Even though the Mazda RX7 is very powerful in its standard form it is very easy to tune and squeeze out a lot more power. There are many examples of FD's out there with increased performance because 400+ bhp is easily achievable. These are the normal steps a tuner would make to see these kinds of gains.
ECU
An ECU is a good base to start which allows you to 'map' the way the engine works. This is also a good way to make the car more reliable working in safer limits.
Breathing
Replacing the standard exhaust and air intake combined with a re-map using an aftermarket standalone ECU such as the Apexi FC Commander will open up the range a bit further for the garage who will be mapping your car.
Fuelling
Increasing the size of the injectors means that higher amounts of petrol can be injected into the engine. When I fitted the Apexi FC Commander ECU to my FD the tuner informed me that my injectors were fouling the safe limits so I had to upgrade the primary injectors up to the same higher capacity as the secondary injectors.
Non-séquential turbo mode is also a very good upgrade for the car, really powerfull and doesn't cost big money, unleave the air pump, double pulley , sooooo many things :D
ReplyDelete