HS30-H

That's from the diff... Side-exit exhaust, not rear exit. The car was running on Nissan ECGI electronic fuel injection, and was already tired before starting the race. In late 'endurance' race spec the Works team tended to run the engines purposely rich (to help it to last) and loose, with a driver-controlled engine oil replenishment system. Haller and his team 'inherited' this spec from the car's Works circuit race history, but without necessarily having the full knowledge of the ECGI system or many spare parts to use with it. All things considered, with the later photos of the car in the '75 Le Mans 24hrs race having been taken after 20+ hours of racing, it is not surprising that it was exhibiting the evidence of heavy breathing from all orifices...

You haven't even mentioned the funky external hinges. I am disappoint.

It's not 'construction'. It's deconstruction. Adding lightness. Stress testing and/or torsional rigidity was probably the last thing on the shop boy's mind when his boss told him to get some weight out of the bodyshell. All that is - of course - nothing to do with Nissan. It was done by a privateer owner when the car was no longer this years' race car. And frankly, I've seen worse...

You're welcome.

Stick-on lead wheel weights with extra security of duct tape over the top? Pretty standard racer habit, even today.

Are you looking at the 432-R's standard tailgate prop?

Don't abuse it.

Mandatory fuel tank vent. Required by the regulations.

You've just quoted a link which contains at least three photos of the car in question. The All Japan Suzuka 300km meeting was spread over two days, with qualifying and supporting events on the 17th and the big race and a supporting card on the 18th. So the 432-R practiced & qualified on the 17th and raced on the 18th. Nissan press photos:

It's not much use if you don't know what part(s) are right and what part(s) are wrong. Bad data is like a virus, and if other people repeat your bad data along with the good then that bad data eventually gets set in stone... The first post in this thread is a prime example, isn't it?

Except the Works competition department had cars well before October 1969, and had been consulting on the very fabric of the car before it went into production. Why the obsession? Are you trying to prove something to somebody somewhere?

I would suggest caution advisory when using the JAF online resources. Especially English-translated sections. Lots of mistakes there. JAF's official records are second to none, but they are not reflected in the available online content.

Murayama, like Oppama, Yatabe and Fukurohe, was a test track. Are we counting running on a test track as some kind of 'competition' use now? In any case, I think you'll find that the S30-series Z was on the Oppama test course before Murayama. See what I mean about endless hair-splitting? It might be fun for a while, but it doesn't really get resolved.

There was also a 4.3km lap format.

This event was run on the 6km lap layout for Fuji Speedway.

100 laps? The A and B races at this event were 100 mile races and the heats for the main event were 150 miles each. For the period, those were relatively short races. There were plenty of races in Japan during this period, and of all formats. The bigger events - by their nature - tended to be longer format (in keeping with endurance Sports Car racing) and 500km and 1000km races were not unusual, but there were many regional and 'Clubman' type events of shorter length that could also be described as 'sprint' format.

I'm not hinting at anything. I'm not really interested in any race that was not sanctioned or properly organised, as it would just be subject to endless hair-splitting with no proof of anything. At least with sanctioned events - even on a local club level - you get some official record of what took place. And late October 1969, right? End of the main racing season. I very much doubt any team or privateer actually got hold of an S30-series Z until November 1969 earliest, and it would then need to be prepared for racing. So little or no time left in 1969 and pretty much zero in terms of events to run in. Nissan themselves didn't run a car (a Works 432-R) in an officially-sanctioned race until 18th January 1970. Yes. Moto KITANO in #3 and Motoharu KUROSAWA in #2:

That was one of the supporting card races, not the main event. Clue is the '100 Mile B' in the above. As I mentioned, there were two 150 mile heats of the bill-topping 'All Japan Fuji 300 Mile' race, plus an 'A' class supporting card race of 100 miles and a 'B' class race of 100 miles. The photos you asked about show some of the entries for the main event, not the supporting card. When I get some clear free time.

Simple answer, no. Nothing official anyway. If anyone wants to include a stoplight grand prix then maybe... The photos are from the 'All Japan Fuji 300 Mile' race at Fuji Speedway on 7th June 1970. A rather complicated points race system, the race was run in two heats (each at 40 laps, giving 150 miles) and the overall result was a combined total of points from the two heats, intended to give a chance to all competitors. The blue #19 car was Saburo KOINUMA's privateer 432, and he finished 5th overall and Class 3 winner. The orange #8 car was Kazuyoshi HOSHINO's Works 432-R. That's not the starting grid. It's the main paddock area at Fuji and they are waiting whilst one of the minor supporting races is run.

The blank recess in the early dash was indeed for an optional fog lamps switch. It has been discussed several times on classiczcars in the past. Kats in particular posted some good data on the fog lamps and dedicated switches themselves. Here's a factory RHD dash schematic from November 1969. The arrow is pointing to the switch recess and says 'Fog Lamps Switch (Optional):

This was the 'MUTSUWAN 300' race meeting of 2nd July 1972, a stock car race event held at the self-styled 'Mutsuwan International Speedway' near the town of Noheji in the northern Honshu prefecture of Aomori. Mutsuwan was a valiant attempt to set up a speedway style circuit in a region which was far from the established tracks, but it was in the middle of nowhere and the Oil Shock didn't help. Still, an amazing 92,000 spectators turned up to this particular meeting.

Apparently they designed it so that it could be run both ways. Fuji Speedway occasionally did that too. Check out the impressive Hokkaido Speedway ('HISCO') race control tower: 50m tall, according to the report:

5th July 1970 Its Yasunori TOSHIMORI in his 432-R at the inaugural race for the Hokkaido Speedway circuit. He took a win in the GTS class. The Hokkaido Speedway circuit, located in Shiraoicho - not so far from Noboribetsu's famous onsens and within reasonable travelling distance of Sapporo - seemed like it might become the focus of racing activity for the island of Hokkaido when it opened in 1970. But sadly it was to close in late 1973 after some fatal accidents and legal wranglings, not helped by the 'Oil Shock'.

You don't seem to have taken into account the significance of the incident(s) unfolding in turn one and beyond. Something you apparently have in common with Mr Morton

So, you know how long the piece of string is then...?