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dongoesby · 10-30-2009, 02:42 PM

I just got my defi link gauges hooked up. I'm not sure the numbers I got from my gauges are within spec for my motor.

Here's setup:
stock s14 sr20 w/ stock exhaust
(except tomei manifold, greddy oil pan and s15 smic core)
4qt 10w30mobile1 + 1qt 15w40mobile1 (for quiet down drained lifter)

defi link gauges: boost, egt, oil pressure, "oil temp"(not set up yet)
*egt sensor mounted on dp, half an inch next to turbo housing
*boost "t" to fuel regulator hose
*oil pres mounted at the oil filter housing
*oil temp mounted to greddy oil pan (still suffer wiring problem)

hwy cruising 65mph:
egt: 1100 F+ (normally near 1200F @70mph+)
oil pressure: 70 psi

idle:
egt: 800 F-
oil pressure: 20 psi (after warmed, ~60 psi cold)
vacuum: -60kpa (-8.7psi)

under 10psi boost
egt: 1400 F+

under 14psi
egt: 1500 F+ (full throttle at 7k rpm)

Do these numbers seem normal? I think mine is running lean at high end and becomes too hot 1500 F at 14psi. My friend's evo never go above 1400 F even under boost.
I heard at 1500 F, it is enough to melt pistons. Is the temperature at exhaust manifold/dp different from engine internal? Does it get hotter when the air gets outside of the engine?

what readings you guys have?

10-30-2009, 02:42 PM	#1
dongoesby Zilvia Addict Join Date: Mar 2007 Location: San Francisco Age: 38 Posts: 756 Trader Rating: (17)	Boost, EGT and Oil Pres Gauge Readings? I just got my defi link gauges hooked up. I'm not sure the numbers I got from my gauges are within spec for my motor. Here's setup: stock s14 sr20 w/ stock exhaust (except tomei manifold, greddy oil pan and s15 smic core) 4qt 10w30mobile1 + 1qt 15w40mobile1 (for quiet down drained lifter) defi link gauges: boost, egt, oil pressure, "oil temp"(not set up yet) egt sensor mounted on dp, half an inch next to turbo housing boost "t" to fuel regulator hose oil pres mounted at the oil filter housing oil temp mounted to greddy oil pan (still suffer wiring problem) hwy cruising 65mph: egt: 1100 F+ (normally near 1200F @70mph+) oil pressure: 70 psi idle: egt: 800 F- oil pressure: 20 psi (after warmed, ~60 psi cold) vacuum: -60kpa (-8.7psi) under 10psi boost egt: 1400 F+ under 14psi egt: 1500 F+ (full throttle at 7k rpm) Do these numbers seem normal? I think mine is running lean at high end and becomes too hot 1500 F at 14psi. My friend's evo never go above 1400 F even under boost. I heard at 1500 F, it is enough to melt pistons. Is the temperature at exhaust manifold/dp different from engine internal? Does it get hotter when the air gets outside of the engine? what readings you guys have? Last edited by dongoesby; 10-30-2009 at 03:56 PM..