Volvo B6244FS Tuning

"All you need to know about performance tuning the Volvo B6244FS engine!"

Here we examine B6244FS tuning and highlight the greatest modifications for your car.

Volvo B6244FS provide a fun base for your project and with the best motorsport upgrades like a remap, turbo improvements and camshafts you will really enhance your driving fun.

History, Power & Specs of the B6244FS Engine

163 PS (120 kW; 161 hp) at 5800 rpm with 220 Nm (160 lbft) of torque at 4400 rpm.

Applications:

  • 1995–1997 Volvo 960 2.4 24V
  • 1997–1998 Volvo S90 2.4 24V
  • 1997–1998 Volvo V90 2.4 24V

Tuning the Volvo B6244FS and best B6244FS performance parts.

Best B6244FS upgrades

Just because particular upgrades are appear in lots of B6244FS projects it doesn't mean its worth having, instead we'll concentrate on the top upgrades that will give your B6244FS the biggest power gain return for your cash.

Altering your B6244FS cam will make a dramatic difference to the engine torque. Choosing a higher performance cam profile raises the torque accordingly.

Fast road camshafts normally boost the performance across the rev range, you may sacrifice a little low down bhp but the high end rpm power will improve.

Motorsport camshafts, boost the high end rpm power band but as a result the car will not idle smoothly and low end power nearly always suffers.

On a daily driver should ideally to optimize your power band to your typical driving style.

You will never have ever asserted that a B6244FS Competition camshaft is a pleasure to live with when driving around busy urban areas. This is because a competition cam causes a very lumpy idle, and makes the car more prone to stall or jerk along in stop start traffic, sadly though many ignore this and end up ruining a perfectly good car and having to revert back to a fast road, or OEM cam profile.

Each engine responds better to extreme camshaft durations than others.

The ecu map and fuel pump and injectors also have an effect on the torque gains you'll achieve.

A longer valve duration can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations.

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Best Engine Mods for your car

  1. Engine Tunes - engine tuning/remapping provides the most advantage in terms of cost savings,  aftermarket ECUs, and piggyback ECUs are all alternatives.
  2. Fast road cams are one of the most significant mechanical changes, but they must be installed by someone who knows what they're doing and they are not always easy to source but you might find a local firm to regrind a stock camshaft.
  3. Intake and Exhaust - Note that on their own these mods will NOT ADD POWER in most cases, but they can help enhance power after other mods by removing the restriction.
  4. Upgrades to turbochargers and superchargers - forced induction is the most efficient approach to increase air supply, allowing you to burn more fuel and make more power. It is one of the most costly upgrades but provides the best gains.
  5. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence.
  6. Typical stage 1 mods often include:
    Fast road camshaft, Intake manifolds, Panel air filters, Remaps/piggy back ECU, Sports exhaust header/manifold, drilled & smoothed airbox.

    Typical stage 2 mods often include:
    Sports catalyst & performance exhaust, induction kit, high flow fuel injectors, fuel pump upgrades, Ported and polished head, Fast road cam.

    Typical stage 3 mods often include:
    Adding or Upgrading forced induction (turbo/supercharger), Twin charging conversions, Competition cam, Engine balancing & blueprinting, Internal engine upgrades (head flowing porting/bigger valves), Crank and Piston upgrades to alter compression.

    The B6244FS engines are great to work on and we see that there is an increase of upgrades and performance parts around.

    ECU flashing helps unlock the full potential of all the upgrades you've done to your B6244FS.

    (In some cases, as the factory ECU is locked flashing is not an option, so an aftermarket ECU is the route to take, and many of these will outperform factory ECU's but make sure it has knock protection and that you get it setup properly.)

    It will usually give you around 30% more power on turbocharged vehicles and you can expect to see around 15% on NA (naturally aspirated) engines, but the end result may differs on the upgrades you've done and the condition of your engine.

    Feeding air into your B6244FS is the aim to any engine upgrade project.

    The intake plenum take the air from the filter and allow it to be sucked into the engine cylinders.

    The bore size, shape and flow rate of the Intake manifold can make a big difference to fuel engine efficiency on the B6244FS.

    Most intake manifold are in dire need of a performance upgrade, although some OEM provide well optimised intake manifold.

    Adding a B6244FS larger valve kit, carrying out 3 or 5 angle valve jobs and porting and head flowing will also lift bhp, and as an added benefit will afford you increasing the bhp increase on other mods.

