r/Autocross

New head mod for this weekend's autocross

New head mod for this weekend's autocross

Hoping this helps me shave at least a second off my lap times. I have done two events so far with just a normal baseball hat in between laps and I'm ready to take it to the next level.

u/Bobatea — 10 days ago
▲ 0 r/Autocross+1 crossposts

Update on Perfect Apex: Permanent Unlimited Storage for Everyone, Community Reference Laps, AI Follow-Ups, and Telemetry Auto-Detection (plus AiM support!)

Hey everyone,

A while back I shared Perfect Apex here: an open lap analysis tool and AI Race Engineer built for track day drivers using loggers like TrackAddict, RaceChrono, and RaceBox.

I recently rolled out a major platform update to our email subscribers, and wanted to share the highlights with the community here too.

The biggest news: we have permanently eliminated storage caps across all tiers.

We previously enforced session storage limits on free accounts, but capping your telemetry gets in the way of what matters most: logging your progress across seasons and learning from each other. So free Rookie accounts now get 100% unlimited session storage.

To make this sustainable and build a real benchmark library for grassroots drivers, only paid accounts (Racer & Pro) can make sessions private. In return, all free sessions stay public to power our new Community Reference Laps, giving everyone unlimited storage while helping the community compare lines and find time.

Here is what recently rolled out:

🏁 Community Reference Laps

You no longer have to analyze your laps in a vacuum. Perfect Apex now automatically matches your session against faster community benchmark laps on the same track and layout:

  • Instant Delta Overlays: See exactly where faster drivers are braking later, carrying more apex speed, and getting on throttle sooner.
  • Side-by-Side Telemetry: Compare your speed, braking deceleration, and G-force curves against target benchmark laps.
  • Community-Powered: Every public session uploaded helps build a deeper benchmark dataset for the entire track community.
  • Pro Exclusive - Manual Reference Lap Browser: Pro members can click the reference badge to open the exclusive Reference Lap Browser, filtering community sessions by car, driver, and lap time to handpick specific benchmark targets to overlay directly on their charts and track map.

Compare against other drivers at the same track

🔄 Refined Cross-Session AI Insights & Shareable Debriefs

Track days don't happen in a single 15-minute stint. We have upgraded cross-session analysis to generate structured AI coaching insights directly inside your analysis workspace:

  • Automated Multi-Session Insights: Compare morning vs. afternoon stints or track setup changes across sessions. The AI automatically synthesizes your driving habits, pace trends, and consistency evolutions into clear coaching summaries right in your analysis window.
  • 1-Click Event Debriefs: Tap "Analyze Full Event" directly on your home dashboard to instantly generate a unified multi-session coaching debrief across your entire track day.
  • Shareable Debriefs with Full Chat Privacy: You can now share your full AI coaching debriefs with friends, instructors, or community forums. Spectators can read the complete analysis and explore interactive track maps and mini-charts, while your private chat history stays 100% confidential.

Get better insight across a full day

💡 1-Tap AI Follow-Up Coaching Prompts

Digging into your telemetry just got much faster. After your AI Race Engineer finishes analyzing your session, you will now see 1-tap suggested follow-up questions:

  • Context-Aware: Questions are generated specifically from your driving patterns (e.g., "How can I carry more entry speed through Turn 3 without upsetting the chassis?").
  • One-Tap Deep Dives: Tap any prompt chip to instantly dive into specific corners, braking zones, or consistency habits with zero typing.

1-tap conversation followups

🔍 Smart Telemetry Auto-Detection & AiM Sports Support

You no longer have to manually select your data logger or file format from a dropdown:

  • Format Auto-Detection: Just upload your telemetry file. The engine automatically identifies whether it is from TrackAddict, RaceBox, RaceChrono, AiM Sports, Lap Legend, Harry's Lap Timer, Apex Pro, Circuit Storm, SoloStorm, or Qstarz. (Manual overrides remain available if you ever want them).
  • AiM Sports Support (Experimental): You can now upload raw CSV exports directly from AiM Race Studio 2 and Race Studio 3.
  • Major Parser Resilience Overhaul: We recently ran an exhaustive audit against hundreds of real-world sessions and resolved edge-case parsing bugs across all supported loggers.

Have a file that previously failed to upload? Try it again!
If you previously ran into an error or had a session that wouldn't parse, please give it another shot now. With our new auto-detection and overhauled parser resilience, your data should import cleanly, and we have added clearer guidance if anything ever needs attention.

⏱️ Exact Millisecond Lap Times

We have upgraded our timing engine for deeper accuracy: official transponder and logger times are now extracted down to the millisecond directly from your data files across TrackAddict, RaceBox, and RaceChrono, giving you millisecond delta precision against your personal best and community benchmark traces.

