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My 280z


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I have a 1981 280zx, but I ended up losing the title to it so it sits in a field since I can't find the original owner. I came across this 1977 280z in really good shape, I traded a samurai for it. The only rust it has is from a small dent by the rear tail light. Other than that its a rust free car. It seems like someone was restoring it and then just quit working on it.

 

I was told the engine had been rebuilt. It may have been at one time by a retard. I fixed the firing order and it fired up, but it sounded like it had a stuck valve. I went to fill it up with water, and the water from the radiator went into the crankcase while it was running and also filled it up, and then ran out of the side of the block. I was not very happy.

 

So I then drove it around with the water/oil soup mix and tried to finish the motor off. It would not die, so I held my foot on the gas for awhile with no water it in and it still would not die. This engine started and was able to move the car in and out of my shop for the next 4 months or so. Go figure I cant kill a 280z.... I found 2 more 280zs in horrible condition, both should be in a scrap yard. One started on ether. I traded a junk trunk for both of them to a guy that has a truck fetish. He will not sell or trade you anything unless you bring him a truck. 

 

I got the motor in out of the junk 77 280z, new injectors and plugs and im sliding around the streets by my shop playing fast and furious. So now I think I need a clutch. :)

 

I think this motor may have a small cam or flat top pistons in it as it was faster than my 280zx before i took it apart and it pulls very hard to 6500-6800 rpms. It feels like it will run with my 350z through 1st and 2nd gear 3rd gear rpm drop is poo though.  I thought the NA cams fell on it ass at 5500 or so? It has a n47 head. When i stuck a screwdriver in the cylinder to find tdc they feel like flat tops. But I could be retarded, although it does run now. Once I fixed the stupid bccd valve thing and put a muffler on it I can actually drive it without scaring children and old women flipping me off. 

 

I stole the snowflake rims off of my 280zx they actually don't look to bad on it. I do not have picture of the snowflakes on it yet. I will put some more up soon.

 

Here are some pictures..

280z3.jpg

 

280z2.jpg

 

280z1.jpg

Edited by rocks
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I was finally able to drive it. I had to play swap the throttle body a few times after putting epoxy in the wrong spots to disable the BCDD thing. Welded a glasspack on it. Sounds a little better than a straight pipe. Im going to need to put a header on it or swap the manifolds. I have one bolt on the flange to the down pipe. One is broke off and the other stripped. The exhaust hanger is just the right spot to wedge everything together with no leaks.

 

 I checked the cylinders again and im pretty sure it does have flat top pistons in it. N47 head N42 block. It will take up 20 degrees of timing on 91 without pinging, or I cant hear it over the exhaust. The elevation here is about 4500' so that could be why it doesn't ping. Anyway I took a short video of it, it didn't come out so well. If anyone cares to speculate from the sound of the exhaust if it has a cam or not be my guest. It does have new injectors, plugs, wires, cap , rotor. So I do know it isn't any of that.  

 

Edited by rocks
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Drove the car 130 miles after I got the tires put on. It did really well. Gets kind of scary light on the front end around 115 mph. I got around 15 mpg with a 4 speed manual at 75-85 mph. I filled up with gas, put 14 gallons in it, and now the car miss fires over 4500 rpms at full throttle. I hope its bad gas. Either its that or i'm thinking its the accel coil i bought from the parts store.

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