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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Can someone help me understand what the lift and duration numbers mean? More importantly how do I compare different cams and know what their characteristics will be like? Example: Lift .441 Duration 260* Lift .460 Duration 260* Lift .480 Duration 274* How do I compare these and know which one is good for what application?
Last reply by Corganx33, -
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Hey guys. Can anyone local (Maryland?) suggest a good machine shop?? I'm hesitant to just "pick one" out of the Yellow pages. Thanks!
Last reply by 26th-Z, -
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Are these good or bad???? Just cracked the head off my project and this is what I've got. Any thoughts appreciated. The 6th Cyl. looks the same as the 4th Cyl. THANKS Luke
Last reply by Ed, -
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I will be googling..but... Anybody know anything about thes guys in Japan? Anything about the engines at all? Anybody heard of them? Thanks, :classic: Jim.
Last reply by HS30-H, -
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Hello all, my 1983 f54 block is all set. What I want to know is with my P90 head. I had the head milled .050, with the stock block (non-turbo), what would be my compression ratio? Is an easy answer possible? Please let me know. Thank you, Rick.
Last reply by Ed, -
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http://www.classiczcars.com/forums/showthread.php?t=6748&page=1&pp=15&highlight=valve+clearance I just installed an N42 head with a mild cam (.441 lift and 260 degree duration). The person I bought it from said he had a machine shop go through it, resurfaced the rocker arms, etc. He ran it for 2k miles and decided he would go with one of his other heads. He warned me the valves were noisy, and they are. They sound almost like a diesel truck idling. I've adjusted the valves hot and that's not going to resolve this. The thread above suggests that the lash pads are not the correct thickness for this new cam and the valves are not being closed properly. I w…
Last reply by beandip, -
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HI, I am finally putting my Z back on the road after moving cities, working too many hours and having too little money. Its been in the garage for about 2 years now. Times have changed, I now need to put my Z back on the road. Everything as far as I can tell is very good, but..... I also have the white smoke issue. I'm not sure if this is too serious, I hope not. I have about $3000 AUD to do whatever I need to do to fix this problem, get new shocks (probably Tokico Illumina), new radiator, heat coat the header and touch up anything else that may need doing since the engine is coming out. This may be a bit unrealistic $$$ wise, but I think maybe possible. Could talk…
Last reply by Ed, -
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I noticed that my 72 had a 7 blade cooling fan and my 73 had 8 blades. Does anyone know the reason for this? And which would provide better cooling?
Last reply by EScanlon, -
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Hi all- I stumbled across a guy selling a megasquirt, 280ZXT intake/injectors, 240sx TB, ZXT fuel pump, etc, $250 shipped. Seems like a good deal, until he sent me this picture of the intake. What's the deal with this thing? Is the affected area the EGR passage as he suggests, and is it connected to the plenum anywhere? I guess I'm just looking for someone to explain what's cut on this thing and if it's usable.
Last reply by Kyle, -
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Hey guys, I recently bought a fuel pressure regulator and some othe goodies from Victoria British, included was a fuel pressure regulator. I had problems with my old one since i put the new carbs and bigger exhaust on. I passed up the 20 $ one at autozone because i figured it was cheap and would break down. so i bought the one from victoria british... Well it turned out that they are the same one... I installed it and it worked fine but after leaving it for a month while i was at college I came back to find it not working very much at all... so i put the old one back in and it works so i know its that part... Anyway what fuel pressure regulators do you guys have? do y…
Last reply by 240ZX, -
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Hey guys, so today, i was under my car, trying to find my problem. I now 100% think that the fuel line has gunk in it, i ran a hose directly from my fuel pump to a catch, cranked it and thanks god, the fuel pump is in perfect working order. I reconnected it, and disconnected the line under the filter, ran it into a catch, cranked it, and nothing happened. So, i put a hand pump where the pump goes to the front of the car, then left the tube under the filter open, and pumped, nothing came out, not even air. So, what do you guys think i should do?
Last reply by Datsun-Fever, -
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2003-2004 VQ35DE motor in to a '73 Z? Is it possible? Anyone as crazy as me thinking of doing a swap like this? Tell me what you guys think. Suggestions? Advice? Opinions? Thoughts???
Last reply by VQ35DETT,
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