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Found 11 results

  1. Hello all. So I recently picked up a new 1976 280Z Non CA. It has a few mods to it. Stage III schneider cam, headers, monza exhaust. Something failed on the EFI and the previous owner cracked open the AFM and tweaked a bit. This is causing the engine to run extremely rich. The coolant temp sensor is dead also. I've decided after seeing many split wires and splicing that it would be best to start new with Megasquirt. I plan on purchasing the MS2 3.57 assembled unit and wiring harness. I know this question strays from the normal. I know the option of going to a 82-83 dizzy. As of right now, I just plan on running MS2 for fuel only. I know there is a trigger input that comes into the ECU like the stock setup. Is this acceptable for the MS2 or can I not use this. My understanding is that the injectors fire on every third pulse. Looking through wiring diagrams I put together this diagram. The 1976 datsun looks like it uses a dual coil setup with a transistor ignition box. Can I still have the megasquirt hooked up with this setup or will it not like it? Any advice would be greatly beneficial.
  2. Looking for the complete package or parts of it for my 260z.
  3. Looking for the complete package or parts of it for my 260z.
  4. With my seating position, my small-diameter fat-ring steering wheel is blocking my tach view right in the key areas. OK for DD but already at the first autox I had to keep hunching over and was undesireably encumbered. So I'm looking to make a shift light/indicator for my 72 240Z. Still in the concept stages and any suggestions/resources/corrections are greatly appreciated; I've found a surprising lack of any information of this kind. Im aiming at passive electronics, but may consider Arduino. I'm comfortable with either but mostly just would like to figure out how such a shift light indicator would work when fitted to distributor ignitions - ie what that signal looks like coming off the coil, or similarly even just how a tachometer works in that sense. So really the key is confirming that it is a 12V square wave with frequency reflecting that of all spark plugs firing. I have a multimeter but no data collection hardware at my house. I presume its 12V at the positive terminal where the tach connects. I have a 3 ohm coil, no ballast resistor. I have an electronic dizzy but thinking about it as points seems viable and simpler, so my thinking that I'd like to verify (please correct if wrong): voltage builds in coil when the contact is closed then releases into plug when it opens. so i would think there would be 12V at the input terminal when the contactor is closed and goes to zero when it fires - thus spark signal could be considered a falling edge triggered event. Although necessary to make sure I'm thinking correctly, that level of detail isn't really functionally necessary as all we need is frequency of this signal. I could just determine the RPM I would like the light to go off at, then correct to 'revolutions per second' then multiply by 3 (inline 6 = 3 ignitions per revolution) and we have target cutoff frequency to design circuit for. Right? I havent thought through the circuitry too much yet but generally seems like it would just be: high pass filter (tweaked to frequency) --> inverter --> light (?) Arduino may have the advantage of multiple RPM set points without having to reassemble the circuit. Then just use whatever kind of light - maybe even under the windshield vents as a HUD As I said any recommendation / correction / resouce is welcomed. Thanks in advance. Ben
  5. Up for sale is 1 distributor from a 1983 280zx Turbo setup. This was taken out of a running car. Sold as is everything in the picture is include (Distributor, Oil shaft, Wiring) I'm looking for 140$ + shipping + Paypal fee (2.9%) Shipping is on buyers expense, ask for quote and more info. Tracking, Insurance and Delivery Confirmation will be include in the shipping quote. It will be paypal payment for fast and safe process. Shipping will be done as soon as the payment will be clear. Regards Nismo_ZXT
  6. So I finished a rebuild of a 1982 280zx Engine recently and put 4-screw SU carbs on it and a stock exhaust manifold with 2 inch pipe and a turbo exhaust back so I can drive it daily with out waking up the neighbors. This is going to be pretty long so go ahead and ask questions and thanks for reading. Now to my problem/question: Driving now during break-in the engine makes a bothersome sound for daily driving that has not gone away in 200+ miles of driving. It has a very lopey and gurgle/burble exhaust and rev characteristic that sounds like a car with a cam that is way too hot for the application even though my cam is the stock grind. The idle is solid and does not jump around more than 100rpm on occasion and falls back to normal without dropping low after letting off the throttle. I fell like the carbs are well tuned and not the problem but I feel like the issue has something to do with timing and/or various tuning adjustments/gap settings of the car. I cannot for the life of me find a 280zx distributor with a working Vacuum advance so I've given up on trying to find a working VA and come to grips with losing the mpg saving that come from the Vacuum Advance mechanism. After tons of research I found info on using mechanical advance only and ended up buying a distributor on a recently wrecked running car that I pulled off and put on with very little rebuilding. 1st. I put it on and centered the Stator/reluctor inside, checked for basic function, set plug gap to 0.040", checked compression (all cylinders ~160), rechecked my hot valve gap and did some small adjustments to specs. Wired up the E12-80 module (tach still works, lucky me). Also cleaned the ztherapy carbs out and set to baseline for initial start up. 2nd. Then I set initial timing to 10 degrees BTDC and revved the engine to get mechanical advance all in (I messed up resetting the timing pretty badly at first and caused a few massive backfires, but corrected it quickly and nothing seemed damaged). I read 22 degrees of mechanical advance at 3500rpms which seemed higher than I would want for mechanical only advance. 