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Nissan 300ZX

317 messages,  Last post on Dec 02, 2009 at 1:40 AM

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What is this discussion about? Nissan 300ZX, Coupe

This forum is for anyone interested in the 300ZX, all years and variations.

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#42 of 317 Help! 1990 300ZX Turbo with upgrades by leet2 Jun 23, 2005 (10:33 am)
Hello,   I’m looking for some help. My friend, who past away last June, has restored and upgraded a1990 300zx turbo. The car is in excellent condition and has close to 48,000 miles on it. He used all Stillen parts for the upgrades. He purchased the car for around $13,500 and from all the receipts I have the upgrades come to around $30,000. I know there is a problem with the air flow or it’s running to clean (too rich). When the twin turbo kicks in its dragging. Anyway, I live in South Georgia and I can’t find anyone within 200 miles that can help me with this car. The shop that did the upgrades was in Tallahassee and is closed down. My friend’s sister wants me to keep the car. I would love to keep the car but with no one anywhere around that can check out the car for me I really don’t know how much to offer her. I know this is an expensive car to keep. I need to find someone who can help me with the car and I also need to know how much to offer my friend’s sister. I want her to feel good about things but I don’t want to pay a lot to her and then have to turn around and put a lot back into the car. The car definitely needs to be running at its prime. I’ve driven the car when everything was set right and all I can say is “What a rush.” I really need some suggestions. Thanks.
#43 of 317 What could be wrong? by netscape22000 Jun 29, 2005 (5:28 pm)
Owner of a 93 300zxtt with about 140,000 miles and getting some pretty heavy blue smoke out of the left exhaust upon starting and this continues for some time until it seems like it burns off and their is no more smoke. Will get it again if the car sits for some time and then it's started up again. Car also is very sluggish and does not seem to have full power. Looked at the plugs and found oil on some of them. Am I looking at a possible overhaul of the heads? Replies to this message: Mr_Shiftright (Jun 30, 2005 6:54 am)
#44 of 317 Re: manuals [guyguy] by repairman982 Jun 30, 2005 (1:02 am)
Replying to: guyguy (Mar 20, 2005 6:47 pm) I got my 84 300zx from the recycler under the freebies section. It wasn't running but hey what can more can you want it was free.
#45 of 317 Re: What could be wrong? [netscape22000] by Mr_Shiftright HOST Jun 30, 2005 (6:54 am)
Replying to: netscape22000 (Jun 29, 2005 5:28 pm) I think one of the turbos is worn out and allowing oil to leak into the intake manifold. Seems to me if the heads (valve guides or stem seals) were worn you'd be getting smoke on both exhausts. I'm not sure how you do this but you need to check boost on both turbos. If the left one is lagging, this explains all your symptoms I think.
#47 of 317 What could be wrong? by netscape22000 Jul 19, 2005 (3:25 pm)
Previously posted a message on getting some blue smoke on start up of my 93 twin turbo when disappears after the car runs for some time leading me to believe it's burning off oil. Was getting smoke mostly on left side of exhaust but now getting smoke on both sides. I am hearing that the car could need a entire head job which could run about $5000.00. Anyone else had anything similar happen to theirs that could give me any information? Car has about 140,000 miles and this is the first major mechanical issue.   Appreciate any info..... Replies to this message: Mr_Shiftright (Jul 22, 2005 1:16 pm)
#48 of 317 Re: What could be wrong? [netscape22000] by Mr_Shiftright HOST Jul 22, 2005 (1:16 pm)
Replying to: netscape22000 (Jul 19, 2005 3:25 pm) leaking turbo seal can do that, too, then engine vacuum sucks oil in through the turbo to the intake system.
#49 of 317 A few bugs in my '86 300ZX by zookeeper30165 Aug 06, 2005 (5:14 pm)
Hello, I bought an "86 and hope to bring it back to life. A couple of immediate concerns are: 1: occasionally when I shift to 2nd gear the engine will bog down as though I have depressed the clutch for a sec or two and then it will run normal.   2: The temp runs hot when I run the ac. I have been told that the cooling system and thermostat is ok and the problem may be the radiator may be the problem. It does not leak or appear to loose any antifreeze.   Any advise(other than shoot the car) will be greatly appreciated!
#50 of 317 zookeeper30165... by hpmctorque Aug 12, 2005 (7:01 am)
Regarding your second concern, the radiator could indeed be the problem, and if it's the original one it is likely the problem. I changed the original one in my '88 (naturaly aspirated) a couple of years ago, at 150,000 miles.   Please let us know what you do.

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