When I start my car up cold, it's around 45psi, and driving around under 3000RPM it can go up to about 60ish psi. When the car is warmed up, the idle is 40psi on the nose. Cruising is around 50-65psi. When I get on it really hard, likek up to 5500+ RPM it can go as high as 70psi. Is that too much? Should I be worried? I mean at least it is showing an increase in psi when I rev it higher as it should. I have the stock oil pump in and do regular oil changes with Castrol Syntec 5W30.
I'm considering doing a cam change soon and want to know if I need to think about investing in a high flow oil pump, like one of the ones from ARE, or not, since my pump seems to work good. Just want to know if that's too much pressure. Thanks.

Bryan
2001 Trans AM WS6 TNT Style
nvethis@nvethis.d2g.com
NVETHIS Gallery

<small>[ June 21, 2002, 09:32 AM: Message edited by: NVE THIS ]</small>

 

I have around 60 at cold idle and higher at higher rpm's

warmed up I have 45ish at idle and 60ish at 2,000 rpm's. I am running AMSOIL 5-30, soon to be 10/30.

 

That's great pressure!

 

Don't Chevys have a pressure releive valve of some kind on their oil pump so the psi will never go above 70psi? I seem to recall the L98s do...

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong>That's great pressure!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Is that directed twords my post? If so, cool, I won't worry. Thanks.

-B

<small>[ June 21, 2002, 10:29 AM: Message edited by: NVE THIS ]</small>

 

Come down to Houston and see if it gets the same pressure when idling in 95* weather with our wonderful traffic system <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Thats great oil pressure, nothing to worry about. I wouldn't swap out the pump unless you have a 2000 or older vehicle or are showing symptoms of oil pump failure.

 

My car idles at 35 and when cruising it's always at 42. When I hit it it may go to 50.

Is more pressure better?

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by NVE THIS:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong>That's great pressure!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Is that directed twords my post? If so, cool, I won't worry. Thanks.
-B</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ya. Don't replace that pump. You have a good one.

I went with another ported aftermarket one. They are all based on GM pumps. I had a pump like yours and upgraded. Or uhhh DOWNgraded. The new aftermarket pump SUCKED. Had less pressure and eventually failed taking out a rod & bearing.

It more has to do with luck of getting a good GM pump than stock vs. ported.

 

When sitting in traffic, is it normal for the pressure to drop around 30-35 and jump to 40, it does this repeatedly...anyone?

Matt
1998 Z28

<small>[ June 21, 2002, 03:36 PM: Message edited by: WstSidHomE ]</small>

 

My oil pressure fluctuates a little between 35 and 40 when it is hot out and I have been runnin it for a while. I run Mobil 1 5W-30. I woudnt worry about it bro. IMHO

 

Cool, that's exactly what I wanted to hear. Thanks. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

 

I have 60 at idol and 70 or so pegged.the stock pump in this new moter rocks.