Oil Pressure?!
03-19-2007, 03:17 PM
#62
Okay, finally got a chance to check it out today. At cold start up, it idles between 40-50. Once warmed up, it dropped to about 30 at idle, but once I opened up the throttle it saw 45-50. I tried to check it out at WOT but in 2nd gear it spun the tires to much to put the motor at load to get an accurate reading. The 45-50 was under 50%-75% throttle at 3-4,000 RPM.
I am guessing from what everyone has said here, that I am alright. Does anyone believe I may have something I need to worry about?
I am guessing from what everyone has said here, that I am alright. Does anyone believe I may have something I need to worry about?
03-19-2007, 03:54 PM
#63
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you sound fine. if it's a higher mileage car, the lower oil pressure to me sounds like there's just a little engine wear (looser tolerances). :shrug:
i run 10w30 mobil 1 with a wix 51042, and i forget what reading the oil pressure gauge exactly says in my car, but it pretty much points straight up and a couple degrees to the right at all times from cold start to hot.
from a bunch of research i did a long while back for working with gen. 1 small block chevolets, everyone pretty much agreed on a PF454 delco filter and a wix 51069 as the best not-special-order filters under $10. when i got my LS1 i stuck with the wix filters as they were easier to get than the delco filters. i have about five 51069 filters and two 51042 filters remaining in the garage.
i run 10w30 mobil 1 with a wix 51042, and i forget what reading the oil pressure gauge exactly says in my car, but it pretty much points straight up and a couple degrees to the right at all times from cold start to hot.
from a bunch of research i did a long while back for working with gen. 1 small block chevolets, everyone pretty much agreed on a PF454 delco filter and a wix 51069 as the best not-special-order filters under $10. when i got my LS1 i stuck with the wix filters as they were easier to get than the delco filters. i have about five 51069 filters and two 51042 filters remaining in the garage.
03-19-2007, 05:57 PM
#64
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Originally Posted by CALL911
Okay, finally got a chance to check it out today. At cold start up, it idles between 40-50. Once warmed up, it dropped to about 30 at idle, but once I opened up the throttle it saw 45-50. I tried to check it out at WOT but in 2nd gear it spun the tires to much to put the motor at load to get an accurate reading. The 45-50 was under 50%-75% throttle at 3-4,000 RPM.
I am guessing from what everyone has said here, that I am alright. Does anyone believe I may have something I need to worry about?
I am guessing from what everyone has said here, that I am alright. Does anyone believe I may have something I need to worry about?
I get about 50psi at cold start, 35 at warm idle, and 50+ by 3000rpm. But my motor is very low mileage.
03-19-2007, 06:06 PM
#65
Originally Posted by RPM WS6
IMO, this sounds decent for a higher mileage motor.
I get about 50psi at cold start, 35 at warm idle, and 50+ by 3000rpm. But my motor is very low mileage.
I get about 50psi at cold start, 35 at warm idle, and 50+ by 3000rpm. But my motor is very low mileage.
-J
03-19-2007, 07:11 PM
#66
Originally Posted by CALL911
Okay, finally got a chance to check it out today. At cold start up, it idles between 40-50. Once warmed up, it dropped to about 30 at idle, but once I opened up the throttle it saw 45-50. I tried to check it out at WOT but in 2nd gear it spun the tires to much to put the motor at load to get an accurate reading. The 45-50 was under 50%-75% throttle at 3-4,000 RPM.
I am guessing from what everyone has said here, that I am alright. Does anyone believe I may have something I need to worry about?
I am guessing from what everyone has said here, that I am alright. Does anyone believe I may have something I need to worry about?
03-19-2007, 07:17 PM
#67
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Its all good now i did just do an oil change... and it sits at like 38 during idle... so it runs like a champ... now its time to get a new rear end haha
03-19-2007, 07:34 PM
#68
Originally Posted by bww3588
i think, you should change the oil, put the good **** in it with a good filter and then check it.
03-30-2007, 06:15 PM
#69
UPDATE
Finally did the oil change today. The car had a Fram oil filter on it
I replaced it with an AC Delco one, along with some 5W-30 Valvoline.
WOW, I didn't expect to see that much of a change. At idle, instead of idling warm at 25 it idles at 40. At WOT, instead of barely hitting 50, it now gets to 60-65! I feel much better about the car now knowing the pressure is where it should be.
Finally did the oil change today. The car had a Fram oil filter on it
I replaced it with an AC Delco one, along with some 5W-30 Valvoline.WOW, I didn't expect to see that much of a change. At idle, instead of idling warm at 25 it idles at 40. At WOT, instead of barely hitting 50, it now gets to 60-65! I feel much better about the car now knowing the pressure is where it should be.
04-02-2007, 08:47 AM
#71
take the manifold off....gm has a specific socket for a wrench....it has to fit over the sending unit because of how its placed on the block...
some people say you can do it without taking off the manifold, but i call bs until i see some vids or something
some people say you can do it without taking off the manifold, but i call bs until i see some vids or something
04-02-2007, 02:30 PM
#80
Originally Posted by staringback05
nope pedro....an LT1 will idle with a lower psi but just slightly...and if your idleing in a ls1 with 20-25 constant...youve got a problem....
these cars do not function on that redneck bullshit idea of 10psi per 1000 rpms....whoever keeps spreading that on here should be taken out and shot....because im sure theyve ruined alot of guys motors with that talk...
for example in theory......a A4 car idles around 500rpms (mine does)...soo my engine would function at 5psi with no problems?!?!...WTF
what ive learned from experience and two gm techs....at 1000rpms your car should be have a psi around 30....AT LEAST
ive had 3 ls1 motors....my first with 46k miles on it idle'd at 28 psi...and spun 2 bearings in the process due to lack of lubrication....
these cars do not function on that redneck bullshit idea of 10psi per 1000 rpms....whoever keeps spreading that on here should be taken out and shot....because im sure theyve ruined alot of guys motors with that talk...
for example in theory......a A4 car idles around 500rpms (mine does)...soo my engine would function at 5psi with no problems?!?!...WTF
what ive learned from experience and two gm techs....at 1000rpms your car should be have a psi around 30....AT LEAST
ive had 3 ls1 motors....my first with 46k miles on it idle'd at 28 psi...and spun 2 bearings in the process due to lack of lubrication....
Chiltons* manual says 6psi is minimum at idle for an ls1 and a ford cel light will only coome on at 8 psi.