Thank you everyone ! I am so happy that we can talk about this deeply .
4 speed vs 5 speed , I think this is slightly related to the topic which we always love to discuss
“ S30 series was made for USA or not ? “
This is my thoughts at the moment,
The S30 series oriented in Japan , was made for the WORLD .
Its biggest market was USA .
Probably this was the same for people in Nissan company at that time. However each person who was involved had each idea in his mind I think .
Mr. Suitsu who was a chassis design manager of S 30 , he said in an interview
“ we aimed USA as the biggest market of this car , we always kept that in mind “
For the US , he said “ there are many troubles about Porche synchro , people in the US mistake their shift , two way action ( put , then push with squeeze) makes a driver feel completed shifting , but it really has not completed . This makes a transmission worn out easily “
“ So we quit Porche synchro in the US “
I see why 5 speed was not available for USA and Canada until August 1976 , Nissan did not have “Warner “ 5 speed until that day .
FS5W71B is a Warner synchro, after its debut , USA and Canada received 5 speed without fear of Nissan .
Mr. Takei and Mr. Miyazaki dedicated developing Europe model in 1970 to 1971 ,
They were in a “ vehicles test department “ that they always felt Z car needs to be more sportier for the customers in Europe.
5 speed was no doubt for them .
Mr. Uemura was an engineer and he had got to be involved S30 project in April 1967 and was told “ this car is mainly exported to the US “ He and everyone wanted to make a car which can be sold well in the US , he started work for chassis design . In his mind there was always people in the US .
Also he was the crew of test drive in the US and Canada late 1969 . After the test he was convinced that 4 speed with 3.364 was proper for the US and Canada .
He said about 4 speed and 5 speed ,
5 speed is must in Japan because the car is not for the ordinary people in Japan ( engineers had heard of sports car was popular even for young ladies in the US , big difference! )
So , did not want to lose against TOYOTA 2000 GT or Mazda Cosmo etc , Nissan must have 5 speed for their sports car in Japan even someone doesn’t like the feeling of the Porche type synchronized gear shift .
Sales department worried about the feeling of Porche synchro , Mr. Uemura too, but finally he insisted to fit 5 speed into S30 .
Mr. Matsuo was passionate about to shock the WORLD with Z car .
( Mr. Yoshida and Mr. Tamura were too , the design team had been learning from and taking admire to many great sports cars around the WORLD , naturally they wanted to compete with those cars )
But at the same time every designer who I met said “ I wanted to be successful in designing sports car in the biggest market, USA . Winning in the US meant winning in the WORLD “ .
And , the team had started it well before they met Mr. K !!
After they met Mr. K , they put many US related things into the S30 . Like enlarging the height of the roof , widening the with of engine room for V8 , prepared for a big US made automatic transmission with a wide center tunnel .
Also went to 6 cylinder engine from its original concept 4 cylinder engine,
Those are all essential and very important things of S30 , those are can not be removed or replaced other things to suite for the each designated Export model .
So S30 did not have much consideration for the US at the beginning of design study but later when it had went on real project, it was influenced by USA in terms of basic of car structure.
BTW , for the body styling designers , 4 speed or 5 speed might not be the matter .
Mr.K always said “ Z car , we made this car for you , USA “ . And he said “ selling car in the US , a single model is the best .
Of course we offer optional parts for the customers who really want to add something special “
Mr. K , he thought 4 speed / 3.364 with a single model was suitable for the US and Canada as he had been seeing people enjoying SP SR .
But I think the big difference between SP SR and S30 is , sales volume .
I understand making small quantity with many variations is not good for a company , but for S30 , Nissan could still sell good numbers of 5 speed from the factory without ruining their profit even there was an issue of “ Porsche synchro shifting trouble “ .
If I was able to ask Mr.K now , I would ask 5 speed for the US and Canada , and Mr.K would say yes ... Seems only Mr.K knew a huge success of S30 before its debut while other executives and engineers were wondering S30 ‘s potential of sale .
Mr. Kawamata , former President of Nissan always said “ sports car does not make profit , it is just like an advertisement “
He would have never imagined selling a sports car in the US to make people happy , and make Nissan happy until he saw a S30 prototype.
Kats
And I always thank you everyone, you are all patient for my writing !