kats

Thanks Chris , I like it too . Here is a quiz , Who said “ let’s shave the meat here “ of the early seat back ? #1 Mr . K #2 Interior designers #3 Kaku - U member (test crew of 240Z in US and Canada in late 1969 ) Mr . Sudo always says “ the seat which I make is not original, but I try to make it look original. Also I add pads and change tension of springs etc etc , these work will definitely give more comfortabl hold for a driver / a passenger. I think the modification of a later slim type to transform to an early fat type was a challenging task , this had never done before for Mr . Sudo . Pleas see attached pictures, the shape is different, and now I feel very natural that my 03/70 240Z has a pair of an early type seats . I have bought a beige rubber band for the seat bottom, but this time I didn’t intend to supply it because Mr. Sudo ‘s band is very attractive for me . I will not take my blue 240Z for The judged car show anymore , and I think I can make it original look using the rubber band anytime . Kats

Hi Gavin , I have no problem giving it to you , but I am wondering the color would match your interior or not . The biggest problem is , either my old blue vinyl or remaining vinyl are not enough for your pair of seats . Kats

@nix240z , thanks Steve , the blue seats now got your seat bottom bolster, looks Fantastic and installed just like an original !! The picture which shows the blue interior used for measurements is excerpt from the video of Nissan motor company. My blue is a little bit greenish , the color was arranged to achieve matching other aged interior trims . Kats

Hi , I have picked up my car , and the seats were beautifully done , I am so happy with it . Mr. Sudo made them look early type , fat seat back . And also he put his hand work for my 240ZG’ s seat bottom . Only RHD bottom have it’s center portion replaced . I can’t tell which one replaced viewing from a few feet away. Kats

Thanks Mike , nice owner’s manual for Fairlady Z series! Kats

Thanks Alan , that is what I too would like to introduce everyone outside Japan , and even more , I want to emphasize this , the first Japanese market S30 reclining seats (10/69 to 01/71 ) don’t flip forward . So there is a difference in the seat reclining mechanism cover . The earlier one has a wide tab , on the other hand , the later one has a narrow tab . This difference comes from the travel amount of the seat back supports . Thanks Blue , the seats is swapped from the other one , this is what I need to do for my restored seats , because I don’t want to make them old ! Kats

Thank you everyone , I appreciate those valuable inputs. Kats, It looks like the numbers shown in the table are correct. Not sure why the numbering was different on the early RH seats. Mike , as I am looking at the numbers you showed here , I was wrong about my correction for the part numbers of the RHD seats . Now I have a big question, “ what is different between them ? “ If “ COMP SEAT “ means the seat includes the seat rails , and plastic spacers and plastic nuts , those things would make the difference between JDM and Export models. But I don’t think that happens... By the way, my 03/ 1970 HLS30 , I realized the RHD seat doesn’t slide fully backwards , is this for Export LHD models ? Or just the seat rails doesn’t work properly? My Z432 and 240ZG have a RHD seat which can be adjusted with a sliding mechanism fully backwards, of course. Kats

Hi 240dkw , the rubber mat material is different from the brown one which can be seen in Mr . Sudo’s factory. Kats

I amended, I am glad not for me , for this thread made by everyone here ! Kats

Thanks Mike , it is a great help . Don’t you think the parts number is something wrong , do you ? Please see my corrections. Anyway , the number E4103 is for the “ brown “ seats , and this doesn’t mean either the one which is kept by Mr. Sudo or the one can be seen in the test car . We actually have the tan seats as “ brown “ E4103 , don’t we ? Jason240z , I am so glad that you said that to me ! Kats

Thanks Blue and 240dkw , Yes the car definitely was the test vehicle ( without chassis number ) carried a lot of recording machine for data collection. And you see the brown interior trims which was never applied to the production model . I think the Naugahyde which Mr. Sudo has could match that brown interior. Nissan actually planned “ brown “ trims for Fairlady Z series in Japan from the beginning of its production , but none of cars has that brown trims , there might be some reason that the brown trims were never applied. Only parts numbers for the brown seats are still listed in the Fairlady Z series parts catalog. This is one of the ridiculous thing in the catalog for everyone ! But not only planned, Nissan ( or Ikeda Bussan : seats company ) actually placed an order for the brown one to a Naugahyde manufacuturer for the production . To assist this story , Mr . Sudo has an interesting experience with the brown Naugahyde . One day he finally nailed down the exact Naugahyde which is used for the S30 seats , then he placed an order for the manufacturer with telling them that “ I am going to use it for S30 seats “ . What he has got is , that brown Naugahyde first , then black one later . Those two both have exactly the same textures on it . That is why I think the brown Naugahyde which Mr. Sudo has is special , it was planned once but been never applied . Kats PS : Can someone list the parts number for the Export S30’ seats “brown “ ? I am away from my home , I just want to compare the two of them. Here is the Fairlady Z seats parts numbers from 10/69 to 03/72 .

