In 1974 Mazda introduced the RX-4 wagon with the 13B rotary engine, it’s first debut in the US. Rob found this RX-4 in fantastic shape, it was a real time-capsule! The interior is really impressive with stock panels, seats, and carpeting all intact. Check out the factory air cleaner, and the peace-statement bumper sticker. Rob definitely has a problem: he is addicted to vintage Japanese cars. Find out how he came upon this RX-4:

“While in my early 20s I owned a rotary-powered 510 race car… which made me wanting more so I played with a few 1st gen RX-7s and for a brief period I even owned a 1974 Rx-4 coupe. I am always on the hunt for clean, early Rotary-powered cars. My morning and evening ritual is to cruise Craigslist with my favorite searches. One day I came across an ad for a 1974 RX4 station wagon. I called and arranged a time to see it. It had been sitting in a barn for about 10 years. We hooked up a battery and all the lights worked. The car was really clean so I had to buy it. The following day I had the car towed to ZCG. Once it got to the shop we went to work right away to clean it up and see if it ran.”

“By the end of the second day we got the Rotary Wagon to light off, but it was smoking enough to make Archer St. disappear! The rear rotor seals failed. I was bummed but I knew what this would lead too. The engine was removed and sent to Rebello racing. A few months later the engine was back and ready to go in the car. Using a Racing Beat header and stock carb the piston-less engine put down some nice numbers(188hp/165tq) on the Rebello dyno. A larger carb is on the way!”


The great thing about this wagon besides its functionality is that it’s a hoot to drive!  RWD and the 13B: A legendary motor with 30 years of years of tuning/aftermarket support. Leave it to Rob and the crew at ZCG to get any car running, and performing better than it did from the factory.  ZCG’s dyno shows a surprisingly torquey motor with over 100ft-lbs available from 2000 to 6000rpm!:

Rob drove the Rotary Wagon through the winding hills of Santa Cruz on our last fun run to Canepa Design in Scotts Valley. I was amazed how he hurtled this car around corners at 60-70mph, didn’t see that coming! The rotary sounds distinctive. I had a chance to commute in this wagon for about a week and it was a blast!
Here are few videos to give you an idea what the 13B sounds like:
2nd-gear roll-on from 4500rpm:

Cruising happily on the freeway:

Freeway merging is a breeze!

Rob and the vintage Mazda are featured in the upcoming April issue of the Japanese car magazine “NostalgicHero”!

Rob’s interest in vintage Japanese cars is contagious and word on the street is that there may be an old Subaru hanging out at ZCG, stay tuned!
More pictures below
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