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how much oil pressure is too much?

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Old Jun 1, 2005 | 09:42 AM
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Car: 83 firebird s/e w/ttops and a/c
Engine: 2.5 iron duke/ tech IV
Transmission: 5 speed
how much oil pressure is too much?

the gauge probably isnt very accurate but it says im running between 45 and 65 lbs. is this too much or should i be happy i have oil pressure?
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Old Jun 1, 2005 | 02:19 PM
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From: Wahiawa, Hawai'i
Car: 1989 TTA
Engine: LC2
Transmission: Worn-out 200R4
Axle/Gears: BW 9-bolt, 3.27's
You should be happy you have oil pressure. That's plenty, and yeah, the gauge could be inaccurate. Very inaccurate, actually. Since they're not really calibrated at all, about all that does is tell you that you have pressure. If you're wanting to find out exactly what your pressure is at, go get an aftermarket gauge. This applies to every other gauge, too.
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Old Jun 1, 2005 | 02:43 PM
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
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Old Jun 1, 2005 | 04:48 PM
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you have too much when the side splits on the filter, from what i hear around 85psi.
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Old Jun 1, 2005 | 05:02 PM
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Car: 1989 TTA
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Axle/Gears: BW 9-bolt, 3.27's
Dang, that's a lot of pressure. Another good reason to make sure the filter gasket and sealing surfaces on the block are clean and free of defects. Would a filter slip-on cooling collar prevent that from happening?
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Old Jun 1, 2005 | 06:54 PM
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Originally posted by pvt num 11
You should be happy you have oil pressure. That's plenty, and yeah, the gauge could be inaccurate. Very inaccurate, actually. Since they're not really calibrated at all, about all that does is tell you that you have pressure. If you're wanting to find out exactly what your pressure is at, go get an aftermarket gauge. This applies to every other gauge, too.
[B]

I agree. Also if you choose to install the aftermarket gauge, it should increase with pressure as the engine RPM increases.
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Old Jun 1, 2005 | 06:56 PM
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Originally posted by ede
you have too much when the side splits on the filter, from what i hear around 85psi.
[B]

Yea, it seems that Fram filters will do it with even less!
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Old Jun 1, 2005 | 08:39 PM
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From: Moorpark
Car: 1991 CAMARO 1968 FIREBIRD
Engine: CAMARO 3.1L FIREBIRD 455
Transmission: CAMARO 700R4 FIREBIRD TH-400
According to my guage i run 60-80 PSI all the time it even said this with my old sending unit havent had any problems with it being like this and it has been this high since i hit a dip about 5 years ago.
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Old Jun 2, 2005 | 12:46 AM
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Car: 83 firebird s/e w/ttops and a/c
Engine: 2.5 iron duke/ tech IV
Transmission: 5 speed
mine moves when i drive it but all the gauges are crap.
im probably gonna go with some cool digital gauges for that knightrider look.
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Old Jun 2, 2005 | 07:12 AM
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Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
AC-Delco's will do 95psi without bursting, don't ask me how I know
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Old Jun 2, 2005 | 09:35 AM
  #11  
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Car: 1982 Z28
Engine: LS1
Transmission: T56
Originally posted by brutalform
[B]

Yea, it seems that Fram filters will do it with even less!
Do you have actual first-hand proof of that, or are you just repeating monkeyspank?
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Old Jun 2, 2005 | 10:24 AM
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Originally posted by kevinc
Do you have actual first-hand proof of that, or are you just repeating monkeyspank?
[B]

Dont know if it was a defect, but I witnessed it swell up on the engine dyno.
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Old Jun 2, 2005 | 10:34 AM
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Besides the filter issue, anything over 80# could cause the bearings to grab the crank and spin.
And yes, that has been documented.
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Old Jun 2, 2005 | 12:08 PM
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From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
Originally posted by Dyno Don
Besides the filter issue, anything over 80# could cause the bearings to grab the crank and spin.
And yes, that has been documented.
Interesting! I had not heard that before, thanks for the info
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Old Jun 2, 2005 | 12:11 PM
  #15  
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Car: 83 firebird s/e w/ttops and a/c
Engine: 2.5 iron duke/ tech IV
Transmission: 5 speed
do those oil cooler collars work, or are they just fluff?
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Old Jun 3, 2005 | 12:59 PM
  #16  
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Car: 1982 Z28
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Originally posted by mars22
do those oil cooler collars work, or are they just fluff?
On most engines they're a waste, but on the Iron Puke they're a must have!!
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Old Jun 3, 2005 | 05:04 PM
  #17  
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From: Wahiawa, Hawai'i
Car: 1989 TTA
Engine: LC2
Transmission: Worn-out 200R4
Axle/Gears: BW 9-bolt, 3.27's
Er... I think the oil cooling collar thing is more of a dress-up item then of any real value, pretty much regardless of what engine the filter is stuck to. If you want your oil cooled, try looking up a for-real oil cooler at Summit or something. Cooler oil makes for a happier and longer-running engine.

Correct me if I'm wrong, but I think the camshaft is only cooled by oil flow. Heat breaks down oil so it doens't protect as well as it should, after a time, which is why it is important to change it on a routine basis - and that includes rear-end lubricants, too.
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Old Jun 3, 2005 | 11:19 PM
  #18  
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Car: 83 firebird s/e w/ttops and a/c
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Transmission: 5 speed
i just did the axle oil last week.and next oil change im going to all synthetic.
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