Car?

Alan, try to let them go a while....!

steve77

Hmm, looks like a Z432.

Ok guys,

my bet is that the engine bay is of a Z432 (PS30) and the engine is a S20 unit.

The other car that it "may be" is a Z432-R (PS30SB) but I don't think that this is the case here.

Engine specs:

capacity: 1989cc

bore & stroke: 82 x 62.8mm

compression ratio: 9.5:1 (9.0 on Regular)

valve gear: dohc

fuel system: 3 x Solex carburattors

Bhp @ rpm: 160 @ 7000

Torque [lfbt] @ rpm: 132 @ 5600

(power dropped to 155 bhp on Regular)

Now to be fair, do I win the engine???

I dont know if this is a stupid question but is the S20 any relation to the SR20 e.g like the 4 cylinder L series is to the 6?

Ash

Aaaargh! Sorry, this question was just answered by HS30-H in another post (earlier this week). The S20, as I understand it, is a 2.0 litre six, predominantly a Japanese home market issue only. I remember reading about the Jap Govt's very prohibitive tax regime on cars with over 2.0 litre capacities. As with most short sighted policies, this spawned the ineviteable evolution of high performance engines in the upto 2.0 class...hence the 432 series (?Alan?).

My Vote:

Fairlady Z 432 ®.

The engine is an S20.

Some harder trivia please.

Mr C

Steve,

That one was too easy for them!.............

As its equipped with the full aircleaner assembly its NOT a 432R ( PS30-SB ) which came from the factory without.

This kind of challenge might be fun. I think I will have a scope and see if I can post up a really hard challenge for identification.

HALZ, you are right; the Japanese government was ( and still is ) trying to keep a lid on engine sizing by taxing different capacities different amounts. To go over 2 litres was very costly for the man in the street, so the car manufacturers kept domestic market stuff smaller. Mind you, the Japanese road network in the late Sixties and early Seventies was still very basic - so there were not many places to use anything more powerful.........

Ash, the S20 is not a DIRECT ancestor of the SR20 ( although the appellation sounds almost the same ) - but you COULD think of it as part of the family tree. The S20 was ( and still is ) a legend in Japanese motoring history, and won many races in the Skyline. Actually, when Nissan launched the Z432 in October 1969 they described the car as a "Fairlady Z with a Skyline GT-R engine". The GT-R had the engine for more than a year before the Z432.

Cuong, strictly speaking the carburettors are actually "MIKUNI" ( who licensed the basic design from SOLEX, but made their own design improvements ). They used both the SOLEX and MIKUNI names together on the carburettor bodies.

The S20 was a very complex engine for the late Sixties, and was most certainly NOT based on any other production block ( sometimes people say it was based on the L20 block, which is not so ). It even had cross-bolted mains and a "girdle" that fitted over the crank to strengthen the block. Basically it was a race engine that was detuned and softened for road use.

Keep 'em coming Steve!

Alan T.

Must have been an easy one if I got it right.:cross-eye