The Bosch Motorsport C70 is a standalone programmable data logger for circuit racing, hill climb, rally, and endurance applications where a separate, dedicated logging device is preferred over ECU-integrated logging. It fits alongside any ECU — Bosch or third-party — via CAN or Ethernet, allowing engine and chassis data from multiple sources to be synchronised and logged in a single file for WinDarab V7 analysis.
The C70 ships with full logging enabled as standard: 4 GB internal storage, 1,500 channels, 1,000 Hz — no software unlock required. A second 4 GB partition is available as an optional field-upgradeable software key (FULL_LOG_2), providing a dedicated long-term recording section for back-to-back sessions without downloading between runs. USB data copy is also available as a software upgrade, enabling data transfer via flash drive during a pit stop.
LTE Ethernet telemetry and GSM telemetry are included in the base C70 configuration — no license or additional software key required for either.
The C70 includes built-in GPS lap trigger support, pre-dated lap time calculation, and page change on events — the standard triggers used for lap timing and driver coaching. Its 667 MHz dual-core processor handles real-time mathematical channel processing: filter functions, conditional channels, and derived variables can be calculated on-device and stored without post-processing load on the analysis workstation.
Additional sensors and devices connect via 2 CAN channels and Ethernet. The RS232 port accepts a GPS receiver for position logging.
Technical Specifications
| Property | Value |
|---|---|
| SKU | F02U.V02.302-02 |
| Processor | 667 MHz dual core |
| Internal storage | 4 GB (Partition 1, standard) + 4 GB (Partition 2, FULL_LOG_2 option) |
| Max channels | 1,500 at 1,000 Hz (1 ms) — standard, no unlock required |
| Analog inputs (standard) | 4 (12-bit, switchable pull-up) |
| Speed inputs (standard) | 4 (Hall-effect or DF11-compatible) |
| Analog inputs (optional) | +12 (total 16 analog) |
| CAN | 2 |
| Ethernet | Yes |
| LTE Ethernet telemetry | Included — no license required |
| GSM telemetry | Included — no license required |
| RS232 | Yes (GPS receiver input) |
| GPS | Lap trigger, pre-dated lap time, track position |
| USB recording | Optional (field-upgradeable software key) |
| Analysis software | WinDarab V7 |
| Field upgrades | FULL_LOG_2 (4 GB Partition 2), USB Data |
What You Can Do With It
- Log engine and chassis data from any ECU via CAN or Ethernet in a single synchronised file
- Record GPS-triggered lap times with pre-dating and track position without a separate lap trigger device
- Transmit live data via LTE Ethernet or GSM telemetry — both included in the base configuration, no license required
- Expand to 8 GB total storage with the FULL_LOG_2 software option (activates 4 GB Partition 2)
- Connect 16 analog sensors simultaneously with the optional 12-channel input upgrade
- Activate USB data copy for rapid pit-stop downloads via the USB Data software upgrade
- Create real-time derived mathematical channels on-device — conditional expressions, filters, calculated variables
- Process and replay data in WinDarab V7 using the same analysis environment as the Bosch Motorsport ECU range
- Page-change on events — configure display page transitions triggered by speed, rpm, gear, or any CAN variable
C70 vs C80 Comparison
| Model | Storage | Analog Inputs | Key Differentiator |
|---|---|---|---|
| C70 | 4 GB std + 4 GB (FULL_LOG_2) | 4 + 12 optional | 1,500 ch / 1,000 Hz standard; LTE + GSM telemetry included |
| C80 | 16 GB + 4 GB | 26 + 4 digital | High channel count, sensor interface variant available |
Accessories
- WinDarab V7 — data analysis software (license key)
- WinDarab V7 Annual Maintenance — license renewal (license key)
- Software Upgrade FULL_LOG_2 — activates 4 GB Partition 2 (8 GB total storage; license key, contact us)
- Software Upgrade USB Data — USB pit-stop data copy (license key)
- MSA-Box II — USB configuration interface (kept in stock)
- Rugged USB — motorsport-grade USB flash drive for data copy
- MM7.10 IMU — 6-axis IMU for vehicle dynamics data via CAN
- MM5.10 IMU — 5-axis IMU for vehicle dynamics
FAQ
Does the C70 work with non-Bosch ECUs?
Yes. The C70 connects to any ECU via CAN or Ethernet. It can receive broadcast data from Bosch Motorsport ECUs, Emtron, Link, ECUmaster, MoTeC, and other CAN-capable ECUs. Standard CAN database files (DBC/A2L) define the channel mapping.
What is the standard logging rate on the C70?
The C70 ships with full logging enabled as standard: 1,500 channels at 1,000 Hz on 4 GB Partition 1 — no software key required. The only optional logging upgrade is FULL_LOG_2, which activates a second 4 GB partition for extended back-to-back recording without downloading between sessions.
How do I download data from the C70?
Data downloads via the high-speed Ethernet connection on a laptop running WinDarab V7. The optional USB Data software upgrade adds a USB port connection for pit-stop data copies to a flash drive using the Bosch Motorsport Rugged USB or a standard USB stick.
What is the difference between the C70 and C80?
The C70 is a compact standalone logger with 4 GB storage and 4 + 12 optional analog inputs. The C80 provides 16 GB primary storage, 26 analog inputs, 4 digital inputs, and is also available as a standalone sensor interface unit — suitable for applications with high analog sensor counts or where the logger doubles as a signal conditioning module.
Does the C70 include GPS hardware?
No. The C70 includes software support for GPS lap triggering and track position, connecting to a GPS receiver via the RS232 port. A compatible GPS module must be wired into the harness. Contact XTRA Motorsport for GPS receiver recommendations.
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