Closed Loop Telemetry

A WIRELESS LOGGER
FOR GRASSROOTS RACERS.

Know what the car's actually doing. The iRacing-style delta bar — on a real car. Sub-40 ms lap timing, GPS and shock travel, all streaming wirelessly to an Android phone on your dash.

Not for sale yet. We're race-testing it on our own car first. Drop your email and we'll let you know when it ships.

Live iRacing-style delta bar on the Closed Loop Telemetry in-car HUD

WHAT IT DOES

LIVE HUD

LIVE HUD

The iRacing-style delta bar — on a real car. Three swipeable screens during a session: full-width delta vs. best, speed, and a GPS map of the track.

WIRELESS SENSORS

WIRELESS SENSORS

GPS/IMU at 25 Hz, custom shock position sensors at 50–100 Hz, and GoPro start/stop. All paired to the phone at the same time.

SUB-40 MS LAP TIMING

SUB-40 MS LAP TIMING

Interpolated between GPS samples instead of nearest-sample rounding. Crossing error averages ±34 ms in real session data — about a 19% improvement.

SESSION REVIEW
SESSION REVIEW

SESSION REVIEW

Lap list, hot-lap filter, speed / G / shock / delta plots, and a GPS map with a speed-colored racing line.

WHAT'S DONE, WHAT ISN'T

Working today

GPS and shock sensor data acquisition, in-app session review, and GoPro recording.

In progress

Race-hardened hardware kit, cleaner setup flow, iOS port (exploratory).

Founding 100

FIRST 100 ON THE LIST
GET FOUNDER PRICING.

Early invite, a direct line while we're building it, and locked-in pricing when we open orders. No card, no commitment.

GET ON THE LIST

One email. We'll only contact you when there's something to say.

WHO'S BUILDING THIS

The builder at the track

I'm a racer and an electrical engineer. I couldn't believe what commercial loggers cost for what's actually in the box, so I built my own. The goal is to put real data in the hands of grassroots racers — the ones making decisions on feel because a five-figure data system isn't in the cards.

Closing the loop between the racer and what the car is actually doing — that's what we're about at Closed Loop Racing.