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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Does anyone out there have experience with swapping radiators into a 240Z? I am looking for some more cooling - I now have a 3 core 240 rad. I want to go bigger than a 280 rad and was wondering if anyone has heard of other applicatons including hoses that may fit in a 240. thanks
Last reply by Fentin_Fury, -
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My 1973 240 starts to lose power after 10 minutes of driving. It gradually slows down to a crawl and then quits. I had the fuel system checked and it is OK. Any suggestions? Casey
Last reply by 2ManyZs, -
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I've got a 78 280Z that I'd like to quiet the exhaust down on. Here is the current setup: Stock engine MSA header 2.5" pipe 28" glasspack next drive shaft Small turbo muffler at rear Right now I get a loud resonance at around 2000RPM. I added the glasspack this winter hoping it would quiet it down, and it did, but not nearly enough. I'd be willing to go back to the exhaust manifold if needed, but I would like it to breath almost as good as it does now (pretty decent high RPM power). I'd rather not go to a stock setup, but I just might. What are others running? What is the best combination that will keep the sound level down, but not choke the exhaust flow. Any suggestion…
Last reply by inline6, -
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javascript:smilie(':stupid:') I have noted a number of comments on the site about not raising the compression beyond 9.0:1 due to fuel considerations. In the past, with American V8s, the rule of thumb was, that you could raise the CR by one point if using an aluminum head. Why doesn't that work with a Z head (L-6)? Further, does anyone have a rule of thumb for how much the compression goes up on a N42 or 79 head per thirty thousands (.030) cut/milled off head surface? I read on another site, that an eighty thousands cut on a P99 would raise it to appx. 10.0:1, but this is the 81-83 head with the larger combustion chamber/raised deck (8.3:1 to begin with). Also, when usi…
Last reply by ecp48, -
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I live in London and have relatives in L.A. It seems the best place to buy parts is the states. Just wondering if anyone can give me a hand with names of firms in and around Los Angeles for ordering parts. I get over there every now and again and can pick up and take the parts back home avoiding cost of shipping etc. At the moment I'm looking to do the Eibach upgrade for my 71 240Z. Who would I contact for springs and spacers? Any help would be appreciated. Saint:ermm:
Last reply by Saint, -
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It's just about oil change time (or flush the abuse out from the previous owner time) on my ZX and was wondering (since I've owned my car 4 months and some of you are tackin' decades) what grade oil to use now that I'm done using the cheap stuff for normal new purchase routine maintenance checklists (plugs, filters, rotor, oil change(s), etc) Here are my details: Car: '81 280zx GL 5-speed non-turbo Engine: L28E FI Mileage: 177K original (no rebuild...yet) Location: Central NC (summer weather ranges 70-95 degrees F) Driving style: Shift between 2400-3000 RPM (I'm easy on my old motor) Desire: a reliable daily driver (good mpg, decent performance, and most of all, longevit…
Last reply by beandip, -
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What time does a stock 74 260z run the 1/4 mile in? I have made the following minor changes how much of a time difference could I expect? *change flattop SU's to early bell type *280zx dizzy *headers *2.5 inch pipe with hot dog and resonator
Last reply by Ivan, -
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Ok, I did several searches in the forums I could think of and could not find this but I know that I've seen it in here before. Where is the casting code located on an L28 block and also on the head? I'm lookin at an engine and need to know what block and head it is...hoping that it's an F54 block with a P90 head. :classic:
Last reply by g260, -
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My gas tank is leaking around the sending unit. I see MSA and VB don't carry it. Is it possible to find a fuel resistant o-ring of that size? Has anyone tried, and if so, did you find one, and where? Thanks, Victor.
Last reply by tanny, -
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Here it is, I have a 73 240 that was originally going to be a parts car, until I decided to expirement with building a turbo rally Z. I want to swap in an L28ET from a 280ZX. So assuming that I have all the hardware: L28ET complete w/ P54 block and turbo head with turbo and downpipe. Complete engine room harness, and accesories. Do I need to get the in-dash harness from the ZXT? Can I do all the wiring under the hood including building a box for the ECU and all additional wiring? I have no problem with straight wiring lights, and ignition to toggle switches inside the car, anything to avoid doing ZX electronics. If anyone has detailed swap information, links to, or pictu…
Last reply by Inf, -
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This may seem stupid, but when i am idling on an incline (facing upward) at an intersection or elsewhere, my idle drops to about 700 rpm. Sometimes the engine even quits. I have no problems when I'm sitting level or facing downward. Has anyone else ever had this problem? (1976 280z). Thanks!
Last reply by A2Z, -
I have a 78 280Z... one of the bolts that holds the EGR valve on broke. So there is only one working bolt left. I assume I can replace the bolt, however in the mean time I need to drive the car as it is my main automobile. So, anyway when I bolt the EGR on with only one bolt it actually seals pretty good just a minor very minor leak out the side that's missing; a bolt. (I tested it with soapy water with the engine running.) My question is can I use a copper sealant such as Permatex Ultra Copper to seal this up and help clear up any EGR leaks??? Will this hold if I do this??? I know that copper sealants are ok for Exhaust manifold gaskets and such so I'm just wondering if …
Last reply by bryantatem,
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