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About Box5

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  1. Sorry to hear you have fitment issues. Those appear to be the 2.75" tubes? I had to send mine back to be modified like the pic below. I'm surprised they sent out the original design knowing it had no chance to clear the #1 spark plug, or #7 plug like in your pics. Passenger side was never an issue, but Drivers side needed the jog on #1 primary (pic below), and #7 needed a dent or jog (I dented mine) because I wasn't going to send them back again.
  2. Thanks Richard. The exhaust was one of my favorites parts to do, i've never done a full one myself before so it was a nice test. Your Z is awesome, that looks really good and extremely clean, especially the 240z bumpers and air dam, love that look. Hope your LS swap goes off without a hitch, you're gonna love it. Where did you find your bumpers listed to get them from Vietnam?
  3. About time to ditch the crash bumpers now that it drives again. Interior somewhat sorted too. Spectre 6284 shift boot worked after modifying it but wouldn't recommend due to the custom nature of it. Working on a leather outer boot now. The shift ball is a trailer hitch modified (shift balls are pricey :X) one day i'll get a real one :D.
  4. Got the last bit done tonight, tucked as close to the diff as possible. Just need a couple hangers here and there and full weld it. *Got it fully welded and driving. The combo of Dynomax Bullet and Borla Pro XS are an amazing combo. Smooth deep and mellow at idle, comes alive with rpms but still smooth and deep with no rasp to note, very happy with those products. I was able to do the entire exhaust with just the mandrel bends listed above, didn't require any straight tubing.
  5. Got some time after work to start the exhaust. Tacked everything back to the bullet so far. Didn't end up needing the 2.5" straight piece, the mandrels above had enough straight sections. Tomorrow hopefully get the 3" section and muffler in place.
  6. The video was open headers but my next step this week is to fabricate an exhaust. Got a straight stick of 3" and 2.5" pipe along with the following parts: (My goal is for little to no drone, but still a nice deep rumble, so we'll see how this goes).
  7. Wiring is "complete" aside from shortening o2 sensor wires and lengthening the oil pressure wire. Grabbed IGN+ 12v from the Ignition Coil/Resistor since it's hot in Start + Run for the ECU. (Voltage dips between start/run but that's a split second). My car was an automatic so I grabbed a direct starter signal from the seat belt relay (near the fusible links on passenger fender) this takes the inhibitor switch and seat belt relay out of the question. To get rid of the voltage regulator I saved the #1 (Blue) charge indicator bulb wire in case I want that someday, then connected the #3 (Yellow) and #6 (Blue) wires on the car side of the voltage regulator plug for the brake warning relay to still work. The plug has 6 pins counting clockwise from the top. The rest of the wires ignored/removed. Maxi Fuse Block powering the 4 old fusible link body harness wires, second maxi block for alternator and engine harness, straight 4 gauge from the battery, 8 gauge to alternator. Intake complete with 3.5" aluminum tube K&N RE-0920 Filter (3.5" ID flange)
  8. Got some electrical parts to convert to maxi fuses and protect everything off the battery. Alternator wire will be 5ft long when installed (max current for that is about 125amps @13.8v) So with the 105 amp alternator it should be ok and with a 100 amp maxi on that wire.
  9. I received the Tachometer today with a note saying "requires ECM input only," so big thanks to JCI for that. Also JCI came through with the 1.75" header revision, they look like the ticket now. Bought MSD 32829 Plug Wires. (narrow, bendable) Only tight boot clearance is Cylinder 7 (Drivers side Firewall) but there is a small air gap. I plan to lightly tap a dent for more airflow around the boot, but I believe JCI will revise that on future batches and these headers will be spot on for 280z LS guys. Cylinder 7 Cylinder 7 close up (small air gap but close) I can bend them away so might not even need a dent. Next closest boot is Cylinder 1 (Passenger front) but has a healthy air gap and I haven't bent the boot for more yet. All the rest fit like this with tons of clearance.
  10. With the JCI reworked tach, do I still need to run the LS tach signal wire through the stock resistor under the passenger dash?
  11. Bit of confusion with the header situation from JCI (thought i was getting 1.5's back, but I ended up getting a reworked 1-3/4" set. You can see the modified first primary to clear a spark plug and boot well (I'll get pics installed with MSD 8.5mm bendable boots tomorrow to show clearances). Still might dent the drivers side primary closest to the firewall (far right in the pic below), but it should be minimal and if JCI can touch that primary up on future batches these headers should be perfect for LS swaps in 280z's. Thanks I appreciate it. Good luck with your build, I'll keep an eye out for when you get going on it.
  12. JCI is sending his original 1.5" design once the fabricator finishes, hopefully this week. The 1.75" set was really nice but needs a drivers side redesign to work well in my opinion. There's plenty of clearance by the steering shaft to have all spark plugs fit with the 1.75" primaries, but it can't just be a single mandrel 90, the 1st primary would need a bend down then back to join the others, the dent was going to be massive I didn't want to restrict just one port. 1.5's should tide me over since I might do a cam eventually but nothing too crazy yet. It's part of his Vital Liquids set. He'll sell them individually though if you need just an adapter.
  13. Slow going, waiting on a header fix. Bought a low pro Accel boot but the dent required would have been too big for my liking. Hopefully getting a 1.5" set of headers. Bought a 12" Spal 30102038 Fan to run alongside the generic one that came with the Champion Radiator, had to cut out the shroud for the bigger fan but it mounted fine, hopefully can run it off the 30amp relay I have, we'll see. JCI Oil Pressure Sensor adapter (attaches to oil pan on drivers side) JCI Coolant Temp sensor bushing (replaces freeze plug on Drivers side of block) Both of them installed
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