3rd. I bumped initial timing to 15 degrees and got 37 degrees total at 3500rpms again and the car began to drive a better than when I had the pertronix and 240z distributor on the engine but it still seems to have a decent amount of noticeable engine/valvetrain noise and still doesn't have the free revving capability many people claim comes from the 280zx swap and from other Z cars I have driven in. Tuned in the carbs best I could with unisyn for the smoothest idle, the smoothest I got still seemed rougher than it should be, and got 22 inches of mecury at idle from a vacuum gauge at the balance tube. 4th. Checked the distributor advance reference spreadsheet for my model, D6K81-01 which should actually have 17 degrees centrifugal/mechanical advance at 2800rpms. If that is true than I should be able to go to at least 20 degrees initial which I think might be better for smoothing out the engine and driving feel. Should I trust my timing light here? I am new to timing and did tons of research before attempting it so do you think it is possible I may have used my dial on my timing light incorrectly causing the reading to be a bit off? 5th. I have most of the parts from 2 280zx distributors I tore down as well as the 240z distributor so I'm going to try and rebuild a distributor from parts while I use the current one to drive my car daily and continue to finish engine break-in. The new one I build will have no Vacuum advance either cause none of mine are in usable, the 240z vacuum dashpot had a medium fast leak that keeps getting worse over time so it's not reusable either. I also heard that many rebuilt dashpots have the wrong advance setting and can damage the engine if used, plus I'm sure every breaker plate I have has the broken plastic bearing run. I'm asking here on hybridz cause we have no reliable distributor shops in the area so I can't have it recurved by a professional so I'll do it myself and learn from the experience. How do you go about re-curving the mechanical advance yourself? Like where do did you get different springs for the weights and how do you do this slotting thing to lower the total amount of mechanical advance? From what I understand about timing, advance, VA, idle/cruise mixture, and off-idle mixture it seems like I would want about 23 degrees initial and 12 mechanical to when all in. I would like to know how that sounds to you smart ignition guys and here suggestions or examples of your recurves. Additionally I would like to here your thoughts on everything else I have mentioned that you think might be causing the odd driving and revving (e.g. plug gap, exhaust, etc...). Or if you think this is caused by a completely different issue than let me know, cause I have the original 4-speed that I did a mild overhaul on while out, but I have not done any work to differential or the hubs so something could be catching or clunking in there. I'm not very sure of the fuel delivery system (small leak from the Facet fuel pump and weird FPR, and no fuel rail or retunr line, but fuel pressure checked out) so I'm replacing that shortly anyway.
  7. Everything is from a 1983 280ZX with 3N71B auto trans. Complete, uncut wiring harness: The sticker on the computer reads A11-654 806. Some of the connectors from the engine bay have UV damage, but everything else is in great shape. Asking $80 plus shipping. Window motors next.. I tested them after they were out of the car, and they can power themselves freely in each direction. Asking $15 ea. plus shipping. Finally, the distributor. I installed this D6K8 dizzy on my own 240Z and verified that it works perfectly fine. This came out of a '83 ZX. Probably noticed by now that it has an E12-93 matchbox module. I've been running one of these for years now on my own 240Z. It was what I had on hand when an E12-80 failed on me. When the later modules are wired correctly, they work just as well as an E12-80. Just need to run 1 extra wire, and I've posted about it before. Glad to share how to do it. Asking $80 plus shipping.
  8. I need the wiring, including connectors, for the output from a late 280zx. Turbo electronic distributor. This is the dizzy with the single circular 360deg plate with 6 x output marks at 60deg intervals which connects to the 280zx ECU and is driven by a splined driveshaft not a straight tongue. I need the 4 pin (female) connector for the dizzy end with it along with a length of the wiring. The other end is not important but preferable if you can split it out from the loom. Alternatively I would be happy to purchase a complete "engine section" wiring loom as I can use this in stead of adding bits to my 260z loom. Can pay by PayPal or EFT. Thanks Andy
  9. 280~Master

    Turbo drive spindle possition

    Does this look right or is it a tooth off?
  10. I'm looking to gauge the interest in a custom plate to mount the later ZX distributor to the older [points] style base. I recently converted my distributor, but didn't have the luxury of acquiring the mount from the ZX donor; The mount being the aluminum collar that actually bolts to the front cover. Neither adjuster plate would work; the points plate did't fit the ZX distributor and the ZX plate didn't fit the points base. I ended up making up my own hybrid adjuster plate from some ~2mm plate I happened to have laying around. If there's any interest - I can't be the first one this has happened to - I can make a CAD file of the part available (I haven't developed yet because I've only made the one by hand). That way any CNC shop can cut/burn one out on the cheap, or print out a pattern to cut by hand. If there's interest, I'll take mine apart and draw it up.
  11. noelawinslow

    Chopper Wheel Swap Tip

    So I noticed an easy way to tell what orientation your chopper wheel is when you do the 300zx ecu swap. Notice the attached picture, how there is a circle punched in by the top piece? It competes the notched out space in the CAS, that indicates the top. The bottom doesn't have anything that could punch out a circle. Just a thought. (Yes, I know the pictured chopper wheel is a 280zx wheel, I just installed mine)
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