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subtle_driver

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Posts posted by subtle_driver

  1. Listen to that turbo winding down  :wub:

    https://www.youtube.com/watch?v=4BPuBpE4pH4

     

     

    The current revision of my Datsun 240z exhaust I built, is full 3" turbo back from the stock l28 garret t3 turbo, custom made turbo flange adaptor from 2.5" to 3" downpipe with v-band, mandrel bends and magnaflow round muffler as a resonator to quiet the rasp and drone. quiet enough for SCCA sound meter. Stays under 90 decibles.

  2. Hi guys, I was wondering if there was a comprehensive and successful writeup on how to rewire an l28et oem harness to work with a 16-bit z31 ecu from 1989. I tried searching for some time now, but I found a dead link to switch2zcar.com and I need the info on there to double check my work.

     

    I have a 1971 240z with an l28et at my shop. and the harness has been rampaged by a few of the previous owners and "mechanics".

     

    My l28et swap is running perfect on my personal car since i wired it full stand alone with fuse block and relay system. But this other car is driving me nuts. I already have done a full pinout test from the ecu harness to the engine components, fixed a few dozen things....

     

    I am getting spark, but no injector pulse (have battery voltage, but ecu is not grounding them. I installed new drop resistors for the oem l28et injectors, rewired and soldered most of the system, found 25 different problems and fixed them. This is where I am stumped for now, need a refresh. Any help would be great. thanks. 

     

     

  3. My stock l28et runs lean (higher than 16:1 afr) at cold start-up. It should be rich for a little bit. I have to run the engine for a couple min before it goes into closed loop and runs perfect and in specs. The block temp sensor is within specs. What does this fuel management read from and do for the first couple minutes of cold startup? Thanks!

  4. I'm looking for a set of wheels that are wider than my panasport 16x7 that i can fit on my 240z with lowering springs, and fender rolling without cutting and installing fender flares. I want to go wider than 225 if possible with competition rubber, no stretch or camber please, I need grip to handle 400hp at autocross. I'm also open to other "knock-off" wheels that are oldschool looking to keep in my budget.

    Please help me figure out what offset i need as well, I'm not very good at sizing and offset. 

     Thanks! 

  5. So my 240z has 79 280zx master cylinder, 4-piston calipers with z31 vented rotors up front with perfomance friction pads, and rear has 240sx calipers with akebono pro-act pads and z31 rotors. My problem is the front brakes lock up too easily and I can't stop well at autocross. Has anyone tried a more aggressive autox hawk pad in the rear to help with balancing and have more friction and grab in the rear? Any experience with this?

     

    I also saw a mustang kit from silver mine motors. but these won't clear my 14" rally rims. 

     

    What do you think about trying the pads, or is that a waste of time?

    Thanks!

  6. So to clerify, I have a 280zx n/a 3:90 diff in my 240z all stock axles. I bought the mc master ring gear bolt spacers, and the washer/bolt kit. is there anything else i need to finish this project?

     

    does this sound right?

    so i pull the stock cover off, and the axles, then remove the two half-moon shaped pieces to remove the center housing with the ring gear attached. then i remove the ring gear, and install it to the obx unit, then install it again and install those c-shaped parts and check for backlash? what steps am i missing? 

  7. So to answer your question, (and confirm what i read here) i think just break it in longer and recheck. use engine braking and rev the motor up near redline in gear then let off, do that a few times. My personal experience with rebuilds is it takes a few hundred miles for compression to go up. my l24 rebuild with cam and higher compression head read 160psi across the board at 200 miles. then at 1,000 miles it read 215 across the board. yay! my honda si rebuild got 20 mpg for a week or two, then after about 300-500 miles it got 30-32 mpg. crazy huh? 

  8. Here is something I made to extend out from my custom made downpipe with recurculated wastegate, when installing an rb26det into a 260z at work. it sounds amazing, and looks subtle. full 3" turbo back system with dynomax strait-through muffler. takes just one minute to install or remove, full v-band mounting etc.

     

     

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  9. Hi, I'm in the process of installing an l28et from A 83 280zxt. I have the ecu harness but discovered I'm missing the ignitor. They go for $120-$200 and I was wondering if there was a cheaper alternative I could use. Possibly from a 240sx, or a gm or ford that I can grab from the parts store. Thanks :-)

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