Disinfecting the AC system in the Mini

Starting a few weeks ago the AC in the Mini started to have a bad wet dog / mildew kind of smell that was making us feel sick. To address this, I got a can of Klima Cleaner Pro, removed the air cabin filters that were still very new in the car then sprayed everything in there to disinfect the system. I let it soak up and drip out of the condensation drain for about 15 minutes, reinstalled the filters, then ran the air on high (no recirc) for 15 minutes to let it go through the system. Pretty simple 30 minute total job. 

It definitely smells better now though I may need to reapply one more time if it's not 100% gone. Seems to be a common BMW/Mini problem maybe in the way the condensation drain is set up. At least I know the drain itself isn't clogged since I saw all the fluid I was spraying in eventually go out the drain and drop onto the ground under the car. 

New Haltech ECU for Bumblestook

A few months ago I noticed that I could no longer connect my old laptop to my Haltech ECU. It wouldn't detect it and later it would actually shut my laptop off if I did. I setup a new laptop to see if the laptop was the issue but it gave a warning that whatever was plugged into the USB port was drawing too much power. I knew at this point the USB port on my Haltech Pro Plug-in must've shorted out since changing the cable didn't fix it either. 

Old ECU left vs New ECU right

I ordered a new Haltech Pro Plugin for the S2000 which looks pretty cool with the new black and yellow color scheme to match the car. The guts and the firmware haven't really changed since years ago so it was as simple was swapping everything over, reloading my tune and configuration and firing the car up. I did recalibrate the TPS voltage which has changed a bit over time just to make sure everything was good and everything ran just fine.

New ECU

New ECU talking to my new laptop just fine

Joe Engineering NACA duct

I've had the Achtungcraft air duct for the oil cooler on Scarlett for some time now and the screen has started to come off. I've also unfortunately hit it with my knee a few times when walking around the car. I saw the new NACA air duct from Joe Engineering and it looks much better. It's streamlined into the bumper so nothing is protruding and funnels air nicely to the oil cooler. I ordered the premium version which has a nicer finish and made of better material. 

Joe Engineering NACA duct

Joe Engineering vs Achtungcraft

Install was super easy and just took a few minutes since I had already removed the side marker before to install the Achtungcraft duct. I made some suggestions to Jose about how to improve on it a bit in the future but overall a nice piece.

NACA duct installed

New cabin filter for the Mini

The AC has started to smell a bit musty so it's probably time for the air cabin filter to be replaced on the Mini. I curse the engineer who designed this system. Not only is it all the way in the center console but the flap you open up to replace it, goes up to open so it's literally trying to close on you as you remove and install the new filter.

Old filter left - New filter right

Maintenance Update:

Mileage: 81,065

- New Hengst air cabin filter

First autocross in a year

It was May 11 of last year when I last autocrossed, which was in the 944. Obviously feeling super rusty so enlisted my equally rusty friend, Rad, to codrive with me in the Cayman. We had a fun little battle where he got me on his last run but I was able to find a bit more time to take the win on my last run. Good times, great weather, loads of fun. I definitely miss this.

NNJR SCCA Autocross - 5-18-2025

The Motocompacto also made an appearance
Photo by: Autox4u

Run comparison

Pre-autocross maintenance

Not only has it been over a year since my last autocross but it's been even more than that for the Cayman. I signed up for the NNJR SCCA autocross on Sunday but since it's been over 2 years since I changed the transaxle fluid and brake fluid, I wanted to get that sorted before any kind of actual performance driving. Went to see SJF Performance to get this all sorted. First was a full flush of the brake fluid with Motul RBF600.

Fresh Motul RBF600

Fresh Motul RBF600

Next was fresh Motul Gear Oil for the transaxle. The oil fluid actually came out super clean, still the same blue color this fluid comes in from the bottle so there's definitely no excessive wear on the OSGiken diff inside it.

Motul SAE 75W150 gear oil

I also wanted to see of my Honda Motcompacto could fit in the trunk and was pleased to see that it did so I can take it to events to get around.

