Best setup for accurate true time racing data logging?

racingtimingdata loggingTTRsetup

Registration:
27.12.2023
Messages: 441

ZeroCool Topic author

04.01.2025 01:36

I'm getting into competitive racing again and want to start using proper true time racing data logging to improve my lap times. I've heard conflicting advice about whether I should use a dedicated timing chip, or if a high-end GPS unit connected to my dash mount is sufficient. Specifically, I'm wondering about the best method for minimizing external variables like wheel spin or slight track variations from the timing data. Has anyone here had success with a specific brand or model that provides reliable, verifiable data that can withstand the rigors of multiple race weekends? Any advice on calibration or recommended hardware would be greatly appreciated.

15 Answers

04.04.2021
Posts: 717

Daughter_C

15.01.2025 00:22

You really need a dedicated timing chip. GPS drift is a nightmare at high speeds, especially when dealing with tight cornering data.

04.05.2023
Posts: 1189

Cait_F

20.02.2025 20:05

I found success with a combination setup. Use a high-end GPS for general logging, but supplement it with wheel speed sensors mounted near the axle for micro-adjustments. It's overkill, but the data is unparalleled.

03.01.2025
Posts: 1003

RedDragon

27.04.2025 20:55

Short answer: Look into MoTeC or AIM. They are industry standards for a reason. Don't mess around with consumer-grade dash mounts.

09.10.2024
Posts: 1423

Hudson_W

10.05.2025 18:30

Has anyone tested the difference between using a dedicated timing chip versus a highly accurate RTK GPS system? I'm worried that the RTK correction signal might be affected by track infrastructure or other vehicles passing by.

01.12.2024
Posts: 1461

Codsworth_R in response

02.07.2025 05:42

Totally agree with the dedicated chip approach. The consistency and reliability far outweigh the cost difference. My last race weekend with GPS logging was corrupted by signal interference.

18.04.2023
Posts: 841

Cait_F

07.07.2025 20:19

Calibration is key. Regardless of the hardware, you must run a baseline test lap on a known straightaway before every session to account for temperature and atmospheric pressure changes. Don't skip this step.

15.04.2024
Posts: 950

Hudson_W

28.07.2025 09:34

I recommend looking at the CAN bus integration options. If your logging system can pull data directly from the vehicle's ECU (Engine Control Unit), you eliminate almost all variables related to wheel spin or sensor placement.

13.10.2024
Posts: 940

Master_C

19.08.2025 09:32

The GPS unit itself needs to be hardened. Vibration is the enemy of accurate data logging. Check out mounting brackets designed for extreme environments, not just standard dash mounts.

18.10.2023
Posts: 318

QuantumLeap in response

25.08.2025 20:20

reply to previous post: I think the cost of the dedicated chip is worth the peace of mind. My previous GPS unit failed halfway through a qualifying session, costing me valuable data and time. Stick to the proven hardware.

25.01.2025
Posts: 1419

Drake_M

05.10.2025 04:21

Don't forget about data storage capacity. Multiple race weekends generate terabytes of data. Make sure your logging unit has robust, redundant storage options.

22.05.2024
Posts: 1308

TitanStrike

23.10.2025 22:43

If you are budget constrained, start with a high-quality wheel speed sensor setup. It gives you 90% of the accuracy benefit without the massive investment in a full timing package.

15.01.2022
Posts: 458

BlueSpark

02.11.2025 10:01

I found that the biggest variable isn't the chip, but the post-processing software. Make sure whatever hardware you buy integrates with advanced tools that can filter out noise and correct for known track imperfections. Software matters as much as hardware.

07.02.2022
Posts: 1282

Colleague_C in response

03.11.2025 10:37

reply to previous post: Regarding the CAN bus, is it difficult to implement on older vehicle models? I'm driving a classic car, and I'm worried about the electrical compatibility.

22.11.2024
Posts: 258

SynthWave

10.04.2026 20:44

Always check the manufacturer's warranty and support network. When you're racing, you need immediate technical support, not just a box of electronics. Reliability means nothing without support.

21.10.2025
Posts: 577

SolarKnight

14.04.2026 16:59

My advice is to rent a professional package for your first few races. It allows you to test the limits of different systems without committing to a massive purchase. It's a smart way to gather data on the best setup for your specific car.

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