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Why does the piston to head clearance decrease with heat?
As I was pondering, if you have a steel crank and steel connecting rods, why on a 911 engine does the piston to head clearance decrease with heat?
You'd think the cases are growing, the cylinders are growing, and they would expand farther than the rod and crankshaft made of steel radially.
Sorry, too much caffeine and my mind started wandering..... 
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont replica Speedlines (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel
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