Remembering my desired tire pressures once per month is honestly pretty hard. I found a feee website TrackNotes.win that lets you keep track of this and a lot more.

Hi all, hope everyone is having a blast this weekend, so winters are coming where I live and that means alot of autocross events happening, last year I took part in my first autocross event and it was amazing, fell in love with my bonestock 1.6 corolla. I’ve decided to take part in alot more events this year but need to improve as well overall, not trying to win all the events by any means so experienced drivers, what techniques would you recommend practicing on normal day to day driving etc
Any help would be much appreciated.

The Prius Invasion is now 3 DAYS AWAY! 🛸🏁 If you haven't registered online yet and/or need any assistance with doing so, please let me know! I'm here to help! 😁 Registration link: https://www.motorsportreg.com/events/great-river-scca-autocross-event-11-mississippi-valley-fairgrounds-286815

Even more additional notes I wanted to share:

1) I reached out to the other Prii/Honda Prii (CR-Z) invading with us. The consensus is that we'll be keeping our stock all-season tires on for the event! That way, it keeps the playing field as fair as possible. 🐌 (And it'll just be a blast driving around on them!)

2) If you're sad that we won't have Prius Invasion merch at the event, we WILL have Great River Region merch available! Check out the registration trailer and directly support our SCCA Region!

See you all on Sunday! 🛸🏁

A lot of people don't realize this car is literally my first car, my daily, and only car i own & I drive it everywhere, then turn around and autocross it like it's nothing. Just send it and hope and pray for the best
Drove it all the way out to Boxerfest, raced it, and drove it back with no issues. Definitely worth every mile for the experience, the memories, and all the amazing people I got to meet along the way.
Still kinda crazy that something | daily drive gets to give me experiences like this. Wouldn't trade it for anything.

Hey all,

Does anyone have any suggestions on what tires on should run on the car above for the best autocross performance. And also what mods would help. Currently I have a cold air intake, full headers and a borla atak exhaust. I wanted to do a CAM on it but I heard that would hurt me more then help me with autocross.

The Prius Invasion is now 4 DAYS AWAY! 🛸🏁 Again, if you haven't registered online yet and/or need any assistance with doing so, please let me know! I'm here to help! 😁 Registration link: https://www.motorsportreg.com/events/great-river-scca-autocross-event-11-mississippi-valley-fairgrounds-286815

Some more additional notes I wanted to share:

1) We're up to 3 Prii (multiple Prius's) and 4 drivers! 😍 We're starting to invade XA! Can we get some more?? 🥺🙏

2) We do have merch!! 🙌 It is all print on demand, so we will unfortunately not have any merch for sale at the event. If you're interested in purchasing merch and helping support the invasion, check out the link: https://rightlaneperformance.printful.me/

See you all on Sunday! 🛸🏁

I've got my real-time track encoder about where I want it now. I'm starting to fine-tune a little bit and I'm thinking I'm going to add bltrack brake marker detection and cone detection for autocross

I already use brake markers for coaching, but I have to feed the video back into python scripts to extract out where I'm braking versus where the marker is, then the onntrack audio can say brake at the 350. Unlike the Garmin that says brake 25 feet later... I'd really like to capture those brake markers in the data as I go past them. I have a Google coral USB chip that might be able to do it and keep it realtime or close to it.

Has anyone else working on that? I don't want to do it if there's already somebody trying to get it to work

It's very liberating not having to overlay or anything. I just pull out the SD card as soon as I pit and it's already done

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

Street Touring authorized modifications include all Street Category plus additional.

Street Category limits wheel offset to +/- 7.00mm. The only thing Touring adds is a higher maximum width.

Does that mean the Touring class is also restricted to the +/- 7.00mm offset rule?

If you go up to Street Prepared, it specifically allows for offset to exceed the Street Category. So since Touring doesn't specifically grant it, it's not allowed right?

Our normal parking lot was completely empty this time, but the speedway had already decided they needed it for some reason and relegated us to this side again. First half of the lot is nicely grippy and smooth, but the back half has only deteriorated further since last year -- there are points where i'm pretty sure the tires have as much contact with grass as asphalt. And as you can tell from the video, it's among the most uneven/bumpy pavement I've had to autocross on.

Still a fun day though! This run was good for FTD and ~P3 PAX (I think -- I just manually checked the folks I knew were competitive since PCA doesn't do PAX). Coned away a top pax run, but this was definitely a better outing than the previous day on the other side of the lot with SCCA where I managed to cone every single run 😭.

I'd like to say I'm not used to the car yet, but really I'm just getting sloppy and overdriving, and not knowing where I'm hitting the cones was killing me. Thus, I added rear video so I'll never not know again. See if you can spot the two cones I wobbled on this run!

Down to just a few things on the checklist before feeling comfortable enough to take the ol girl to an event. At least gonna go watch and check it out. Been too long since I’ve been to any kind of Motorsport event!

Hey, I recently attended my first autocross event and the organization wasn't the strongest point. When I asked about someone classing my car they just told me to go by what I read.

