Advancing IP timing Pros-Cons

[SolarSteve]

I am close to installed my new to me head on my 1.6 hydro motor and in the past I have set the timing to the factory (Bentley) specs.  I read in the FAQ section that some advance the timing to  .95 to 1.00 for a N/A motor.  I know I don't want too much advance, but what does advancing the timing more than stock do for me? And why would I want to go more than stock?

Thanks

[maxfax]

The idea behind the timing advance is better throttle response and power, I've heard it'll help economy too, can;t verifty that..     

Since you are burning wvo it would be more advantagous for you..   WVO burns a bit slower than diesel, injecting it slightly sooner gives it a bit more time to burn more completely getting the most out of it..  I've often thought it would be nice to have a way to advance and retard the timing on the fly ( other than the cold start)  On wvo my car runs great a about 1.05mm but on diesel it's a bit too clattery for my liking...


I think I made some sense there, please correct me otherwise...

[SolarSteve]

Is yours a turbo or N/A?

I just checked my timing today and it was .038"  which is more than .90 mm.  I believe .035" is .90mm.  I think I could bump it up a little, but I have to get the damned thing running first.  See my swapped head no start thread...

[maxfax]

Mine's a N/A..  In the MK1 bentley they list an improved performance setting of .98MM

[molgrips]

You could advance timing on the fly by increasing the pump internal pressure.  To do this you could drill out the small hole in the out banjo bolt on the pump, then you could have the fuel exit routed through a needle valve that was connected to some kind of actuator you could control from the dash.  Sorted.