Compression?

**schrysler** · 07-02-2007, 02:34 PM

I Am Looking To Do A 383 Lunati Stroker For My Ls1 What Is The Deal With The Different Compresions For The Rotating Assembly? I Always Thought That It Was The Cam And Heads That Determined The Compression

**Mr. Luos** · 07-02-2007, 02:38 PM

Cam helps determine dynamic compression. How much compression gets 'bleeded' off because of the overlap.
Pistons and heads determine static compression. The cylinder compression without overlap.

**schrysler** · 07-02-2007, 02:43 PM

If I Am Doing A Forged Bottom End Will The Compression Matter? I Am Going To Do A Sts Kit On Top Of It All, Would It Need To Be The Lower 8:5 Or Could I Get More Hp From Doing 10:1 Comp Ratio?

**Mr. Luos** · 07-02-2007, 02:53 PM

I think your caps lock button might be on.

The STS system can't high really high boost numbers. 9:1-9.5:1 would be ideal I would think.
Probably get better answers in the forced induction section.