Ramp up your VDub's acceleration with an ACT ProLite Flywheel.

• Recommended for Track and Road Race Use
• Servicable - Can be resurfaced with no need to purchase additional parts
• Chrome-Moly Forgings are Three Times More Rigid than Aluminum
• Quick throttle response and acceleration
• Lightest and lowest inertia
• Slightly reduced drivability

Note      : Weight 9 lbs Notes Prolite Flywheel       600250

ACT XACT ProLite Flywheels will provide your VDub with improved engine response, acceleration and a higher degree of safety than the heavy stock flywheel.  Many competitor flywheels are light, fragile and expensive, and not worth the money.  ACT offers what you need when you want to upgrade your VDub's flywheel - a high-performance light solution that provides the best drivability response.  

All XACT ProLite Flywheels are true one-piece designs CNC machined from forged Chrome-moly which is stronger and more durable than billet steel or aluminum.  Recommended when upgrading your stock clutch to the ACT performance clutch system.

ACT manufactures their flywheels using high-tech CNC equipment and computer balancing to offer better reliability and smooth operation at high RPMs. ACT engineers put a significant amount of time into research to strategically slot XACT ProLite flywheels to lower inertia without sacrificing strength and heat dissipation.

How does a lightweight flywheel work on your VW?  Amongst the majority, there are two schools of thought concerning light flywheels. The first is that they do not contribute to power output. The second is that they do. Which thought is correct? In fact both, in a way, are correct.

If we measured the power output of an engine first with light flywheel and then again with the standard part on an engine dyno, no change in power will be seen to occur. At first it appears that the light flywheel has done nothing and was a total waste of cash. This is not the case. A dyno that shows max power at constant revs does not demonstrate what happens to an engine's power output in real life situations - like acceleration. If an engine is accelerated on a dyno (we are talking about a rate of around 2000rpm a second ) it would show a power output of around 20%-25% less than at the constant rev state.

The reason for this is that when accelerating a vehicle the engine not only has to push the total mass of the car but the internal components of the engine need to be accelerated also. This tends to absorb more power as the extra power is used accelerating the internal mass of the engine components and is why a motor accelerating on a dyno will produce less power than at constant revs. Also it must be remembered that the rate of acceleration on the engine internals is much greater that the rest of the car. This would then suggest that by lightening the flywheel, less power would be required to accelerate it and therefore more power would be available to push the car along.

Now, it may seen unbelievable that by removing a few pounds from the flywheel a noticeable difference to a 3000lb+ car's acceleration will be made. In fact the difference is quite noticeable and the secret behind this is hidden within the gearbox. Everyone knows that cars accelerate at a greater rate in low gears, this is because a car's gear box basically a mechanical lever and just like when using a leaver to lift a heavy object, the gearbox reduces the mass of the car that the engine sees. For example, in first gear an engine will see the car's mass as only around say 250lbs but the engine internal mass would still remain around 45lbs.