Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,568 topics in this forum
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- 2 replies
- 1.2k views
Does anyone know where I can finde a turbo kit for my 72' 240Z, I see alot of guys on this site with turbo Z's and i would love to turbo mine. Any help would be great.
Last reply by thefastestz, -
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- 5 replies
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Hi all, Well, I've only had my new '72 240Z for a couple of days now and I've already discovered numerous things about her that set her apart from manual transmission cars (she has an automatic transmission). One of those things is a dual point distributor. I was talking to my mechanic about this and he said that this was an emissions thing and suggested that I just drop in a single point dizzy for simplicity of maintenance. Has anyone done this before? Would it actually work? Additonally, if I had a single point dizzy in there, then could I not take the next step of putting a Petronix ignition in the single point dizzy? I can't put a Petronix in there now because a…
Last reply by beandip, -
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What needs to be done to make this setup work? I have read that the head needs larger valves. I'm trying to get an idea just what's involved here. Any machine work? Can the head letterally be taken off the original engine and bolted to the F54 block with no other work needed (provided there's nothing wrong with it)? Reason I'm asking is that I was going to go with a P90 head but have discovered that to make it worth doing there is some machine work needed (shaving the head) and from what I can tell you can just bolt the N42 on and have the same compression as the worked over P90. If the N42 is truely that much easier of a swap for the same gains I will change directi…
Last reply by TKR514, -
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Hi. I'm installing a triple weber set in my 240z. With the new intake manifold there's no place for a pcv fitting. So now i have a hose, coming from the block that suppose to hook up to the pcv, hanging around. Is it ok to leave this hose hanging? If i have to hook it up to a pcv, how would i go about doing so? There's no pcv fitting on the new intake. dunno what to do.
Last reply by ZmeFly, -
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Since I kinda hijacked someone else's thread I am starting my own here but this is a link to the background of what I'm talking about. http://www.classiczcars.com/forums/showthread.php?s=&threadid=7875 I went over to another member's place to do some testing on my car and we started with a compression test. Here are the results. cyl 1 = ~120psi cyl 2 = ~120psi cyl 3 = ~120psi cyl 4 = ~40psi :surprised cyl 5 = ~120psi cyl 6 = ~120psi So it is now clear why my Z will not run well went she is cold (runs good when hot, after being driven a bit) and explains the blowby! With this info we skipped the leakdown test, which is what we originally started out to do.…
Last reply by Daniel, -
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- 977 views
1972 240z with a 280z engine, just did an oil change, alot of the wiring isnt hooked up, but when i start the car, it idles great, runs just as good so far, but it spits out some damn thick exhaust, there is no cat on this car ;p, but even for a car with no cat, but there is even to much exhaust for no cat, any ideas on how to tune it so it doesnt do this, or as bad? thanks, james
Last reply by beandip, -
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I have Just put Weber dgv's, MSA 6-1 header, 2.5 full exhaust on my 73 240z. It has not been tuned yet, except what I could manage, but I am wondering how much that could affect the performance. How much horsepower could be hidding behind my poorly tuned carbs, unadjusted valves and poorley tuned ignition. I ask this question because I am not sure if the l24 has enough potential to get my car to where I want it. I know the l26 has a different crank and that increases disp. The l28 bored a little bit. Both of these options dont seem a reality to me. I may be able to get a bud with the tools to do an engine swap in a weekend, but I probobly can't be taking my whole b…
Last reply by ardKore, -
Cam towers
by 26th-Z- 3 replies
- 1.4k views
Will these towers fit on a E31 head? Can anyone give me a little advice on the technical info about these? Is this a good deal? And where can I find new ones? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2420029459&category=33614
Last reply by 26th-Z, -
Vapour Lock
by raman- 5 replies
- 1.8k views
Has anyone had really bad Vapour lock on there 240Z. I cannot drive the car if it is over 28 Deg C. does anyone have any ideas on how to fix this. My car is stock. Ben 1972 240z
Last reply by raman, -
Aussie Cams
by raman- 10 replies
- 2.2k views
I am about to buy a new Cam, and I am just trying to find out what cam shafts are available in Australia, and if they are worth the money. I was looking at a Crow mild cam as i do a lot of driving. any thoughts? Thanks Ben 72 240Z
Last reply by raman, -
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I am experiencing a heavy exhaust odor from my 280. I think it might be a crack near the manifold. Just wondering if anybody has any suggestions on how to tackle the problem. I am hoping I can fix it myself.
Last reply by NH-75-Z, -
Smokin Zed
by biker- 5 replies
- 1.2k views
I have noticed lately that my poor little Zed is starting to blow a bit of blue smoke under acceleration. I was hoping that it was fuel but something tells me it is probably oil.. Power is still good and oil pressure has no noticable change except at idle where it seems to drop a bit lower than normal and I can smell oil fumes in the car. I usually associate blue smoke with either rings or valve seals. Anyone got an idea on how to eliminate one or the other. Any other suggestions as it seems to be more noticable since I changed the coil to a higher voltage.
Last reply by biker,
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