pinging

[sg11]

Originally Posted by why?

Because they want the Si to have more power. Compression Ratio is only one small puzzle piece to what goes into an engine. With today's modern technology engines can both be monitored much more closely, and controlled much more easily.

A real way to know how reliable these cars is to go into the forced induction section and find out how many of those peep's have lowered their compression ratio.

That was something that used to be an absolutely must do.

Hmmm. I thought it was because it HAD to run on premium due to the higher compression and that the more you compress the air and gas the more likely it is to pre- ignite thus requiring a fuel with a higher ignition point?

And as far as reliability and forced induction, did you mean to say they haven't lowered their compression ratio?