Got a track related question? I'll try to answer.

[CSG Mike]

Originally Posted by ka-t_240

-Not Doing the Dance.


- Pad Life -
HP+: 10k Street, I am guessing 15 days of autox, and 6.5 hpde days. Fronts have 30% left and rears had about half.
DTC60: Will be removed this week. They have 3.5 HPDE Days, 2k street miles, 6 autox events. Not sure on how much pad is left, haven't had them out since 2 events ago when they looked to be almost new.




I will see the "nanny" turn on once or twice a session.

I'm wondering if you're slightly overheating one axle. Report back when you take the DTC off, and we can judge from how they look.

Also, I recommend learning to drive with the nannies off. Know that any mistakes you make will be punished, so back off your pace a bit, and proceed slowly!

[ka-t_240]

Originally Posted by CSG Mike

I'm wondering if you're slightly overheating one axle. Report back when you take the DTC off, and we can judge from how they look.

Also, I recommend learning to drive with the nannies off. Know that any mistakes you make will be punished, so back off your pace a bit, and proceed slowly!

I'll try and get them off today and see if I can snag Rotor/Pad pics in the process. The rotors look very similar after each session, nothing like any blued metal or anything like that.


The first time it started doing this I started watching to see if the TCS light (or what ever you like calling it) is was popping on during breaking; which it is not. I am comfortable with out any of the systems on, currenlty run with TCS/VSC as far off as the car allows them with out doing any dancing or using the OFT to disable. I am fine with the car rotating/sliding/ect.

Does the ECU do anything that you can't feel/hear/see with the light flashing on the dash when you don't do the dance? Im pretty aware to watching my cluster and knowing when or if the system still triggers the brakes. which is not where I am having the ABS activate under braking.

[Racecomp Engineering]

Originally Posted by ka-t_240

What system are you thinking? Most of my friends use Traqmates.

The AIM Solo is popular on here, which is good for getting feedback from others. It's a good system overall like Mike said.

Originally Posted by ka-t_240

Working with Myles on the suspension setup over the last 2 years has done nothing but improve the car. Now I just need to buy some scales.

He's good at that.

- Andrew

[GeorgeJFrick]

Originally Posted by CSG Mike

We like the AIM Solo DL; the OBD2 interface on newer cars is KEY to dissecting what's going on.

They're in-stock and ready to go.

So the recommended setup here is AIM Solo DL + OBD2 + Go Pro + RaceRender for full recording/analysis and sharing?

I'm currently doing Torque + GoPro for a more affordable solution, but the Solo DL looks nice.

[CSG Mike]

Originally Posted by ka-t_240

I'll try and get them off today and see if I can snag Rotor/Pad pics in the process. The rotors look very similar after each session, nothing like any blued metal or anything like that.


The first time it started doing this I started watching to see if the TCS light (or what ever you like calling it) is was popping on during breaking; which it is not. I am comfortable with out any of the systems on, currenlty run with TCS/VSC as far off as the car allows them with out doing any dancing or using the OFT to disable. I am fine with the car rotating/sliding/ect.

Does the ECU do anything that you can't feel/hear/see with the light flashing on the dash when you don't do the dance? Im pretty aware to watching my cluster and knowing when or if the system still triggers the brakes. which is not where I am having the ABS activate under braking.

Not pedal dancing leaves the EBD and E-diff active. This can lead to unintended useage of your brakes, which could contribute to overheating the pads, which could cause your issues.

Right now, I'm making educated guesses, because we don't have a large amount of data to work with. Sorry!

[Shark_Bait88]

Did my first track day two weekends ago at Road America. Had a blast, and noticed something interesting.

The car seems to reach the threshold of grip in right turns much faster than in left turns. There were two spots on the track where it was most noticeable.

1. Going through the Carousel (long right sweeper) the rear end would start to get floaty from mid-corner to exit if my speed was too high or I started to apply throttle. Could really only start to get into the throttle once I was pretty much out of the corner completely. (Not saying I'm complaining about not being able to mash the throttle. I couldn't start to apply steady throttle through corner exit)

2. I couldn't go through the Kink any faster than about 85mph. Anytime I entered at 90+ it would get squirrely on the exit, and I wasn't lifting or giving jerky steering inputs. That was with applying even throttle through the turn and getting back on it at the exit. I'm on a fairly used, but still good, set of last year's Rivals; and by comparison my buddy was able to take the same turn at 100mph on stock tires in his BRZ. (Of course you could argue that he's just a better driver than me, which is likely true, but doesn't seem to be the source of this probelm)

Essentially, in right hand turns steady-application (not overuse) of throttle is causing the car to loose grip rather than gain it. This is with smooth steering and pedal inputs as well. All the instructors who rode with me noticed that the car wasn't behaving like it should, and recommended I have the rear end looked at.

