Geoffs' (4ways) RIP 240Z

Albrecht

Well-Known Forum User
What is a Nismo inlet manifold - never seen one ?

Are you just being arch, or do you really not know?

Nissan sold triple carburettor kits for these cars through their Sports Option parts lists. The inlet manifolds were made to Nissan's specs and by their own in-house casting companies. They were nicknamed 'Nissan Sports' because that was the name of the branch of the company selling them, and when Nissan Sports was renamed NISMO in 1984 they started to be called 'NISMO' manifolds. In the United States they were known as 'Datsun Competition/Nissan Competition', for obvious reasons.

The inlet manifold on the green car is actually an early Sanyo Kiki item, which I sold to Geoff myself. It's not a NISMO manifold.

71-11 HS30 Sports Option list-p3.jpg
 

Rob Gaskin

Treasurer
Staff member
Site Administrator
I like that inlet manifold but as often happens things are described inaccurately - just through ignorance often.

Being picky - or showing my ignorance, should this car have the centre console with two levers?

Anyway I reckon this is a decent car.
 

SeanDezart

Well-Known Forum User
Are you just being arch, or do you really not know?

Nissan sold triple carburettor kits for these cars through their Sports Option parts lists. The inlet manifolds were made to Nissan's specs and by their own in-house casting companies. They were nicknamed 'Nissan Sports' because that was the name of the branch of the company selling them, and when Nissan Sports was renamed NISMO in 1984 they started to be called 'NISMO' manifolds. In the United States they were known as 'Datsun Competition/Nissan Competition', for obvious reasons.

The inlet manifold on the green car is actually an early Sanyo Kiki item, which I sold to Geoff myself. It's not a NISMO manifold.

You have repeatedly pulled up web-site browsers and instructed them that nothing is 'NISMO' before 1984 as the entity didn't exist before then. So, I see a known car from a reputable Z specialist beging described as having one - I'm curious.

Yes, I have a copy of that catalogue, kindly scanned and supplied by yourself before I was given one a lot later. But the inlet manifold in the catalogue you've shared isn't that on this car. Btw, what exhaust manifold does it have please ?

Anyway, thanks - you've answered the question and not surprising that I haven't seen one - they don't exist....or do they ?

It's not a NISMO manifold.

So, by inference, there ARE NISMO manifolds but this isn't one of them ? From 1984 onwards, did NISMO sell Nissan spec S30 manifolds ?

Being really picky Rob, there're probably a lot of things 'wrong' with it but does anyone really care - does Alan ?
 
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uk66fastback

Club Member
I quite like the colour, but would have to have the rear panel the correct non-body ‘charcoal’ ... plus the number plate light .... you can have too much of a good thing.
 

Rob Gaskin

Treasurer
Staff member
Site Administrator
I think one reason for cross-braces on roll-cages is for harness attachment.
 

SeanDezart

Well-Known Forum User
I quite like the colour, but would have to have the rear panel the correct non-body ‘charcoal’ ... plus the number plate light .... you can have too much of a good thing.

Yep, one of my picky things although I couldn't live with the colour - I always feel metallic paints somehow look better on the later cars - I don't know why though....
 

Albrecht

Well-Known Forum User
You have repeatedly pulled up web-site browsers and instructed them that nothing is 'NISMO' before 1984 as the entity didn't exist before then. So, I see a known car from a reputable Z specialist beging described as having one - I'm curious.

Yes I'm usually paying attention to detail, or trying to. You seem to miss the point more often than not. An inlet manifold could be described as NISMO if it was sold by NISMO (hence being 1984-up in date) and as Nissan Sports/Datsun Comp etc if before 1984, but if I'm being picky about that it's because we are often concerned with dating the object concerned. When it came to parts for the S30-series Z, NISMO carried many of the very same parts that had been developed and sold by Nissan Sports/Datsun Comp. Two aspects of the same discussion.

