The Truth About BBK's
#17
#19
good read, let me ask what you guys think of this BBK? How is the bias on these brakes?
8 piston 380mm/15 inch front 2 piece floating rotors
6 piston 356mm/14 inch rear 2 piece floating rotors
https://g35driver.com/forums/brakes-...t-red-bbk.html
http://my350z.com/forum/brakes/43954...us-prices.html
8 piston 380mm/15 inch front 2 piece floating rotors
6 piston 356mm/14 inch rear 2 piece floating rotors
https://g35driver.com/forums/brakes-...t-red-bbk.html
http://my350z.com/forum/brakes/43954...us-prices.html
#20
good read, let me ask what you guys think of this BBK? How is the bias on these brakes?
8 piston 380mm/15 inch front 2 piece floating rotors
6 piston 356mm/14 inch rear 2 piece floating rotors
https://g35driver.com/forums/brakes-...t-red-bbk.html
http://my350z.com/forum/brakes/43954...us-prices.html
8 piston 380mm/15 inch front 2 piece floating rotors
6 piston 356mm/14 inch rear 2 piece floating rotors
https://g35driver.com/forums/brakes-...t-red-bbk.html
http://my350z.com/forum/brakes/43954...us-prices.html
#21
I also feel that after piston vs rotor sizing is engineered, the quality of the kits comes down to materials and durability (and part replacement). Thats also where I think StopTech comes out on top, is they actually put a lot of engineering into their caliper design, the brackets and the float of the rotors and do so per specific kit. I don't know how much of it was advertising fluff, but the indepth review and install Modified did on their race-prepped 350Z project was amazing (July issue maybe?).
Wilwood is good, but I think they are relying on their grassroots and nascar following. Their calipers are nice, but beyond that I dont recall seeing a lot of new development from them lately. I guess for being lower priced then Stop-Tech they make a great alternative if your pockets dont reach that far.
In terms of Endless and Rotora, performance and engineering aside, I've heard they are hard to get replacement parts for, same goes for AP-Racing.
As for RacingBrake, I like they're new to market approach, especially in their rotor design, but from what I have seen and heard they still have some growing pains to go through in terms to their calipers. Which might just be a case of bias engineering per chassis design or customer education.
Wilwood is good, but I think they are relying on their grassroots and nascar following. Their calipers are nice, but beyond that I dont recall seeing a lot of new development from them lately. I guess for being lower priced then Stop-Tech they make a great alternative if your pockets dont reach that far.
In terms of Endless and Rotora, performance and engineering aside, I've heard they are hard to get replacement parts for, same goes for AP-Racing.
As for RacingBrake, I like they're new to market approach, especially in their rotor design, but from what I have seen and heard they still have some growing pains to go through in terms to their calipers. Which might just be a case of bias engineering per chassis design or customer education.
#22
good read, let me ask what you guys think of this BBK? How is the bias on these brakes?
8 piston 380mm/15 inch front 2 piece floating rotors
6 piston 356mm/14 inch rear 2 piece floating rotors
https://g35driver.com/forums/brakes-...t-red-bbk.html
http://my350z.com/forum/brakes/43954...us-prices.html
8 piston 380mm/15 inch front 2 piece floating rotors
6 piston 356mm/14 inch rear 2 piece floating rotors
https://g35driver.com/forums/brakes-...t-red-bbk.html
http://my350z.com/forum/brakes/43954...us-prices.html
#23
FWIW....
All the bias calculating from only rotor size and piston area can be out the window with a pad change. For the guy who reads that Brand X kit pushes 2% more brake to the rear....he may already have more (or less) than this in reality based upon his current (and future front) pad choice. 'Typically' the calculations are based upon a common Cf for the pad to make this easier. But....one can easily alter factory bias by simply elevating the rear pad Cf alone.
While the ST testing should be applauded for its results the net result as mentioned can be achieved by other means. Step back a moment and grasp the true purpose of that test; not to teach you about how brakes work....but to sell you product. (never overlook that in any test or comparison) And it seems do be doing a good job of it still about ten years later- a very effective campaign I must admit.
The choice of master cylinder someone mentioned has nothing to do with brake bias- unless it has a twin set up the fronts and rears get the same input line pressure. Bias in the case of the oe production car is based only on the wheel specs.