After discussing it with one instructor, we figured that it could be that the stock sway bar is pre-loaded one way or it could be a bushing problem.

Car has stock suspension apart from OEM crash bolts, and the only other upgrades are a Berk single-exit delete and Kosei K1s w/ the previously mentioned Rivals. Alignment was set to about -1/-1.5 camber F/R with 0 toe in the front and 1/32 toe-in in the rear. I was only running the car in VSC Sport Mode, since it was my first time at an actual track day.

Haven't taken it anywhere to be looked at yet, but was curious to hear thoughts from you all.

[GeorgeJFrick]

Originally Posted by Shark_Bait88

Did my first track day two weekends ago at Road America. Had a blast, and noticed something interesting.

The car seems to reach the threshold of grip in right turns much faster than in left turns. There were two spots on the track where it was most noticeable.

1. Going through the Carousel (long right sweeper) the rear end would start to get floaty from mid-corner to exit if my speed was too high or I started to apply throttle. Could really only start to get into the throttle once I was pretty much out of the corner completely. (Not saying I'm complaining about not being able to mash the throttle. I couldn't start to apply steady throttle through corner exit)

2. I couldn't go through the Kink any faster than about 85mph. Anytime I entered at 90+ it would get squirrely on the exit, and I wasn't lifting or giving jerky steering inputs. That was with applying even throttle through the turn and getting back on it at the exit. I'm on a fairly used, but still good, set of last year's Rivals; and by comparison my buddy was able to take the same turn at 100mph on stock tires in his BRZ. (Of course you could argue that he's just a better driver than me, which is likely true, but doesn't seem to be the source of this probelm)

Essentially, in right hand turns steady-application (not overuse) of throttle is causing the car to loose grip rather than gain it. This is with smooth steering and pedal inputs as well. All the instructors who rode with me noticed that the car wasn't behaving like it should, and recommended I have the rear end looked at.

After discussing it with one instructor, we figured that it could be that the stock sway bar is pre-loaded one way or it could be a bushing problem.

Car has stock suspension apart from OEM crash bolts, and the only other upgrades are a Berk single-exit delete and Kosei K1s w/ the previously mentioned Rivals. Alignment was set to about -1/-1.5 camber F/R with 0 toe in the front and 1/32 toe-in in the rear. I was only running the car in VSC Sport Mode, since it was my first time at an actual track day.

Haven't taken it anywhere to be looked at yet, but was curious to hear thoughts from you all.

From the explanation of the carousel that I was given by my instructor, and my book research; you can't apply additional throttle through it. It's a steady hold until "You can see the white of their eyes"; i.e. the apex at the very end of the turn (there is a small drop here too). This is as you prepare to let the car pull left (throttle through the apex, come out left, be looking at the upcoming kink). The best indicator was that the car 'settles' slightly at the end of the carousel, and is ready for throttle.

I've been through the kink at 110 on ZII* spec.

As for the right vs left; it might be driver weight? I haven't really noticed this phenomenon.

Keep in mind I'm a noob though; so I'm not definitively saying you are wrong.

[Shark_Bait88]

Originally Posted by GeorgeJFrick

From the explanation of the carousel that I was given by my instructor, and my book research; you can't apply additional throttle through it. It's a steady hold until "You can see the white of their eyes"; i.e. the apex at the very end of the turn (there is a small drop here too). This is as you prepare to let the car pull left (throttle through the apex, come out left, be looking at the upcoming kink). The best indicator was that the car 'settles' slightly at the end of the carousel, and is ready for throttle.

I've been through the kink at 110 on ZII* spec.

As for the right vs left; it might be driver weight? I haven't really noticed this phenomenon.

Keep in mind I'm a noob though; so I'm not definitively saying you are wrong.

