EVENTS: SevenStock 16

029_Mazda REPU

Mecca for Mazdafarians. That was the scene at SevenStock 16 last weekend, held at the Auto Club Speedway in Fontana, California. This year’s gathering for fans of rotary engine was one of the biggest in recent memory, and although everything from Cosmo Sport to RX-8 was represented, it was the largest turnout for old school Mazdas we’ve ever seen. 

013_Mazda REPU

We counted a dozen REPUs, all the RX-2s in southern California, and more RX-7s than you could shake an eccentric shaft at. Early in the morning the organizers staged the cars for the traditional SevenStock parade. The cars are grouped together by class — FD, FC, and SA/FB, and old school.

015_Mazda RX7 FB026_Mazda RX7

When it was the nostalgic Mazdas’ turn to roll in, the line felt longer than the Macy’s Thanksgiving Day Parade.

003_Mazda RX3

With the San Gabriel mountains looming and the speedway grandstands towering in the background, the day was ready to begin.

023_Mazda RX2 Capella

We were immediately drawn to the rare machines, like this imported Capella GSII that Justin first snapped at MazFest, The cancer holes on the hood are all repairable with a bit of metal work, and it would be nice to see this car in its original glory.

055_Mazda RX3 sedan024_Mazda RX3 sedan

We were shocked to see not one, but two RX-3 sedans. These weren’t officially sold in the US, so how two LHD examples appeared was a mystery, even to our friends at Mazda. Can our Canadian friends confirm whether they were sold there? The owner of the silver one told us he found it in Arkansas. Update! Our excellent commetariat have confirmed that the four-door RX-3 was indeed sold in the US!

014_Mazda 808

There was even a Mazda Mizer, built on the same chassis as an RX-3 but with a different nose and a piston engine. We’re guessing it won’t stay that way for long, since heavy mods seem to be popular with SoCal rotorheads.

094_Mazda RX7 Limited Edition

We couldn’t quite figure out this Limited Edition RX-7. In 1983 Mazda released a run of FBs with limited edition badging, red pinstripes and these 14×5.5 wheels. However, we were under the impression they were all silver, not gray. Perhaps a rotary otaku can clarify in the comments.

078_Mazda RX3 Wagon

Several rotary wagons showed up, including a pair of bone stock RX-3s. We heard the silver one start up at the end of the day and true to the commercial, it just hummed, smooth as silk.

088_Mazda RX3 Wagon090_Mazda RX3 Wagon

This little red drag wagon was just plain sweet, especially with the little strip of factory wood grain on its tailgate.

100_Mazda Cosmo Sport 110S

It was appropriate that the event took place at one of SoCal’s few remaining motorsports parks, as the Mazda PR guys love to remind us that on any given weekend there are more of their cars on racetracks than any other marque.

106_Mazda 787B paddock

Mazda USA brought out several of its classic and racing vehicles to join the show, including the beautiful Cosmo Sport and the 787B number 003.


Throughout the day, drivers took the race cars onto the speedway. The banshee wail of these three- and four-rotor Wankels echoing off the steep banks was like a choir of precision machined angels.

117_Mazda RX-792P

As priceless as these cars are, the Mazda drivers pushed them hard, even as far as breaking the carbon fiber front lip of the RX-792P, perhaps due to too much downforce.


As the cars downshifted, bursts of flame leapt from the exhaust to match their dragon-like roars.

160_Mazda Cosmo generations

Mazda USA brought out their Eunos JC Cosmo, among the most advanced cars in the world when it debuted. It’s not nostalgic yet, but the one and only production triple-rotor machine will definitely be a classic in 2015.

123_Mazda RX7 Spirit R

Mazda USA built its own Spirit R, a special run of 1500 FD3Ses before it was killed. However, this was a US-market LHD car that was converted to Spirit R spec.

008_Mazda Racing Beat

The folks at Racing Beat had a lot of rotary parts on display, like Weber IDA carbs and manifolds for peripheral port 13Bs.

006_Mazda Racing Beat

Holley carburetor kits for 12A and 13B engines, both stock and ported, are still available, topped by a cool Racing Beat air cleaner.

038_Mazda RX7 FC

Although there were many FC3S RX-7 at the show, finding one in clean, un- or mildly molested condition is getting close to impossible these days. Turbos are even rarer. If you must have one, you better pick one up quick.

051_Mazda RX7 FD

FDs are getting to that point too. Few stock examples were present at the show. Anyone who puts a garish aero kit on one of these should be shot on pure principle.

136_Mazda RX5 Cosmo

At the end of the show, awards are distributed and JNC had the honor of choosing the best old school rotary along with the SevenStock staff. We had to award it to Levan Blind‘s absolutely mint Mazda Cosmo RX-5.

134_Mazda RX5 Cosmo

It would have been a sight just to see an all-original RX-5, but to see one that, after over three decades, had nary a ding on its doors and was positively immaculate, was simply amazing. Not only was the paint and interior stunningly original, some items in the tool kit still were still wrapped in its original tissue paper.

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11 Responses to EVENTS: SevenStock 16

  1. Dutch 1960 says:

    RX3 sedans were sold in the US in 1972 and 1973, but not many were bought. They were dropped in the US for the 1974 model year. The Limited Edition FB RX7s were painted a silver-grey with a bit of gold in it. I think the early morning light is “greying out” the color in your photo. That Limited Edition color is almost impossible to paint match, in the event of a ding in the paint.

  2. Jimbo says:

    The Limited Edition RX-7 has probably been re-painted. Look at the trim strip and you can see it is in a different location than the stock cars. It does not look right. Also, I would guess the Mizer already has a rotary engine. Unless they changed their policy they don’t allow non- rotaries as a rule.

  3. Dave says:

    The exact name of the color for the ’83 Limited Edition is “Chateau Silver,” and it’s lighter than what’s on that car. Also, it’s supposed to have pinstripes, not red on the rubber strips. The interior is also supposed to be red, which is hard to tell in the photo. The wheels are correct (and are beautiful), but that car is probably resprayed.

    Sevenstock does allow non-rotaries, as long as they’re Mazdas. For instance, sometimes there’s a handful of RX-7s w/ V8 transplants. I hope that Mizer stays original. It’s a bit of an oddball Mazda and deserves to be preserved.

  4. Joe Cepeda says:

    I second that 4 door RX-3 sedans were sold in the U.S. We had quite a few in Brooklyn, NY in the 80’s and we knew for a fact those were local cars. Also isn’t the Mazda Mizer the same as a Mazda 808?

  5. r100guy says:

    They did in fact sell the RX3 sedan in ’74 as well, complete with the big bumpers. There was a ’74 RX3 sedan parked out back of our local Ford dealer for years. I should have tried to buy it as they are probably the rarest RX3 version in North America.


  6. kidrotary says:

    Yep… Rx3 Sedan sold here in the U.S.. but … they where really not findable these guys are so lucky very happy to see them here in the U.S.
    I found my LHD Rx3 Sedan in Canada… in 95.. good find Guys!

    Here’s a link if anyone is interested:

  7. Kelly says:

    Its about time you guys uploaded this pictures 🙂

  8. Two Evil rx3 says:

    The 83 Limited Edition Rx7 is plastic dipped not painted it still has its origanal paint under the plastic dip the owner of the car is looking to paint it to its original color. The inside has not been touched its still red .

  9. Jesse Risk says:

    RX5 love! i recently bought a 77′ 121 coupe in factory cream with brown pin-striping. no rust, just the paint is a bit tired. its going to be a long build to get her to my standards, but its complete, original (apart from the dodgy ignition system) and only has very minor surfac rust in the wheel-wells/guards

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