Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Suspension | Chassis | Brakes -- Sponsored by 949 Racing (https://www.ft86club.com/forums/forumdisplay.php?f=59)
-   -   AP Racing brake systems in development (https://www.ft86club.com/forums/showthread.php?t=12608)

CSG David 09-25-2014 02:50 PM

Quote:

Originally Posted by Dezoris (Post 1960756)
The DSUNOs were average. I actually preferred the DS2500s they were at least consistent. But again this was at two tracks easy on brakes.

At least on this car, I don't see much reason why not to just stick with XP8, XP10 and 12. And Maybe 999 for hardcore use. They are work very well without horrible dusting. (on AP)

Last winter here, was horrible. Absolutely no way to ever keep car clean from salt, you could wash it and 10 miles later coated again. And the salt mixes have gotten more tacky. Cars that are 1-2 years old look like 5 year old cars with rust and corrosion.

I can see an area who has light winters or just cold being ok to run the kits but if you are in the area I spoke about. Take the brakes off, or just park the car. If you drive through the salt like that a rebuild is absolutely needed after winter if you care about safety. The Sprint and Enduro calipers are anodized not coated so they will just turn to white ash. Just not worth it.

True story bro. 999 is still pretty damn good. We're experimenting on the Winmax compounds as well to find out the balance and bite of them compared to the 999. The compounds are still being made so we'll have more to update soon. ;)

gramicci101 09-25-2014 02:58 PM

Would it be acceptable to have the calipers powdercoated? Would that even solve the problem?

CSG David 09-25-2014 04:48 PM

Quote:

Originally Posted by gramicci101 (Post 1960804)
Would it be acceptable to have the calipers powdercoated? Would that even solve the problem?

Nope. You don't just randomly powdercoat calipers just for the sake of coating it. There are many variables involved with that process as well...

JRitt 10-27-2014 04:27 PM

One of our customers sent us a nice vid of him working over a large field of GT86's with our Sprint Kit. Check it out on our blog. :D

http://www.essexpartsblog.com/media/...g/MNongrid.jpg

ZionsWrath 10-27-2014 04:39 PM

I ran XP10 at the track this weekend. On stock brakes and tires the backing plated turned black. On stock brakes and RE11A I turned the backing plate white.

On stock with XP10 I find the pedal is very firm and easy to use. On the AP sprint kit I find the initial bite to be non existent. The first bit of travel does nothing IMO. I got used to it thought and maybe it is a good thing because you can just stand on the brakes. Since the first bit doesn't do much it doesn't unsettle the car. Also to note the XP10 pads still have orange paint so they did not get hot at all.

Not sure what to conclude but I have a few thoughts. Maybe there is a little air in system, though I bled twice and it feels firm on street pads (carbotech 1521). Or overall the car and tires are not enough for this pad compound, maybe should try XP8. Or (most likely) I'm just slow and don't get enough heat into the brakes.

dradernh 10-27-2014 07:55 PM

Quote:

Originally Posted by ZionsWrath (Post 2000315)
Or (most likely) I'm just slow and don't get enough heat into the brakes.

If you were at Thunderbolt (just guessing), brakes don't get especially hot there anyway.

CSG Mike 10-27-2014 10:29 PM

Quote:

Originally Posted by ZionsWrath (Post 2000315)
I ran XP10 at the track this weekend. On stock brakes and tires the backing plated turned black. On stock brakes and RE11A I turned the backing plate white.

On stock with XP10 I find the pedal is very firm and easy to use. On the AP sprint kit I find the initial bite to be non existent. The first bit of travel does nothing IMO. I got used to it thought and maybe it is a good thing because you can just stand on the brakes. Since the first bit doesn't do much it doesn't unsettle the car. Also to note the XP10 pads still have orange paint so they did not get hot at all.

