Loss of power
 

So i just got a 2004 rx8 and I realized it has very little torque and lacks some power I don't know if this is normal or if there's a bigger issue someone help me out?!

Lack of torque is normal.
It is a 1.3L engine after all.
The power issue is subjective. Auto trans are less powerful than sticks. I assume by your questions that you didn't get a rotary specific compression test.
That is the best way to find out if your engine is healthy or dying.
Read the new owner stickies, it's all there.

https://www.rx8club.com/new-member-f...t-here-202454/

Generating Power at Full Throttle
• Ignition Coils
• Spark Plugs
• Spark Plug Wires
• Engine Compression
• E-Shaft Sensor (ESS)
• Air Filter
• Intake Valving
• Throttle Body
• Mass Air Flow Sensor (MAF)
• Fuel Pump
• Fuel Injectors
• Catalytic Converter (Cat)


RX8 Club’s recommended maintenance schedule, more comprehensive and proactive than Mazda’s schedule.
30,000 miles:
- Replace Ignition coils
- Replace Plug wires
- Replace Spark plugs
- Clean MAF (mass air flow sensor)
- Clean ESS (e-shaft sensor)
- Reset ESS profile
- Clean power steering connections
- Clean battery terminals and clamps
- Replace transmission fluid
- Replace coolant (Mazda FL-22 is highly recommended)
- Replace air filter
- Replace brake fluid (fluid in the brake lines AND the clutch line)
~$300 USD in parts if you shop smartly.


every 60,000:
...all 30,000, plus...
- Clean all chassis electrical grounding points
- Replace accessory belts
- Clean OMP lines
- Replace rear differential fluid
- Replace thermostat
- Clean / Straighten AC condenser fins
- Clean / Straighten oil cooler fins
- Inspect catalytic converter
- Clean / Inspect intake valving
- Consider / inspect all points in 90,000+ as well, many items fail early
~$130 USD in parts if you shop smartly.

90,000:
...all 30,000, plus any 60,000 not yet done, plus...
- Replace coolant bottle
- Replace radiator hoses
- Replace radiator
- Replace front O2 sensor
- Replace motor mounts
- Inspect clutch pedal assembly for flex / weld breaks
~$900 USD in parts if you shop smartly.
At 100k, anything original in the cooling system is really suspect and failure prone. It represents the biggest threat to your engine.
__________________

Honestly, keep a close eye on your gas gauge. You will experience a "power loss" below half a tank.

Loss of power
 

The comment about gas tank level may sound strange but true.

After tracking the car with 1/4 tank gas left I noticed that the engine would not go above 4,000 RPM, like an early rev limiter:scared:

I filled the tank and the problem went away