Originally Posted by willwren
To clarify a couple points here, your water/coolant won't boil at 212°. It'* a sealed, pressurized system.
(and about 20-25 more horsepower)
I'm not talking about your coolant, why would you want that to boil???? Straight water won't boil in a 15psi system until 257*F, coolant which has a higher boiling point is around 280* or so. What I'm talking about is water that has gotten into your crankcase. This could be fuel from blowby, condensation, coolant that leaked in there from some sort of a leak, or any other way that water could get into the crankcase. It happens over time, and you want your engine to reach over 212* occasionally to boil this water. Water in the crankcase means no more bearings if there is enough. If it doesn't boil its probably not a big deal, especially if you change your oil often because a healthy engine should have very little water in there, however its still not a bad idea to let it heat up from time to time.
1990 Maroon Grand Prix STE McLaren 3.1 Intercooled Turbo, 14.695 @ 94.49 on 12psi before cam/heads/etc.
1990 Bright Red Grand Prix McLaren 3.1 Intercooled Turbo, 14.819 @ 92.72, 189whp
1999 Grand Prix GT 9.75:1|K&N|160 tstat|No Ubend/Cat/Res|UD Pulleys|Ported M90/TB/Heads|XPZ|2.55"|Pacesetters|Stage 2 I/C. 12.442 @ 112.78
2000 Blue Bonneville SSEi Supercharged Gutted Airbox|K&N|3.4"|1.9'*|WP Pulley|Custom DHP|180*stat|41932'*|No Cat. 14.681 @ 94.80
2002 Dark Cherry Grand Prix GTP Supercharged & Intercooled
12.084 @ 114.38 w/1.743 60', 315.6whp, Fastest Stock Cam M90 GTP!
NOW XP CAMMED, 340.6whp with XP, stock heads, Gen 3 M90, 11.984 @ 115.84 w/1.750 60'!
Most HP Stock Heads Gen 3 M90 GTP!
2004 Red Monte SS Supercharged K&N|3.4 Pulley|1.9'*|180*stat|41919 plugs|3" dp|No cat/ubend|DHP|Shift Kit. 14.2 @ 98
GOT BOOST??? Friends dont let friends drive stock!