Not sure what to conclude but I have a few thoughts. Maybe there is a little air in system, though I bled twice and it feels firm on street pads (carbotech 1521). Or overall the car and tires are not enough for this pad compound, maybe should try XP8. Or (most likely) I'm just slow and don't get enough heat into the brakes.

Relatively speaking, you should have more bite. Did you bleed both the inside and outside of the fronts?

Do you know how hot the brake temps were front to rear?

ZionsWrath 10-27-2014 11:13 PM

Quote:

Originally Posted by dradernh (Post 2000634)
If you were at Thunderbolt (just guessing), brakes don't get especially hot there anyway.

Yes I was at Thunderbolt. Silver BRZ #87 in group 2.
Quote:

Originally Posted by CSG Mike (Post 2000840)
Relatively speaking, you should have more bite. Did you bleed both the inside and outside of the fronts?

Do you know how hot the brake temps were front to rear?

I bled them twice. First time air was left in system. Second time seemed good. I'm considering bleeding again before this weekend...

I don't know the temps, I don't have any way to check.

CSG Mike 10-27-2014 11:14 PM

Quote:

Originally Posted by ZionsWrath (Post 2000889)
Yes I was at Thunderbolt. Silver BRZ #87 in group 2.


I bled them twice. First time air was left in system. Second time seemed good. I'm considering bleeding again before this weekend...

I don't know the temps, I don't have any way to check.

Cheap harbor freight laser pyrometer will be good enough for this; we just want to check for rotor temps to approximate brake useage

gramicci101 10-27-2014 11:17 PM

Quote:

Originally Posted by ZionsWrath (Post 2000889)
I don't know the temps, I don't have any way to check.

AP makes thermal paint you can apply to your rotor. @JRitt sells it.

dradernh 10-28-2014 03:11 AM

Quote:

Originally Posted by gramicci101 (Post 2000895)
AP makes thermal paint you can apply to your rotor. @JRitt sells it.

I've used AP's fluid and [ame="http://www.amazon.com/Genesis-Brake-Temp-Paint-fl/dp/B000UZEI6C"]Amazon.com: Genesis Brake Temp Paint - 1 fl. oz.: Automotive[/ame], and I found the Genesis fluid an easier product to work with.

ZionsWrath 10-28-2014 02:25 PM

Just bled my brakes again for good measure based on @CSG Mike post that I should have a good initial bite. Saw 3 small air bubbles from rear caliper. Didn't see any more air come out.

Also air sprayed any excess fluid out of the bleeder nipples and wiped off calipers to see if I find any more stray brake fluid.

Can't wait for this 3 day weekend at VIR to try them out some more :)

philooo 06-04-2015 08:18 PM

1 Attachment(s)
What the consensus on brake duct blowing on the rotor 'pad area' instead of the center ?
I understand it is not optimal, but is it something that should be avoided ?

Logically a large amount of air coming only on one side of the disc doesn't sound like a great idea for uniform wear.

Can anybody comment on that ? I have the APR brake kit and it seems like the Essex kit will play along with the kit without problem, but considering the oversized brake may not require any ducting, I am thinking about removing it all together.

anybody running the essex kit with some brake ducts ?

Traktor 08-03-2015 05:13 PM

Hi all this is my first post. I warped my front DBA 5000 rotor the other day at the track which got me thinking about a proper BBK upgrade, which brought me here.

Has anyone considered pairing the Essex kits with some of the GC8 WRX fixed 2 pots for the rears? These bolt on with a custom bracket. I played around with the brake bias calculator which showed that these calipers have the exact same brake torque as the stock FT86 ones.

As the Essex kits are designed to not alter the bias with the OEM rears, it would seem the wrx 2 pots would work with this kit without altering factory bias.

As the same rotor is used there would be no thermal advantage, but it doesn't appear as though this is needed on the FT86 rear. However, the calipers are alloy and would save a few lbs over stock, the fixed design would offer better feel, they would visually be a nice match for the front and the whole exercise would not be very expensive at all.


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