Hyundai Grandeur Tuning

"Tuning guide to the most effective Hyundai Grandeur modifications."
The Grandeur is a good tuning project to try. We see car owners wasting money on their Grandeur doing the wrong mods and then having to start over. Follow our tips to avoid making the common mistakes.

We examine Grandeur tuning and show the ultimate upgrades. Hyundai Grandeurs provide a fun base for your project and with the ultimate uprated upgrades you can improve your driving experience.

Tuning tips and articles

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

 

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

Spending just a little bit of money on the top engine and handling parts should transform your car into a very credible performer.

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.

This list of the stages and sports modifications are usually fitted by our members, decide how far you want to push your car before you get going.

Getting the correct grade of sports mods for your planned usage of the car is essential. Stage 3 (competition) mods just don't work well on the road difficult in stop start traffic.

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

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

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

Peak power is nice in motorsport but for a drivable and fun car you need a long torque band and perhaps extending the rev range.

In this article we shall give an overview and introduction 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 upgrade.Fast road cams offer one of the biggest performance gains for your money as far as a solitary tuning parts goes on a NASP engine.

The intake & exhaust durations 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 camshaft upgrade with other mods and finish with a remap to fully release the power gain.

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

Using high octane petrol is another option if you find you are suffering from detonation or premature ignition on your Hyundai project after fitting other tuning parts. Bigger injectors will enable you to supply sufficient fuel to the engine.

If have increased your fuelling with bigger injectors you will also need to get a bigger fuel pump to supply it.

Intake and Exhaust Tuning.

The next area for modification is the intake and exhaust. Please note that WE DO NOT RECOMMEND INDUCTION KITS, unless you have tuned your car extensively 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 Grandeur engines you should go with a sports panel air filter preferably made from cotton.

Do not go with the biggest exhaust you can get this will slow the exhaust rate - the best exhausts for power gains are usually between 1.5 to 2.5 inches. It is the shape and material more than the bore size.

Getting a professionally polished and ported head with larger valves can fully release the engines power. Your clutch can seriously let you down if it starts to suffer and the standard clutches are only ever good for power gains of up to 48%. Fit a competition clutch to avoid power losses through the transmission. The best mods in our opinion for your Grandeur are fast road camshaft, remap, induction and exhaust, suspension.

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

We've also come across some owners playing with twin charging applications and making some impressively high power gains.

The most significant power gains for NASP engines usually involve the addition of forced induction. Turbos are usually 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 however will give a boost which is proportional to engine speed so is easier to map. Decreasing the engines compression ratio will allow you to add forced induction, water injection may also help prevent detonation.

Handling/Suspension upgrades

Handling modifications are the thing most do first for the Grandeur.

Putting a tiny bit of negative camber at the front and a degree or two of toe out, will greatly improve your Grandeur in handling and cornering.

We would go to a maximum drop of 27mm - 37 mm on most models. You risk rubbing on the arches if you go lower than this.

Alloy wheel upgrades.

The benefits of alloy wheels include a lower unsprung weight and better brake cooling. Don't forget that your choice of rubber greatly affects your cars grip and handling. It is not worth compromising performance with cheap tyres when you can buy track legal slick performance tyres.The downside to large rims on your Grandeur is that you're changing your effective final drive ratio and this will have a detrimental effect on acceleration.

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

There is a more updated version of this Hyundai Grandeur Tuning article on TorqueCars.com.

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

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