heinzboehmer's 2002 Topaz 6MT Coupe

[heinzboehmer]

Alright, quick recap of the headliner adventure.

Here's the headliner in more detail.





There's a bit of mold on it, but that's to be expected for something that came out of a car that was abandoned in the woods. My plan is to clean it up mechanically as much as I can, then put it in some plastic bags with an ozone generator to fully kill everything. If anyone has experience with using ozone generators for this kind of stuff, I'd appreciate some guidance!

Improvised a box and packaging for the part by basically digging through my friend's recycling and pulling old pillows from his closet:







It's a bit ridiculous and shitty looking, but this thing is going overnight to California, so I think it'll be just fine. Will likely make it back home before me

[heinzboehmer]

Love how a plan comes together. I pulled this car out of the woods a couple years ago saving it from the scrap yard. Pretty cool how this part is making its way to California to live on.

Hell yeah! Thanks again for letting me know about it.

[George Hill]

Love how a plan comes together. I pulled this car out of the woods a couple years ago saving it from the scrap yard. Pretty cool how this part is making its way to California to live on.

[heinzboehmer]

Picked this up today from a friend of George Hill's:



Feels good to finally have one, have been looking for one forever. Now just need to get all that old adhesive off (destroying my floor and clothes in the process) and wrap it in some new BM134 fabric.

[heinzboehmer]

I'll have to ask my HW friends. Unfortunately don't know anyone at TI, but maybe one of them does?

[Bry5on]

I've had zero luck finding info about the processor. Even after you cut open your spare MK60.

Need to find someone who worked on this thing at TI.

Well for the public record, the chip is a Texas Instruments (TI) 990-9377.1D and my EE automotive engineer friend that worked for TI at the time says it was likely a custom fabbed chip by TI for ATE Teves. But didn’t have a lead on anything else.. Maybe someone else reading has a better lead?

[heinzboehmer]

Yeah I couldn’t figure out any instruction sets for the chip - it’s some proprietary traction control focused chip and not a widely used generic one. Above my disassembly pay grade, but maybe not yours!

I've had zero luck finding info about the processor. Even after you cut open your spare MK60.

Need to find someone who worked on this thing at TI.

[Bry5on]

Didn't you try messing with it at some point only to find that there was something weird with the instruction set?

Yeah I couldn’t figure out any instruction sets for the chip - it’s some proprietary traction control focused chip and not a widely used generic one. Above my disassembly pay grade, but maybe not yours!

[heinzboehmer]

Next disassembly project?!

Didn't you try messing with it at some point only to find that there was something weird with the instruction set?

[Bry5on]

Next disassembly project?!

[heinzboehmer]

Interesting. I'm assuming you have the yaw sensor? I've deleted my yaw sensor and I've only run into ice mode a couple of times when I obviously overcook a braking zone while in retard mode. Releasing the brake and reapplying aggressively gets the brakes to bite again. I turn and can brake quite aggressively into a fast sweeper at 125 mph.

I'd really like to know more about how and when ice mode kicks in since panic mode kicks in right after ice mode lol

Yep, yaw sensor is installed (and functional). I would also love to know what triggers it. What you describe does not sound like fun at all...

[bigjae46]

Thinking back on this, I'm pretty sure the conditions (and my terrible drifting abilities) were triggering ice mode. Pumping the pedal was an almost instinctual reaction (kinda like flicking a switch a bunch of times when it doesn't do what you expect), so it was not as scary as I thought. I bet it's WAY scarier when going into a corner at 120+ mph though!

Interesting. I'm assuming you have the yaw sensor? I've deleted my yaw sensor and I've only run into ice mode a couple of times when I obviously overcook a braking zone while in retard mode. Releasing the brake and reapplying aggressively gets the brakes to bite again. I turn and can brake quite aggressively into a fast sweeper at 125 mph.

I'd really like to know more about how and when ice mode kicks in since panic mode kicks in right after ice mode lol

[heinzboehmer]

Looks like lovely weather

What is Ice Mode on the Mk.60, i have never heard of that before?

Yeah it's not as easy to trigger as on the MK20 (or so I've heard), but same thing.

Basically just an operating mode that the unit goes into when it thinks you're trying to slow down on a very low friction surface (e.g. ice). It drastically reduces braking force at the calipers in an effort to keep the car pointing straight.

[ac427]

Couple more quick distractions.

During a couple of the many spins, I learned what ice mode feels like on the MK60. First time it happened (spun 360 deg, feet on clutch and brake, brake pedal pulsing, car rolling backwards at ~20 mph and not slowing down much at all), I thought that ABS was just not very good at slowing the car down in reverse. Pumped the pedal and car came to a stop. However, it happened again at a much slower speed (~10 mph) and it felt distinctly different to normal ABS engagement.

Pedal was pulsing, but the pulses were way lower amplitude than during a normal ABS event. Pedal also got very hard after ~10% travel and additional force from my leg did not translate to any meaningful force at the calipers. Felt similar to pushing it with the engine off and vacuum gone from the booster. Again, couple pumps and the pedal went back to feeling normal.

Thinking back on this, I'm pretty sure the conditions (and my terrible drifting abilities) were triggering ice mode. Pumping the pedal was an almost instinctual reaction (kinda like flicking a switch a bunch of times when it doesn't do what you expect), so it was not as scary as I thought. I bet it's WAY scarier when going into a corner at 120+ mph though!

Looks like lovely weather

What is Ice Mode on the Mk.60, i have never heard of that before?

[heinzboehmer]

Couple more quick distractions.

Swapped temporary injector o ring on the IAT with one from WOLFN8TR:



Also attended a fairly wet autox this weekend. Lots and lots of spinning out. Was a blast.

Sheep seemed to be enjoying the weather:



During a couple of the many spins, I learned what ice mode feels like on the MK60. First time it happened (spun 360 deg, feet on clutch and brake, brake pedal pulsing, car rolling backwards at ~20 mph and not slowing down much at all), I thought that ABS was just not very good at slowing the car down in reverse. Pumped the pedal and car came to a stop. However, it happened again at a much slower speed (~10 mph) and it felt distinctly different to normal ABS engagement.

Pedal was pulsing, but the pulses were way lower amplitude than during a normal ABS event. Pedal also got very hard after ~10% travel and additional force from my leg did not translate to any meaningful force at the calipers. Felt similar to pushing it with the engine off and vacuum gone from the booster. Again, couple pumps and the pedal went back to feeling normal.

Thinking back on this, I'm pretty sure the conditions (and my terrible drifting abilities) were triggering ice mode. Pumping the pedal was an almost instinctual reaction (kinda like flicking a switch a bunch of times when it doesn't do what you expect), so it was not as scary as I thought. I bet it's WAY scarier when going into a corner at 120+ mph though!