question about oil pressure gauge.
11-23-2007, 01:41 PM
#1
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Car: 1986 Iroc-Z
Engine: 350 4-Bolt Main
Transmission: Rebuilt 700R-4
Axle/Gears: 3:42
question about oil pressure gauge.
ok so i installed a set of autometer gauges in my car. well the temp and fuel gauge works fine but the oil pressure gauges only reads about 25-30 psi at idle. (warm) so i just finished a engine swap and used the same sending unit that came with the gauge but the new engine is still only runnin between 25-35 psi idel and warm. do u think it could be the sending unit? i replaced the gauge and sending unit once but the one i replced never got to see idle and warm engine. what do u guys think it could be? any suggestions would be greatly appreciated. thanks in advance.
11-23-2007, 03:28 PM
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Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: question about oil pressure gauge.
sounds good to me . oil flow is much more important than pressure . but 30+ at idle is good .
11-23-2007, 03:55 PM
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Car: 1986 Iroc-Z
Engine: 350 4-Bolt Main
Transmission: Rebuilt 700R-4
Axle/Gears: 3:42
Re: question about oil pressure gauge.
reason i mentioned is because iv never seen a v8 run 25 psi in oil pressure at warm idle. iv always worked on and restored 73-87 chevy trucks and every one of them would run between 40-60 psi in oil pressure.
11-23-2007, 04:02 PM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: question about oil pressure gauge.
10 psi per 1000 RPM is more than enough.
11-24-2007, 12:23 AM
#6
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Car: 1984 Camaro Z28
Engine: 357 SBC
Transmission: 700R4
Axle/Gears: 3.73
Re: question about oil pressure gauge.
Okay, so if mine runs at about 50psi +/- at idle is that good. Cause when I give it gas it max's out?
11-24-2007, 12:37 AM
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Car: 1984 Z28 Hardtop
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Axle/Gears: 3.54 Dana 44
Re: question about oil pressure gauge.
It's fine. More than you might need, but that's ok.
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11-24-2007, 07:09 AM
#9
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Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: question about oil pressure gauge.
you can , in some cases have too much oil pressure . bearing clearences and other factors enter in . think about how an auto. tranny works , fluid press. .
i have seen times where upper r.p.m.s were lost because of too many shims on oil pump relief spring . shims removed , r.p.m.s came back . just food for thought , press. is good but flow is important also . just a thought from an old piston driven acft. mech. .
i have seen times where upper r.p.m.s were lost because of too many shims on oil pump relief spring . shims removed , r.p.m.s came back . just food for thought , press. is good but flow is important also . just a thought from an old piston driven acft. mech. .
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