Slowly but surely, I’m ticking off the items from a very long to-do list. I’m doing my best to approach this build as methodically as possible, I don’t want to rush. In abide by this ideal and still see a conclusion within a reasonable timeframe, I have to do or plan something daily.
Today, I pushed forward with the reassembly and took care of various tasks. I started by installing the HKS Twin Power unit.
Because I removed my A/C and Power Steering, a very prime location became available on the frame rail for mounting:
That spot was perfect, the piggy back harness was within good reach of the plugs and the box is relatively far from the engine’s heat. Furthermore, being down low and in an open area allows for increased air flow.
I also connected the Magnacore spark plug wires and buttoned up the coils. In my haste to get rid of the sequential system rat’s nest, I overlooked an important bracket necessary to mount the coil assembly (sold it away). Everything under there is intertwined with each other, and this bracket was actually an offshoot of the rat’s nest assembly.
This lead to a dilemma as I wasn’t sure how to find such a specific part. I called Mazda and they no longer carried it. I decided to try a Want to Buy ad on RX7Club’s classifieds. It was more or less a shot in the dark, but within a couple hours of posting, Ihor from IRPerformance came to the rescue. It’s a blessing that this car still maintains a strong resource-sharing community.
The clear braided hose in the picture below is a PVC Tygon line I’m using to vent/catch blow-by. I deleted the Positive Crankcase Ventilation (PCV) in the process. I may add in a catch-can in the future if the hose is not adequate and I notice excess oil in the intake tracts, but it shouldn’t be an issue in less than racing conditions.
I like to do my own work for a reason. It allows me to dictate full control of the operation and impart a more crucial eye. I feel that certain levels of attention to detail cannot be captured when you drop your car off to someone else – only unless you’re prepared to sign a big check.
For example, one of the benefits I’m able to enjoy is being able to handpick everything to my liking, down to even the replacement vacuum hoses. Even though there are barely any vacuum hoses left, it’s still an area that deserves scrutiny. Here’s a picture of a 3.5mm silicone vacuum hose I’m intending to use for the Blow-off Valve – the walls are nice and thick.
On the subject of vacuum hoses, I’m amazed at just how simplified the vacuum system is now. These are all that’s left:
- Wastegate Boost Pressure Sources (x2)
- Fuel Pressure Regulator
- Blow-off Valve
- Injector Atomization
- MAP sensor
- Check Valve (only Solenoid retained) -> Charcoal Canister