mine is idling just under 75 psi isn't this kind of a little too high??

 

is that when its warm?? wow that is high....... u running a mechanical or electrical?? im using an electrical autometer and idling about 15-20lbs and by 3.5k up to 70lbs.........

 

that's warm and it's an electrical gauge

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D16z6turbs &raquo;</TD></TR><TR><TD CLASS="quote">that's warm and it's an electrical gauge
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Are u completely sure about it being warm? Sounds like its just warming up, not fully warmed up. Drive around for like 20 minutes and then see what happens. My sohc non vtec would show numbers like that but only when its cold-slightly warm.

 

it idles now at under 25 psi but when i stomp on the gas the psi will almost go to 100 psi. is this normal

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D16z6turbs &raquo;</TD></TR><TR><TD CLASS="quote">it idles now at under 25 psi but when i stomp on the gas the psi will almost go to 100 psi. is this normal</TD></TR></TABLE>

yes.

 

ok thanks very much

 

so is there a problem that my zc only max's at 70psi when its warm?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sloorex &raquo;</TD></TR><TR><TD CLASS="quote">so is there a problem that my zc only max's at 70psi when its warm?</TD></TR></TABLE>

My SOHC ZC had a little bit more from what i can remember, but if its the DOHC ZC then im sure its fine. When i swapped in my B17 my oil pressure is somewhere around 65-80psi max.(cant really recall exactly but i will check my gauge next time) when warm.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D16z6turbs &raquo;</TD></TR><TR><TD CLASS="quote">mine is idling just under 75 psi isn't this kind of a little too high??</TD></TR></TABLE>

wait until the car its fully warm

i just installed a mechanical one not too long ago

By Honda: SOHC VTEC Z6 should have 10 psi on idle and 50 psi @ 3000 rpms... (hot "warm" oil)

on my case.... i get about 12 psi idle and about 70 psi at and over 3k rpms/..

 

The bottom line is this, do you have oil pressure? Every engine is different, no one answer is right here. Manufacturers put a range of numbers as oil pressure specs because of this. Most Honda engines I've ever seen run somewhere between 10 psi at idle to around 80 psi @ 2500+. Remember, all oil pressure is telling you, is that the oil pump CURRENTLY has the ability to pump more into the oiling system than it can CURRENTLY discharge. You're looking for anything but extremes; too low (less than 10psi) can mean oil starvation,and catistrophic failure; too high(100 psi or more, although this is debateable as well) can cause problems with premature bearing wear, seal and gasket failure, or possible blowby conditions-especially at high rpm, WOT conditions. So far, I have found mechanical guages to read consistently lower than electric guages. I tend to believe the mechanical guages more- it's a hydrualic guage reading a hydrualic pressure. On the other hand, an electric guage "inturpets" hydraulic pressure into an electomagnet force to move the needle on the guage. Both work, more preference than anything else.
An intreresting side bar about all this: I've read alot of sturff on Nascar engine builders over the years, and one of the tricks that several builders have done, in order to keep those engines alive for 500 wide open miles is by running very high oil pressures with very high volume pumps. If you swamp those valve guides and seals constantly, you'll usually burn a little oil through the valve guides. Nice way to keep those rings cool and lubed at sustained high rpm. Down side is that it robs horsepower by taking some of the space in the combution chamber that would have been used by fuel/air mixture. However, if you were a 750hp v8 held wide open for for 4+hours, you'd probably appreciate the extra lube!!!!!!

 

well said and enough said.