A little while ago I asked for an advice on brake lines in this forum, I ended up buying Stoptech SS lines for my s2000 for a little improved safety sake.

After having Stoptech SS lines installed by my mechanic, we spent 2 1/2 bottles of Motul RBF600 trying to bleed the brakes.

After the installation of Stoptech SS lines, initial pedal pressure was not even close to my stock lines brake pedal pressure ( which was last bleed ed in April) and have seen numbers high temperature of at least 6-7 track days. So the new brake lines didn't even have the same brake pedal pressure of used oem brake lines. After the practice day in BW, they became so soft that I wasn't able to attend the event next day?

Any ideas? Any suggestions?

I have a 2001 AP1 and this is both my daily drive and track car.
Thanks.

 

sounds like air in the lines to me. after you bleed with new fluid then drive it a bit the air bubble should accumulate toward the ends of the lines. stick a clear tube(going into a container) on the bleeder and crack the bleeder to see if any air bubbles come out. do all four, drive the car a bit and repeat. sometimes takes a few tries to get all the air out of the lines.

 

Have no idea if this is it, but make sure to do quite a few cycles of the ABS and then reblead. The fluid in the ABS lines is only circulated when the ABS is activated.

 

definitely not the fault of the SS lines or the fluid... unless you have a leak somewhere.

 

You should try the billman cure all bleed. Use a 2x4 to push the brake pedal down overnight. Disconnect the battery so the brake lights don't drain it. This should remove any air from the system.

 

and then crack the bleeders afterward? obviously just pressing the brake doesn't remove air from the system.

 

What method did you use to bleed the brakes?

 

Yes it does. Pin the brake pedal overnight.

 

OP, you have air in the system 100%.

Try my method

 

Yes it does. Pin the brake pedal overnight.
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well, i'll be damned. how does the air escape with the system still closed?