5.8FL Advance Timing for more power

[Burns363R]

Sounds like volvo set base timing around 10 degrees. On these motors. Which is what Ford did on them back in the 90's as well. I had a 93 Bronco that had a 5.8 in it and I took the timing from 10 to 18 with no pre ignition or knock. It made a huge difference in power. So much so that it ran better with the timing and 33" tires than it did with stock timing and 31" tires.

Is there any draw back to advancing base timing as long as i keep knock down. Running premium fuel is a must i understand, but none the less, its free cheap HP that shouldn't hurt anything.

Just wanted to see what everyone elses's thoughts or experience has been.

 

[Scott Danforth]

your bronco wasnt under anywhere the load that your boat is putting on the motor. Did you take your bronco with a 10 ton trailer and try to drive up a 50 mile long hill in top gear? that is effectively what your boat motor is doing.

most I would possibly increase the advance to is 12 degrees, and that is with higher octane fuel.

Trust me when I say that Volvo set the timing there for a reason.

 

[Bondo]

Ayuh,.... I agree with Scott,.... Yer boat motor is under Full load, 99.9% of the time it's runnin',.....

With yer plan, I see yer boat motor, becomin' an Anchor in a very short time,.....

 

[mybadford]

What Scott said. I put a full MSD set up in mine and have toyed around with timing. I ended up topping out at 32* I cant remember what bushing I put in for the stop or what springs are in the advance. I'd have to look again. I know that the boat is well on plane before its at full advance. I think around 3500 is where full advance hits. I left my base timing at stock. I always run a non ethanol 91 octane fuel. Only 2 places in town that sells it.

 

[Burns363R]

You think that it will ruin the motor due to knock or what?

 

[Maclin]

Detonation will occur, may not be audible, causes internal hotspots and localized overheating. Valves take the brunt of the internal over-heating and will tulip, valve seats crack, and piston material can ball up from detonation and eventually "hole" a piston. Very common side effects of tuning to an Automotive duty cycle.