If you are the owner of the Mazda RX-8, probably you want to improve it and make the ride even faster
For starters, you can replace the spark coils (e.g. BHR or Promaz is analogue of Bosch coils, you will need x4 amplifier Microtech). Replacement of coils should be carried out when your current coil will deny.
If you feel the vibration at idle – check and replace engine mountings if necessary.
Then you should get a good set of rubber, something like Toyo R888 for the track on lightweight forged wheels.
The next step should be the modernization of suspension and braking system. This is achieved by installing a set of coilovers, for example, KW V3, Greddy Type S or BC BR-Range (Taiwanese manufacturer that uses Greddy / HKS components), reinforced stabilizers Whiteline (greatly influence on the handling for little money), and stabilizer bushings, sports brake discs and pads.
You can replace the factory grip on some well-known brands such as ACT and Exedy, change all vacuum tubes to silicone.
For better monitoring the condition of the car, in the vehicle you can accommodate extra gauges showing temperature and oil pressure, boost pressure (for example, Racing Beat).
Further, a significant step in improving can be the installing of 2-stroke oil adapter for the oil metering pump (WDR, Oil Metering Pump). These adapters are produced, for example, by Rotary Aviation, Real World Solutions and Richard Sohn. The adapter consists of a metal plate with several holes in it and a nozzle which can be connected to a hose. The purpose of the adapter is to stop motor oil using to lubricate apex seals in the rotary engine, that gives the following advantages:
- The engine no longer burns the oil from the oil pan;
- Engine seals get fresh, clean oil;
- Engine seals are lubricated by 2-stroke oil, which should be burned.
And now a little boring theory.
Wankel engine, which are used in Mazda RX8, needs oil in the combustion zone to lubricate metal seals.
Most of the standard rotary engines use the dosing pump which injects a small amount of engine oil from the sump into the intake manifold and / or directly into the combustion chamber. Engine oil is intended to lubricate the slide bearings and heat transfer from the engine to the cooling area.
The RX8 heat transfer is made from the oil via the oil cooler. When the engine oil is injected into the combustion chamber it is only partially burned, leaving sludge. These sludges can be accumulated and they will degrade the performance of the engine, also they can cause jams at apex seals, reducing compression and, ultimately, to the overhaul of the engine.
One obvious way to prevent this is disconnecting the metering pump and mix oil for two-stroke engines with gasoline, as required to do for some of the old two-stroke engines. With this method, it was proved that the oil for two-stroke engines is effective lubrication and does not lead to the accumulation of combustion products.