Best tuning tips for the Honda Jazz/Fit

"Honda Jazz & Fit Tuning"

The Honda Jazz is also marketed and sold as the Honda Fit, with the exception of engine choices and various equipment/trim details the cars are essentially the same.

It was a very popular small car and because it's light responds really well to tuning although the larger engines are usually better propositions to work with.

We take a peek at Jazz/Fit tuning and show the premier modifications. Honda Jazz/Fit offer good returns when tuned and with carefully chosen motorsport upgrades you can greatly improve your driving pleasure.

The Jazz is popular among our members for tuning projects We see car enthusiasts wasting money on their Jazz/Fit doing the wrong mods and then having to start over. Follow our hints to avoid wasting your money

Tuning tips and articles

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

Handling/Suspension upgrades

Handling modifications are usually your first port of call for the Jazz. We would go to a maximum drop of 35mm on most models. You risk rubbing on the arches if you go lower than this.

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

Setting a little negative camber on the fronts and around 1 to 1.7 degrees of toe in to improve stability or toe out for better cornering, will often benefit your Fit in handling and cornering.

Drop the car by as much as 27mm - 36 mm. and fit motorsport grade stiffer dampers, bigger drops will need other modifications in most instances.

The Honda Fit makes a good sleeper car thanks to its light weight and relative large engine bay, out cornering many bigger cars on a track!

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.

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

The best power gains come from larger engine sizes. The more you start with the bigger the return on investment so engine swaps are good value mods for small engined cars.

Engine tuning mods.

Turning our attention to the Jazz/Fit engine we need to get a bit more torque out of the top end.

MK1 Jazz - Fit

  • GD1: 1.3 L L13A i-DSI
  • GD2: 1.3 L L13A i-DSI  4WD (Japan only)
  • GD3: 1.5 L L15A VTEC
  • GD4: 1.5 L L15A VTEC  4WD (Japan only)
  • GD5: 1.2 L L12A
  • GE3: 1.3 L L13A i-DSI (2007 Europe 1.4 L model. Made in China)

Mk2 Jazz - Fit

From 2007 the Jazz/Fit was rewored with a longer wheelbase and more interior space. Engine options were limited to just 2 units.

  • 1.3 L L13A i4 (79 cu in) i-VTEC - 98 hp Europe and Asia
  • 1.5 L L15A i4 (92 cu in) i-VTEC - 117 hp USA only

There was also a Hybrid version introduced in 2010.

Mk3 Jazz - Fit

In 2014 we saw a Mk3 Honda Jazz released with a much wider choice of engines,

  • 1.2 L L12B i-VTEC  petrol
  • 1.3 L L13B Earth Dreams i-DTEC
  • 1.5 L L15A (petrol)
  • 1.5 L L15B1 (petrol)
  • 1.5 L L15B Earth Dreams i-DTEC
  • 1.5 L i-DTEC diesel

Mk 4 Jazz - Fit

From 2020 we see a new range released with extensive hybrid option to test market adaptation, with more engine options teased for later release.

  • 1.0 L P10A2 VTEC turbocharged
  • 1.5 L LEB-MMD Atkinson cycle Hybrid i-MMD (New Gen)

The following modifications and performance upgrades are usually installed by our members, decide how far you wish to go in your tuning project before you start.

Engine swaps have been done on the Jazz Fit models, here are the engines we've covered in detail but the larger ones are probably going to be impossible to fit in to the engine bay.

Getting the correct grade of sports parts for your planned usage of the car is essential. Stage 3 competition upgrades just don't work well on the road hard to control in slow traffic.

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

Typical stage 2 mods often include: Fast road cam, Ported and polished head, hihg flow fuel injector, Power/Sport clutch, fuel pump upgrades.

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

You should keep as much low end torque as possible and aim for a long power band across the rev range rather than a narrow top end power hike.

In this article we shall give a limited 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 bolt on motorsport upgrades goes on a NASP engine.

It maximises the intake and exhaust flow 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 competition cam as this affects the engines idling and general town driving characteristics.You will need to ensure that the engine is not starved of fuel so will need to uprate the fuelling.

If you find you get flat spots and power surges after your upgrades you should check the fuelling and try a higher octane fuel as well. To get sufficient fuel you may need to uprate the injectors on your 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.

Now we move on to the intake and exhaust and ensure proper flow through the engine.

Contrary to popular belief there is generally a small if any power gain to be had by fitting an induction kit, they only become beneficial and are recommended after you increase the engines power to the point where the standard air intake box cannot cope!

For most Jazz engines TorqueCars would suggest you just go with a washable panel air filter. On heavily tuned engines and turbo vehicles an induction kit will help release the power providing you address the problem of supplying cold air.

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

gas flowing the head will allow you to maximise your air/fuel charge. Leave this to a professional though with a proper flow bench and machine tools

In nearly all cases of Jazz tuning your clutch will start to slip and this should be improved - read our overview on clutches for more information. Remaps offer significant 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. The most significant power gains for NASP engines usually involve the addition of forced induction. Superchargers are generally easier to add than turbos. Turbos increase power in increasing proportion to increasing engine speed and this can make mapping difficult.

Superchargers, however will give a boost which is directly proportional to engine speed so is simpler.
Decreasing the engines compression ratio will allow you to add forced induction, water injection may also help prevent detonation.

Alloy wheel upgrades.

Alloy wheels can help the brake cooling and are usually less heavy than the steel ones. The drawback to large alloys on your Jazz is that you're changing your effective final drive ratio so this will have a negative effect on acceleration and performance.

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.

If you would like to know more, or just get some friendly advice on Tuning your car please join us in our car forums where you can discuss Jazz options in more detail
with our Jazz owners. It would also be worth reading our unbiased Honda 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. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these articles which are continually updated.

PLEASE HELP: I NEED YOUR DONATIONS TO COVER THE COSTS OF RUNNING THIS SITE AND KEEP IT RUNNING. I do not charge you to access this website and it saves most TorqueCars readers $100's each year - but we are NON PROFIT and not even covering our costs. To keep us running PLEASE Donate here

If you liked this page please share it with your friends, drop a link to it in your favourite forum or use the bookmarking options to save it to your social media profile.

Feedback

Please use our forums if you wish to ask a tuning question, and please note we do not sell parts or services, we are just an online magazine.

Help us improve, leave a suggestion or tip

Your Constructive comments on this article




One Response to “Honda Jazz/Fit Tuning”

  1. Djuneid says:

    What about adding supercharger to the 2015 honda fit hybrid (GP5) 135hp stock? I have been looking everywhere over the web but cant find anything about this option

Member Benefits

Join our forum today and benefit from over 300,000 posts on tuning styling and friendly car banter.

You will also have full access to the modifed car gallery, project car updates and exclusive member only areas.

(All car owners of all ages and from all countries are welcome).


Popular articles

Diesel tuning
ECU Remaps
Double declutch
Safety mods
Induction Kits
Customize a car
Chip tuning
Modified Car insurance
Track day insurance cover
Diesel Remaps
MPG calc
DPF cleaning


Low Profile Tires

Truth about low profile tires
Read more...

Gearboxes

Low ratio sport gearbox setup and selection.
Read more...

Carbon Fibre

Carbon fibre bonnets and body panels.
Read more...

Spray Painting

How to spray paint a car
Read more...

Nurburgring Times

Nurburgring times
Read more...

Diesel Hot Hatch

Diesels? On Torquecars, Really?
Read more...

MPG Calculator

MPG calculator UK miles per Gallon – calculate MPG
Read more...