, so i assume they fit okay. i could be wrong mate.Not all rims are the same. Maybe it fits the stock 16" rims, but that doesn't mean it will fit some other design. When doing a big break upgrade it's always the safest bet to go with the 17" rims - they also offer better cooling cause the calipers and the discs are not a tight fit inside the rim. But, I guess you won't be sure until you try...

[Jeff N.]

... brakes fit under BMW 16" wheels. The 4 piston setup may require 17" wheels. The 4 piston setup came on the 850CSi and some 840s.

Jeff


I would like to install 850 brake system on my dads car which has 16" rims, will it fit? or min is 17"? thanks

[Interceptor]

... brakes fit under BMW 16" wheels. The 4 piston setup may require 17" wheels. The 4 piston setup came on the 850CSi and some 840s.
I've read somewhere that both setups offer the same breaking performance. regardles of the number of pistons?

[DrewZ]

Both types of E31 brakes will fit under certain types of 16" wheels. I have fit the E31 4-Piston Brembos under: 16" E38 bottlecap wheels; 16" E31 turbine wheels and 16" BBS RK wheels.

As far as braking performance, I've had both the E31 single-pistons and the E31 Brembos. The Brembos are much easier to modulate. As a bonus, the aluminum Brembos are MUCH lighter than the cast iron single-pistons.

Drew Zacharda

6-speed Touring

http://members.aol.com/apzjd/16RKsummersmall.jpg (http://www.bmwe34.net/ASP/DURegistry/RegDetail.asp?id=100)



I've read somewhere that both setups offer the same breaking performance. regardles of the number of pistons?

[grave77]

well at high speeds the 4pistons are way better than the single, i have the 4 pistons on my e34 535, still the single piston is powerful and offers grate braking than the OEM system on either e32 or e34.

[M5Greg]

This has been great info. I've just finished a complete engine rebuild on my M5 now a 3.7 liter. I've ordered the Dinan Stg.2 and some K-Mac camber plates, so the brakes are next. I've been leaning towards the 850 Brembo's mostly because of their weight savings and pad selection. A friend has the N-ring brakes with the 345 rotors and he has to have track pads custom made.

Greg S.

[DrewZ]

As big & beautiful as the N-ring brakes are, their cast iron calipers weigh more than twice as much as the E31 Brembos. If you do serious track time, Hawk pads are readily available for the Brembos -- Blue, Black, HT-10 and HT-14. However, if you plan in installing the E31 Brembos on an M5, you'll need to modify the rotor to accomodate the rotor locating pin in the M5 hubs.
Drew Zacharda

6-speed Touring

http://members.aol.com/apzjd/16RKsummersmall.jpg (http://www.bmwe34.net/ASP/DURegistry/RegDetail.asp?id=100)




This has been great info. I've just finished a complete engine rebuild on my M5 now a 3.7 liter. I've ordered the Dinan Stg.2 and some K-Mac camber plates, so the brakes are next. I've been leaning towards the 850 Brembo's mostly because of their weight savings and pad selection. A friend has the N-ring brakes with the 345 rotors and he has to have track pads custom made.

Greg S.

[grave77]

what's the difference between the 4 piston BMWs and Brembos? braking wise, I know they have different weights

[grave77]

Well ... I just wanted to thank you all for your advice, the brakes fitted just right without any chance to hit the rims ... this can confirm to anyone who wills to install the same system on his car in the future. Cheers to you all ... :)

[M5Greg]

Glad it's working out. How does it feel? How does it look? Here's a good link to brake upgrade info: e34 brakes (http://www.bmwe34.net/e34main/upgrade/brakes.htm)

Greg S

[M5Greg]

However, if you plan in installing the E31 Brembos on an M5, you'll need to modify the rotor to accomodate the rotor locating pin in the M5 hubs.
Drew Zacharda

6-speed Touring

http://members.aol.com/apzjd/16RKsummersmall.jpg (http://www.bmwe34.net/ASP/DURegistry/RegDetail.asp?id=100)



Is this true? I've read a lot of info on this upgrade and that modification isn't mentioned anywhere I've looked.

TIA,Greg

[grave77]

well ... first it didn't feel that strong ... sure cuz I had to bed them ... after bedding the brakes it felt much stronger ... the difference is that u need to apply less pressure for the same amount of braking of the old system. also braking from high speeds to zero is way better ...
I know this link from Brunos website " the note there was to use 17" rims" and that's why I started this post from the first place.

this upgrade was made for my dads car E32 735i, the car have the 740i 96 16" rims.

as for me I had those long time ago with 4 piston calipers.