I have a 1988 RX-7 Convertible NA
I have the following
Alternator
Back Brake Pads and Rotors
Thermostat and Gasket
Changed Differential Fluid
Replaced Manual Tranny Fluid
Fuel Filter
Had fuel system cleaned
Spark Plugs and Wires
Front brakes are in the works now
What now I am wanting to do some things but don't know how necessary they are (struts, springs, exhaust, catalytic converters, vacumn hoses, radiator, etc.) Are these a good start? What do you think. My dad bought the car new in 88 it has 60,429 miles on it. He has kept up general mainteneance and tires but thats it. Any suggestions taken. Also where should I purchase these things for the best price? I am only getting about 16 mpg and have been using 93 octane.

 

Well, whats your goal? More power, better handling? Or keeping it as stock and reliable as possible (and emissions too?)

Unless, FL has no emissions laws.

 

Change the O2 sensor, it should improve your gas mileage. You should also send in your injectors to get them cleaned and flow tested.

EDIT: You only need to use the low grade octane. A N/A rotary engine doesn't even need as much octane as is in 87 octane fuel. About the only reason to run higher grade fuel are the extra additives in it.

 

"Only" 16 mpg on a stock setup? That's pretty good. Just before my NA blew up, with a brand new O2 sensor and passing emissions I was getting 12.

 

Rewire the fuel pump, make sure the MOP is working properly, clean the engine bay thoroughly to be able to see leaks easier, replace bushings, struts, and springs.. Etc..