⚡ Unified AI Coaching (With Increased Limits!)

We have eliminated rigid separate limits for session uploads vs. chat questions, replacing them with one flexible monthly pool of AI Interactions with significantly increased capacity (40/mo on Racer and 100/mo on Pro, plus 3 free interactions every month for Rookie accounts). Whether you want to auto-analyze a high volume of stints or dive deep into the telemetry details in chat with your AI coach, the choice is 100% yours, with clean monthly billing cycle resets.

As always, Perfect Apex is a solo passion project built on community feedback. If you have got laps from your last track weekend, upload them and see how you stack up against the community references or help to build a deeper reference library!

Try it out free here: https://www.perfect-apex.com/

Drop a comment or DM if you run into any quirks, have feedback on the reference lap matching, or have ideas for future features.

See you on track,
Ryan

reddit.com
u/Trance101 — 8 days ago

[New England] Oct 11th, join us for the biggest autocross event of the year!

The spring Pizza Nats was the biggest autocross of the year at Devens and the Fall edition could be even bigger.

This is an uncapped SVT event. Normally ~65 people and selling out in minutes!.

As many runs as WE can cram in!
As much pizza as YOU can cram in!

Come and join Deven's most in-demand autocross event

Details and Register today at:
https://www.motorsportreg.com/events/ne-s-t-fall-pizza-nationals-devens-airfield-ne-svt-554694

u/BadgerOfParadise — 10 days ago

Looking for some driving shoes - would prefer no leather or faux-leather?

Hi all - I recently imported a little FIAT 126 in January from Italy to here in Nova Scotia. The little car is a blast, but the pedalbox is really tight so I can't drive it with my usual sneakers on.

I'm looking for a decent set of driving shoes, but I am not a fan of leather or faux-leather. With their thinner soles, and narrower profile, it would be easier to drive without having to take my shoes off.

Anybody have any suggestions? :)

Cheers and thanks!

reddit.com
u/RallyDarkstrike — 11 days ago

I built a live timing results page with pretty graphs and fun features

Hey there!

Today I'd like to introduce a tool that I've been working on for the better part of this season and have been alpha-testing in a few regions, mostly around the NC/VA area and more recently in the NJ/PA area.

This started off as a little passion project of mine, where I was trying to look for trends in results of mine over the past few years and try to draw some conclusions around tire brand, site, day of the week, any little bit of data I could try to correlate. I spent a few nights hand-building a python script to parse all of the results from my home club's sheets into a database so I could run SQL queries against the data.

Eventually I decided that graphing this data would be a neat interpretation of it, and built a small webapp for showing graphs of past events, and eventually opened it up to my friends in the club to use too. Quite a few people found it useful, and one of my friends said it would be nice if we could use this for live timing. After lots of building and hardening of the parsing library, the app now supports a wide variety of live timing software to pull from.

So here's a feature list of everything SoloCharts has to offer so far!

  • Has live graphs that show drivers run-over-run, along with options to hide certain drivers or to not show cones
  • Has a "custom class" option, where people can add themselves and their friends to a custom class for easily comparing each other's times (personal favorite of mine)
  • Supports parsing Pronto, AXWare, and AXWareORM live results
  • Has overall results for PAX/RAW regardless of the source live timing system
  • Supports switching between PAX/RAW for indexed classes
  • Supports 2-day pronto events like national tours, or 2-day locals.
  • Absolutely free to use. I'm not trying to make money off of this, this is just a passion project that I've been using to sharpen some webdev skills of mine.

For the last month of this season, if anybody would like to have their club's event on the site to further test the system, I'd love to add it, and I'm more than happy to answer any questions/comments/concerns :)
https://solocharts.com/

Copy of the AI disclosure from the site:

I believe in disclosing AI usage in this day and age, allowing people to make informed decisions about their usage of apps. SoloCharts code is largely (>90%) handwritten. All logos, backend/database code, and frontend logic and layouts were done by people. The only place AI code was used was in ensuring that the app scaled properly for all screen sizes and for generating test cases to ensure platform stability across a variety of different live timing software formats.

reddit.com
u/TSANoFro — 11 days ago

Prius Invasion is TOMORROW! 🛸🏁

The stage is set! 👏🏁

7 drivers. 🚗

5 Prii (and Honda Prii). 🐌

One Invasion. 🛸

Who will be crowned THE Fastest Prius in the Quad Cities? Find out tomorrow at the Mississippi Valley Fairgrounds in Davenport, Iowa!

Stay tuned for the link to live timing and follow along! 🛸🏁

u/RightLanePerformance — 12 days ago