We have found that NGK makes the best plugs for Hondas, and we use them exclusively. On supercharged and turbo applications we recommend at least a step colder spark plugs, along with decreased spark plug gaps. This leads to increased power, increased efficiency and more reliability. In addition, there is a higher knock threshold on the same octane fuel. We have seen 80-100 whp increases in power at the same boost level when compared to a log style manifold. A log style manifold essentially chokes up the cylinder head flow, and is no where near as efficient as a properly designed tubular style manifold. The s2000 cylinder head flows VERY well and does not tolerate high back pressure in the exhaust. On a turbocharged s2000, we recommend using a tubular style exhaust manifold to achieve the best possible power. SOS and Competition clothes are both other great options that we have installed successfully over the years. This seems to hold around the 350-400 ft-lb of torque capacity, and will drive almost like the OEM clutch. The most popular clutch/flywheel set up has been the OEM AP1 flywheel, ACT pressure plate and OEM disc. Once we start turning the power/boost up the clutch slips, and the tuning session is cut short. While this may seem obvious, over the years we have had many s2000 clients come in for a dyno tune with a stock clutch. We recommend upgrading your clutch in any forced induction application on the s2000s. We have done many back-to-back tests with aftermarket headers and exhaust, and have not seen substantial power gains for the money spent. The OEM cat breaks down quickly, as well as aftermarket high flow cat options. A test pipe is HIGHLY recommended, though. On supercharged s2000s the OEM headers and exhaust are more than adequate for making great power. If you are using E85 or race gas, run as much boost as you can achieve with your particular supercharger kit without over-spinning the supercharger (Kraftwerks) or having belt slip issues (SOS, Vortech, CT, etc). This actually reduces power, and you end up making the same power at 14 psi as you would at 18 psi. Anything higher and too much ignition timing is pulled in the tune to keep knock levels in check. Supercharged boost levels for stock engineįor supercharged s2000s we recommend keeping boost around the 12 psi range on 91 octane, and 14-15 psi on 93 octane on stock compression/stock engines. Gains of 20-40 ft-lbs of midrange torque and 10-20 whp are possible with a custom tune, aftermarket intake and test pipe. If a test pipe is not allowed in your area, a high flow cat is the next best option. Quality intake brands are K&N, AEM and Injen, Invidia and Berk are both quality options for test pipes. Those modifications give the best horsepower per dollar spent in conjunction with a custom tune. Best Naturally Aspirated Bang for the Buckįor a naturally aspirated F20c/F22c the best bang for the buck modifications are an intake and test pipe. 12 Things You Should Know Before Dyno Tuning Your Honda S2000ġ.
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