- Do you need to run vacuum advance?
- What happens if ignition timing is too advanced?
- How do you set total timing?
- What happens when vacuum advance fails?
- What are the symptoms of bad timing?
- What will advancing the timing do?
- What is a locked out distributor?
- Where should I set the timing on my performance engine?
Do you need to run vacuum advance?
You need the vacuum advance for best performance at low throttle settings for the street as Barry said.
If you were running on a circle track or a drag strip there wouldn’t be a need for it because the mechanical advance would be doing the job..
What happens if ignition timing is too advanced?
If ignition timing is too far advanced, it will cause the fuel-and-air mixture to ignite too early in the combustion cycle. This can cause the amount of heat generated by the combustion process to increase and lead to overheating of the engine.
How do you set total timing?
How is it set?Determine your desired total timing. … Set your Timing Light to your desired total timing.Start the engine. … Rev the engine past the point where your mechanical advance is fully engaged. … Watch the timing mark on the harmonic balancer using the timing light.More items…•
What happens when vacuum advance fails?
Eventually the deterioration will reach the point that the vacuum advance no longer adjusts the timing, causing the vehicle to hesitate when the engine attempts to move the vehicle’s weight. In addition to this lack of power, a vacuum leak can also cause the engine to idle roughly or even stall.
What are the symptoms of bad timing?
Symptoms of a Bad or Failing Timing BeltYou Hear A Ticking Noise Coming From The Engine. … Your Car’s Engine Won’t Turn Over. … You Notice An Oil Leak Near The Motor. … You Experience Exhaust Issues. … Your Revs Start Acting Up.
What will advancing the timing do?
Advancing the timing means the plug fires earlier in the compression stroke (farther from TDC). Advance is required because the air/fuel mixture does not burn instantly. It takes time for the flame to ignite the all the mixture. However, if the timing is advanced too far, it will cause an Engine Knock.
What is a locked out distributor?
locked out. or. locked in.. it means that the distributor internal advance mechanism does not change / move the timing…
Where should I set the timing on my performance engine?
Most naturally aspirated engines like a total timing of 34 to 36 degrees BTDC, (Before Top Dead Center) AKA “Advance”. Nitrous and supercharged engines usually run less than that, unless you plan on blowing the heads off the engine or blowing holes through your pistons.