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dpuma8

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Posts posted by dpuma8

    Mrs. BLOZ UP - 92TT

    in Z32 Series - 300ZX

    Posted

    Awesome!  My wife has a 94 TT and I am in the same boat as you.  Hard to shift it into gear if the car is completely stopped and while at a Z specialty shop, the engine blew up.  So I will be watching this to see how things go since I have the same situation as you.

    Does the fuel pump have to be mounted lower than the fuel tank?

    in Fuel Delivery

    Posted

    Darn.  Got my car started with Megasquirt but this in trunk method didn't work for me.  The Carter fuel pump would get very hot while my Walbro pump was pretty loud.  I read the FAQ about directly connecting the Walbro and Carter fuel pumps together but then the poster mentions a problem 14 months later.  I want to move everything out of the spare tire well and direct connect the two pumps together near the gas tank if recommended.  I also want to get rid of my surge tank since from what I hear, my 75 Z doesn't need one (is this true?).

    How do I connect my EZ Wiring harness connect to my 280zx turbo alternator?

    in Ignition and Electrical

    Posted

    Where do I connect the Alt Power and Alt Excitor wires on the 280zx turbo alternator? When I plugged everything in, the alternator started smoking. How do I get this corrected?

     

     

    Also my 280zx alternator did not have a ground screw so I just added one from my nuts and bolts bin. Is this okay to do or does it have to be a specific size or fit?

     

    Just got my megasquirt working so I am dying to get it back on the road.

    Megasquirt with no O2 sensor? Other questions as well

    in MegaSquirt

    Posted · Edited by dpuma8

    Hi everyone,

     

    I got Megasquirt to fire up a little but it won't stay alive for more than 15 seconds so I was hoping to get some guidance on how to get this idling well.  Here are my questions regarding my car.

     

    L28E, Megasquirt 2 with TunerStudio 2.6.14, 240SX TPS, 280ZX Turbo distributor

     

    1) My valve cover breather no longer connects to anything.  Does this create a vacuum problem when running the car?  I can't seem to get a definitive answer if it does or not with a FI car.

     

    2) I do not have an O2 sensor installed in my car yet.  Can I still get a decent idle without one for the time being?

     

    3) When testing Injector channel 1 In Tunerstudio, it sounded like the 4,5,6 injectors were buzzing and not the front ones.  If these are connected wrongly, does it matter with batch fuel injection?

     

    4) My alternator is not wired up so I took a charged battery and attempted to test for spark.  The spark plug would make snap sounds but I didn't see spark really.  When I grabbed the spark plug wire, my fingers would get zapped a little and then I would see the spark plug fire strong.  Or if I put the plug near the body of the car it would spark.  Is this okay?

     

     

    (Why am I getting "Error You aren't permitted to upload this kind of file".  How do I fix this?

    Priming oil pump and electric oil pressure gauge

    in Nissan L6 Forum

    Posted

    Hi everyone! I am making the conversion to megasquirt and swapped over the 280zx turbo distributor. First attempt at priming the oil pump, I filled the whole pump with petroleum jelly and no oil which did not work. Then I filled the pump with oil and tried again by cranking the engine. This time I had oil coming out of the cam oil holes but my electronic speedhut gauges never registered any pressure at all.

     

    Does oil consistently coming out of cam oil holes when cranked mean I primed the oil pump correctly and the electronic gauge is just slow to register? Or do I need to show pressure on the gauge before moving onto the next project? Just want to be safe

    Is this distributor off one tooth?

    in Nissan L6 Forum

    Posted · Edited by dpuma8

    I was switching the distributor to the 280ZX Turbo one and I cant quite get it to the 11:25 that I am seeing on the internet. What I have is almost 11:25 but not quite. It seems I either get this or 12:00 for the shaft. I am asking also because on the diagram from the FSM, it shows the rotor pointing slightly ahead of one of the internal distributor screws while mine is pretty much pointing right at it.

     

    Am I a tooth off or is it fine?

    post-7714-0-06607200-1419448531_thumb.jpg

    Does the fuel pump have to be mounted lower than the fuel tank?

    in Fuel Delivery

    Posted · Edited by dpuma8

    I am trying to fit the 1QT BC Bronco's Surge Tank into my 1975 Z along with a Carter fuel pump.  I have both fuel pumps in the spare tire well and have a thick cover that screws over the wheel well.  The surge tank is mounted in the old fuel pump location in the fuel pump bracket. 

     

    I am assuming I made a mistake now but just in case, I wanted to ask.  Can my Carter pump be located higher than my gas tank?  If I ditched the surge tank, would there be any issue of going Tank>filter>Carter Pump>Walbro?

     

    Current setup is Tank > Filter > up to the Carter Pump > Surge Tank > up to the Walbro Pump.

     

    Attached is a picture of a format I kind of copied from this site.  It is from the 5thgenluder build

    post-7714-0-72136900-1408989121_thumb.jpg

    240SX or stock 280Z TB for use with megasquirt?

    in MegaSquirt

    Posted

    On my previous car I bought from someone, I had the 240sx TB, Z31 turbo ECU, 4 puck clutch and Fidanza lightened flywheel. The car was extremely hard to start from a stop. There didnt seem to be any feathering of the clutch to get smooth and easy starts.

     

    Now, I have Megasquirt waiting to go into the car and I need to update the TPS but I need an adapter to get the 240sx TPS on the stock 280Z throttle body. I tried making an adapter but it isnt going so well. So now I am considering just changing my stock throttle body with my extra 240sx one. Can I adjust the pedal sensitivity through megasquirt? Those with the bigger throttle body and MS, is it smooth when starting from a stop?

     

    My new car has a slightly upgraded clutch and will have the fidanza lightened wheel.

    1976 hard time idling after AC and heater removal

    in Trouble Shooting / General Engine

    Posted

    My Z was running pretty well  before breaking off a bolt in the thermostat housing. While waiting for replacement parts to come in, I removed all AC components, heater, dash, and I added a three row radiator.  After getting the thermostat housing back on, the car had a hard time starting and when it did, it barely idled.  It sounded like a huge vacuum leak was somewhere on the driver side of the engine.  I used starter fluid and sprayed everywhere and there were no signs of vacuum leaks even though I could hear them.  When spraying looking for leaks, the fluid would sizzle between the 3 and 4 cylinders near the intake manifold.

     

    Next what I did was open the idle screw which made the car idle correctly and start up fine but the problem was when giving it gas, it would stumble a bit.  On test drives, it sounded fine but then coming to a stop sign meant the car would barely idle again.  Last night I drove around the block and at a stop the engine would die if I gave it any gas at all.  This morning it wouldn't start at all so I don't know where to start.

     

    Any suggestions?

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