As a general rule; increase rotor dia, decrease piston area, tune with pad.
That being said too much of a "good thing" can be bad. The reason final piston areas are not overly small to make it better is that this in turn effect the knee point of the prop valve. Very small front area requires more pressure, that boosts rear pressure also which then kicks in the knee sooner. If you don't follow all that...that's ok.
As for new: the W6a has been a proven caliper for new front kits. Much beefier than the standard BSL6r part we'd had for years.
All the bias calculating from only rotor size and piston area can be out the window with a pad change. For the guy who reads that Brand X kit pushes 2% more brake to the rear....he may already have more (or less) than this in reality based upon his current (and future front) pad choice. 'Typically' the calculations are based upon a common Cf for the pad to make this easier. But....one can easily alter factory bias by simply elevating the rear pad Cf alone.
While the ST testing should be applauded for its results the net result as mentioned can be achieved by other means. Step back a moment and grasp the true purpose of that test; not to teach you about how brakes work....but to sell you product. (never overlook that in any test or comparison) And it seems do be doing a good job of it still about ten years later- a very effective campaign I must admit.
The choice of master cylinder someone mentioned has nothing to do with brake bias- unless it has a twin set up the fronts and rears get the same input line pressure. Bias in the case of the oe production car is based only on the wheel specs.
As a general rule; increase rotor dia, decrease piston area, tune with pad.
That being said too much of a "good thing" can be bad. The reason final piston areas are not overly small to make it better is that this in turn effect the knee point of the prop valve. Very small front area requires more pressure, that boosts rear pressure also which then kicks in the knee sooner. If you don't follow all that...that's ok.
As for new: the W6a has been a proven caliper for new front kits. Much beefier than the standard BSL6r part we'd had for years.
![](http://i122.photobucket.com/albums/o269/ToddTCE/Mustang-%20SN95%20and%20S197/W6AandBSL6r.jpg)
#24
#26
#27
#28
lol yeah i know about bbk's, idk why I brought them up
my friend put some altima front brakes on his 96 g20 and if u aren't careful it will lock up the brakes pretty nicely with the back going in a slightly different direction, but the car defiantly stops better if you are careful.
I would think in the case of an 03-04 G35 which has abs(the g20 is supposed to but it doesn't work) and the rear calipers are the same on 05-06 G's just with different brackets, the only difference is the size of the rear rotors so it seems like it wouldn't be a huge issue to drive around like that until it was time to do the rear brakes.
the question is has anyone actually tried it and is their G currently upside down at the bottom of a ravine?
my friend put some altima front brakes on his 96 g20 and if u aren't careful it will lock up the brakes pretty nicely with the back going in a slightly different direction, but the car defiantly stops better if you are careful.
I would think in the case of an 03-04 G35 which has abs(the g20 is supposed to but it doesn't work) and the rear calipers are the same on 05-06 G's just with different brackets, the only difference is the size of the rear rotors so it seems like it wouldn't be a huge issue to drive around like that until it was time to do the rear brakes.
the question is has anyone actually tried it and is their G currently upside down at the bottom of a ravine?
#29
lol yeah i know about bbk's, idk why I brought them up
my friend put some altima front brakes on his 96 g20 and if u aren't careful it will lock up the brakes pretty nicely with the back going in a slightly different direction, but the car defiantly stops better if you are careful.
I would think in the case of an 03-04 G35 which has abs(the g20 is supposed to but it doesn't work) and the rear calipers are the same on 05-06 G's just with different brackets, the only difference is the size of the rear rotors so it seems like it wouldn't be a huge issue to drive around like that until it was time to do the rear brakes.
the question is has anyone actually tried it and is their G currently upside down at the bottom of a ravine?
my friend put some altima front brakes on his 96 g20 and if u aren't careful it will lock up the brakes pretty nicely with the back going in a slightly different direction, but the car defiantly stops better if you are careful.
I would think in the case of an 03-04 G35 which has abs(the g20 is supposed to but it doesn't work) and the rear calipers are the same on 05-06 G's just with different brackets, the only difference is the size of the rear rotors so it seems like it wouldn't be a huge issue to drive around like that until it was time to do the rear brakes.
the question is has anyone actually tried it and is their G currently upside down at the bottom of a ravine?