My Friend Haruki;
first off congratulation on a great day of racing,you got that 300+1 laps youve been chasing,a 1st place & a TQ,looks like both your cars did excellent,,nice turnout too,13 racers in Can Am's
may i ask did your track have any problems with motors OVERHEATING or blowing up like we did here in Can Am's
if not,maybe we need to look at what type of power supply you have to fix our problems at BPR
Oscar,
Thanks for your warm words.
I missed you at the Western States Can-Am race.
You should have raced very well with a Hanada-Kamoshita car.
At Tokyo D3 races, sometimes motors get so hot and blown up.
My G13 has 4 x Optima Yellow Top batteries(same size as the Blue Tops of BPR around a year ago) + 2 x Bulldog 90 AMP power suplies.
Gary Gerding set the track power enough for a full grid Group 7 racing with mercury relays at each lane.
For D3 racing, we use the batteries only .
Only for qualify, we put on 2 power supplies to get 13.8 volts.
The voltage of the power supplies can be raised to 14.1 V for G7 qualify but we seldom have a chance.
Hot and blown motors happen mostly because of track surface condition and car setting-ups.
We clean the track and spray glue it very carefully.
But running many cars makes track heavy sometimes.
Cars with 10 tooth pinions(high-gear ratio) get hot motors.
Good racing,
Haruki