So, some time ago when I got my rebuild put in my 88 NA, they forgot to put in the 5th and 6th ports. It took a while to discover that this was the problem with my lack of low end power, and since then I've discovered two problems...
1. the ports are caked in carbon, which would make it very difficult to clean out (without spilling carbon dust into the housings), and
2. I can't find anyone who has the ports for sale.
Does anyone out there have any ideas or alternatives to get me back some of my low end?

 

take it back to the shop and see if you can knock some sense into them (tell them they need to clean it out quick and install the 5th and 6th ports like they should have). they might even have some sort of basic one year service warranty that could possibly help you out in this case.

 

Ya, unfortunately, that's not possible. This has been about 3 years, and the shop no longer has any responsibility in it. That's why I'm asking if there is an alternative to having the 5th and 6th ports.
Additionally, the problem still remains that noone seems to sell the actual ports which I no longer have.

 

you can go to a junkyard and find a dead NA RX7, pull the lower and take the port sleeves and the actuators.


As for cleaning it..... do a couple seafoam treatment and run it hard for a bit. Should loosen up and burn the carbon up quickly. And its a lot of fun to leave thick dark clouds of soot in your wake.


BC