HP/Torque

[FredMW]

Advancing your timeing gives you more bottom end and less top end. Does it actually affect HP and Torgue or are you just changing the power curve?

[!TWISTER!]

To make a short story, nothing to do, it's to adapte you're engine to the new specification. To have the best out of you're mods. With the porting, generally, because you're timming area and port angle changed, you need to adjuste the timming plate.

Edited April 18, 2007 by !TWISTER!

[blowit]

To make a short story, nothing to do, it's to adapte you're engine to the new specification. To have the best out of you're mods. With the porting, generally, because you're timming area and port angle changed, you need to adjuste the timming plate.

 

 

Yes, both HP and torque are increased by advancing timing. The port timing is not relative. What is relative is the rod angle vs ignition timing. Or as most people look at it, degrees of crankshaft rotation. By comparing rod angles and timing, you can determine when rapid bearing wear might occur As well as detonation. There are many factors in the timing game but mostly, you would push the ignition right up to the point of detonation and thats it.

 

The reasons for different timing with different fuels has to do with a given fuel's flash point and burn rate. Higher octane fuels need more advancement . Alky requires more advance than about any fuel.

 

The reason a fuel detonates under high ignition advance is due to you basically starting the fire early enough that the piston has to force through the counter acting force of the ignited gases, resulting in very high combustion pressures causing spontaneous combustion in the form of multiple flame fronts. This is called also called knock. Knock is BAD!

 

Brandon

[FredMW]

Thanks for the info