Thanks Mark Maras , Chris , and Alan .You all are correct yes , I think so too. What I wanted to say is, look at this please . Excerpt from a movie by Nissan . Kats

Blue, I did it before ? OK . And the silver car has a chrome Z quater emblem , and does not have a dove tail at the door , I see some super early cars do not have the dove tail , this can be a clue for determing the chassis number . Chris, I think I have visited the ball room in Christmas 2006. I just wanted to feel atomosphere and imagine an excitement when the 240Z was on the display . Yes , it was small than I expected. Kats

Hi , I couldn’t stop myself posting this, here is a quiz , what kind of material is this ? And what is it for ? Mr. Sudo has this , it is unbelievable. Kats

Hi Blue , did I post this before ? Kats

This is very fun to read , we can gather information what we have got so far and we will see some interesting facts . When I am home on Sunday, I will check the LA auto show held in late 1969 had a silver 240Z , with C pillar emblems , without D emblem on hub caps . I guess the car could be different from the two test cars in the North America during Oct to Dec 1969 . Kats

Thanks Blue !

Thanks Alan , Blue. Last week I took my blue 240Z for a drive to Tokyo , to have its seats refreshed by the craftsman Mr. Sudo . As I told it here before , the blue seats were restored by him in 2003 . This time I want the seats look just like new again with replacing worn out pieces . Mr. Sudo is going to replace vinyl pices only where worn out , this is my request . He gave me the extra vinyl when he did the blue seats , but the vinyl is not enough for making a set of whole seats . Also I don’t think they need to be replaced whole thing as they are almost perfect in most of part . The seats were finished in later “ slim seat back “ style , I have been dreaming about having early “ fat seat back “ style in this blue vinyl. This time Mr. Sudo is modifying them to fat seat back style using minimal amount of the vinyl, I am really excited about it , I can’t wait to see it when he completes the re-upholstery. Here are some pictures in progress. I will be able to show you the seats done in the end of this April. Kats

Thanks Blue , nice findings. I might be curious if the car used in the service manual would be HLS30-00013 . A lot earlier car could be used for the manual , couldn’t it be ? Kats

Hi Gavin , the motor was bought by a used car shop which is located near my house . I visited and saw a mechanic was trying to install the engine into a Fairlady Z (L20 model ) . Kats

This is what I saw on Yahoo auction some years ago , this engine is definitely pulled out from the car , PS30-00061. It is mounted on the big frame as if it was displayed in a museum . This was cheaper than that of current prices . Kats

Already 2 200 000 JPY ! No way , I am out . I now realized its engine and transmission, and R192 diff as a set were the ones which pulled and sold on Yahoo some years ago , they were very good condition. I wondered where was the body , but here it is ! Kats

Hi , a 1969 PS30-00061 is now on sale at here , https://page.auctions.yahoo.co.jp/jp/auction/w303997991 No engine , no transmission, but a registered paper comes with this car . If the price stayed lower , I would have thought to bid . 880000 JPY currently and not meeting a reserve . Kats

Alan , thanks for telling me the point , the compression ratio is the matter . I think the spare head will definitely need to be shaved 0.5 or 1.0 mm , as I don’t want the head to have any things that make it higher compression ratio , I need to think about a thicker head gasket ? Or enlarged combustion chamber ? The Z432-R racing manual is saying “ the compression ratio will be 10.1 to 10.3 when using a racing pistons. You will have little more extra power if you make the compression ratio exceeding 11.0 . However , with regarding fuel , 100 octane currently used , it is safe for the engine keeping the ratio within 11.5 “ BTW , STD piston’s ratio is 9.5 with a STD 1.2 mm head gasket. And , I am worried about the valves may hit the high intrusion crown pistons . And I have read about an article which says titanium is expanding when heated , so does the conn rod have to have bigger gap for the bearings as well as bushing on top ? Kats

I am waiting for getting a set of racing cam “8L “ and adjustable cam sprockets which were also used in racing cars from my friend . I won’t be able to come by titanium valves , special springs etc , so looks like I am done , I am satisfied at this moment. I just hope my spare engine project going well , I don’t race , I will be happy if the engine is just running. I set the goal , build the spare S20 engine like someone who race but not enough money to buy complete set of racing parts . I will tell you later my feelings when I run the engine. Partial racing parts installed ! Kats