Yes, I have a copy of that catalogue, kindly scanned and supplied by yourself before I was given one a lot later. But the inlet manifold in the catalogue you've shared isn't that on this car.

And here's my Sisyphean moment. As I've pointed out, the inlet manifold has been mis-described. It is not a NISMO/Nissan Sports/Datsun Comp. item. It is an early Sanyo Kiki.

See that one in the Sports Option list scan? That's a Nissan Sports/'Sports Option'/Datsun Comp. inlet manifold. The very same design was sold by NISMO after 1984...

Anyway, thanks - you've answered the question and not surprising that I haven't seen one - they don't exist....or do they ?

Jesus wept. But not for me, clearly. Maybe I should just quote myself, but louder...?

Albrecht said:
See that one in the Sports Option list scan? That's a Nissan Sports/'Sports Option'/Datsun Comp. inlet manifold. The very same design was sold by NISMO after 1984...

So, by inference, there ARE NISMO manifolds but this isn't one of them ? From 1984 onwards, did NISMO sell Nissan spec S30 manifolds ?

:banghead:
 
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SeanDezart

Well-Known Forum User
Thankyou now for the nearly complete answer.:p

I understood that the 'Datsun Competition/Nissan Competition' parts sold in the USA have all since been ubiquitously named 'NISMO'.

And what exhaust manifold does that 4ways car have fitted...pretty please last question of the day ?:jester:
 

Albrecht

Well-Known Forum User
And what exhaust manifold does that 4ways car have fitted...pretty please last question of the day ?:jester:

I honestly don't know. Geoff used to buy a lot of exhaust manifolds from Nissan Comp in the USA - the chromed 'NISMO' type - but I did source a few Kameari exhaust manifolds for him too. One may have ended up on this car.

I can't see what's on the car now.
 

SeanDezart

Well-Known Forum User
It's not one of their own fabrications, inspired by those obtained in the US : https://datsun240z.co.uk/wp-content/uploads/2014/11/manifold.jpg

Could be maybe a Fujitsubo-style 6-2 with a flange....

"a Safety Devices half roll-cage, up-rated anti-roll bars and a rear strut brace" I still don't get why fit a strut bar at the rear when the roll-cage is providing rigidity and leave off the important one at the front, oh well....
 

Loagz

Forum User
Why is it possible to buy rollcages with horizontal bars linking the strut towers, and rollcages without?

Basically comes down a combination of one, some or all of these factors.
1. What your intentions are with the car, (an actual requirement or just style points.)
2. Conforming to required tech rules for a certain competition series or legality for public road use
3. Cost of cage construction
4. Weight of cage construction

This design is more accurately described as a 'Safety Roll-Bar' where a 'Safety Cage' note, no longer called 'Roll Cage' extends foward of the drivers seating position. A safety roll bar consists of a a) main hoop b) two backstays c) one diagonal and d) one harness bar. Pre 2013 d) was not mandatory required.

As of 1 January 2013 Motorsport New Zealand (my haunt and for that matter most other countries) has made it mandatory to include a 'harness bar' in all safety roll bar construction. The roll bar must be a stand alone item, but by placing the bars anchorage points on the suspension towers and placing the harness bar close to this it becomes a sort of de-facto strut brace as long as the harness belt angle is correct.

Could of been a case of a basic bare minimum safety roll-bar without a harness bar was fitted to meet a regulatory requirement and the strut brace was not considered or was an afterthought
 
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Loagz

Forum User
I think one reason for cross-braces on roll-cages is for harness attachment.

Sure is, the transverse bar joining either the two backstays or the two vertical hoop legs on a safety roll-cage or safety roll-bar is called the harness bar and its primary purpose is for providing an anchor point for a safety harness and ensuring the harness straps are oriented on the correct angle (20deg divergent or convergent from seat centre line and 45deg max downward from 0deg horizontal at upper harness holes for non HANS and 20deg max for HANS equipped drivers
 
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