Figuring your ET without the track

[econo racer]

I have been watching the TV street racers make passes and then come back and look at there smart phone and it tells then 60 ft, Et And mph at 660 ft. OK tell me how dumb I am. How do they do this?

[MT Jeff]

With an app. On their phone. Works off gps. Go to your store and search drag race timer app.

[econo racer]

Alright Jeff I am on the hook -need more help please.

[77cruiser]

Here's one.

https://play.google.com/store/apps/deta ... n_US&gl=US

[rustbucket79]

Dragymotorsports dot com

[MT Jeff]

I play with the one 77cruiser posted. But there are many.

[dannobee]

https://www.amazon.com/dragy-10Hz-Based ... B077KKPMTB

Dragy and the app. Make sure to tape it down if there's no steel nearby, as it'll roll off the dash and under the seat.

[lefty o]

ive seen a few video's where people used the dragy, and they are amazingly close to what the track timers say.

[RDY4WAR]

Tested it out with a friend's car at the dragstrip. It said 12.18 and he ran 12.05. That little bit could be the app not accounting for the rollout of the beams. Pretty darn accurate if you ask me.

[CamKing]

Tested it out with a friend's car at the dragstrip. It said 12.18 and he ran 12.05. That little bit could be the app not accounting for the rollout of the beams. Pretty darn accurate if you ask me.

Most likely, the error is due to the inaccuracy of the phone's GPS. Depending on the phone, and where you are, the GPS location can off a few feet, to 50+ feet.

[BLSTIC]

My app works off the g force sensor. Quite accurate, gives all kinds of data, including road speed vs horsepower

[Nut124]

Anybody use the G-Tech system anymore?

I used one way back before smartphones. It used acceleration sensors. Their latest model uses GPS and acceleration sensors. I wonder if the smart phone apps have done them out.

[F-BIRD'88]

Anybody use the G-Tech system anymore?

I used one way back before smartphones. It used acceleration sensors. Their latest model uses GPS and acceleration sensors. I wonder if the smart phone apps have done them out.

I used the Vericom VC200 .. Its very revealing ..
You can burn up lots of tires and gas testing to see what works and what does not.
Still got it . Haven't used in a while.

[BradH]

Interesting... but requires a car that can actually hook up when not at the track.

[vortecpro]

Anybody use the G-Tech system anymore?

I used one way back before smartphones. It used acceleration sensors. Their latest model uses GPS and acceleration sensors. I wonder if the smart phone apps have done them out.

I used the Vericom VC200 .. Its very revealing ..
You can burn up lots of tires and gas testing to see what works and what does not.
Still got it . Haven't used in a while.

We used the VC in my street racing days as well.