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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In regards to the glass fuel filters, are they able to take the pressure of the fuel injection systems? I just replaced my fuel filter can, and the gas that came out was darker than mud. I put on a new filter, but would like to put on a glass one also, so I can check it often. thx
Last reply by LanceM, -
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Here is the story, got an extra head when i bought a 78 z ,supposed to be for Z, took to machine shop to go thru it and do valve job. They think it is a 80's model N47, any way to futher identify other than N47, have intension of putting it on my 77, cause the cam is trashed on it. It has no oiler tube, holes in the cam lobes, no place to plug up in the cam towers. am i screwing up by swaping it without knowing what it is, hell dont know anything else about the motor either????????
Last reply by TBK1, -
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I just picked up a lightweight flywheel and want to swap out my lightened flywheel while motor/tranny is still on the car. I wanted to get some advice before I do this, and don't want to go through the aggravation of screwing it up or having to re-do it for whatever reason. I plan to do this in my garage, with the floor jack and jack stands, and have use of a impact wrench as well for the any heavy duty torquing if needed. The centerforce dual friction clutch has been in there about 8 years, and is working well. The clutch tends to be a bit grabby so I know the flywheel probably needs to be surfaced. I am generally nice to my clutch and don't just drop it at 5000rpms eve…
Last reply by byunique, -
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I just dropped in a lightwheight Flywheel, which I bought off Ebay. I had a shaved stock flywheel before, which weighed in at 16 lbs. The new one is billet Steel, 10.8 lbs (4.4kgs), made by Trust. It's working great and taking off 5 more lbs, was a worthwhile investment btw. Engine accelerates faster, and easier between gear changes... The only thing is, when I start the car, the starting sounds of flywheel sounds totally different from the stock cast iron flywheel. I do accept the fact that the difference in metals and the difference in mass itself is going to sound different, but just wanted to get opinions from anyone else who may have gone through this. When I speeak…
Last reply by bob m, -
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The car is Australian ... pictures attached ... Thanks!
Last reply by Mr Camouflage, -
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Hi all, I have what I am assuming is an aftermarket cruise control mounted to the firewall. About a 4" can with a beaded chain going to the throttle linkage. Since I have a duplicate in my parts box from the PO's donor parts car, I thought it might have been a dealer installed option or just a popular '70s addon. As far as I can tell it is no longer connected to the electrical system. The wiring goes thru the firewall and ends in a tangle under the glove box. I plan on ripping it all out since I vaguely remember (yeah, I'm that old) they weren't that great, the controls don't look stock, and I never plan on using cruise anyway. There are also 2 wires going to the front …
Last reply by e_racer1999, -
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Just a litte FYI for those running low compression engines that havent ran the 1/4mile and wondering how good it will do. At SEZ this weekend, i ran a best of 15.096 seconds at 94.2 mph. not to shabby! i finally posted it on Zcar.com, and everyone got mad and started bashing threads, and then blamed me for hacking gotz.com. wow. so i got banned, and now im here! anywho, if anybody wonders what times they will get, here is my engine set up: block bored over .020 fresh dished pistons balanced race preped rods and crank semi ported head new valves with 5 angle valve job 60mm TB AFPR cold air intake ZX distributor 6-2-1 headers eurodampner all new valve train MSA stage 2 cam …
Last reply by Bubbleguinea, -
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Hey Guys - Which is better in performance..the L28 carburated or the fi? Let's just say both are stock engines. John
Last reply by beandip, -
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This is the header on my 240Z. I know nothing about it, it was on the car when I bought it along with a unusualy tripple carbn intake which I was told was an F.E.T. Tony D over at zcar.com seems to think it might be a moddified JDM Fujitsubo Racing header, others think it might be a BRE. I figured I'd ask here as well, you guys seem to be more into this sort of thing than the guys at zcar.com. Sorry for the crappy pictures but it's the best I can do.
Last reply by ZX-AE, -
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I was down at a couple local muffler shops at lunch looking for some replacement gaskets for the header collector to exhaust joint and someone showed me an all copper gasket. Thinner by far than your average paper+metal ring gasket and entirely made out of copper and featuring a circular groove pressed into it around the exhaust opening. I'd never seen anything like it before... Have I been trapped in a dark cave unaware of this for years? Is it a new thing? Does it even seal well? Curious to hear what you all have to say. -e
Last reply by EricB, -
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:tapemouth :tapemouth went to go to Eddie Radatz's today, he helped me adjust the valves hot finally! car ran smoother after that. but i finally asked him what that wierd noise was. sounds like its coming from the first valve, right under the timing cover. well, it only hits right at 1700RPM, nothing more, nothing less. i started the engine, reved it, and he knew instantly. its the timing chain hitting the guide. the drivers side is loose. how the heck did this happen? its got a whole new timing set on it, the guides are solid in place, whats up!?!? i really dont want to take the oil pan, the PULLEY, and front cover off. i just want to go ONE month driving this thing wi…
Last reply by Bubbleguinea, -
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Last night, my friend and I pressure tested our Z cars. Both are '72s and both have L28 engines. The only difference is that he has flat top pistons and an N42 head, and I have dished pistons with the N47. From front to back cyl, his pressures were all exactly 175psi (12:1 more or less) and mine were 130, 130, 135, 140, 125, 130. The problem is that when we put the flat tops into his car, it would ping no matter what octane gas was used. The timing was backed down to 7 deg (stock?) and now he must use 93 octane, or it still pings. Before the pistons, my 240 was actually faster, but with the pistons, we both run a low 15 second quarter. So my questions are, sho…
Last reply by zguitar71,
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