[s-cars] Detonation - I think

[Rich Assarabowski]

Rich:

Is it at any particular RPM (like 1800 in 5th and 2200 in 4th)?  Are the
heat shields on your downpipes still intact or have they already fallen
off?

-- Rich A.

>I am getting a rattling sound like dried peas being poured onto the
floor - when there is some load on the engine (4th and >5th gears, from
half to WO throttle). If I back off throttle, the sound disappears. As
long as I use a light foot, there
>is no rattling sound. This is a first for me but it sounds like the way
I have heard detonation described.