True, except for one thing (if you recall I'm lazy) with the 996 calipers and alike I can change out my front pads in 15 min. and it's EASY! However as you know with the stock sliding calipers that isn't the case. Oh, I also save 7 lbs per corner to boot
As for pedal feel it isn't much better. Between the slop in the booster and it being over boosted is the main reason.
soooooooooo...it doesn't feel any better than stock? or does it?
I already noted my thoughts in the OP
For what it's worth, I agree with the above calculations. (I did my own version of this, starting with the fact that pressure on both sides of the rotor *must* be equal...hence 1 piston or 4 piston design, sliding or fixed caliper, it doesn't matter; total the pressure on one side, and double it. That'll be the total pressure.)
So assuming all things equal (same pads, rear calipers, etc) I take the numbers above, and get 4546/5654=0.8, or 20% less pressure on the front rotor (brembo less than OEM). But we really want brake torque, and the new calipers are paired with rotors that are 325mm/315mm larger = 3% longer lever arm. So, roughly, the brembo calipers will move the brake bias to the rear about 17%. That's quite a bit (if my calcs are right), and doesn't seem like a great idea!
Make sense?
Standard calipers + good pads + good fluid + good lines + CSL rotors + 345mm caliper adaptors is the least expensive way to upgrade the brakes on these cars.
https://www.ecstuning.com/News/BMW_E...997_1998_1999/
'96 M3, S50B32, 6MT
+ good stuff
FYI, Apex Arc-8 17" wheels will fit over the Brembo/RallyRoad setup without shaving 12mm off the Brembo caliper mounting bosses. Now, do I REALLY want E46 M3 CSL 345mm rotors? I doubt it.
Depends what you're trying to achieve of course.
I have 18" rims so no problems with clearance either way. And if I read Foda420's comment and signature correctly he's using 345mm rotors with 17" Apex ARC-8's and stock callipers. All other things being equal, his car should stop faster than yours.
'96 M3, S50B32, 6MT
+ good stuff
And if there's enough "stopping power" with the OEM sized rotor? (And, there is.)
Breaking on the limit down a steep incline is an example I can think of. Needless to say, it seems we both agree that a BBK isn't going to make a significant difference to your stopping power.
However, for those that feel the need to upgrade there are less expensive options.
'96 M3, S50B32, 6MT
+ good stuff
I estimate the weight drop at around 8lbs per corner with the floating E46 M3 rotors over a bone stock E36 M3 setup
-Rich-
I'd like to see some test results on these brake upgrades. Shouldn't be too hard to set something up to test stopping distance. Stop watch and you can test stopping time.
Bleed your cooling system http://forums.bimmerforums.com/forum....php?t=1709482The ULTIMATE OEM Alarm/Keyless thread http://forums.bimmerforums.com/forum....php?t=1792200
I doubt these will change stopping distance any at all (except for POSSIBLY after multiple high speed stops). I expect results will be subjective....brake feel, trail braking, etc. Ease of changing pads, brake pad longevity, etc.
^ This.
No improvement in stopping distance (same size rotor), stopping distance is determined by your tyres (and ABS software), not your brakes (almost any brake can lock a wheel) BUT:
1. Pad changes are easier with a 'proper' BBK
2. Unspring weight is less with a refined caliper
3. Maybe better pad choices (?)
4. At the absolute heat limit (!) you may get more consistant performance
5. Looks good
Brake feel should be the same if the systems are set up properly but a 'proper' BBK might be easier to set up for more consistent feel.
Detractions are:
1. Brake bias is changed and this may not be for the better
2. Cost
3. Pad choices may be limited (?)
Personal choice - but it's an expensive choice. Just make the decision for the right reasons.
'96 M3, S50B32, 6MT
+ good stuff
a stiffer fixed caliper definitely has better feel.
I was glad to get rid of the slider set up.
FYI
I have Apex ARC-8 17x9.5 and they wont fit over my front Brembo/RallyRoad setup with 12mm shaved off the Brembos and running OEM E46M3 rotor.
They hit the spokes.
Maybe with the E46M3 CSL 345mm rotors they would fit since the calipers are moved out 12mm radially where the wheel spokes have moved far away enough from the caliper.
Ahh....I test fitted with 12mm spacers.
Whoa, so this works huh? I have 17x9.5 +35 Apex Arc-8's and I'm running an 15mm spacer due to suspension clearance. I don't need to shave off 12mm huh? This is awesome, I'd like to run the larger rotor also.
Whoa... Competition Package rotors are $211 on rock auto... yikes
Last edited by Inflame; 11-23-2015 at 11:27 AM.
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