I was holding quicker speeds through the carousel as the weekend went on, but that was generally starting with a higher entry speed. I was only slightly increasing throttle as I steered into the rumble strip on the exit, and this was usually when the instructors were telling me too. But what you're saying makes sense, especially since I was staying very throttle neutral through the corner later in the weekend and holding higher speeds.

The kink was probably the weirdest part. The car really just couldn't handle much speed through there. 85 to 86 was the limit, even when I was giving smooth inputs, turning in at the right time, hitting the apex, and applying throttle on exit to attempt to increase grip.

Could be the weight thing (I'm 110lbs, and all of my instructors had to be in the range of 150-200+), but I experienced this same issue with pretty much all my instructors.

[ka-t_240]

Originally Posted by CSG Mike

Not pedal dancing leaves the EBD and E-diff active. This can lead to unintended useage of your brakes, which could contribute to overheating the pads, which could cause your issues.

Right now, I'm making educated guesses, because we don't have a large amount of data to work with. Sorry!

I haven't experienced in pad fade, or anything like that, just the ABS activating on breaking in hard braking zones. As for data would we be looking to examine the amount of deceleration in the braking zone? I actaully might have some Harry's Data on my buddies phone, not sure if I had any issues when I was using it.

[CSG Mike]

Originally Posted by ka-t_240

I haven't experienced in pad fade, or anything like that, just the ABS activating on breaking in hard braking zones. As for data would we be looking to examine the amount of deceleration in the braking zone? I actaully might have some Harry's Data on my buddies phone, not sure if I had any issues when I was using it.

Wheel speed sesnsors

[CSG Mike]

Originally Posted by Shark_Bait88

Did my first track day two weekends ago at Road America. Had a blast, and noticed something interesting.

The car seems to reach the threshold of grip in right turns much faster than in left turns. There were two spots on the track where it was most noticeable.

1. Going through the Carousel (long right sweeper) the rear end would start to get floaty from mid-corner to exit if my speed was too high or I started to apply throttle. Could really only start to get into the throttle once I was pretty much out of the corner completely. (Not saying I'm complaining about not being able to mash the throttle. I couldn't start to apply steady throttle through corner exit)

2. I couldn't go through the Kink any faster than about 85mph. Anytime I entered at 90+ it would get squirrely on the exit, and I wasn't lifting or giving jerky steering inputs. That was with applying even throttle through the turn and getting back on it at the exit. I'm on a fairly used, but still good, set of last year's Rivals; and by comparison my buddy was able to take the same turn at 100mph on stock tires in his BRZ. (Of course you could argue that he's just a better driver than me, which is likely true, but doesn't seem to be the source of this probelm)

Essentially, in right hand turns steady-application (not overuse) of throttle is causing the car to loose grip rather than gain it. This is with smooth steering and pedal inputs as well. All the instructors who rode with me noticed that the car wasn't behaving like it should, and recommended I have the rear end looked at.

After discussing it with one instructor, we figured that it could be that the stock sway bar is pre-loaded one way or it could be a bushing problem.

Car has stock suspension apart from OEM crash bolts, and the only other upgrades are a Berk single-exit delete and Kosei K1s w/ the previously mentioned Rivals. Alignment was set to about -1/-1.5 camber F/R with 0 toe in the front and 1/32 toe-in in the rear. I was only running the car in VSC Sport Mode, since it was my first time at an actual track day.

Haven't taken it anywhere to be looked at yet, but was curious to hear thoughts from you all.

Is the track surface directly comparable? Is there any degree of banking, even if its tiny like 1 degree?

[Shark_Bait88]

Originally Posted by CSG Mike

Is the track surface directly comparable? Is there any degree of banking, even if its tiny like 1 degree?

I have no experience on other tracks to compare the surface to.

The carousel is slightly banked.


The kink is pretty much flat.

[CSG Mike]

Originally Posted by Shark_Bait88

I have no experience on other tracks to compare the surface to.

The carousel is slightly banked.


The kink is pretty much flat.

What speed are you at in both corners?

Tire pressures even?

[Shark_Bait88]

Originally Posted by CSG Mike

What speed are you at in both corners?

Tire pressures even?

In the carousel I entered and held a pretty consistent 75mph, with any application of throttle causing the rear end to feel floaty.

The kink could be taken at 85-86, anything above that made the car squirrely at exit; especially under throttle.

Cold pressures were at 35 square to start the day, and later I dropped them to about 34/32 f/r and then even later to about 32/30.