[TR] [6pack] Compression boost

[Randall]

> I plan on taking my TR engine up to 9.5:1 based on the fact 
> that my Miata runs on regular with that compression ratio - 

Well, don't be too surprised if it works out differently on your TR6.
There's a lot more to octane requirement besides compression ratio;
including combustion chamber shape and even head material (aluminum heads
like the Miata can take more compression).

Randall