droideka

2 months back I flushed the system and put in the Valvoline SynPower fluid to try it out. At $5 a quart, it can't be beat as far as bargins go. I didn't come close to boiling the SynPower fluid on the track with the stock brakes that got EXTREMELY hot, so I don't forsee any problems with those BIG StopTechs.

Here's a list of major brake fluids and their respective DRY/WET boiling temps:

Arranged by DRY boiling point:
DRY: 401F -- WET: 284F --- DOT3
DRY: 446F -- WET: 311F --- DOT4
DRY: 502F -- WET: 343F --- Valvoline SynPower
DRY: 509F -- WET: 365F --- Motul 5.1
DRY: 527F -- WET: 302F --- AP Racing 551
DRY: 536F -- WET: 392F --- ATE Superblue/TYP200
DRY: 590F -- WET: 410F --- AP Racing 600
DRY: 590F -- WET: 518F --- Castrol SRF
DRY: 593F -- WET: 420F --- Motul RBF600
DRY: 610F -- WET: 421F --- Neo-Synthetic Super DOT 610

Arranged by WET boiling point:
DRY: 401F -- WET: 284F --- DOT3
DRY: 527F -- WET: 302F --- AP Racing 551
DRY: 446F -- WET: 311F --- DOT4
DRY: 502F -- WET: 343F --- Valvoline SynPower
DRY: 509F -- WET: 365F --- Motul 5.1
DRY: 536F -- WET: 392F --- ATE Superblue/TYP200
DRY: 590F -- WET: 410F --- AP Racing 600
DRY: 593F -- WET: 420F --- Motul RBF600
DRY: 610F -- WET: 421F --- Neo-Synthetic Super DOT 610
DRY: 590F -- WET: 518F --- Castrol SRF

slay2k

I'd like to bring this thread back to life by pointing out that:

a) I have a set of 14" StopTech fronts and stock rears.
b) Pads on StopTech fronts are Axxis Ultimates
c) Pads on stock rears are Porterfield R4S's

I got the Porterfields based on the good reviews in this thread, but I must say they suck. They only brake well when they heat up on the street... otherwise they make the StopTechs feel slower and spongier!!

I need another pad for the rears now... for street use.