r/CarTrackDays 10h ago

Grattan Raceway in western Michigan is an awesome track!

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26 Upvotes

My first time at the track and these were my fastest laps. It’s a really cool track, lots of elevation changes and challenging corners. I hope to get into the 1:20s eventually.
I was tracking with 3 Balls Racing.
I’m driving a stock manual Supra.


r/CarTrackDays 2h ago

Some shots from Mallory Park (UK)

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12 Upvotes

r/CarTrackDays 23h ago

Some shots from a lapping day at Calabogie Motorsports Park

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12 Upvotes

r/CarTrackDays 9h ago

Nankang CRS durability?

8 Upvotes

Hello,

I'm tossing up between the Nankang CRS and Yokohama AD09 to run on a track setup I'm building.

Those who run one or the other, approximately how many track days do you get out of them?

I'll be happy with something that can last approx 1 year of usage and I'm going to be doing 5-6 track days per year.

Also just adding a sentence to acknowledge awareness of the Continental ECF and Hankook RS4 - both unfortunately aren't sold in the size I want to run here.

Thanks!


r/CarTrackDays 11h ago

Does Guru Rack still exist?

6 Upvotes

Been looking into tire trailers for my 987.2 cayman and my 718 Spyder, and my main obstacle is the tow hitch. Guru Rack has been the standard recommendation for years, but the website is no longer hosted at gururack.com and I haven't gotten any response to email query.

Anyone know if gururack even still exists? And if not, any recommendations for installing a tow hitch on a 987 or 982?


r/CarTrackDays 23h ago

1:21.348 at Putnam Park in my 97 Z3 2.8

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9 Upvotes

r/CarTrackDays 22h ago

Performance shop in NoVa for Japanese car

7 Upvotes

Does anyone have recommendations for a performance/track day oriented auto shop for Japanese cars in Northern Virginia? All the ones I can find seem to specialize in German cars. For pre-track inspections, tuning, and eventually mods. Infiniti specifically if that makes a difference. TIA


r/CarTrackDays 13h ago

Gyro + canbus + gps devices

4 Upvotes

Before I order a few that I've designed are there any other devices out there besides a race capture that do 6 or 9 axis imu, canbus and GPS?

I might have missed one and I don't want to reinvent the wheel. I already have a race capture but I really want something I can control the firmware on, kind of like the diy racebox projects

Using it for my realtime encoder

https://mrblahhhh.github.io/car/tech/2026/08/21/trackencoder-metrics-explained.html


r/CarTrackDays 14h ago

Brake line pressure sensor fitment

3 Upvotes

Hi there!

I have a Bosch High Pressure sensor 

https://www.speedingparts.eu/p/engine-management-electronics/engine-control/sensors/pressure-sensor/bosch-high-pressure-sensor-m10x1-0-261-545-188.html

It states m10x1mm thread and in other sources it mentions 45 degree cone tip.

Because my brake lines use m12x1mm I have a T-connector 

https://www.automotive-line.nl/product/remleiding-t-connector-m12-x-1-00-mm-al-128/

And adaptor 

https://www.automotive-line.nl/product/remleiding-verloopnippel-m10-x-1-00-m12-x-1-00/

The question is, I'm not sure that the adapter and sensor connections will be tight and right for this application.

Does anyone have experience with connecting it tightly?

TIA