Interesting data funola.
It would be interesting to compare it with EGT at the same time.
I cant see that you could time the car with it though.
If you ever find a long up hill stretch that you can use full throttle at about 50mph for about 5 minutes the result would give you when you have max EGT.

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving