What makes our Digital Vacuum Gauge the Best?Quick Answer: Digital Technology
Long Answer: See Below...
Old-School analog mechanical and liquid column (manometer) vacuum gauges are very rough measurement tools. It is similar to using a 100-lb torque wrench to tighten a tiny screw. You can use it and it'll get you in the ballpark, but you will never get it dead-on accurate.
This images shows vacuum cycles from a running engine with the intake stroke circled for reference.
This pulsing signal is what drives mechanical and fluid vacuum gauges crazy!
Each intake stroke causes a rise in engine vacuum. After each intake stroke, the vacuum slowly drops during compression, power, and exhaust (3 strokes).
ONLY the intake stroke should be considered when synchronizing carburetors or throttle bodies! The Digi Sync does just that while mechanical and fluid gauges are mislead by the entire signal.
When the entire signal is utilized, a false-average signal is the result that is strongly influenced by the vacuum that remains after the intake stroke is complete.
This is one area where The Digi Sync shines! See below.
Our digital carb sync tool uses modern technology to analyze only the intake stroke from start to finish. This makes it a true "Digital Peaking Manometer".
As a bonus, the software can also count the pulses to calculate a precise RPM making The Digi Sync a highly accurate Digital Tachometer.
Please Note: This feature is designed for engines with only one carburetor (or throttle body) per cylinder. If more than one piston is connected to the same carb, the RPM displayed must be interpreted differently.
A common myth is that carburetor synchronization only affects the engine at idle with Constant Velocity (CV) carbs because they sync themselves. This is very misleading!
The truth is that CV carbs sync themselves only at Wide-Open-Throttle. I know you like to claim that's how you ride all the time, but is it really..?
Synchronization on CV carbs has a huge impact while cruising between 0 and 70 mph.
We've used our highly accurate digital carb sync tool to prove it! The results are shown on these two graphs.
The high-end industrial grade digital sensors used in The Digi Sync are highly accurate within 0.1 inHg (3.8 mBar) which significantly exceeds the specs listed in your repair manual!!
Simply put, The Digi Sync redefines engine vacuum gauges AND IS THE NEW STANDARD FOR CARB Sychronizers and throttle body balancers!