here is my post from 300zxclub.com. taken from sport compact car

I will quote the mag here on the rx-7 first:
Recalls:
1. Fuel Line recall ( replace original with more heat resistant lines and add a fan control unit to run fans if coolant gets toohot even if engine is off)

2.Cooling System recall (replacing the water pump bearing housing, the water level sensor and upper radiator hose, the thermostat gasket, and ALL water hoses above the engine.

3.Brake Recall ( replacing a vacuum check valve and hose leading to the brake booster. Original may stick preventing power assist when braking.

Other problems:
- no boost above 4500rpm
-oil pressure gauge reads 0 psi
-hood squeaks and rattles
-hand brake light comeso n while driving
-low coolant alarm goes off
-radio flashes "err" code (who cares about this one?)
-paint problems
-battery failure n leakage
- brake rotor warping
-suspension clunk
-cracking factory wheels
-oil pan leak
-interior parts cracking and breaking

Make sure u get a bost reading of 10psi up to 4500rpm and drop to 8 psi by redline. I f not there is a vacuum issue.

Apex seal and O-Ring problem. If not repaired will require a complete rebuild.
In other words prepare to spend some dough.