Nissan 240SX Tuning

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The 240SX is a good car tuning project to do. We see people wasting money on their 240SX doing the wrong mods and then having to start over. Follow our advice to avoid making the common mistakes

Top end bhp should be your overall aim with a nice fat wide peak torque band.

Sadly with smaller engine sizes you are wasting your time spending money on modifications, so if this applies to you get yourself an engine swap then apply the following mods.

Power mods.

These are the uprated mods are usually installed by our members, decide how far you want to go before you get going.

Getting the best tuning upgrades for your planned usage of the car is a time and money saver. Stage 3 competition upgrades just won't work well on the road difficult in stop start traffic.

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Stages of Tune

Stage 1 mods: Alloy wheels, Suspension upgrade (drop 30-40mm), Lighter flywheel, Panel air filter, Sports exhaust, Remap.

Stage 2 mods: Power/Sport clutch, fuel pump upgrades, Ported and polished head, Fast road cam, high flow fuel injector.

Stage 3 mods: Adding or upgrading forced induction (turbo/supercharger), Internal engine upgrades (pistons/head/valves), Sports gearbox, Engine balancing, Competition cam.

Peak power is good on competition cars but for a daily driven car you need a long power band and perhaps extending the rev range.

The aim of our advice is to give a brief overview of modifying performance parts and point you in the right direction, our forum is where you can ask for more detailed advice and tips on your tuning project, the best modified modifications and all aspects of modding cars.One of the biggest mechanical tuning mods you can do to your NASP engine is to fit a fast road camshaft .

The intake and exhaust flow play a large part in your cars power band, but be careful here, getting this wrong can upset the idle and make the car impossible to drive in traffic. You'd need to follow a cam upgrade with other mods and finish with a reflashed ECU to fully realise your gains.

Don't forget to look at the fuelling when you are increasing the power - it makes the car more thirsty.

If you find you experience flat spots and surges after your kits you should check the fuelling and try a higher octane fuel as well. Improved injectors will enable you to supply sufficient fuel to the engine.

If you've uprated your fuelling with bigger injectors you will also need to get a bigger fuel pump to supply it.

Intake and Exhaust Tuning.

Breathing mods are usually next up. Please note that WE DO NOT SEE IMPROVEMENTS WITH INDUCTION KITS, unless you have tuned your car a lot and are finding that the standard air intake has become a restriction.

Induction kits can work well on turbo engines and larger engines (if supplied with a suitable cold air feed or air box), generally though we'd just recommend for 240SX engines you should settle for a performance panel air filter preferably made from cotton.

Sports exhausts can usually air flow from the engine but avoid an exhaust that is too wide or you could will reduce the flow rate. Stick to 1.5 to 2.5 inches for best results.

Head work including a gas flow and 3 or 5 angle valve job will really help to release the potential of the engine. When you start tuning your 240SX you will usally see that the standard clutch starts to suffer so get an uprated clutch. The best mods in our experience for your 240SX are a remap especially on a turbo, a fast road camshaft and sports exhaust, with a good air intake.

Remaps offer large power gains on all turbo charged cars. On NASP engines the benefits are doubtful. However a flashed ecu on a NASP engine will help unleash the potential if you have done a lot of mods.

We've also seen some tuners experimenting with twincharging conversions and making some seriously high power gains.

Adding forced induction will see significant power gains but this is usually too expensive to be cost effective. Turbos are generally harder to add than a supercharger. With a turbo the power curve is related exponentially to the engine speed making it difficult to map fuelling with.

Superchargers will give a boost which is directly proportional to engine speed so is easier to map. To cope with forced induction you will usually need to decrease the compression ratio of the engine .

Handling/Suspension upgrades

Handling modifications are usually your first port of call for the 240SX.

If you set the toe out to 1-1.7 degrees on the front, and add slight negative camber then cornering will usually improve.

Drop the car by as much as 22mm - 35 mm and fit sports stiffer dampers, bigger drops will need other modifications in most instances.

Alloy wheel upgrades.

As alloys are less heavy they improve performance and they can help to cool the brake disks. Further improvements can be made to your cars handling with the addition of directional tread pattern tyre. The drawback to large alloys on your 240SX is that you alter your final drive ratio and this will have a detrimental effect on performance and acceleration.

Due to this endeavour to keep the overall rolling diameter of the wheel your OEM settings. In all cases not going above 17 inches.

There is a more updated version of this Nissan 240SX Tuning article on TorqueCars.com.

For more information on Tuning your car please join us in our friendly forum where you can discuss 240SX options in more detail with our 240SX owners. It would also be worth reading our unbiased Nissan tuning articles to get a full grasp of the benefits and drawbacks of each modification.

Please help us to improve this article, we need your feedback in the comments box below which is there for you to pass on any tips, pointers or facts we might not have covered..

We really like hearing from our readers, and hearing about which upgrades were the most effective for them, it helps us improve our recommendations and articles to reflect current trends in modifications and ensures that our EZ engine guides and tips are kept up to date and we remind our visitors of our non profit non commercial approach to running this site.

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This article is flagged for an update, so please pass on specific tips below that I can include. All articles, and content was written by me, Waynne Smith TorqueCars founder. Some outlines are just too general so I appreciate your feedback and suggestions. This entry was filed under Nissan. You can leave a response below or join our forum to discuss this article and car modification in detail with our members.

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