General Discussions - 300ZX Related

Guys, i know this might weel sound stupid but start as i mean to go on...How do you measure the exhaust bore diameter and where should i be measuring it from? The tail pipes ive got are 4", the pipes out the back of the sliencer to the centre box are 3"..is this the 'bore'? Reason is i was told all i need are new silencers so i was gonna order them from zedcentre but i cant find anything thats 2/2.25" bore??? Feel free to abuse me with 'are you stupid or what' messages!

Hallo all, thanks to Eric / Danny and the Conzult at Billing I now know I need to replace the knock sensor and the two O2 sensors. B*gger. :cry: I take it the O2 sensors are the same thing as wot the manual calls Exhaust gas sensor (EF & EC-16). I have found the immensely helpful basic procedure for plenum removal here http://www.300zx.co.uk/forums/showthread.php?t=30838 thanks to the immensely helpful andyduff. 1) I did the pcv valves and hoses last year - do you think I'll get away without redoing them now? 2) If so, from andyduff's list, I need turbo bypass kit upper-lower intake gasket throttle body gasket x 2 IACV gasket EGR ga…

I have a 1990 300zx and after my 18 year old son (with my help and guildance) changed the stocked bose am/fm cassette deck over to a really nice Panasonic am/fm/cd and I (still) can not get my regular or non-highbeam headlights to work. The fuse is ok, and I can feel/here the dimmer relay in the engine tcompartment toggle when I turn the headlight switch on and off, but I measured 0 voltages at the plug going to the light bulb itself. Does anyone know where I can view a detail schmatic of the headlight system for my year Z, or, is anyone familiar with this problem? There is a possibility that the Illumination control siginal/wire might have something to do with this?! …

Having a reocurring prob with the Z, seems whenever it goes on a long drive (1-1.5hrs) puts itself in safety boost, won't boost over 5psi. Got home had a brew, did an ecu check......code 55....all clear? :confused: seems if its run for more than an hour or so, it goes to safety boost? Recently had some issues with O2 connectors/sensors, had a conzult all clear though. Any ideas guys?

ok peeps since i got a new g/box in the car it has been very reluctant to change into top.Since i now have to replace my front down pipes as my cats are shot to bits and its obviously leaking back pressure from the front pipes the gearbox changes quicker and more smoothley so any body know why this is :confused: :confused: :confused: :confused:

Hi- please can someone clarify- T25s are std on zeds? if so, I read somewhere that T28s are almost identical and are std fit on 200sx. Does this mean they can be fitted to a Z? (Allowing for the fact the Z's have slight differences from left to right/ wastegate actuator fitting etc and 2 X 200sx tubs would be the same and need some slight modifying to fit) Is it possible? Worth the trouble? Any advantage over std? Thanks Leonard

Anybody know the nissan paint code for Bayside Blue? Wanted to make double sure that the bodyshop get the right colour!!

Ok not Nissan but Ford. Shes got a Fiesta 1.25 Zetec S. Starts runs fine, but soon as you touch the accel peddle the engine revs drop right down. Checked for leaks, fitted new Idle control valve... Ford furoms are a waste of time. Any help appreciated. I have just serviced it but the problem was there before, the only thing I did not change was the fuel filter, doing doing that now. I does seem like fuel or air issue! Rossy

Installed a pair of ApexI's yesterday. Seemed to go ok - sounded nice :D, car stalled every time it dumped :mad: but hey there's no such thing as a free lunch right? Then I'm driving to work at night and the next thing I know I look down to see the engine temperature on MAXIMUM, the bloody POWER light flashing and water pissing out over the road behind me! Luckily I was pulling into the car park so I cut the engine pretty sharpish. Lifted the bonnet and the engine sounded like it was BBQing itself. :eek: Let it cool down (obviously), filled up with water and left overnight. In the morning it hadnt lost any water and it ran ok (bar the erratic idle even tho I…

11:30pm friday night, waved to you out the rear window of a Rover 820. Thanks for waving back (Even though you did look quite confused). Nice looking car too. :bow:

