Brake bias

[nd55]

Hey,

just been doing some thinking re: brake bias using Honda parts to upgrade a Ek civic.

My question is, can we move the brake bias approx 10% rearwards on a Civic, and not get rear lockup under good (dry, level ground, lowered sus) conditions?

I haven't taken into account the proportioning valve.

parts in question are:

front:
2050 Civic 262mm Ek brake caliper, 50mm piston.
17CL15VN ITR brake caliper, 57mm piston,

rear:
7CLP13s Ek brake caliper caliper, 30mm piston.
9CLP14s ITR brake caliper, 34mm piston.

In OEM configuration, the brake bias rear/front is approx 35%
57/34 35.5% DC2R/Ek9
50/30 36.0% EK1/EK4

Common upgrade, front only.
57/30 27.7%

Using 23T caliper bracket+pad and 2050 caliper with 9CLP14s rear brakes
50/34 46.0%


Any thoughts?

Nick.

PS I used the area to calculate the ratios (pi * radius ^ 2).