Track Day: TopDrift Round 3 by JustDrift at Streets of Willow w/ Hiro Sumida

With help from Hiro Sumida, long time driver and no stranger to drifting larger 4 door sedans, we were able to gather some great driving and track data from the TopDrift even held by JustDrift. Hiro's original blog post can be found here.

The track was the usual Streets of Willow at the versatile Willow Springs International Raceway in Rosamond, CA. The kicker was, they were running a new reverse layout for this event.

Shingo and Taka, what are they up to?

Hiro decided to swap steering racks to aid with better steering angle. This new layout is smaller, and Streets of Willow is already a tight track to begin with!

Can never have enough steering angle when it comes to drifting!

Vantage point is always the downside at WSIR... Hard to take photos without zoom lens...

Drifting into the night...

After a long day, we took a look at the driving data Hiro provided to see entry speeds and mid-drift speed and G's. In the images below we can see entry speeds approaching the turn, as well as the max speed along the short back straight into the wide skidpad. Solid lines indicate acceleration, while dashed lines indicate deceleration.

Here you can see the previous circuit map data with Hiro's driving data loaded up onto the Driving Analysis Software. As you can see, this layout utilized sections of the track previously not used during our normal track sections.

Is Hiro offroading? During previous events we have primarily ran the main course layout so no data was present

A quick update to the circuit map and now we have alternate routes shown (click to enlarge)

Now with the updated Circuit Map, users can enjoy easy data-logging regardless of the direction or layout of the track. GPS image-based mapping is possible, but basing our data off actual sampling gives us an accurate track layout.

Big thanks to Hiro Sumida and accompanying crew. We hope to gather more circuit maps as well as additional track layouts at future events!

Follow Hiro's blog for direct updates here at http://www.tomeipowered.com/HiroS4Door/

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