Generation III Internal Engine 1997-2006 LS1 | LS6
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What Oil Pressure are you guys seeing at idle?

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Old 08-25-2006, 10:13 AM
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Originally Posted by DanZ28
Cold idle = 55-58psi
Hot idle = 38-40psi
Pretty much what I see
-ported ls6 pump
-gc 0w30
-k&n filter
Old 08-25-2006, 09:21 PM
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cold idle = 60 psi
hot 40-45 but mine never go under 40 psi
Old 08-25-2006, 10:42 PM
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70-75 Cold
60-65 Hot

Mellings High Volume Oil Pump!!!
Old 08-25-2006, 10:47 PM
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50 PSI cold, 30 PSI hot with LS6 pump ???
Old 08-25-2006, 11:17 PM
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55-60 psi, cold
40-45 psi, hot
Stock oil Pump 54xxx on the clock.
Old 08-25-2006, 11:24 PM
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55-60 cold idle
38-40 warm idle
with mobile one 10w30
Old 08-26-2006, 12:34 PM
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55 cold, 25 hot
Old 08-26-2006, 12:40 PM
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usually around 50 cold and 35 hot w/ ported ls6. usin GC 0w30
Old 08-26-2006, 03:05 PM
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LS6 Ported Pump

cold: 60~70
hot: 55~60

m1 syn. 10w-30
Old 08-26-2006, 09:58 PM
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Alum block
Cold idle 40
Hot idle 25

Kurt
Old 08-26-2006, 11:08 PM
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Are you guys going off the stock gauge in the cluster how accurate is it
stock pump castrol 10w 30w
60 psi coldstart
40 psi 210degrees 700rpm idle
Old 08-26-2006, 11:26 PM
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70 + cold, doesn't drop much hot. Amsoil 20-50w.
Old 08-27-2006, 02:13 AM
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55 cold
30 hot

99 ls1, 90k

GC 0w30
Old 08-27-2006, 02:39 AM
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50-60 cold
35-42 hot
maybe 30 in really hott 100+F
after a pass down the track...but always hits 60 @6800RPM
Stock pump
Old 08-27-2006, 01:37 PM
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cold idle: 55-60
hot idle: 40-45
WOT: 65-70
above 3000rpm when cold: 75-80

My car has 102k, and the motor has never been touched. I run GC 0W30.

Jason
Old 08-27-2006, 04:45 PM
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Cold: 60psi
Hot: 38/39psi

90k miles, original engine/oil pump. RP 5w30 every 3k since 8k.
Old 08-27-2006, 05:42 PM
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Are you guys using the stock oil pressure gauge in the dash, or a aftermarket type such as Autometer? The stock one in my gauge cluster shows about 10-15psi higher than my Autometer one.

After a bit of highway driving when the oil gets real hot it will drop down to 25psi(Autometer gauge), but after I get off the highway it will go back up to about 35psi or so. Thats with 5w30 non synthetic Mobil 1 oil, as I am trying to break the new motor in with crude oil.
Old 08-27-2006, 06:58 PM
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I'm using the stock one. My autotap won't show oil pressure.
Old 08-27-2006, 09:12 PM
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Non Ported LS6 Pump 50-55 cold, 38-40 hot idle
Old 08-27-2006, 09:46 PM
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Hot 27-29 psi @ 750-800 rpm
Cold about the same
Refreshed bottom end new main bearings(1000 miles)
Ported LS6 Pump
Vavloline Synthetic 20W50



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