Motocompacto in rear trunk of the Cayman

Maintenance Update:

Mileage: 54,100

- 1.5L Motul RBF600

- 3 quarts Motul SAE 75W150 gear oil

2025 Season Opener with S2K Takeover at NYST

Finally got my first track days in for the year. We had a great 2 days at NY Safety Track doing the uptown track on day 1 and the downtown track on day 2. Despite the one and off rain, we had a great time and the car was feeling really good. Looks like some of the late season suspension changes we did last year really sorted out the noise issues on the rear suspension and the lack of front caster.

NYST 5/5/2025

NYST 5/5/2025

The new Fire Link setup is making it super easy to not only gather real time telemetry but as a learning aide to understand where I can drive faster using Fire Laps. It consists of a GPS antenna and logger with LTE capabilities so it can transmit data directly to your firelaps account as you run. The analysis at the end of each session lets you hone in on each section and find out what you can do to extract some more pace.

 

NYST 5/5/2025

Firelaps data analysis

Overall it was a terrific 2-day event and I can't wait for our next event in July at NJ Motorsports Park.

Uptown - 1:40:02

Downtown - 1:43:9

Track prep for Bumblestook

First track day of the season is coming up so it's time to get Bumblestook ready. Took her to SJF to get brake fluid flushed and new StopTech cryo slotted rotors installed. I actually ordered these rotors over a year ago. I got half of them a few weeks later but the other two got backordered over a year so I had been running regular blanks end of last year. I prefer the cryo because so far they've been reliable.

Brake fluid flush

new rotors

fresh brake fluid

Maintenance Update:

Mileage: 67,274

- 1L Motul RBF 600

- 4 StopTech Cryo Slotted Rotors

Washer Fluid Pump Strainer

Over the winter I noticed a pool of fluid under the Jeep. Thankfully it wasn't oil but rather just washer fluid draining out. Turns out the strainer for the washer fluid pump has a plastic "seal" that distorts over time. I read that I can replace it with a BMW part number equivalent that uses rubber instead. Easy 2 minute fix and no more leaks. 

pulling the washer fluid pump out - 
leaking strainer at the bottom

Replacing the failed strainer with the new BMW part

Maintenance Update:

Mileage: 82,120

- New washer fluid strainer - BMW Part Number 61667006063

High Performance Water Pump

A common failure point on the 987/997 is the water pump. The impellers eventually wear out and disintegrate. The good news it that the impellers are plastic and don't damage the engine if it goes but it could clog somewhere and cause cooling issues. The best way to avoid this is preventative maintenance and replacing it regularly. One of the previous owners of my Cayman replaced it at 25K miles but that was many years ago now (close to 10 years) so I figured it was time for me to do the same just for peace of mind. I went and got an FVD high performance water fuel pump with a plastic composite impeller. The kit included new gaskets and a lower temperature thermostat.

FVD High Performance water pump with plastic impeller

FVD High Performance water pump with plastic impeller

Lower temp thermostat

Lee at Hybrid Motors made quick work of this and obviously changed the coolant as well. The condition of my old pump was good. No chips or missing pieces from the impeller so that's always a good sign that everything is healthy.

Maintenance Update:

Mileage: 54,007 miles

- New FVD High Performance Water Pump
- Lower temp thermostat
- New belt
- New coolant

Racer's Edge Camber Plates

One thing I wanted to fix on the 944 was the ride height. The rear sagged too much and the fronts were too high. I also didn't have enough camber. To fix this I bought a pair of Racer's Edge camber plates

I took the car to Lee at Hybrid Motorsports and had him install it along with reindexing the rear torsion bar (which I'll note appears to have already been upgraded to 27mm at some point) to raise the rear for a more even ride height.

Maintenance Update:

Mileage: 98,271

• Racer's Edge camber plates
• New OEM caster blocks
• Rear ride height raised
• Alignment

Oil Change on Scarlett

Finally getting a break from the snow. Time to prep the cars for Spring starting with an oil change for Scarlett.

Maintenance Update:

Mileage: 173,690

- 11.5 quarts Driven GP-1 20W-50
- Mahle OC54 oil filter