Lap timer

[monaro308]

Just a question on lap timers...I have an old Speedwerx infrared lap timer that i use to use in my karting days.
It has the pick up and timer display that sits in th kart/car and the Beacon that sits on the side of the track.
Now my question is the lap timer from memory has a 10 lap max on it ,which is fine but the timing is 1 minute max per lap (i'll have to power up both units to remember if it in fact 1 min max
possibly 2 mins.

If i'm doing Phillip Island,i'll be looking at 2 mins + lap times.
What controls the max timed lap on a timing system ie 555 timer,firmware,etc ?
Can it be changed to say a 3 min max
Electronics is not my forte

I want to make use of the lap timer in the VT since its sitting around doing nothing.
cheers

[antus]

my guess would be that its limited by both storage size, and firmware. i doubt they artificially limited the lap times like that. i dont like your chances but if you can post up some pics of the guts of the car module we can see if we can id it.

[monaro308]

Thanks Antus,i'll get the cover off it in the next couple of days and post some pics.
From memory there were the same units that would do a particular type of job ie Karting most closed club meetings would have under 10 laps per heat and alot of tracks were under 1 minute.
Then what looked like the same lap timer would give you 20 odd laps and a higher timed lap which catered for superkarts-motorbikes etc
The units all looked the same but the price went up because of the higher max laps and the timed lap.
I'll post pics anyway.
cheers and a Happy New Year to the Delco family!

[monaro308]

Ok i've sorted out my lap timer.
Speedwerx were the supplier but Kartronix are the maker of the LT32 ie Lap timer 32 laps
Sooo 32 lap max = great
I found an explanation about timing side of it,i found instructions on the net.

The Display will show lap times off up to 1 minute as say 57.99, between 1 and 2 minutes as say 1.35.26,
but over 2 minutes as say 05.34.instead of 2.05.34
This is because the display cannot physically display a 2,
so a little common sense is required.

Case closed