Track forum general chit chat.

[rhyary]

Originally Posted by slicer

285/30/19 (not 35) is GTS rear size

Thanks.
To narrow down the possibilities I am going to focus on 275/35/19 and 295/30/19 on the rear.

I don't see anything compelling enough at 285/35/19 that will add anything

[Kelse92]

Originally Posted by ThunderMoose

Which config were you running? What did you do better to set a new PB? What data system do you use?

1.7 CCW - borrowed an AiM for data. Couldn’t get it to work really through just the OBD, but still got quite a bit out of just the GPS data. Watching videos (with data on them) and taking notes on a track map Friday night on things I wanted to work on really helped. Also had a really helpful instructor in the car pushing me to go faster.

[M3 Number 86]

Originally Posted by romero1990

roastbeef

Good to know. In that case I should go with upgrading OE to new rotor and track pads and fluid first.

With all thing being similar, I wonder how do different BBK kits/brands compares. Say why some are more expensive than the other ones. Is better performance (longer high temperature endurance) or?

I run stoptech trophy STR40 in the front only and they seem to work fine for me.

No need to go all out.

[romero1990]

Another question, is there any cost effective camber checking tool? I don't plan to do alignment myself. But I would want to check if they are in good shape from time to time. thx

[derbo]

Originally Posted by M3 Number 86

I run stoptech trophy STR40 in the front only and they seem to work fine for me.

No need to go all out.

You added anti knock back springs right?

[romero1990]

Originally Posted by M3 Number 86

I run stoptech trophy STR40 in the front only and they seem to work fine for me.

No need to go all out.

It's one of the bigger/pricy item to buy. I wanted to make the right decision than swapping around after awhile.

But probably also one of those things that you never know which works the best until you really try it.

[Bartledoo]

Originally Posted by admranger

Besides, when it gets here from Australia it’ll be upside down and won’t work on your car.

Well, I ordered that PFC Z54 and Z45 set from Australia, and sure enough... It was all upside down

Now, who is hoarding all of the SRF and will sell me a bottle for less than 1 billion dollars?

[bigjae1976]

Originally Posted by romero1990

It's one of the bigger/pricy item to buy. I wanted to make the right decision than swapping around after awhile.

But probably also one of those things that you never know which works the best until you really try it.

I recommend against buying used BBKs..usually you're better off with fresh everything.

A Stoptech BBK is about the lowest cost BBK which provides adequate thermal capabilities. I recommend getting the ST40 BBK on the front axle instead of the ST60. ST40 pads are cheaper and more common. Pads on an ST60 kit don't last any longer than an ST40 setup.

The big appeal of the ST60 is it has a slightly narrower caliper body for better wheel clearance.

[Kelse92]

Originally Posted by Bartledoo

Now, who is hoarding all of the SRF and will sell me a bottle for less than 1 billion dollars?

Haha now this is the legit question!! I'm installing my brakes next week, and even my go-to local parts guy said today "well if you had asked me last week I had 7 bottles, but I sold them all now."
I looked last week at his eBay account and he had them listed at $125/ea so somebody paid that much for it... I was just going to pay him cost LOL

[Ximian]

Originally Posted by bigjae1976

I recommend against buying used BBKs..usually you're better off with fresh everything.

A Stoptech BBK is about the lowest cost BBK which provides adequate thermal capabilities. I recommend getting the ST40 BBK on the front axle instead of the ST60. ST40 pads are cheaper and more common. Pads on an ST60 kit don't last any longer than an ST40 setup.

The big appeal of the ST60 is it has a slightly narrower caliper body for better wheel clearance.

With fresh Motul RBF660 and PFC 08 pads, you can go pretty far but braking performance consistency is an issue. That’s why I’m upgrading.

With the sales going on now, the difference in price between the ST40 and ST60 (PM forum sponsors for pricing) isn’t large enough to be saving a significant amount going the ST40 route. Send me a PM if you want to know where I got the lowest price on ST60s.

Pad price differences for ST40 vs ST60 are pretty significant though.

[romero1990]

Originally Posted by Ximian

With fresh Motul RBF660 and PFC 08 pads, you can go pretty far but braking performance consistency is an issue. That’s why I’m upgrading.

With the sales going on now, the difference in price between the ST40 and ST60 (PM forum sponsors for pricing) isn’t large enough to be saving a significant amount going the ST40 route. Send me a PM if you want to know where I got the lowest price on ST60s.

Pad price differences for ST40 vs ST60 are pretty significant though.

Since ST40/60 are not that crazy expensive anymore, I am debating if it is worth go all the way to ST60 Trophy kit. It's certainly not going to be as good as AP Racing or Z54. But the $1k+ difference will allow me to do other mods in the short term.(eg all subframe/control arm/diff bushings)

[gmx]

Originally Posted by Bartledoo

Well, I ordered that PFC Z54 and Z45 set from Australia, and sure enough... It was all upside down

Now, who is hoarding all of the SRF and will sell me a bottle for less than 1 billion dollars?

Man that thing has a bracket I wouldn't run it

jokes

[Bartledoo]

Originally Posted by gmx

Man that thing has a bracket I wouldn't run it

jokes

My wife said "you bought used brakes!?". I was like, "I bought a used car too!... And it came with shittier used brakes!!"

[M3 Number 86]

Get endless brake fluid. Haven't used srf since.

[roastbeef]

Originally Posted by M3 Number 86

Get endless brake fluid. Haven't used srf since.

What did you like about it?

[Bartledoo]

Originally Posted by M3 Number 86

Get endless brake fluid. Haven't used srf since.

But the wet boiling point is almost 100 degrees lower, and I'm on the once a year flush schedule.

[b4hand]

Originally Posted by Bartledoo

But the wet boiling point is almost 100 degrees lower, and I'm on the once a year flush schedule.

If you're changing fluid frequently then wet shouldn't matter much. Wet is just the temperature the fluid will boil once it consumes 3.7% of water.

If you do fluid flushes every year then you may not get to this point. So just using dry comparisons, endless is slightly higher. And it is cheaper too.

[SYT_Shadow]

Originally Posted by Bartledoo

Well, I ordered that PFC Z54 and Z45 set from Australia, and sure enough... It was all upside down

Now, who is hoarding all of the SRF and will sell me a bottle for less than 1 billion dollars?

Sweet, welcome to the best kit on the market

I have a lot of SRF. I thought it was no longer in short supply, but if you can't find it elsewhere I'll sell a bottle for what I paid + shipping

[derbo]

https://www.bridgestone.co.jp/corpor...jOpB0FPanZio3U

RE71RS announced in Japan. 5% more tread life. Wonder if it will come to the states.

[OG Shark]

Originally Posted by derbo

https://www.bridgestone.co.jp/corpor...jOpB0FPanZio3U

RE71RS announced in Japan. 5% more tread life. Wonder if it will come to the states.

And 1.1% average decrease in lap time with 2.0% being the biggest decrease. That sounds pretty awesome combined with increased life. Could make a huge difference in events with TW restrictions. Also 295/30/18.

[CorruptCommie]

5% increase... so that's an extra 3 laps before they cord?

[Kelse92]

Originally Posted by derbo

https://www.bridgestone.co.jp/corpor...jOpB0FPanZio3U

RE71RS announced in Japan. 5% more tread life. Wonder if it will come to the states.

A handful of Bridgestone reps have said on a few other pages that this tire will not be coming to the US. Slower and probably will get greasy faster on track. Maybe decent for autocross but will need to be sprayed between runs.