Performance exhaust systems for LS...
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Frequently Asked Questions
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Oztrack provides a wide range of services including tuning, performance upgrades, engine rebuilding, dyno tuning, pink slip safety inspections, and more.
Click here to check out all of our services.
Yes, Oztrack can tune a variety of car models and engine types, including LS engines, Holden Commodore HSV vehicles, Toyota Diesels, Ford XR6, XR6T, XR8, F6T, and Mustang, among others.
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The Mainline Pro-Hub dyno tuning utilises a specialised dyno system for accurate measurement and analysis of engine performance, enabling fine-tuning to optimise power delivery and overall engine performance.
Yes, Oztrack can increase the power and torque of your VT-VF V8 engine through various power upgrade packages tailored for different models, such as OZ340, OZ380, OZ500, and OZ540.
Custom tuning involves optimizing engine control parameters to enhance performance, drivability, and specific requirements.
Remote tuning allows tuning to be done remotely without the need to bring the vehicle to the workshop.
When we tune a LS V8 or VZ-VF V6 Commodore the fuel table is made accurate and when a car is at low loads when driven gently it is in a different part of the map than when its at full throttle. So the two aspects are independent of each other, no extra full throttle power can be given with a fuel economy tune and little if any extra fuel economy can be given above the way that we already tune the cars.
We tune the LS V8 within safe limits and when it leaves us it certainly will not have any knock apparent that could damage your engine and the air fuel ratios are in the right range. The tune is also setup so that it cannot change, so if it does start knocking or it is too lean something has changed. The car needs to stay on the fuel it was tuned with e.g. if tuned on 98 keep using 98 not 95 or 91.
Get it tweaked and checked if this happens because over time things will deteriorate on the car and the engine can start to misbehave. We see a myriad of slowly appearing problems eg fuel pumps rusting out, injectors getting dirty, catalytic converters blocking, spark plugs increasing in gap, spark plug leads perishing, engine oil being induced etc.
The only way the car can lose its tune is if it intentionally wiped by another tuner using EFILive or HPTuners or ourselves. Taking the battery lead off resets the system but does nothing to the tune settings.
When it comes to engine tuning, even within the same model, there can be significant variations in power, even among cars with identical modifications. Interestingly, vehicles that have been gently driven and have lower mileage tend to show the least power gains.
Here are some noticeable improvements you can expect:
- Enhanced throttle response
- Ability to engage high gears at lower speeds
- Increased power across all RPM ranges
- Improved fuel efficiency
While we could share the highest dyno numbers we’ve achieved, it’s important to note that the average power gains are often around 20 rwkw lower. We don’t typically perform before-and-after testing due to the time it consumes and the fact that the engine would be quite warm after the initial testing. Additionally, we’ve observed instances of competitors manipulating “before” results to make their “after” results appear more impressive. As a result, we’ve chosen not to engage in this practice to maintain fairness.
While power gains can vary, we’ve seen some remarkable outcomes:
- Certain vehicles have gained up to 30 rwkw through tuning alone.
- New HSV LS3 models often achieve a gain of 30 rwkw from tuning and OTR modifications, with an additional 20 rwkw from a full exhaust.
- LS1 engines typically experience gains that surpass these figures.
Yes we can tune all V6 Commodores now from Alloytec VZ through to the current VF LFX V6.
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The most common cause is the intake air temperature sensor is not plugged in or it has stopped working. The second most likely cause are blockages in the exhaust, start by having the catalytics converters inspected. Other things to have checked are air filter dirtiness or blockages – we once saw a car have a filter fall out of a cheap OTR. Check fuel injectors for equal flow or have them cleaned.
This is often caused by a sick O2 sensor. The fuel trims build to maximum and then reset to zero and this is causing the rhythmic change that you have observed. Get them replaced.
The throttle position sensor is faulty and is not consistently reporting zero % during a no throttle condition. This is important because the engine enters idle mode based on this signal. Often the faulty throttle position sensor will report above 1% and this makes the car never enter idle mode and the engine rpm will vary up and down called hunting or will stay constantly high. This most often occurs when the throttle body area is hot. The way to fix it is replacement of the sensor and sometimes also involves modifying the mechanism if the connection point is worn.
