Tuning the Lotus 3-Eleven

"Thank you for reading my Lotus 3-Eleven tuning tips."

We review 3-Eleven tuning and summarise the best modifications. Lotus 3-Elevens make a good tuning project and with carefully chosen performance parts you can maximise your driving pleasure.

The 3-Eleven is a awesome tuning project to carry out. We see car owners wasting money on their 3-Eleven doing the wrong mods and then having to start over. Follow our pointers to avoid wasting your money

Tuning tips and articles

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

 

Handling/Suspension upgrades

Improving the handling for people first priority in your 3-Eleven tuning project.

If you set the toe out to 1-1.7 degrees on the front, and add some negative camber then cornering will dramatically benefit.

Drop the car by as much as 25mm - 36 mm. and fit motorsport grade stiffer dampers, bigger drops will need other modifications in most instances.

Our aim in engine tuning should be to increase peak power at the top end.

Following our guidance for modding your 3-Eleven you will create a practical scorching car that will show up bigger cars.

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.

Engine tuning mods.

These mods sports modifications are usually fitted by our members, decide how far you want to go before you get started.

Getting the right sports parts for your planned usage of the car is a time and money saver. Stage 3 (competition) mods just don't work well on the road and will make the car undrivable.

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How to tune your car

  1. Improve the handling

    Focus on Suspension improvements, such as coilovers and make sure the bushings are in good order and that the alignment is correct. Then focus on improving the brakes, with a big disk brake conversion kit and fast road brake pads.

  2. Remove restrictions

    Focus on the intake and exhaust with filters being the common point of restriction in a tuned car. Intercoolers may also become restrictive on turbo engines so this may also need to be uprated.

  3. Burn more fuel & air

    Increase the fuelling so it matches the air coming into the engine. The ratio is important so you need to improve the fuel pump and injectors, so the head mods, big valve conversions, fast road camshafts and forced induction upgrades extra supply of air is adequately met.

  4. Test and replace any weak parts

    Weak areas are commonly the clutch, the turbocharger and pistons and crankshaft in a highly tuned engine. Makes sure these components will cope with your power aspirations.

  5. The Tune or Remap

    A cars ECU controls the fuel, timing, spark and even the turbo in some cases, so to fully extract your gains you should remap the car last and this will fully release the power. Some cars are easy to map, and others require piggyback ECU's or aftermarket ECU's but this is the most vital step of your tuning project.

Modifying to Stage 1:

 Alloy wheels, Lighter flywheel, Remap, Suspension upgrade (drop 25mm - 36 mm.), Panel air filter, Sports exhaust.

Modifying to Stage 2:

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

Modifying to Stage 3:

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

Your goal when tuning should be a nice flat torque band. You want to avoid sending all the torque to be at the top end of the rev range unless you are creating a motor sport 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.Fast road cams offer one of the biggest power gains for your money as far as a single sports mods goes on a NASP engine.

It improves the intake and exhaust durations and increases the power if done right. Ideally you'd add other mods and finish up with a remap. We'd also caution you not to go with a motor sport cam as this affects the engines idling and general town driving characteristics.

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

Frequently power losses, and erratic idling after uprated modifications are done can usually be traced to timing or fuel delivery issues. To get sufficient fuel you may need to uprate the injectors on your engine.

If you are increasing 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. Air induction kits will only help to boost power if your cars air intake is struggling! Adding an induction kit to most small engines will see NO LOW END POWER GAIN AT ALL. If you have heavily modified your engine and it's need for air INCREASES DRAMATICALLY then an induction kit is the answer and will help remove this restriction.

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 performance 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.

Do not go with the widest exhaust you can find 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.

Head work including a gas flow (ported and polished) and 3 or 5 angle valve job will really help to release the potential of the engine. When you tune up your 3-Eleven you will see that the standard clutch starts to suffer so get an uprated clutch. The best mods we recommend for your 3-Eleven are Remapping or piggy back ecu, fast road cam and air intake and exhaust.

Turbo engines are just crying out to be flashed. You will see phenomenal power gains on most modern turbocharged cars including diesels making a remap one of the most cost effective and phenomenal modifications for your money.Adding forced induction will see significant power gains but this is usually too expensive to be cost effective. It is generally simpler to bolt on a supercharger than it is to get a turbo working. Turbos provide boost in exponential proportion to increasing engine speed and this can make mapping difficult.

The nice correlating boost and rpm characteristics of the supercharger make them easier to map. Decreasing the engines compression ratio will allow you to add forced induction, water injection may also help prevent detonation.

Alloy wheel upgrades.

Alloy wheels will help the brakes cool down and are generally lighter than the steel ones. Further improvements can be made to your cars handling with the addition of track legal slick tire. It is worth noting that although they can look cool on the 3-Eleven big alloy wheels will actually decrease your performance. The larger you go the lower your acceleration will be - this to the change in your effective final drive ratio.

For this reason we would advise sticking to a maximum wheel size of 16 inches, although we know some of our members have gone larger than this with no problems.

For more information on Tuning your car please join us in our friendly forum where you can discuss 3-Eleven options in more detail with our 3-Eleven owners. It would also be worth reading our unbiased Lotus tuning articles to get a full grasp of the benefits and drawbacks of each modification.

Please help us improve these tips by sending us your feedback in the comments box below.

We love to hear what our visitors have got up to and which mods work best for them on each model of car. Comments are used to improve the accuracy of these articles which are continually updated.

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