[moproblems]

Just got to do my first drive with the millways installed. No real perceptible change in NVH, mostly a slightly louder boom when hitting the bump stop and the steering is a little more talkitive over tar snakes. Steering feel is slightly heavier and the car sets up and settles in quicker. Glad I went with the street plates and not the track ones with the uniballs.

[jmg]

Originally Posted by moproblems

Just got to do my first drive with the millways installed. No real perceptible change in NVH, mostly a slightly louder boom when hitting the bump stop and the steering is a little more talkitive over tar snakes. Steering feel is slightly heavier and the car sets up and settles in quicker. Glad I went with the street plates and not the track ones with the uniballs.

Good to hear! I went with race since I had the uniball GC plates on my F80 and didn't mind them. I'll post my feedback whenever they get here!

[beachBmmr]

Originally Posted by moproblems

Just got to do my first drive with the millways installed. No real perceptible change in NVH, mostly a slightly louder boom when hitting the bump stop and the steering is a little more talkitive over tar snakes. Steering feel is slightly heavier and the car sets up and settles in quicker. Glad I went with the street plates and not the track ones with the uniballs.

How much negative camber did you achieve up front?

[moproblems]

Originally Posted by beachBmmr

How much negative camber did you achieve up front?

I will tell you tomorrow.

[BMWRacer523]

Originally Posted by moproblems

Just got to do my first drive with the millways installed. No real perceptible change in NVH, mostly a slightly louder boom when hitting the bump stop and the steering is a little more talkitive over tar snakes. Steering feel is slightly heavier and the car sets up and settles in quicker. Glad I went with the street plates and not the track ones with the uniballs.

Got the millway streets as well. looking forward to installing them.

[moproblems]

Originally Posted by beachBmmr

How much negative camber did you achieve up front?

At full in I had -3.8 with h&r springs. Toe change is about -.4 a side.

[jmg]

Yes, this car needs camber! Photogs happen to catch my fastest lap where I overshot turn 2 and lost 0.4s

Can't wait for my Millways!

[Mrspeed636]

Nice picture!!! These cars are a whole lotta fun on track, how did the stock brakes do?

[jmg]

Originally Posted by Mrspeed636

Nice picture!!! These cars are a whole lotta fun on track, how did the stock brakes do?

I am pleasantly surprised how fun the G8X is considering it's a bit heavier than my F80. It actually feels more nimble!

I did not hammer the factory brakes much at all, and I took a lot of cool down laps, so they held up very well! Race fluid and pad are a must however, as it took a lot of brake maintenance to keep them cool.

[beachBmmr]

Originally Posted by moproblems

At full in I had -3.8 with h&r springs. Toe change is about -.4 a side.

I think some of that is camber gain since you are in the dynamic range with lowering springs. Id like to get COG lower but waiting for a edc damper coil over to come out. The car is very softly sprung stock, which makes the curbs less impactful and upsetting to the car.

[jmg]

Originally Posted by beachBmmr

I think some of that is camber gain since you are in the dynamic range with lowering springs. Id like to get COG lower but waiting for a edc damper coil over to come out. The car is very softly sprung stock, which makes the curbs less impactful and upsetting to the car.

Ditto, waiting for more kits to be available. The KW V4 is a little rich for my blood. What are you on now? I'll be doing the KW HAS in the meantime. Hopefully by the end of the year there will be more options in my price range.

[beachBmmr]

Originally Posted by jmg

Ditto, waiting for more kits to be available. The KW V4 is a little rich for my blood. What are you on now? I'll be doing the KW HAS in the meantime. Hopefully by the end of the year there will be more options in my price range.

Tractive is the system I'm waiting on. My track shop put them in a bunch of F82s. They are rebuildable and inertia labs in Dallas is their us service center which is super close to me

[jmg]

Originally Posted by beachBmmr

Tractive is the system I'm waiting on. My track shop put them in a bunch of F82s. They are rebuildable and inertia labs in Dallas is their us service center which is super close to me

Looking into this. The Road/Track line looks like a good fit. If I'm reading this correctly, keeping EDC is a nice plus!

[beachBmmr]

Originally Posted by jmg

Looking into this. The Road/Track line looks like a good fit. If I'm reading this correctly, keeping EDC is a nice plus!

R-ACE . Supposed to be PNP with stock edc yet tunable..so you can control dampening settings at each edc position

[jmg]

Originally Posted by beachBmmr

R-ACE . Supposed to be PNP with stock edc yet tunable..so you can control dampening settings at each edc position

That's pretty sweet. A little less than the KWV4 but with this feature.

[moproblems]

I spoke to the Tractive guys when I was at PRI this year. Super nice people, said that G8x will happen this year IIRC.

[Ximian]

What is this Pirelli PZero Corsa tire? 80 treadwear, BMW Star spec -

https://www.tirerack.com/tires/tires...ndard%20Brakes

[jmg]

Got my EBC Bluestuff installed on Monday! As per EBC's bed in procedure:

https://ebcbrakes.com/race-motorspor...es/bedding-in/


I drove 100 miles then did 8X 80-30mph hard stops. By the 8th stop I had noticeable brake fade. I let the brakes cool and they functioned just as before. Is this normal to experience fad from the initial bedding? Just wanted to make sure since I never experienced this with PFC-08 on my F80.

[Ximian]

Originally Posted by jmg

Is this normal to experience fad from the initial bedding? Just wanted to make sure since I never experienced this with PFC-08 on my F80.

Yes, can be normal with gassy pads. PFC pads are magic and don't really need bedding in or have issues with other pad compounds on the rotors.

[jmg]

Originally Posted by Ximian

Yes, can be normal with gassy pads. PFC pads are magic and don't really need bedding in or have issues with other pad compounds on the rotors.

Ok thanks. What do you mean by "gassy" pads? I've never heard that term.

[Boomer 2019]

Originally Posted by jmg

Ok thanks. What do you mean by "gassy" pads? I've never heard that term.

Depends.

[Ximian]

Originally Posted by jmg

Ok thanks. What do you mean by "gassy" pads? I've never heard that term.

Out-gassing? Maybe you've heard of that one.

When the brake pads and rotors get very hot, the pad material releases a very high temperature gas that gets between the pad and rotor that reduces the friction between the two. This is brake fade due to out-gassing. That's how we ended up with slotted and drilled rotors as they give the gas a place to escape.

Some brake pads, likely that EBC, release a bit more gas than others during burnishing so that fade is expected. They shouldn't fade after burnishing so try it again a day or two later and bring a temperature sensor. You can only get the outside pad temperature, but it should be good enough to confirm that you're not overheating the pads.

80-20 MPH braking on a 3800 lbs car involves more heat than 80-20 MPH braking on a 3000 lbs car so that's another thing to keep in mind. The heavier the car, the easier it is to bring the pads up to temperature and potentially overheat them so maybe not as many passes are required. I've done 10 passes of three sets on my track car; 60-10, 80-10, 100-10. That would be overkill on the G80.