just had a new cam & pushrods & springs & Head Gaskets & new Timing chain, put in my 2000 Formula, I just bought the car in march & noticed the car had low Oil Pressure, On start up after sitting all night when I would start the car, The car would idle around 40 psi on the stock gauge for the oil pressure. But after about 30 mins or so once the car had warmed up it would drop to about 32 psi on my stock Oil Pressure gauge.

My question is 32 psi Oil Pressure something I should be worried about or is this normal for my car

The shortblock has 103,000 miles on it & has had a fair amount of Nitrous through the motor from the last owner.

Here is a list of my mods!
Stage 2 4l60E Transmisson with TCI Flexplate all upgraded internals was rebuilt by Phoniex Tranmission
Yank Pro Thruster 4400 Stall Converter w/shift kit & Trans cooler
B&M Deep Tranny Pan
Ported stock LS1 Heads
LS6 Intake
Shaner TB
42lb Injectors
Walbro 255 In tank Fuel Pump
NEW Patriot Gold Valve Springs (zero miles)
NEW Hardened Pushrods
NEW Lifters
NEW Timing Chain
NEW Cam Motion Custom Cam Intake is a 600+ lift on Intake & Exhaust with a 238 -242 Duration with a 115 Lope Seperation car put down 420 RWHP on motor
Hooker Super Competeion Long Tube Headers 1 7/8ths
Texas Speed True Dual X-Pipe with Bullet mufflers Dumped
Subframe connectors
Super Slot Rotors
Hawk Pads
New Eibach Pro Kit Springs
QA1 Coil Overs up front
QA1 Adjustable shocks in the back
MSD Wires
Carbon Fiber Lid Drilled for a 5177 NOS KIT
5177 NOS Kit
Window Switch
Remote Bottle Opener
Bottler Heater
NOS Purge coming out the Nostrals SET UP CLEAN NO LINE'S UNDER THE HOOD
3.42 gear out back
T/A Girdle
Tuned & built by Simple Quick Racing out of Fort Worth, TEXAS!
10 Hideaway box so you can still store your t-tops & Rockford amp
WS6 Aftermarket Ram Air Hood
Torqe Thrust II Rims Powder Coated Black w/chrome silver lips
Brand New M/T 17 11.5 ET Streets
New Hawk Break Pads
Slotted Rotors & drilled rotors


Thanks guys!

Seb

 

Get a ported ls6 pump, and make sure you get a new o ring when u swap it.

 

where is it at part throttle and wot ? If it goes up don't worry about it..

 

well part of the lower oil pressure is due to it being summer and hot as hell. I dont think you have any thing to worrie about just when u get the chance just get a ported ls6 oil pump.

Thomas

 

With my stock ls6 pump I idle at 40psi, 50psi during normal driving and 60psi@WOT, while it is still warming up it sits at about 50psi as well. Hope this helps.

 

it could be the Hawk Brake pads or quite possibly the T/A Girdle

like mentioned above , was this at idle , or at what RPM range did it drop to 32psi?

 

 

When the car is first started up in the morning it will idle at 40 psi when first started up, After taking the car out & driving it, Say for example I am at a stop light the car will after warmed up idle at 32 psi. The oil pressure does go up to 50 to 60 psi on a WOT hit though.

What can I do to get the car to idle at 40 psi all the time in this Texas Heat. Also is installing a Ported LS6 Oil Pump something I can do in my garage on the weekend & how involved of a project is it?

 

Thanks for all the history on your car. That can make a difference when you diagnose an oil pressure problem.

Do you really think 8 psi....32 to 40 is going to make a difference. I mean seriously, you've got to be kidding...RIGHT?

 

As long as ur getting up to 50-60 at WOT and normal driving your good to go.

 

Did you really register to say that? You got to be kidding... RIGHT?

 

I was under the impression that if my Oil Pressure was under 40 psi that this was a red flag & should be worried.

No I was not kidding,Yes I did think 8 PSI would make a diffrence by the way! Never hurts to ask then learn the hard way! I am out maybe 10 mins of time to give myself a peace of mind.

 

i was told that you need at least 10 psi per 1000 rpms..and you are safe..my idle psi is about where yours is...it should be fine..

 

You are absolutly correct. Have seen as low as 12 psi at idle, The oil pressure will get lower as the oil temperature increases.

 

mine is all stock i only have flow master and mine is doing the same thing but only when iam at a light or idle but when iam drving it go's back up i thought it was because its so hot!

 

I was at a Gm dealership and asked a tech there to check what GM specs are for a 99 LS1 oil pressure. I was shocked....6psi at idle and 20psi at 4000 rpms...thats weird

 

My car used to be low like that, but not that low. I dunno what it was, but after I did my last oil change, its quite high. I know I didn't add too much. So, a cold start up is like 60-70 psi. Warm idle is 45-50 and WOT is 75.

 

damn my lt1 is @ 32 psi at WOT j/j but really lt1's have some low oil pressure....

 

mostly all 23* motors pull less pressure with a stock pump... high volume pumps are good up grades... just by stock pump and put a high pressure spring and your good to go on the lt1

 

my lt1 warm and during driving sits around 35 or so psi. At idle and stop it at 20 psi.

They say for the LT1 every 1k rpms should be 10 psi or something like that,