Mitsubishi ASX Tuning

"Tuning guide to the greatest Mitsubishi ASX modifications."

The ASX is a good car modification project to execute. With the right mods your ASX can be transformed into a fun car. Don't waste money, do your homework and follow our unbiased guides to each performance upgrade to avoid disappointment.

We examine ASX tuning and point out the premier modifications. Mitsubishi ASXs are fantastic to work on and with a few sensible sports modifications you can positively improve your driving pleasure.

 

Tuning tips and articles

Engine tuning Transmission tuning Care care Intake & exhaust mods Improve handling Forums

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

Spending justa little money on the top engine and handling upgrades could transform your car into a very credible performer.

Smaller engines do not provide much of a return in terms of power so start with a bigger engine. Engine swaps are a good option if you have a small engine size.

Power mods.

Typically these sports kits are usually fitted by our members, decide how far you want to go before you get going.

Getting the right uprated mods for your planned usage of the car is a time and money saver. Stage 3 (competition) mods just won't work well on the road hard to control in slow traffic.

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

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

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

Your aim when modding the engine should be a flat and wide torque range. You want to avoid sending all the torque to be at the top end unless you are creating a competition car.

In this article we shall give a brief overview to the best mods for your car, but we'd encourage you to spend some time on the site looking into the details of each type of performance mod.One of the most cost effective mechanical sports upgrades you can do to your NASP engine is to fit a fast road camshaft .

The exhaust and intake 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 hard to drive in traffic. You'd need to follow a cam upgrade with other mods and finish with a performance chip for the best performance gains.

When pushing up the power you will need to pay attention to to the fuelling. More power needs more fuel.

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

Uprate the fuel pump to cope with the extra fuel requirements of your tuned ASXs uprated injectors.

Intake and Exhaust Tuning.

Breathing mods are usually next up. Please note that WE DO NOT RECOMMEND INDUCTION KITS, unless you have tuned your car with over 30 percent more power and are finding that the standard air intake has become limited.

Maximum power gains come from a full induction kit with a cold air feed on heavily tuned engines, this can be sited within an air box but a panel filter should suffice for most applications. TorqueCars suggest you use a panel air filter as these are easy to clean and maintain and generally perform better than paper ones.

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

Airflow through the head can be dramatically increased with some professional flowed (porting and polishing). These should match and be setup to take into account any other engine mods. A good triple plate fast road power clutch will help to keep that power going where it should. Never make false economies or ask a standard OEM clutch to cope. The best mods we recommend for your ASX are Remapping or piggy back ecu, fast road cam and air intake and exhaust.

NASP engines do not achieve big power gains if you remap them, unless you have done extensive modifications. With turbocharged engines this is another story. A remapped turbo will give large power gains and fully release the potential power of the engine. The most impressive power gains for NASP engines usually involve the addition of forced induction. Turbos are generally harder to add than a supercharger. It is more challenging to map a turbo as the boost increases exponentially with rpm.

The nice proportional boost and rpm characteristics of the supercharger make them more straightforward to map. Alternatively you could fit water injection to minimise knock.

Handling/Suspension upgrades

Improving the handling for people first priority in your ASX tuning project.

If you set the toe out to 0.9 to 1.5 degrees on the front, and add a tiny bit of negative camber then cornering will usually be enhanced.

We suggest that you fit motorsport suspension and lower the car by 28mm - 37 mm. Larger drops require arch work - especially on models already equipped with performance suspension.

Alloy wheel upgrades.

The benefits of alloy wheels include reducing your unsprung weight and more efficient brake cooling via the extra air flow they allow. Pay attention to your choice of tyres (tyres) for your car, a good directional tread pattern tyre can really enhance your cars handling. The downside to large alloy wheels on your ASX is that you alter your effective final drive ratio so this will have a negative effect on acceleration.

Due to this we would advise sticking to a maximum wheel size of 18 inches, although we know some of our members have installed larger rims with no problems.

There is a more updated version of this Mitsubishi ASX Tuning article on TorqueCars.com.

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

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