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Dave R · 03-23-2010, 07:29 AM

I'm pretty sure that above a certain HP range, CAT puts 4 turbos on the C32.

My gut says they'd have to modify the cooling and oiling systems on the high HP engines, just to keep them cool. You can't run a 1900 HP cooling system on a 600 HP engine or it'll never get to the corrrect operating temperature and that hurts longevity more than higher turbo pressure or RPM. I think it would be safe to assume they'd use different pistons and valves in the high HP variants, and you can be sure the fuel system is different. I bet the rods, crank and block are the same.

03-23-2010, 07:29 AM	#20
Dave R Senior Member Join Date: Jul 2004 Posts: 2,984 Thanks: 246 Thanked 743 Times in 443 Posts	I'm pretty sure that above a certain HP range, CAT puts 4 turbos on the C32. My gut says they'd have to modify the cooling and oiling systems on the high HP engines, just to keep them cool. You can't run a 1900 HP cooling system on a 600 HP engine or it'll never get to the corrrect operating temperature and that hurts longevity more than higher turbo pressure or RPM. I think it would be safe to assume they'd use different pistons and valves in the high HP variants, and you can be sure the fuel system is different. I bet the rods, crank and block are the same.