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elishallen

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Posts posted by elishallen

    HY35

    in Turbo / Supercharger

    Posted · Edited by elishallen

    You can get by without the TPS. I ran my megasquirt without one until just recently. It really helps for datalogging and flood clear.

     

    Edit: Oh and the accel enrichment.

    ECU only functions properly when connectors are cleaned

    in Trouble Shooting / General Engine

    Posted

    Back Story: Car randomly started to lean out 16-20 Afr under (attempted) acceleration.  76 body w/ Stock 81 L28ET

     

    This morning I picked up some QD Electric Cleaner and sprayed all the connectors on the ecu harness. The results were instant and incredible. I drove the car around the neighbor hood and to get gas. Now pay attention to this next part: I turn off the car to fill my tank, and turn the car back on and go directly home.  A storm then passed over and afterwards the car started to lean out the exact same way as before. I thought the ECU got some water in it so I took it out, opened it up, and let it sit inside for about an hour and a half to dry. The ECU the goes back in the car but nothing different happens. I then use the QD again and it runs just fine. I turn it off and let it sit for about ten minutes then get back in and its leaning out again. More contact cleaner goes on and it works. So now I can only get it to work by spraying the connection.

     

    In Summary: car ran great and was able to turn off and back on once while keeping performance. The rest of the time the ECU connectors must be cleaned if I want to go anywhere. 

     

    Anyone have any ideas as to why this is making the car run but only for one time?

     

    Turbo engine vent routing n42 intake manifold

    in Nissan L6 Forum

    Posted · Edited by elishallen

    Barely any different. There was a bad startup but then it went back to normal (bad). So is the j pipe port for the blow by upper hose ONLY? I now see that the lower needs to be on the other side of the throttle. I am still missing where the air regulator is supposed to run to. Thanks for being so patient with me NewZed :P

     

    Edit: after staring for another few minutes I noticed the lower blow by hose needs to be before the turbo. Thanks.

     

    Edit again: Would it really change anything moving it before the turbo? It seems like that shouldnt matter, but im no expert by any means obviously. 

    Turbo engine vent routing n42 intake manifold

    in Nissan L6 Forum

    Posted

    LOL!

     

    Elishallen, just to be clear, you've connected the crank case vent directly to the J-pipe with no check valve? And by J-pipe, you're referring to the pipe that connects the turbo to the throttle body? Also, what do you mean by "behind the throttle?" Behind the throttle would be in the intake manifold, but if you have it connected to the J-pipe, that would up-stream, and therefore, ahead of the throttle.

     

    To answer your question about airflow through everything, it is very important. The factory service manual does a very good job of explaining how it all works.

     

    Nigel

    Thanks, I take it that this is a very incorrect approach?

    Turbo engine vent routing n42 intake manifold

    in Nissan L6 Forum

    Posted

    So I just finished up swapping an 81 l28et into my 76 280z. Runs and drives but far from a smooth running car due to only having a downpipe haha. Using the n42 intake seemed like a good idea at first but I really didnt study up enough on it. Problem number one: the turbo blocks where the crankcase vent goes into the manifold. My solution to this problem was to just run it back into the J pipe, figured this was pretty much the same thing as before just without the little check valve and now it is behind the throttle. Problem number two: What to do with the other line I had running from the T connector, that was connected to the vent on the valve cover and airflow regulator, back to the j pipe. I ended up capping it off and didnt really see any change in performance. I guess my question here is how important is the airflow through everything? Does the air regulator actually need to be connected before and after the throttle?  I think this will be much easier to diagnose after I get an exhaust on the car, but for now its just running poorly. 

    1976 Fuel pump wiring after turbo swap.

    in Trouble Shooting / General Engine

    Posted

    Hey guys! I followed bumblezee's guide to doing the 1981 l28et swap and made sure to cross my t's and dot my i's. I don't think he covered how to wire up the fuel pump. So far after studying some diagrams I think I can use the 4 pin connector under my drivers side dash that has a black and white switched 12 V from the ignition. Can I run the switched power into the relay and then back into the blue/green wire going to the fuel pump? And would now be the best time to install a fuel pump switch as an anti theft precaution? 

    1976 280z Help

    in S30 Series - 240z, 260z, 280z

    Posted

    The charge light will be on unless the car is running and the alternator is working. So if your car isn't running, then your alternator is not being spun enough and thus your light is going to be on. My 76 was having similar issues, you need to bust out the FSM and multimeter and trouble shoot the ignition problem. I kept talking to people online for about 3 days when mine wasnt starting. After only ten minutes of checking voltage and resistance, I found my pickup coil was bad.

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