Open Discussions
Open discussions about the early S30 series issues and topics.
8,751 topics in this forum
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- 7 followers
- 45 replies
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Hi, For someone who is interested in aerodynamics of our S30 cars, here is a thesis made by Nissan engineers in May 21st 1971. Aerodynamic Study on Passenger Car Body Configurations / Michio TAKEI, Hikota SAKAMOTO, Kazuhiko YOSHIYUKI. The effects of G-nose and spoilers are quite noticeable, 7 pages of this thesis is worth to read. I'm not an engineer so some of the numerical formulas are unable to understand but the figures and illustrates work easy for me. So, I tried to show one of their data. Those numbers in pictures are excerption from the thesis. The only thing which I am not for sure is the data of Clr for the rear spoiler only configurati…
Last reply by SpeedRoo, -
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- 4 followers
- 15 replies
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Is there any new or upgraded EFI systems that wont break the bank? I have heard of speedunio but there is little information on it really. the zcardepot one is almost 2k and the protunerz is 1.5k and I dont really want to spend that much. Sent from my iPhone using Tapatalk
Last reply by dylancorrea1, -
- 2 followers
- 4 replies
- 298 views
Hi, I’ve had serval posts on my 1978 280z, I got really busy with school and work so I stopped working on the car. I had it sorta running about 8 months ago, till the hood latch pully broke and I just parked it and never got to it. I really want to get it going to at least drive on a weekend or so. I got a better job recently and want to throw in some money to get it running smoother. Does anyone know where I can start? On rebuilding, upgrading or replacing? Sent from my iPhone using Tapatalk
Last reply by dylancorrea1, -
- 2 followers
- 3 replies
- 298 views
I thought I remembered a map with "stick pins" with member locations? I'm a snowbird and spend winters in the St George, Utah area. This year I've seen a very nice black Z with the tail light panel painted silver, no bumpers and it has a V8. I stopped the guy once but didn't get his name, he said he had to get on the move before he over heated. Since I've seen the car a couple of times weeks apart from each other I'm guessing the car is local to the St George, UT area. I'd like to see that map and see if I can find this person.
Last reply by Patcon, -
- 2 followers
- 3 replies
- 219 views
I talked to ST suspension and was told sway bars made for stock 240Z's with L24 drivetrain might not be compatible with my car. Is this true? If so what would be compatible with my car?
Last reply by dutchzcarguy, -
- 2 followers
- 1 reply
- 313 views
Didn’t get any traction with this post in the suspension section. Here goes… Im looking to lower my 72 Z, but not looking to go with coil overs. As far as I can tell, the most common options are: 1. Eibach (not low enough for me and squatting issues) 2. Vogtland (similar to Eibach) 3. MSA performance linear springs. 4. Cutting OE springs (not my first choice, but a choice to get just the right height) My guess is that the MSA springs are the most agresssive drop you can get from an off the shelf spring. Any opinions on this? Anyone with the MSA springs that can chime in with pics/experiences? Here is a link: https://www.thezstore.com/product/4681/new-motorspo…
Last reply by foosman, -
- 7 followers
- 19 replies
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Need some advice on door locking mechanism. I have the interiors side of door handles operating fine. I also have the outside chrome handles in and working. What i cant seem to understand is 1. how i get the outside door lock attached.I have an image with the really white clip for the outside door lock. does one of the rods slide into this and the opposite side of the door handle? FOr some reason thats what i am thinking but if so not sure the right rod. 2. The inside door lock, stopper whatever its called is frozen. I know it works as it once was, its just not hooked up right. anyone have any reference material, images, info. I have rods not currentl…
Last reply by dutchzcarguy, -
- 5 followers
- 8 replies
- 565 views
Just saw this. Maybe I’m late to the game here but this is the first I’ve seen in High Zinc additive. https://www.amazon.com/Castrol-Classic-20W-50-Conventional-Motor/dp/B09QXWLY2Y/ref=pd_rhf_d_cr_s_bmx_gp_la4mehqn_sccl_1_3/139-8531450-3914603?pd_rd_w=kiQ7z&content-id=amzn1.sym.9a6f1177-7e55-462d-bd77-cfaee186750a&pf_rd_p=9a6f1177-7e55-462d-bd77-cfaee186750a&pf_rd_r=XNJ1S7EH8MEJY42D1DAN&pd_rd_wg=0ExCb&pd_rd_r=7f457931-43eb-49a8-9f77-ee3270dc1cf9&pd_rd_i=B09QXWLY2Y&psc=1
Last reply by bartsscooterservice, -
- 1 follower
- 1 reply
- 220 views
oil consumption issue seems to be fixed. I switched to 10/30 VR1 since my oil seemed to be all ways stuck at about 60psi indicated (like it was in bypass all the time) Since going to the lighter oil it looks more normal (maxed at 60psi cold, but will vary with the RPM when warmed up. I had been running 20/50 and or 15/40 with the old oil burner. checked compression warm, all about 185 (throttle closed). This is with dished pistons and the head off a 84 maxima. I would have an occasional miss, I think it was injector harness related, I replaced all the plugs at the injectors, seems to have fixed the intermittent miss. The old ones were pretty beat up, and I notic…
Last reply by Dave WM, -
- 1 follower
- 2 replies
- 363 views
If you live near Louisville, KY and are in the market for a z car this might be your chance to get a good deal. I must sale my 76 280z 2+2 immediately. Let me know if you are interested and we can discuss. thanks. IMG_1235.MOV IMG_1235.MOV IMG_1235.MOV IMG_1235.MOV
Last reply by bhermes, -
- 6 followers
- 28 replies
- 1.2k views
Anyone come up with a halfway elegant solution to separate the fuel rail from getting the transfer of heat from where it's bolted into the engine block? (5 places) I have a 1973 240z that has the Paltech refurbished SU carbs (not the stock flat tops) and when I take it on a 5 or 10 minute drive the fuel rail is hot to touch. Not burn my fingers hot but definitely uncomfortable. Am curious if anyone has built aluminum "stilts" or used the same kind of material that is used as a heat block between the carbs and intake manifold. (See where my finger points in the pic)
Last reply by Jeff G 78, -
- 2 followers
- 2 replies
- 281 views
Going through my parts stash this afternoon I noticed I have intake manifolds with four different casting numbers, E46, E88, N33, and N36. Seems like I've also seen one in the past with an N37 casting number. This raised a few questions: Are there other casting numbers out there for 240 and 260 carbureted Z cars? Which casting numbers went with which years? Are there any differences between them in terms of flow characteristics? Seems like I've seen some discussion on here in the past with regard to the last question but I can find it with the search function. I'd be interested in answers to all three questions. Thanks guys.
Last reply by Randalla,
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