Remote tuning allows tuning to be done remotely without the need to bring the vehicle to the workshop.
The sounds you are likely hearing are pinging which is caused by the fuel igniting too early in the engines cycle. The engine has excessive timing advance for the fuel that is in it at the moment. The engines tune calibration either needs to be changed or the fuel octane needs to be increased. Sometimes this can happen because someone has put 91 octane or E10 in a car that is tuned for 98.
Drive the car gently and keep the engine load away from where it pings until it is fixed. This can hurt your engine so take care. Other causes of pinging to start happening when it wasn’t before are blocked catalytic converters or blocked exhaust, dirty injectors which can happen slowly over time, failing fuel pump and more.
Cam upgrades require more air at idle than standard. The tune needs to be adjusted along with increased air being provided through the throttle body blade by a hole being drilled in the blade or the existing hole enlarged. Bigger lumpier cams require the largest holes. Take care when doing this because if the hole drilled is too big it may not be possible to have low enough rpm in coasting conditions without blocking up the hole and starting again.
The car needs to switch between coast spark advance table and drive spark advance tables. This switching is decided by throttle position. This needs to be fixed in the tune and this is assuming that the Air Fuel Ratios are good at low load.
Edit Content
Yes, Oztrack offers engine rebuilding services, which involve disassembling, inspecting, cleaning, and replacing worn-out or damaged components to restore engine performance.
Supercharger installation by Oztrack involves adding a forced induction system to the engine, significantly increasing power output by compressing air into the engine for improved performance.
Yes, Oztrack offers Mantic clutch upgrades for a range of vehicles, including Ford, Holden, and other models.
Upgrading the clutch system improves power transmission and handling, particularly for high-performance applications.
Cam upgrades for LS engines involve replacing the camshaft to improve power and performance characteristics.
They can optimise valve timing and lift, resulting in increased power and torque.
Edit Content
Getting a Pink Slip safety inspection from Oztrack ensures your vehicle’s roadworthiness and compliance with safety standards, providing peace of mind and ensuring safety on the road.
Do you have any questions?
Frequently Asked Questions
Edit Content
Oztrack provides a wide range of services including tuning, performance upgrades, engine rebuilding, dyno tuning, pink slip safety inspections, and more.
Click here to check out all of our services.
Yes, Oztrack can tune a variety of car models and engine types, including LS engines, Holden Commodore HSV vehicles, Toyota Diesels, Ford XR6, XR6T, XR8, F6T, and Mustang, among others.
Edit Content
The Mainline Pro-Hub dyno tuning utilises a specialised dyno system for accurate measurement and analysis of engine performance, enabling fine-tuning to optimise power delivery and overall engine performance.
Yes, Oztrack can increase the power and torque of your VT-VF V8 engine through various power upgrade packages tailored for different models, such as OZ340, OZ380, OZ500, and OZ540.
Custom tuning involves optimizing engine control parameters to enhance performance, drivability, and specific requirements.
Remote tuning allows tuning to be done remotely without the need to bring the vehicle to the workshop.
When we tune a LS V8 or VZ-VF V6 Commodore the fuel table is made accurate and when a car is at low loads when driven gently it is in a different part of the map than when its at full throttle. So the two aspects are independent of each other, no extra full throttle power can be given with a fuel economy tune and little if any extra fuel economy can be given above the way that we already tune the cars.
We tune the LS V8 within safe limits and when it leaves us it certainly will not have any knock apparent that could damage your engine and the air fuel ratios are in the right range. The tune is also setup so that it cannot change, so if it does start knocking or it is too lean something has changed. The car needs to stay on the fuel it was tuned with e.g. if tuned on 98 keep using 98 not 95 or 91.
Get it tweaked and checked if this happens because over time things will deteriorate on the car and the engine can start to misbehave. We see a myriad of slowly appearing problems eg fuel pumps rusting out, injectors getting dirty, catalytic converters blocking, spark plugs increasing in gap, spark plug leads perishing, engine oil being induced etc.
The only way the car can lose its tune is if it intentionally wiped by another tuner using EFILive or HPTuners or ourselves. Taking the battery lead off resets the system but does nothing to the tune settings.
