Unlike the INNOVA 3551 that supports only one cycle system, Actron CP7527 supports both 2 and 4-cycle systems. Taking the measurements of vacuum on vehicles powered by gasoline engines.Īctron CP7527 is a versatile timing light that supports many vehicles with conventional, electronic, computer-controlled, DIS, or 2-cycle ignition systems.Checking and measuring the centrifugal advance.It is a simple tool that you can use for the following purposes: It is a better choice than INNOVA 3551 because of its additional features and capabilities. INNOVA 3551Īctron CP7527 is also an inductive timing light. They cannot be the best for auto technicians needing more advanced tools. However, these timing lights have limited functions and capabilities. They can help you detect a no-spark condition, check for electronic advance or retard, check timing, among other capabilities. Inductive timing lights are efficient and affordable. INNOVA 3551 and Actron CP7527 are multifunctional timing lights that can help you diagnose many timing problems and find a solution. Otherwise, you won’t be able to properly adjust the firing of your engine. You need an MSD timing light if your vehicle is of this type. A standard inductive light cannot give an accurate timing because they randomly pick any spark out of the multiple ones produced. MSD timing lights are a type designed to help tune engines on cars with multiple spark distribution systems. They usually include a toggle button for that purpose. Most digital timing lights can show RPMs as high as 9,999 and current selection between 2 and 4 cycles. Digital timing lightĭigital timing lights feature microprocessor-controlled circuitry and LED or LCD display for easy reading of RPMs and selection of a degree.

Customer reviews can be helpful when looking for answers concerning accuracy. So, you need to check each and every product before buying. The accuracy of some adjustable timing lights in the market differs from brand to brand. An ordinary inductive timing light cannot do that when the engine speed increases and the distributor keeps changing position. That realigns the Top Dead Center ( TDC) mark on the balancer with the markings on the front cover. Adjustable/advance timing lightĪn adjustable or advance timing light uses a microprocessor to delay a strobe at a selected degree. Some timing lights under this category also have an in-built tachometer to monitor RPMs and a dwell meter that allows you to effectively monitor the time it takes to charge the coil. Another feature that we can mention is the button or knob used for adjusting the light to indicate different RPMs. This type of timing light can be used to tune the engine of two cycles and four-cycle motors. Inductive timing light features a non-adjustable Xenon light. The following are the popular timing light types you will find in the market today: Inductive timing light You need to know your engine specifications and choose the best product, considering its brightness, accuracy, durability, and reliability. However, different types in the market can be so confusing. 5 Best MSD timing light: MSD Ignition 8992Ī timing light is a crucial tool that every engine tuner should have.

Timing light with tachometer