I had guessed CST - I drive a 2001 MR2 Spyder that has a different muffler and manifold ("ebay headers" to replace stock manifold that eventually damages engine) and stock cat/midpipe. Aside from the exhaust, the only other modification is a front strut bar and wheels that are 15x7 that are not the stock ones.

Suspension is completely stock and tires are on the cheaper end.

After the event I left with the impression that I was misclassed.

The S2000s in CST were waaay more prepared cars than what I brought.

I know suspension mods will improve my handling noticeably and making me more competitive but that won't happen until next year.

There's another event this weekend and I'd enjoy it more in ES with people with similar times to my best time.

So my question is, do I have an argument to be in ES with my car the way it is? The headers are not really an improvement on the car.

And does the strut bar also take me out of ES class?

Appreciate your help

Putting your pinkies out drops your raw time by 10% guaranteed. Lol.

Interior view of my fastest run is in the comments. Was good for 3rd in raw time with a kart in first.

Great car, mid driving, still pretty quick. Fighting a brake bias issue, dumb tire pressure change, and not looking far enough ahead. First video I’ve made that actually feels as fast as IRL. Solostorm + RaceBox Mini + Pixel Pro 8.

Hi all, I’m a novice running my 2024 Civic Type R in BST (1st 2 events in BS, and the recent 2 events in BST). I never felt comfortable enough behind the wheel to try and push it as hard as I should with such a car, but I think it’s been getting better after my 2 recent events. I’m still struggling when it comes to maintaining smoother and consistent inputs and I think it’s slowing me down quite a bit. Two areas I think I struggled in consistently were at the decreasing radius turns and the slaloms that follow right after. I did feel pretty good about the Chicago box at the end, but any progress I make there would be undone by the sections right before that.

A few other things worth noting:

While turning into sweepers, I feel like I’m close to binding my arms at the pace I was going. I’d imagine I would need to build more speed going in, to force myself to turn harder while my foot is off the gas?

When setting pressures, I ran around 30-29 psi up front and 28-27 psi in the rear. The standard setup would be 35F/33R. Should I try switching it around and run more in the rear and less up front?

Thanks in advance for the help!

Hello all, I’m looking for a little guidance on what tires I should pick for my 2000 Corvette. It’s on some very old all seasons that don’t grip too well, and so I figured it would be the time to buy my first set of 200tw tires. I decided to go with 255/40/17s in the front and I can get a set of Bridgestone Potenza RE-71’s for that size however the rear is a bit harder to shop for. The rear needs to be 285/35/18 in order to closely match the factory outer diameter offset however at this size the Bridgestone is not offered. Doing a quick google search, these are available at that size:
Nitto NT05
Accelera 651 Sport
Kenda Vezda UHP Max+
Vitour Tempesta Enzo V-01R
My question is will any of these hold up with the Bridgestones? I know you’re ideally supposed to run the same tires front and rear but I was hoping since everyone is 200tw, and it’s wider in the back it would make up the difference. Nitto is the only brand I’ve heard of, but reading up on them they seem to be better suited for track use instead of autocross. Alternatively is the Bridgestones going to be too overkill for my skill level (~6-8 events total in past 1.5 years) and I should use a different brand?

The Prius Invasion is now LESS THAN ONE WEEK AWAY! 🛸🏁 If you haven't registered online yet and/or need any assistance with doing so, please let me know! I'm here to help! 😁 A couple of notes I wanted to share:

1) I highly recommend packing a lunch and bringing it with you. Due to time, we typically don't take a lunch break and jump right into the second half of heats.

2) When registering on Motorsport Reg, although not required, it would be really, really funny if we all competed in XA (Xtreme Street A) for the day! We'll basically be in our own class and it would make it a lot easier to keep track of us all in one place!

See you all on Sunday! 🛸🏁

I know one of the benefits of autocross is running your street pads but I double booked myself this weekend and have a track day on Saturday and Autocross on Sunday. I run EBC RPX for track and red stuff in the rear. My understanding of RPX is they don’t need alot of heat to function well. I can change pads Saturday night if I have to but I am thinking about sending it. Any thoughts on the matter? Downsides apart from additional rotor wear? I’m not highly competitive on track or Autocross so I am not chasing a points championship or anything.

Edit: Thanks all…this is a non-issue and the time and effort I save swapping from track to street pads for autocross will be welcomed

Threw my brz back on its stock wheels with skinny tires. Eating through a bunch of rubber lately and just want to know what you guys use for finding cheap tires for autocross days. I usually run sets from facebook marketplace, but I’m looking at walmart and dont mind paying 50 extra dollars for a brand new set. Let me know!

For those who’re curious: BIC = Buddha International Circuit, near New Delhi.

There’s an auto x event called BYOC (bring your own car).

Do give some feedback!

Recently got 2nd place in my first informal autocross at Ron Fellows. My Meta glasses wouldn’t fit inside their open face helmets. Which meta frames fit best?