I get a bit of a vibration from around 40 mph to around 70 mph (a bit unsure as the speedo keeps packing up (yet to fix(any ideas on the speedo intermittant problem)). Might this be a prop shaft bearing, I'm sure it's not wheel balancing, it seems to be more of a higher frequency :confused: if you get me drift !

what should be normal oil pressure at normal temp at idle (is the stock pressure guage crap 'cus i have an after market one that says around 2, a bit more than the stock one) What about normal running temp, the stock one is about 1/2 way but the after market one dosn't go much over 80 - 90 C. one more, if braking to a full stop and applying the hand brake, after releasing the foot brake, does your Z move forward/backward on the hand brake, sorry, had a few beers :duffer:

hello all, im hoping someone can help i have a slight prob with my speedo well it aint working basically when im driving the speedo sits at 60kph and sometimes goes right round off the scale now the kilometeres have stopped clocking up to and the power steering isnt workin either i was told by a friend this was a speed sensor so i had one fitted and its still the same please help. btw my car is a 89 na import, thanks.

Anyone ever experimented with trying to quieten their Stainless Exhaust System. At last I am gonna get the exhaust on my car made up, its gonna be 3.5 inch bore from the Cats to a Y-Pipe going to a single silencer which is 2 inch straight through. I dont want it to be really noisey, anyone ever put baffle's in the system pipework, if so what size, etc. Cheers John Crisp

See that gorgeous white Z? silver interior, gorgeous steering wheel, lovely wheels, nice rear (ooo er) such a sweet car. Around Swindon, gorse hill! Anyones on here?

Hi all. After some advise again!! Just had an oild seal replaced on the rear of my sump. They had to drop the gearbox to do it. Anyway, I was driving home after picking it up when i heard a strange noise. Sounded like it was sucking air or something and also had a slight rattle. nearly got home when i lost all drive. may aswell have been in nuetral. had to push it a couple of hundred meters ( i was *#*#ed). Any ideas? It's obviously going back but don't want them pulling the old "that was nothing to do with us" ploy!

Hello, I should be looking to sell my convertible soon and buy my first 300zx. I am looking at getting an imported NA manual. What are the performance figures on these from you owners? I have read the stats are about 230 bhp, and 7 0-60 time. But how do you guys who have bought the car and drive it feel? Is it slow is it a let down or a dissapointment? I would like a TT but i dont think i could justify - or afford the petrol costs from a 12mpg car lol... however i did notice insurance wise that a TT would cost me a bit LESS to insure then a na! (TT being a UK model).. Cheers for your help

My local motor factors is unsure of the right pads for the Z32. I have given him the year (92) Model (Twin Turbo UK) and he says there are 2 different sets for the front available ??? :( Does anyone have a part number or know the original part number? Thanks *These are only temp as Im waiting for the next batch of porterfields to come in :)

Chaps, i have just noticed a rubber switch (doesnt look like standard?) next to the steering wheel 'hub' below the dash dials...Its about an inch high and has two rubber buttons, the top one being a fan, the bottom one being empty..pressin it doesnt seem to do much? Anyone have any idea what this thing is/does? Cheers

At A46/ A50 roundabout leic. L reg .Yesterday. Looked like a stock motor. cheerz, mickey

ive blown a fuse !!!!! its stoped my intrier light,cental locking and stero where is the fuse its a jap import if theres any difreance to uk spec. ive check under bonnet and its none of them so is there a nother fuse box hidden

Anyone know the best place to get a pair of outer sills for my Z? Prices seem steep around here

Whos is this, I have seen it parked in the Moby Dick carpark a couple of time now. Think its a Jap TT, looks pretty Std

Please see this: http://www.300zx.co.uk/forums/showthread.php?t=36016 Fanx for your time :D

being and idiot revved my auto on neutral slamed it in D smopked the tyres showing off. come to jusntion went to pull away and felt like the car was in neutral. switched off engine back on and seemed ok. have i shagged me gearbox.