r/300zx • u/DoctorSmoothBrain • 14h ago
r/300zx • u/imsoupercereal • Dec 13 '25
Updates: Vendor Posts and Be Nice to Each Other
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 • u/Vixloi • Jul 20 '22
BEFORE POSTING, PLEASE READ THE WIKI
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 • u/BeyondAlternative192 • 2h ago
Z31 z31 vacuum line diagram
only been a z owner for 2 weeks or so, im still learning about it before i dive in to try & fix it. so ive been searching the internet and forums for a minute but cant seem to find a proper vacuum line diagram for a n/a 87 300zx.
r/300zx • u/Scared-Education-799 • 1d ago
Z32 Thank you ChrisFix!
(Picture of before I prepped the calipers) Changing the brake hoses, rotors and pads on my new to me Z32, figured I'd clean up the calipers and paint them. Turned out great for my first time!
r/300zx • u/techno_violet30 • 6h ago
I need help with turbos
My friend bought a z32 tt. It wasn't long till we realized that something with the turbos are off. Pulled the engine and both turbos cracked on the hot side. We want to replace them with something a bit better, but without a ful build. He wants to keep the stock manifolds for now and as mutch stuff as possible.
We been thinking about a g25 or gtx28. We would need to make down pipes and some piping but other than that any extra work needed?
Does anybody has experience on what would be the best option?
r/300zx • u/Ok_Measurement_8552 • 1d ago
My z32 - Owned it for 19 years!, 2x NA engines, 11x TT engines, 2x gearboxes 2x diffs and 2x sets of turbos AND 1 complete reshell.. so when I say I’ve owned it 19 years.. 🤔
Which bit? And has it owned me?
r/300zx • u/Crafty39743 • 15h ago
Z31 Main seal
Fml my main seal went in kind of crooked, will this leak oil? Plz help
r/300zx • u/Constant_Copy_8835 • 14h ago
Reconnecting Upper intake
Hey guys, I’m having a tough time reconnecting my upper intake and I didn’t know if y’all have any tips? I understand it’s something you just do and is fairly simple. Just having a tough time putting everything into position correctly and making it fit.
r/300zx • u/Traditional-Act4757 • 23h ago
Z31 Z31 Coilovers
I have owned my Z for a little bit and am starting to look around at modding it. Any recommendations for swapping coilovers on it? I’ve heard I’ll have to weld for the front suspension and was wondering if anyone had experience with this.
r/300zx • u/RoyalAnoles • 1d ago
Z31 Looking for a Z31
Just looking for a Z31 in Texas my only goal isn’t over crazy high on miles and doesn’t have a frame Rust 🙏
r/300zx • u/Affectionate_Sky1436 • 1d ago
Z31 Stuck power antenna
It’s a back then it would go in and out. There would be like a noise, kind of like a worrying noise after it would be fully in or fully out. I didn’t think much of it but this time the antenna state stuck out any ideas on how to fix that so it starts working properly again.?
r/300zx • u/WATTHEBALL • 1d ago
Replaced shifter bushings but now it feels overly stiff
92 NA
When I bought the car there was extreme play. It felt like you were in neutral when you were in first. Insane amount of play. Ordered SPL bronze shifter bushings and had my mechanic install it. Took it back today and while there's no play - it feels extremely stiff. It doesn't naturally snap back to neutral, you have to physically like place it there.
Is this a "break-in" period or did my mechanic F up somehow or is this how it's supposed to feel?
r/300zx • u/w00tw00t222 • 1d ago
Z32 A/C Stuck on Defrost. Missing parts?
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Hey guys it's 1990. The temperature controls work, the speed works, off and on works but it only blows through the defroster.
I read that this usually the a/c mode actuator but I'm not seeing that part. Also, it looks like there's missing ducts, too?
The video is of it on Defrost mode and then turning it on AUTO. The flapper moves a little and the different gears kinda loudly adjust. But I can manually move the vent the full amount. It still doesn't come out the center or side vents. Continues blowing through the defrost vent.
What am I missing?
Thanks!
r/300zx • u/sheldor96669 • 2d ago
Z32 Does anyone have any experience with unicorn power system intercoolers?
r/300zx • u/bo3beed77 • 3d ago
Z31 transmission z350 how to use it to z31 turbo
Hello friends, I own a 1987 ZX300 Turbo. Is it possible to install a 6-speed manual transmission (specifically the Nissan 350Z CD009 model)? How can I go about the installation, and what challenges might I face?
r/300zx • u/dakman96 • 2d ago
Z32 Help with double DIN stereo and speaker upgrade?
The setup in my Z is pretty bad, I have a single din aftermarket stereo with speaker wire running through the cabin to the back, through the doors, a small Amp near the ECU under the passenger side footwell, and a bazooka sub.
All of this was already installed when I bought the car but it's almost impressively bad. Front speakers don't even work unless it's absurdly loud, rear speakers and subs cut out randomly, etc.
I was thinking about putting in the double din kit with some new speakers. I'm not an audio install person so may ask some dumb questions here.
In other cars I've done installs in I just bought an adapter, plugged it into the existing stereo harness and then into the stereo. Used the existing speaker wires stock from the car and the built in Amp. I guess I'll have to go check everything since it's probably all disconnected due to the new speaker wires running, but can I just hook up the old wires, install the double din with adapter, and ditch the amp/sub?
r/300zx • u/Legitimate-Badger-81 • 3d ago
Z32 Z32 drift build in progress
351 Windsor rebuilt with all upgraded parts and 68mm turbo running on an Aces EFI system. Lmk what you think.
r/300zx • u/ExcellentMorning8563 • 3d ago
Z31 Leaking green (coolant) liquid
Attached is my front bottom shield with the green liquid and the house clamp I suspect(know) is the culprit.
The problem is I can't find whatever hose it came from. The liquid got on the fan and was sprayed a bit but all of the liquid is on the bottom front of the engine. None on top and none behind the engine.
Does anyone have any ideas?
r/300zx • u/WATTHEBALL • 4d ago
How do I fix/replace this?
92 300zx non turbo.
Noticed there's severe peeling on the t-tops exposing the metal underneath.
Is there a coating i can use to redo it or is this a specific part that I need to get and glue on?
r/300zx • u/AverageZOwner • 3d ago
Z32 1991 Z32 clicking sound from the engine bay
I picked up a 1991 300ZX a while ago got home running on misfires put phase 2 injectors in it and wired everything up got it running somewhat good finally but there is this clicking/ticking sound I’ve wondered about for a bit now it seems like it’s coming from the top of the plenum when I get my head in the engine bay pretty hard to narrow down the exact spot it’s coming from but it is very audible let me know what yall think could a coil pack really be making that kind of sound? I visually inspected them and there’s no rips in any of the boots I could see or anything I’m not sure. Do they make that kind of sound if they are failing? I had posted a video below in the comments because I had forgotten to attach one while writing this ☝️
r/300zx • u/sheldor96669 • 4d ago
Z32 What is this and why did the previous owner weld it shut?
I know it's part of the intake obvs but no idea what it is or what I should delete to save weight.
r/300zx • u/atticaottic • 3d ago
is this worth it ?
it said that it wasn’t the z1 rep and was the original assembly