Stock Caliper BBK Kits

[flewis763]

Ok guys, I officially am releasing my stock caliper BBK kits. If you are on FB you have probably seen them before. The purchase page is here
http://www.3sgto.org/parts-sale/1524...tml#post307906

I can answer any questions needed. Thanks
Freddy.

[flewis763]

bump for interest. I got 5 people for sure so far. need 20 to run the first batch. any questions feel free to ask.

[green-lantern]

Cool idea

[flewis763]

Cool idea

Thanks. not really a new idea, its common on many platforms, I just made them for ours. It provides a large increase in braking for a very cheap price. total upgrade cost is as low as 600 bucks.

[Disrupter]

Ill jump in when it gets closer to the goal or will buy a set to make it happen. Just did a full refresh on my 1g vr4 so dont need them, but kinda want them.

[green-lantern]

Thanks. not really a new idea, its common on many platforms, I just made them for ours. It provides a large increase in braking for a very cheap price. total upgrade cost is as low as 600 bucks.

Do you know if/how much this will throw the brake bias off? Say I was to just do the rears, any idea how much of the braking power if any would transfer to the rear? I'm assuming it wouldn't be much.

[sergechronos]

Do you know if/how much this will throw the brake bias off? Say I was to just do the rears, any idea how much of the braking power if any would transfer to the rear? I'm assuming it wouldn't be much.

larger rotors will always change the brake torque applied and technically would need a prop valve to readjust for maximum performance. Would take some actual math to determine change based on rotor diameter, but yes it will move brake bias towards the back of the car. It's a pretty substantial increase in rotor diameter. Rough rule of thumb (obviously other factors in play) would be a ~3" change in rotor diameter (like going from factory 11" to 14") would have the same effect as changing the caliper pistons diameter by about 1/4". So to maintain your current bias, you either need an adjustable prop valve, upsize the rear calipers, or use a crappier compound for either the rear pads or the rear tires to reduce coefficient of friction relative to front.

[flewis763]

the brake bias change is fairly minimal. on a 1g is basically a 4% shift to the rear based on rotor sizes. on a 2g its a little over 5%. all in all the slight change to the rear actually helps reduce brake understeer.

adding a proportioning valve on an abs system doesn't work the best. it is easier to adjust the feel with a brake pad change. if you feel the rear is braking to hard, you can change the rear to a less aggressive pad or change the front to a more aggressive pad.

overall it is a small change and does not change the braking feel really on the car, just adds a lot more braking.

[flewis763]

Ill jump in when it gets closer to the goal or will buy a set to make it happen. Just did a full refresh on my 1g vr4 so dont need them, but kinda want them.

it works with stock calipers and pad, only the rotors need to be changed.

[green-lantern]

the brake bias change is fairly minimal. on a 1g is basically a 4% shift to the rear based on rotor sizes. on a 2g its a little over 5%. all in all the slight change to the rear actually helps reduce brake understeer.

adding a proportioning valve on an abs system doesn't work the best. it is easier to adjust the feel with a brake pad change. if you feel the rear is braking to hard, you can change the rear to a less aggressive pad or change the front to a more aggressive pad.

overall it is a small change and does not change the braking feel really on the car, just adds a lot more braking.

Reason why I ask is I have the XYZ BBK on the front and I think the bias is just +2%. I might be interested in the rears, how close are you to getting enough people to make a run?