Well the plan works and i finally found time this am to finish it. Balanced vac, pcv, hidden wires. All with vintage SK ITB. Why do I do this to myself!? Gosh I love to tinker. 

Now to see if she will run again, which the neighbors love.

Re: Haltech 750, premium harness/ 240Z

What is the consensus for mounting the ECU and wiring harness location?  Laid out / grouping wires and most for my application (L28 NA ITB) route to the left of engine compartment. Power / grounds for the ECU and fuel pump wires are the only wires traveling right and back. 

Anyone punched through the firewall just left of the hood latch cable grommet? 

Any issues with this location?

 Thanks. 

Passenger side kick panel. Wires come through the firewall by the battery.

Thanks Conedodger,

Understand, stock wiring harness right kick. Adding a Haltech ECU to a non EFI (NA) car, overlaying the stock harness. Would like the shortest distance to the sensors, most are left of the head. 

Thanks.

Finally figured out how to get the vac tube to clear the linkage. Last piece of the linkage puzzle is done 

Duffy,

Hope all is well. Please contact me directly at anwhiteford@att.net. Have a couple of basic wiring questions to the Haltech 750 ECU. Just need some confirmation before I turn the key.  

Thanks for your help. 

Final touches on this new R35 coil bracket design. Next is laser cutting for final test fitment. Joseph Monti did a great job with this design, the boot angle was all his idea.  Previously the coil boots had a huge curve in them, which we both hated, this splits the difference (22.5 degrees).  I also disliked the coil head angle I had originally decided on.  This new coil head angle keeps the wiring nice and secured.

That's a very nice looking bracket.  Will you mill it from a block or use a sheet and form the mounting tabs on a brake?

On 7/24/2021 at 4:26 AM, ETI4K said:

That's a very nice looking bracket.  Will you mill it from a block or use a sheet and form the mounting tabs on a brake?

5 axis milled from a single block.  

Lots of tuning to go! But she is alive

I figured out all my ITB issues. My fancy no contact tps sensor has this goofy huge 0 volt rest area. I had it clocked, but from 0-75% throttle the tps didn’t change at all. Then 75%-100% throttle it would move. Basically 0-1.1 volts at full throttle. 

So it would bounce .00-.15 volts and the ecu thought that was like 0-10% throttle. 

So clocked it 70 degrees. Starts around 2volts and goes to 4.3 volts. It’s super happy. Somehow this took forever to figure out. I can be so dumb. Now I can actually start to tune it.

Ummm… Duffy? It doesn’t seem like you need tons of tuning!