Every cloud carries a Silvia lining
The S15 has become a popular drift car with its good weight distribution and large array of cheap performance tuning parts.
It is also a storming track day car with the right modifications and provides bullet proof reliability.
It shares many components with many other Nissans notably the S13,200sx, R33 skyline as well as the S16.
Drift tuning and fast road tuning could have similar aims with the primary difference being mainly drivetrain and suspension related.
If you are pushing more air into the engine then you will need to match this with more fuel.One of the first mods will be to uprate the injectors. The big daddys are definitely the Nismo 550cc injectors that will need a R33 fuel pump from the GT-R to deliver the fuel needed.
Tuning tips and articles
OEM replacement turbos will give better power and gratifaction characteristics. We recommend a ball bearing based turbo for resilience and fast spooling nature. An alternative choice is to go with a conversion to a larger turbo. The GT-RS turbo is a start performer using a Garrett GT28 compressor.
Utilising components from the R33 skyline and a range of tuning parts from HKS, Boss and Blitz you can expect to hit higher power figures approaching 400bhp.
Breathing mods should also be up high on your selection of modifications. We may suggest a BOSS stainless steel manifold and a HKS muffler on the rear. (The Dragger constitutes a good sound but we have now seen the most effective power gains from a HKS hyper muffler.)
Addition of any fast road cams, say 250-260 degrees (not a race spec one) will lift power a little bit more and it is entirely possible to hit 400bhp with this selection of modifications.
Uprating the clutch becomes vital as soon as power rises above 250-300 bhp.
An intercooler will increase the efficiency of the forced induction side of the engine.
You will also benefit from a boost turbo and controller actuator. For competition use heat can be a problem so get a good quality oil cool such as the Blitz oil coolers.
A remap will help to lift power to higher levels but this is better left to last and we would certainly recommend a custom remap.