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 Post subject: oil pressure reading
PostPosted:Wed Feb 12, 2014 7:32 am 
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Big Block
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Joined:Wed Aug 01, 2012 10:49 pm
Posts:500
Car Details:a car thats older than the c*** that drives it....
Location:n london/ herts
what is ideal ???
mine is around 40 at start as if it is stuck but once warm idle is about 20 then rises with revs as normal...
this ok


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oil pressure reading

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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 8:22 am 
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Big Block
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Joined:Sun Jan 13, 2013 7:00 am
Posts:1158
Car Details:1986 Camaro, bought into Spain by me in 1993.
305 replaced by a 355, 750 Demon carb, RPM AirGap intake, Brodix heads, Hedman Hedders, 3" Flowmaster exhaust.
Wheels are Summit aluminium 5 spokes, tyres are 245 rear 225 front BF Goodrich.
B/M transmission, battery relocated to the rear, GoodMark 4" cowl steel hood.
Location:Spain East Coast
I find searching for answers on this kind of thing gives you many many varied theories.
But try this thread,
http://www.hotrodders.com/forum/correct ... 59581.html

"You need at least 10 lbs. of oil pressure for
every 1000 rpm's. Ideal is around 15-20 lbs
per 1000 rpm's."


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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 10:32 am 
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Big Block
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Joined:Fri Mar 19, 2010 1:35 am
Posts:2566
Car Details:79' camaro road & track day toy. 383 stroker, 5 speed TKO trans, lots of suspension stuff, 13" Vette brakes, 18" wheels.
Location:Luton
I thought it should 25/30 at warm idle. Mine sits around 30 at lowest, but it's a newish engine with some clever bits.

20 sounds a little low. You have got a Chevy engine in yours haven't you ?

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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 11:04 am 
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Big Block
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Joined:Wed Aug 01, 2012 10:49 pm
Posts:500
Car Details:a car thats older than the c*** that drives it....
Location:n london/ herts
a poncho....... but I think 20 is ok and use Valvoline racing stuff .....
bit worried how it sticks around 40 when cold but people tell me thats fine :eh:


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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 12:14 pm 
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Big Block
User avatar

Joined:Sun Jan 13, 2013 7:00 am
Posts:1158
Car Details:1986 Camaro, bought into Spain by me in 1993.
305 replaced by a 355, 750 Demon carb, RPM AirGap intake, Brodix heads, Hedman Hedders, 3" Flowmaster exhaust.
Wheels are Summit aluminium 5 spokes, tyres are 245 rear 225 front BF Goodrich.
B/M transmission, battery relocated to the rear, GoodMark 4" cowl steel hood.
Location:Spain East Coast
I have a high volume pump in mine, I see people saying it´s not a good thing but I´ve had it in there a long time no problems.
I think for low rpm use it keeps the top of the engine well oiled.
I see 50-60.


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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 5:49 pm 
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Big Block
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Joined:Wed Aug 01, 2012 10:49 pm
Posts:500
Car Details:a car thats older than the c*** that drives it....
Location:n london/ herts
Quote:
I see people saying it´s not a good thing .
in my opinion there's too many opinions in hot rodding :lolno:


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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 6:36 pm 
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Big Block

Joined:Sun Jun 02, 2013 7:20 pm
Posts:160
Car Details:80 T/A with a BBC
79 Z28
68 Firebird F 400
67 Firebird Convertible
Location:Penzance, Cornwall
May be your oil is a bit thin what grade are you using?

Also gauges are not always that accurate.

I think from memory that a Pontiac motor when warm should read 30 psi at 2000rpm

40psi at cold is ok :thumbup:


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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 7:01 pm 
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Big Block
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Joined:Wed Aug 01, 2012 10:49 pm
Posts:500
Car Details:a car thats older than the c*** that drives it....
Location:n london/ herts
30@2000 is about right :thumbup:

I use
http://www.ebay.co.uk/itm/Valvoline-VR1 ... 43bcd40446

was recommended kendall but its too expensive


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 Post subject: Re: oil pressure reading
PostPosted:Wed Feb 12, 2014 7:14 pm 
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Big Block

Joined:Sun Jan 01, 2012 5:00 pm
Posts:342
Car Details:Couple of '70 Mustangs
Most of the engines I deal with (plus my own) are around 60-80psi cold but drop to about 30 ish when hot idling, rising to around 60ish at moderate rpm. HTH
Cheers, Martin

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 Post subject: Re: oil pressure reading
PostPosted:Thu Feb 13, 2014 10:18 am 
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Big Block
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Joined:Fri Jun 04, 2010 4:01 pm
Posts:334
Car Details:1999 Camaro Z28 M6, Dark Blue, Borla catback with custom tips, Z06 front brakes, Hurst shifter, Team Dynamics wheels, Lowered 1", MTI lid, shock tower brace
Location:Shrewsbury, Shropshire
Mine doesn't drop below 38. Usually 45 to 55 driving when warm. 60 ish when started from cold.

But thats a LS1. My old LT1 had crap oil pressure in comparision. 20ish or lower when warm at idle but was fine when driving? I think it was something to do with a sticky EGR valve.

On a side note I was stuck in traffic in the Camaro last night and the engine temp and oil temp didn't move a jot. Well chuffed. Stayed just below 210 F and oil pressure a steady 38 at idle.


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