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Re: Turbo Cool Down
That's going to cool Your exhaust gases but what about the rest of Your engine? In a gasoline powered engine at a substantial load, say only pulling 2-3 inches of vacuum the exhaust valves run about orange hot... but because they're a high nickel content alloy they survive. Plus most engines today use induction hardened valve seats to tolerate no-lead gasoline. A turbo-diesel will see almost as high of temps under load.... so Your exh. gas is 300-350 but Your valves, turbo, piston tops, etc. are still VERY hot. What are We actually trying to cool here? [img]/ubbthreads/images/graemlins/shrug.gif[/img]
The Owner's manuals say three to five minutes, and I wait at least that long....but then My commute is almost an hour at 70-80 mph.... My little commuter car is a turbo-gasoline and all aluminum with full synthetic oil so I don't let it cool as much as I let My PSD....
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Denny
'96 F-250 Reg. Cab 4X4 5-sp POWERSTROKE
298,500 mi & NO Problems, LUK Clutch
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