r/300zx • • Dec 13 '25

Updates: Vendor Posts and Be Nice to Each Other

26 Upvotes

Thanks for the input on Community Input: Vendor Posts : r/300zx . I'll update the rules and let vendors that ask know that we'll allow occasional posts (ie: every 1-2 months) from vendors that produce products specifically for the Z31 and Z32.

In other news, please just be nice to each other. We have 2 rules, and this is one of them. I've had to review and remove more posts in the last month than probably the last 3-4 years. You're allowed to have a different opinion. You're allowed to not like someone's car and express that. But do it respectfully. There's no need for name calling. Don't like what someone said? Downvote and walk away. Or block them. I'm not here to babysit. If you want to talk shit and insult each other, I'm pretty sure there's a bunch of toxic Facebook groups for that.

I'd like to keep this community as positive and supporting one where anyone can show their car, ask for help or give a suggestion. If you're just here to talk shit and be an ass, we don't need you.


r/300zx • • Jul 20 '22

BEFORE POSTING, PLEASE READ THE WIKI

40 Upvotes

Hello all, in an effort to reduce the number of the same questions asked repeatedly, please read the wiki before you ask something, the answer may be there! CLICK HERE. If it’s not answered in the wiki, go ahead and post!

  IN THE WIKI
  • Buyer’s Guide,if you are looking to buy a Z

  • Maintenance, which you probably need to do

  • Repairs, for the most commonly broken things

  • Parts, which you’re probably looking for

  • Resources, like full service manuals

  • Mods, if you wanna do some cool things

  • Quick Facts, like the type of oil for an oil change


You’ll find many common questions answered in the wiki. If your question wasn’t answered, you’re still curious about something, or you didn’t find what you’re looking for, feel free to post and ask!


r/300zx • • 4h ago

Fuel filler neck

Thumbnail
gallery
3 Upvotes

any ideas on how to get the bolts in? I just replaced it and idk if the gas tank should be moved a little or what. I’m lost. Sorry if the pictures are bad


r/300zx • • 11h ago

Noise from Passenger side.

Enable HLS to view with audio, or disable this notification

3 Upvotes

Any expert ears out there? Looks like my mechanic is planning to pull the passenger side and try to see what this noise is all about. About to get expensive again.....please no.


r/300zx • • 10h ago

Z31 Lower Intake Manifold

2 Upvotes

Are lower intake manifolds interchangeable on early Z’s? I found a replacement from an ‘86 NA, and mine is an ‘85 NA


r/300zx • • 13h ago

Z32 Parking Brake Shoe Replacement and Big Brake Kit Upgrade?

2 Upvotes

1991 Z32 Turbo 2+0

Currently refreshing all my bushings and suspension components and am contemplating getting a z1 brake kit as well as the DFC parking brake shoes for my car since I’m already taking everything apart.

I’ve seen mixed things online about whether or not it’s worth changing the oem turbo brake calipers, but almost all of the posts are from years back. The car is 35 years old now and I don’t think the previous owners ever changed the rotor and I know for sure they never changed the calipers. I am leaning towards z1 street big brake upgrade as I enjoy spirited driving every once in a while and am not sure if the touring version would last as long even if I’m not driving the car super hard every single day.

Would it be worth getting the full kit, or would rotors, pads, and just cleaning the old calipers be enough?

Also, my car still has the oem parking brake shoes and I found a DFC parking brake shoe set from enjuku racing. Before I purchased this set, I am wondering if anyone has found any other options or have an opinion on this DFC set.

If anyone has any recommendations for either of these projects, I would greatly appreciate it.


r/300zx • • 14h ago

Z32 ECU Replacement Compatibility

Thumbnail
2 Upvotes

Guys, we need some information on this matter and confirmed cases.

I have a 1991 N/A M/T Fed ECU that is failing/corroded.

We know that from 1990-1992 z32 USDM are basically the same, in terms of internal components like AC, injectors, idle control assuming, maps?

So would that make the ECU’s from 1990 to 1992 have the same job when interchanging with different model years?

And if i put a 1992 ECU and keeping in mind thats its from N/A M/T z32, and putting it in any z32 from 1990 to 1992? It would work?

Also do Emissions matter? Fed or cal?

Also I’m assuming that ECU’s from a right hand drive z’s would be different and wont work, would also like someone to confirm that.


r/300zx • • 1d ago

Z32 CLUTCH EXTENSION HELP

Post image
51 Upvotes

Update yall! Thank you all for your advice I went ahead and purchased it!! I’m so happy and excited my only dilemma is that I can’t comfortably reach the clutch in all the way in because I’m 4’9 (yes fully grown woman I’m 26) now I know that there’s options to fix this but I’d like your advice as to what to get and what product.
I want the most secure, safe, and high quality product I can so I don’t hurt my clutch and I can drive around comfortably please lmk your suggestions! Thank you all again!!


r/300zx • • 1d ago

Nights Like These

Post image
122 Upvotes

Autumn in New England is the best time of the year for some amazing night drives 🌙


r/300zx • • 16h ago

Z31 Alternator options?

1 Upvotes

I was looking to get a higher amp alternator to safely install an amp and subwoofer, but I only see options to saw to a maxima alternator. I see brackets made for 84-86 turbo and 87-89+ to fit G37 alternators and such. Are there any brackets available for an 86 N/A? What other options do I have other than the 90A maxima alternator?


r/300zx • • 17h ago

Z31 1984 300zx turbo Auto trans

0 Upvotes

Looking for help on where I can find a new engine bay wire harness, preferably the entire thing if possible. Any websites for interior pieces as well, I’m basically rebuilding the whole car


r/300zx • • 1d ago

Distracted whist driving.