When it comes to engine tuning, even within the same model, there can be significant variations in power, even among cars with identical modifications. Interestingly, vehicles that have been gently driven and have lower mileage tend to show the least power gains.
Here are some noticeable improvements you can expect:
- Enhanced throttle response
- Ability to engage high gears at lower speeds
- Increased power across all RPM ranges
- Improved fuel efficiency
While we could share the highest dyno numbers we’ve achieved, it’s important to note that the average power gains are often around 20 rwkw lower. We don’t typically perform before-and-after testing due to the time it consumes and the fact that the engine would be quite warm after the initial testing. Additionally, we’ve observed instances of competitors manipulating “before” results to make their “after” results appear more impressive. As a result, we’ve chosen not to engage in this practice to maintain fairness.
While power gains can vary, we’ve seen some remarkable outcomes:
- Certain vehicles have gained up to 30 rwkw through tuning alone.
- New HSV LS3 models often achieve a gain of 30 rwkw from tuning and OTR modifications, with an additional 20 rwkw from a full exhaust.
- LS1 engines typically experience gains that surpass these figures.
Yes we can tune all V6 Commodores now from Alloytec VZ through to the current VF LFX V6.
Edit Content
The most common cause is the intake air temperature sensor is not plugged in or it has stopped working. The second most likely cause are blockages in the exhaust, start by having the catalytics converters inspected. Other things to have checked are air filter dirtiness or blockages – we once saw a car have a filter fall out of a cheap OTR. Check fuel injectors for equal flow or have them cleaned.
This is often caused by a sick O2 sensor. The fuel trims build to maximum and then reset to zero and this is causing the rhythmic change that you have observed. Get them replaced.
The throttle position sensor is faulty and is not consistently reporting zero % during a no throttle condition. This is important because the engine enters idle mode based on this signal. Often the faulty throttle position sensor will report above 1% and this makes the car never enter idle mode and the engine rpm will vary up and down called hunting or will stay constantly high. This most often occurs when the throttle body area is hot. The way to fix it is replacement of the sensor and sometimes also involves modifying the mechanism if the connection point is worn.
Remote tuning allows tuning to be done remotely without the need to bring the vehicle to the workshop.
The sounds you are likely hearing are pinging which is caused by the fuel igniting too early in the engines cycle. The engine has excessive timing advance for the fuel that is in it at the moment. The engines tune calibration either needs to be changed or the fuel octane needs to be increased. Sometimes this can happen because someone has put 91 octane or E10 in a car that is tuned for 98.
Drive the car gently and keep the engine load away from where it pings until it is fixed. This can hurt your engine so take care. Other causes of pinging to start happening when it wasn’t before are blocked catalytic converters or blocked exhaust, dirty injectors which can happen slowly over time, failing fuel pump and more.
Cam upgrades require more air at idle than standard. The tune needs to be adjusted along with increased air being provided through the throttle body blade by a hole being drilled in the blade or the existing hole enlarged. Bigger lumpier cams require the largest holes. Take care when doing this because if the hole drilled is too big it may not be possible to have low enough rpm in coasting conditions without blocking up the hole and starting again.
The car needs to switch between coast spark advance table and drive spark advance tables. This switching is decided by throttle position. This needs to be fixed in the tune and this is assuming that the Air Fuel Ratios are good at low load.
Edit Content
Yes, Oztrack offers engine rebuilding services, which involve disassembling, inspecting, cleaning, and replacing worn-out or damaged components to restore engine performance.
Supercharger installation by Oztrack involves adding a forced induction system to the engine, significantly increasing power output by compressing air into the engine for improved performance.
Yes, Oztrack offers Mantic clutch upgrades for a range of vehicles, including Ford, Holden, and other models.
Upgrading the clutch system improves power transmission and handling, particularly for high-performance applications.
Cam upgrades for LS engines involve replacing the camshaft to improve power and performance characteristics.
They can optimise valve timing and lift, resulting in increased power and torque.
Edit Content
Getting a Pink Slip safety inspection from Oztrack ensures your vehicle’s roadworthiness and compliance with safety standards, providing peace of mind and ensuring safety on the road.
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