I have always wanted to own a third generation rx7, ever since I could remember. In high school I couldn't afford one I bought Japanese car models I put together. Blah blah now some years later I wasn't looking hard,but a rather complete shell popped up in my area and I quickly swooped on it.

The car is in rough shape but I have the time. The car needs engine transmission and all the little goodies so this past weekend I drove down to California to check out a front clip. To my surprise it had just over 60k km and it ran quite nicely as well. He took off and sold the steering wheel seats and suspension which in my eyes are the goodies you get with buying a front clip. I ended up picking it up and it will be here by Wednesday.

A couple questions I have that I looked up and couldn't seem to find


Sine I have the usdm chasis harness, which plugs am I going to have to change so that the Japanese engine harness will plug right up?

Would it be easier to just go with an aftermarket ECM to simplify the harness?

 

you're in for a very expensive project

good luck.

is the usdm harness not present?

 

which usdm harness? the ones that come off the engine were not there when I night the shell

 

What year is the JDM clip from?

 

im not sure of the year but on the fire wall under model it says rz. it has twin oil coolers I have sone pictures of it

 

Check to see what it looks like under the UIM for the solenoid rack. The later RX-7's had the solenoids all combined into a single unit often called the "black box". If you have all the solenoids in a row just like the standard US models, you won't have much of an issue aside from a few wires which will need to be re-pinned. However, I would just recommend starting off with a new emissions harness.

If you have the "black box", you'll be in for quite a bit of work:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/implementing-series-8-rats-nest-into-usdm-fds-895416/

 

if that helps at all

 

thanks for the link mahjik, that will help me tell real quick. can anyone point me to the repin ill have to do if it ismt the black box. I have not had any luck with searches am I using the wrong keywords our something?

 

call Marc at FD3s Engineering for parts and service and help. hes's the best for us guys in the NW i just got my car back from him with a new Pineapple motor and parts and the car runs flawlessly and hes a pure perfectionist! he just swapped a j spec harness into my FD and he has 2001 j spec engines for sale in the NW classifieds. his website is fd3sengineering.com tell him Sam referred you

 

I believe I bought my shell from him. from what he said he has a lot on his plate outside cars. I am pretty and cam figure things out....i just need a bit of direction. cars are just like big puzzles. you just have to take the time to put all the pieces together

 

It looks like an older FD, the crossover pipe is plastic and silver to boot. Mazda changed to the Efini y-pipe in 96. For US models they stopped painting the crossover pipe silver in mid year 93 so it is an early car.

 

at least it has low miles then. I should be gerting the clip tomortow our the next day then ill start working

 

An engine from 1993 with low miles means its been sitting for a very long time, I would almost guarantee the coolant seals are shot, or will be shot very shortly after you get it in a car and start driving it.

 

ordered a new quarter pannel today. front clip will be here tomorrow as well. I need to get a new air compressor tommorow

 

quick update.... pulling the motor out of the front clip tomorrow. I have it pretty much all prepped. I got another blown motor with all the accesories. which ones should I trade over to the jdm motor?