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The compression ratio is not increased until the turbo or supercharger is on boost, and that is after the engine starts.
In many cases the C/R is lowered for a turbo or S/C application (new pistons or headwork) making the engine easier to turn over.
In short, you don't need to upgrade your battery.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Last edited by RarlyL8; 08-19-2006 at 08:46 AM..
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