The LS2 power trains respond well to upgrades and we're pleased to see that there are increasing numbers of modifications and performance parts about.ĮCU flashing should help to unlock the full potential of all the parts you've fitted to your LS2. Typical stage 3 mods often include: Competition cam, Engine balancing & blueprinting, Crank and Piston upgrades to alter compression, Internal engine upgrades (head flowing porting/bigger valves), Twin charging conversions, Adding or Upgrading forced induction (turbo/supercharger). Typical stage 2 mods often include: Sports catalyst & performance exhaust, fuel pump upgrades, Ported and polished head, induction kit, high flow fuel injectors, Fast road cam. Typical stage 1 mods often include: Remaps/piggy back ECU, Fast road camshaft, Panel air filters, Intake manifolds, Sports exhaust header/manifold, drilled & smoothed airbox. Head work - The goals of porting and flowing the head are to get air flowing into the engine while removing flow restrictions and turbulence.It is one of the most costly upgrades but provides the best gains. 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.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.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.Mapping - remapping provides the most advantage in terms of cost savings, aftermarket ECUs, and piggyback ECUs are all alternatives.Be sure to keep up with our latest YouTube content and subscribe. Please watch our video which covers the 5 principles of tuning your car. Longer valve durations can alter the bhp 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. The ECU mapping and fuel pump and injectors also will say much on the bhp gains you'll make. 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.Įach engine responds better to mild cam durations so set your engine up on a rolling road. I'd be amazed if you have found a Competition cam is a pleasure to live with when driving around busy urban areas. On a car driven daily, really you should, ideally aim to match your power band to your driving style. Motorsport cams, bump the top end band but as a result the car will not idle smoothly and low end power nearly always suffers. Choosing a higher performance camshaft profile raises the torque accordingly.įast road cams normally bump the power through the rev range, you might lose a little low end power but top end will be higher. Instead of us falling into the common trap of the "if it's shiny and makes more noise it must be good" mentality of many car sites and tuning magazineĪltering your LS2 camshaft will make a dramatic difference to the engine torque. When talking about the best best for your LS2 engine, we are going to concentrate on the modifications that give the best power gain for you spend. GM LS2 great bases for a tuning project and with a few sensible modified mods like a remap, turbo upgrades and camshafts you will dramatically maximize your driving experience. We outline options for your LS2 tuning and summarise the best modifications. "All you need to know about tuning and performance parts on the GM LS2 engine!" Tuning the GM LS2 and best LS2 performance parts.
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