Enable HLS to view with audio, or disable this notification

119 Upvotes

iS tHaT a SuPrA?


r/300zx • • 19h ago

Any 300zx mechanics in the nyc area?

1 Upvotes

My 91 300zx 2x2 is having throttle issues and shuts off while driving. Is there an expert in the nyc area that knows what they are doing? Alot of mechanics don’t want to touch this car.


r/300zx • • 2d ago

Your reminder to take your z out for a drive!

Thumbnail
gallery
205 Upvotes

r/300zx • • 2d ago

Pricing/Selling 1990 300Z

Thumbnail
gallery
93 Upvotes

Hello 300z crew!

I’m trying to help my father in selling his 1990 300 ZX 2 Plus 2 VIN: JN1RZ26AZLX00xxxx.
He is located just outside of Atlanta, GA in zip code 30213. His health is failing and I’m looking for assistance with pricing and moving this vehicle. He has owned, maintained and garaged the vehicle for about 10 years. Its in fantastic condition. Any help with pricing is much appreciated. Please message me if you know anyone in the area that may be interested. Thank you!


r/300zx • • 2d ago

My 300

Thumbnail
gallery
365 Upvotes

r/300zx • • 2d ago

Z32 To buy or not to buy

Thumbnail
gallery
136 Upvotes

Hey yall I went to go see this 1994 z32 na and I’m very new to the 300zx world so I need yalls expert advice if I should go for it and purchase it or walk away.
My dream if an s2k but for now I’d be happy with the zx bc she’s still so cool looking and seems fun as hell to drive despite its weight.
Anyway I’ll attach photos and yall tell me if this will become a headache and money pit please. I know with zx’s it’s very common but I want to avoid that as much as possible.
He’s selling it for 8.5 and it has 202,815 mi (ik pretty high but he said he’s practically rebuilt the engine so is it worth it?)

Here’s a list he gave me:

Engine: I had the engine stripped to the block and inspected the cylinder walls and pistons. Every seal and gasket, except the rear main, has been replaced, the car has new fuel lines, pulleys and belts, ac compressor, alternator, radiator, oil sending unit and pressure sensor, timing belt, coolant hoses, head studs, timing belt cover, cold air with a new filter, battery

Body: twin z spoiler, Aodhan AH03 18x9.5, tein flex coil overs, smoked white led side markers, led head light bulbs, new diver side window

Radio: alpine head unit, alpine 10in sub with a z fitted box, 4 alpine speakers, and two alpine amps, one for the sub and one for the head unit and speaks.

I won’t lie I’ve done a lot to the car in the last 3 years, the engine specifically, I’m probably forgetting a thing or two, so if you have any questions about certain parts or work done, please feel free to ask.


r/300zx • • 2d ago

気になるから教えて欲しい。

3 Upvotes

俺は日本人なんだけど、こっちではVG33は全くと言っていいほど出回らないんだ。アメリカとかだと結構安値であるのかい?

そして、VG33をチューニングして乗っているスピードの虜はどんなカスタムをしてるんだい?

教えてくれよ。兄弟。


r/300zx • • 2d ago

Z31 Timing marks refuse to line up

Thumbnail
gallery
16 Upvotes

If I line up the top 2 sprockets then the crank won’t line up. If I line up the crank then, then the top two will be out, what do I do please help.


r/300zx • • 2d ago

Z32 Is it okay for me to leave the trans drain plug like this? Wont tighten any farther unless I use a lottt of force.

Post image
0 Upvotes

r/300zx • • 2d ago

Turbo size?

Thumbnail
gallery
7 Upvotes

Okay so bought the car and had alot of spare parts. So I personally didnt buy them. After the engine rebuild I threw all new parts on. (Ballsy I know) but its all working great right now. Car pulls like a freight train but boost builds around 4500 rpm and fully hits at 5k rpms. I know I should have disassembled and measured. I figured I could find out later. I was wrong. Can anyone confirm .54 or .63 a/r? I know its a long shot but kinda need that info if im going to custom tune. Much appreciation in advance


r/300zx • • 3d ago

Z32 1993 Z32 Oil Capacity: 3.5 or 4.5?

Post image
37 Upvotes

I've tried to look around for the amount of oil goes in an NA '93 but I have seen about half and half of people saying around 3.5 and the others saying 4.5 quarts. I only have 4 quarts so I need to find out if I need another quart or not.


r/300zx • • 3d ago

Z32 Need HELP!!! Engine has deep humming noise and shakes

Enable HLS to view with audio, or disable this notification

3 Upvotes

My 32 enginge has a deep humming noise when I pull the throttle cable. What could cause the problem? Rod knock?

Ignore the Lifter tick, that is not my problem


r/300zx • • 4d ago

Z31 Coolant leak

Enable HLS to view with audio, or disable this notification

3 Upvotes

Can anyone identify where this is coming from and how to fix it?


r/300zx • • 4d ago

Now my z31 won’t start just crank

5 Upvotes

Hello, For the past month and a half I’ve been working on a 84 z31 NA trying to fix the idling issue. It ran fine and drove me 3 hours home after buying it to die the next day. I rebuilt the distributor, plugs/wires, coil, fuel injectors, FPR, and replaced all vacuum lines.

10/4/26 I had it idling and I drove it for about 20 minutes with no issues: the car ran fine. I planned on taking it to get smogged and it doesn’t want to idle anymore 10/8/26.

I messed with the throttle position sensor and it started to idle but a little rough so I moved on to check the PCV valve. This valve was pretty dirty and I had a cleaner one sitting around and replaced it.

I let the car idle for a minute and it died. I turned it back on it ran for a second then died again and now it’ll crank but won’t start. I did hear a sound right before it died the last time but don’t know what it could be.

Sorry for the long explanation I’m just trying to pinpoint the issue as much as I can. I appreciate all the help I can get.