Dave can we get your opinion on the MAJOR cause of pinging on
the 5.2L and 5.9L Magnum engines? CC to hot for emissions sake?
Thanks
GS -
Dave Scelfo wrote:
If you have spark knock, you need higher octane.
> Any of the above mentioned modifications would result in knock if you used
> 87 octane. I think we're on the same page Bernd, but I'm not sure if we're
> arguing or reassuring each other ;)
> For anyone whose lost, knock, pinging, detonation, whatever you want to
> call it, is the result of the intake charge (air fuel mixture) igniting
> before its supposed to. This can happen because:
> A: its squeezed too much
> b: its too hot the CC (overall)
> c: hot spots in the CC
> The higher octane gas is HARDER to burn and therefor makes it harder for
> these conditions to ignite the intake charge. If you make it harder to
> ignite the intake charge on an engine that can't (maybe) ignite the intake
> charge, you're going to get buildups. Thats my story and I'm sticking to
> it.
>
> --
> Dave
>
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:46:44 EDT