    B6244FS Turbo upgrades

    NA (naturally aspirated) engines need quite a lot of work when you add a turbo, so we have a separate guide to help you take into account the pros and cons of going this route on your B6244FS

    The more air you can get into an engine, the more fuel it can burn and uprating the induction with a turbocharger upgrade makes superb power gains.

    If an engine is turbocharged, tuning mods are going to make more power and you'll see that turbo charged engines are built using strengthened components.

    There are tuning limits for every engine, with some being incredibly solid and some just sufficiently able to handle stock powerSee where you'll find these restrictions and install better quality crank and pistons to cope with the power.

    It's not unheard of tuners spending a lot of money on turbo charger upgrades on the B6244FS only to watch the car go up in smoke just after it's first rolling road session.

    Big capacity turbo units tend to experience a bottom end lag, and little turbo units spool up really quickly but won't have the top end torque gains.

    In recent times the selection of turbos is always evolving and we commonly find variable vane turbos, where the vane angle is altered according to speed to lower lag and increase top end power.

    Twin scroll turbos divert the exhaust flow into two channels and feed these at differently profiled vanes in the turbo charger. They also boost the scavenging effect of the engine.

    You'll commonly see there is a restriction in the air flow sensor (AFM/MAF/MAP) on the B6244FS when considerably more air is being drawn into the engine.

    We see 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor sapped bhp at a much lower level.

    Adding a supercharger or additional turbo will make large power gains, although harder to configure. We have this feature on twinchargers if you want to read more.

    Fuelling

    You will need to ensure that the engine is not starved of fuel so will need to increase the fuelling when you start extending past 20% of a power increase.We strongly recommend you to be generous with your injector capacity.

    The accepted safe increase is to add 20% capacity when buying an injector, this takes into account injector deterioration and gives a bit of spare capacity should the engine require more fuel.

    We think this one is common sense, but you'll need to match your fuel injector to the type of fuel your car uses as well.

    All the following flywheel power targets will assume an injector duty cycle of 80% and a base of 58psi of fuel pressure at idle.

    4 Cylinder turbocharged engines

    • 58 PSI 340cc/min 200hp
    • 58 PSI 511cc/min 300hp
    • 58 PSI 682cc/min 400hp
    • 58 PSI 1022cc/min 600hp

    5 Cylinder turbocharged engines

    • 58 PSI 273cc/min 200hp
    • 58 PSI 409cc/min 300hp
    • 58 PSI 545cc/min 400hp
    • 58 PSI 818cc/min 600hp

    4 Cylinder NA (naturally aspirated) engines

    • 58 PSI 285cc/min 200hp
    • 58 PSI 426cc/min 300hp
    • 58 PSI 568cc/min 400hp
    • 58 PSI 853cc/min 600hp

    4 Cylinder supercharged engines

    • 58 PSI 312cc/min 200hp
    • 58 PSI 468cc/min 300hp
    • 58 PSI 625cc/min 400hp
    • 58 PSI 937cc/min 600hp

    B6244FS Performance Exhausts

    You may need to replace your exhaust if your exhaust is creating a restriction.

    On most factory exhausts you should find that your flow rate is good even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust.

    Sports exhausts can help increase the flow of air through the engine.

    But if the exhaust pipe is too large, ie: over 2.5 inches bore, you will lose a great deal of the flow rate and end up losing power and torque.

    Common exhaust restrictions can be traced to the filters installed, so adding a freer flowing high performance aftermarket one will improve air flow, and rather than doing an illegal decat, will keep the car road legal.

    Weak spots, Issues & problem areas on the B6244FS

    The B6244FS engines are generally reliable and solid units, as long as you follow the manufacturers service schedules, and use a good quality oil to ensure longevity. Few problems should happen as long as they are regularly serviced and maintained.

    Carbon build up in the head, particularly around the valves which will sap power or create flat spots, this is a larger issue on direct injection engines but should be looked out for on all engines. We have tips on removing carbon build up.

    Some of our members have had issues with flat spots or glitches after applying mods and upgrades or tuning, this is not usually related to this engines design, so instead see our article on diagnosing flat spots and problems after tuning which should help you get the bottom of this issue.

    Regular oil changes are vital on the B6244FS, especially when tuned and will help extend the life and reliability of the engine.

    If you would like to know more, or just get some friendly advice on Tuning your B6244FS engine please join us in our car forums where you can discuss B6244FS tuning options in more detail with our B6244FS owners. It would also be worth reading our unbiased Volvo tuning articles to get insights into each modification and how effective they will be for your car.

    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 tuning mods work best for you on your car. Which helps us keep our guides and tips up to date helping others with their modified car projects. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these B6244FS tuning guides which get regular updates and revisions.

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