Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,574 topics in this forum
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i have a nice electric fan installed on my 240 and was wondering if the stock 240 alternator is gonna crap out on me after a couple weeks.......thanks
Last reply by dero, -
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Well, I am haveing some trouble...When I first got my Z it leaked alot of oil, I just kept filling it up. I finally did my first oil change on it since I'd got it, and replaced the filter (probally 4 years old, been sitting). Stoped my oil from leaking almost completly, I thought the seal around the filter was the problems then and haven't worried about it. I just got back from a 500 mile round trip in which my car used slightly less the 3 quarts of oil. The engine is in good shape, and I doubt hardly any of that was "burned", most just leaked out. I noticed spots all over where I parked the car, even after just 10 minutes. It looks to me like its comming from the front o…
Last reply by smg1404, -
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This is what I plan on running in my 70 240Z autocross / street car L28 block E88 head + 280 valves + port & polish + milled gasket Triple 38mm Webers or dual SUs from www.ztherapy.com Bored to 2.9L 10:1 comp pistons shot peened rods 2 3/4 inch header w/ 2 3/4 inch piping all the way back 5 speed w/ R200 w/ a 3.90 Lightened flywheel I was thinking about the E31 head but its aquisition is quite difficult isn't it? If anyone knows where to find one for a relatively good price (sub $700US) I'd greatly appreciate it. Also, what about an N42 head with dual SUs? Also, a cam suggestion would be awesome...cant seem to find something I like.
Last reply by onemore240, -
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I was just wondering how far anyone had succesfully bored a f54 block out to as I want to go to 3L without changing stroke Thanks Ash
Last reply by onemore240, -
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My next thing to do on my list it the exhaust. I dont like the 6-2 MSA style header. I did see on ebay a hooker header part number 8116-8115. However, I cannot find a retailer for hooker headers that offer the datsun headers. These header are duals but they have flanges on them. Anyone know who sells them? T
Last reply by 74FAIRLADYZ, -
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Anybody out there running a 190 degree thermostat? And if so, where does the needle sit (on a stock '72) gauge? I noticed a while back that I had no thermostat in the system, so when I changed my water pump I also put in a new thermostat. I let it run after installation for a good twenty minutes and no over heat and good heat out of the defrost. Ran down to get a bushel of blonde lager and the damn thing overheated, not quite in the red, but definitly hot. When I finally did get the cap off, the coolant level was right where it should be. ?????????? Also, now that I have made these changes, upon a fairly modreate rpm, I hear a new noise in the heater core / valve tha…
Last reply by smg1404, -
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I am setting up my 260Z for racing and I'm planing my cooling system. The question is, on the right rear side of the head, there is a water outlet fitting that appears to go to the heater core. Can this be capped off or does it have to run back to the block at the lower radiator hose/ engine block connection? Britt
Last reply by Britt Boyette, -
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I was looking at some of the performance figures for these two engines and noticed the 240Z seems to have a better engine as far as the numbers for horsepower and torque are concerned. Why is this? Don't they share most of the same parts? Also, if they share the same pistons, where do they make up the longer stroke of the 260Z crank, in the rods? I have a 74 260Z with the E-88 head and the round top carbs and I'm always wondering how to get more out of it. Cam and headers are first on the list. Britt Boyette
Last reply by Ivan, -
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What happens when you try to run without the throttle opener with the Hitachi HJG46W (round tops) carbs? I have a 74 260Z and I'm looking at different mods like getting rid of the EGR and the air injection system along with the throttle opener. Britt Boyette
Last reply by Britt Boyette, -
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ive just rebuilt a e31 head and had it shaved, ive allready got a exhuast and k&n's, the stock exhuast manifold looks like it flows pretty good so i dont know if a header if worth getting, oh yea i forgot im running a 60 ish shot of n2o....
Last reply by Ed, -
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i have piping that is about 2 3/4 inches wide, and i am afraid that it sits too low (the car is lowered 3 inches) and will be a problem. Are there any alternatives that i can do with the exhaust and still have a sound good and good performance?
Last reply by Ed, -
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My COOLANT hose that is ... The hose shown in the pic attached (thanks ken for the pic!!) is too long on my car - it has a kink in it so I guess not as much coolant is getting through as there is supposed to. I figure I can just cut a bit off the end, but I'm not sure if when I take the hose off whether coolant will spray everywhere! I undid the clamp a little bit and coolant sorta dripped/spurted out - the engine was cold btw. Can I take the hose off without having to flush all the coolant out ?
Last reply by Zedrally,
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