how far is too far for advancing timing?

[vrocious]

checked out the timing finally in the 280, they are supposed to run 6 stock but turns out it was set to 14deg. Still felt sluggish, currently running 98 due to the cheap price of fuel. Anyhoo even on crappy caltex 98 i bumped it up to 20ish. No ping up to 6500 or under load, definitely noted a difference and also pops flames on redline shifts. If it doesnt ping is there any issue i need to be concerned with?

[mc68]

how are you 100% sure its not detonating?

[BOSS 290]

When the rods come out of the block you know you've advanced ingition timing too much.

[yeahlow34]

how are you 100% sure its not detonating?

Agreed, detonation may not always be audible. I'd assume it's not running any sort of knock sensor also...

Very hard to say 100% whether there is detonation or not.

I wouldn't worry if it was an RB...they love timing.

[vrocious]

not an rb but an l28

only going off audible, what else do i look out for then besides entering the space race for australia with my pistons

[joshg123]

On an old school motor, just advance it till she pings on the preffered choice of fuel and then back it off a tad untill ping goes away.

Never have a problem

[Denver]

if you pull the plugs out of each cyl, have a look for small bits of ally on them, thats usually a good sgn shes detonating...

however if shes popping flame, it might be rich enough to deal with it, plug colour can also give you a measure of this...

[TJ]

Whatever S. Thomas says is fine minus 30%

[RRob]

What is PING???

[BOSS 290]

What is PING???

PING is power!

[XF Falcon]

it happens when you say the word c u n t on here

pingpingpingping

^ see !! :)

[TJ]

yeah cos ping is a kunt of thing!

[Milhouse]

audible ping = max power

[Fryman]

audible ping = max power


in a 4 stroke motor

quoted for the trueth