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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Can sombody explain the difference to me? I don't understand. steve77
Last reply by 2ManyZs, -
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I'm sure you folks have been over this more than once, but since i'm new to this forum I'll ask again. I've read on many a sight they stock H.P. ratings for the Z cars. I'm mostly concerned with the 1970-1978 models as that's what i may end up buying. I want POWER as much stock as i can get. I know weight ratio plays a factor as well. Anyway I got my used Chilton's manual in the mail today and notice the posted H.P. ratings for the engines being as follows. 1970-73 151@5600 RPM 1974 162@5600 RPM 1975-78 170@5600 RPM The 1970-73 H.P. rating looks right, but the 2 others look wrong. I've seen elsewhere the 260z having 139 and the 280z having 149. Although …
Last reply by WishN4DaZ, -
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I noticed that one member in the photo galleries section had an RB25DE motor. A couple of questions come to mind: 1) Is this the Skyline GTR Motor? 2) Does this use the same block as the L6 (i.e. is this a direct bolt in for a 240Z)? If that is the Skyline motor, from what I read it has many many ponies.
Last reply by Gav240z, -
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i have a 1977 280z with auto 3 speed ....and a 1982 280zx with 5 speed stick ...can i take the motor and tranny from th 82 280zx and put them in the 77 280zROFL
Last reply by gmoney, -
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Fellow Z riders, I have a problem with my 1983 ZX. When I'm cruising around 3000 rpms the engine studders like it's not getting enough fuel. When I increase gas I don't feel it anymore. If I drive the car very aggressively the problem seems tranparent but in stop in go traffic or city driving I have this problem. Help, I've changed all 6 fuel injectors, fuel filter, air regulator, and tuned up car (plugs, rotor, cap). I was told it may be fuel air mixture causing problem. Does anyone have or had this same problem and what did you do to fix it, other than that the car runs great
Last reply by gmoney, -
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When you take out the EFI what exactly do you remove and how do you install carbs? I mean do you simply pull all the computer crap out of the car, pull of the injector fuel rail, and the intake manifold, replace it with a manifold from a Carbed Z car, and add some carbs? if anyone has a web site explaing how i would appreciate it.. Or is it in the "How To Modify...." book? Matt
Last reply by WishN4DaZ, -
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Hi all, I'm currently working on my '75 280z with an EFI system. I want to remove all of the unnecessary emission crap. I've seen some pretty nice Z's out there with a very basic system in place. If I don't need it... I want it off. It's ok to remove the emission control systems in Oregon because we don't have to pass a smog check. If you could post pictures of a decent system or at least post some ideas about where I can start looking. Thanks in advance! [m]
Last reply by Zvoiture, -
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Ok, so 99% of the people I talk to say I am out of my friggin mind, but I really want to do this. I really like the dependablility and smooth operation of FI engines and want to see what I can get out of one without the constraints of smog (I live in CA). So let me know what you think. My recipe: '70-'73 240 chassis (smog exempt here) L28 block (F54 if I decide to bore it out, but probably not) ZX Flat-tops N42 head (probably do a light port job, probably have to change the guides) ZX FI intake with everything uneccessary filled and ground off, bored for larger TB Turbo TB Turbo AFM with ZX guts adjusted ZX harness and 'puter Of course a good induction and header and '…
Last reply by WishN4DaZ, -
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Lets say i took a 75-76 280z, with its N42 cycl head and on re-build i threw in some flat topped pistons to raise compression to approx. 10.4:1 #1 would it work #2 would the engine just go boom #3 what kind of performance gains could i expect if it did work Now i assume some machine work wouldn't have to be done to the head the strengthen it a little, but the thought still stands. Matt P.S i chose the N42 over the N47 becuase of the square exhaust ports.
Last reply by WishN4DaZ, -
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Does anyone know if Erson makes a good cams kit? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1826990526&r=0&t=0&showTutorial=0&ed=1021244417&indexURL=0&rd=1
Last reply by mattymatmat, -
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I checked my timing today and it's just slightly off. I'd like to correct it, but I don't know which screw/bolt loosens the distributor so I can make the adjustment. Can someone describe which it is? FYI this is for a 72 240 with the single point dizzy.
Last reply by Si|v3r72, -
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Now here is a question for all you turbo junkys...... From my understand the compression on a stock turbo with a P90 head and dished pistons is 7.8:1 correct ( sorry if im a little off thats from memory ) When you mix flat top pistons with a p79 head produces an estimated compression ratio of 8.8:1..... now here is the question... What if you were to take flat top pistons and a P79 and installed them on a turbo for the compression ratio of 8.8 : 1....this would increase your torque over what you used to have because of the raised CR ( right? ) but still be a low enough compression that with an intercooler could produced the high end power of a turbo motor? now i dont …
Last reply by WishN4DaZ,
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