So the car is running, which is a plus, but im still thinking my oil pressure is a little low. Fully warmed up and at idle think its putting out 15 or so PSI, but even up in the revs, pressure never goes above ~60psi. Fully built motor, honda bearings, 10w30 oil.

I can also completly fill my catchcan (about a quart) after 2 pulls to the point of spraying out all over the place. I figured i had it mounted too low, so i moved it up about 3 inches, (can inlet is 6-7 inches above the port on the back of the block) and its still filling up, but not as bad. Can has a breather filter on top and is tapped off the port on drives side of the block and off the valve cover.

best pic of the can i have for reference. This was before i lifter it up a few inches:



Modified by adictionbass at 1:46 PM 4/19/2006

 

trying to figure out if i would be better off capping off the line on the back of the block and putting two more ports on the front of the valve cover, or just moving the can up higher...

 

idle pressure sounds about right.. but never going above 60 sounds a little odd.

the tapped holes on the back of the block are a lot more efficiant than tapping holes from the Valve cover.

there definatly shouldn't be that much oil making it's way to your catch can after 2 pulls tho.

 

what barb fittings are you using on the back of the block? the endyn anti syphon fittings? or the oem honda ones?

since you have it low, and on the firewall, i think accelerating etc is enough to throw oil in there

Maybe relocate it entirely? I would at least raise it. Or run the drainback

 

does seem a little on the low side. I'd raise it up to about the fuel filter height

 

My built motor makes 25 PSI at idle and 75 when running, and I'm running oil squirters. I'd guess it's an oil pump or bearing clearance issue.

I've had my Endyn can fill up once, on the straight stretch at VIR North Course, but only one time. I'm thinking about moving my vents to the valve cover if it continues to be a problem.

 

That oil pressure does seem a bit low.

Where do you have your oil pressure sender located? They can read a little differently depending on where you have them tapped into.

On my car I had a line from the stock oil pressure sensor location on the block to a distribution T on my firewall. From the T, I had the stock sensor, the autometer electronic sensor, and then my turbo oil feed line.

My oil pressue gauge read about how you described, about 15 idle and 60 while accelerating....

I took my turbo off one time so I could pass emissions and plugged the oil feed line with a threaded plug. For some reason, when the oil feed line was plugged the oil pressure read higher, like 20 at idle, and up to 80 or so when accelerating.

Anyways, I didn't think it was anything to worry about.

Oh, and definately relocate that catch can to the highest position possible. You just want vapors getting to the catch can, not oil.

 

I hadn't thought about the turbo bleeding off some of the pressure, I run my oil pressure gauge off of a Greddy sandwich plate and don't have a turbo.

 

i have everything relocated to the firewall and T'd off of there.

im using the prelude nipple on the back of the block and running a 1/2" hose? to the barb on the catch can.

 

would it be a waste/repetative to run two cans, one off the back of the block with a return/drain back to the pan, and a second to run off the valve cover without a drain?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adictionbass &raquo;</TD></TR><TR><TD CLASS="quote">i have everything relocated to the firewall and T'd off of there.

im using the prelude nipple on the back of the block and running a 1/2" hose? to the barb on the catch can.</TD></TR></TABLE>

That is your problem , no anti syphon tubes , also how is the oil pressure gauge tapped?? what size line ?? etc ???

 

i guess i will have to look into the 'anti syphon tubes'..

I have an 1/8" -&gt; -3 line off the block, that goes into a T. Have the gauge on one side, and the turbo feed on the other.

 

i not finding much info on anti siphon fittings...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adictionbass &raquo;</TD></TR><TR><TD CLASS="quote">i guess i will have to look into the 'anti syphon tubes'..

I have an 1/8" -&gt; -3 line off the block, that goes into a T. Have the gauge on one side, and the turbo feed on the other.</TD></TR></TABLE>

so is the gauge in side your car ?? and you have -3 running to it ??

 

right now i have a mechanical gauge plumbed into the t off the fire wall. The gauge in the car is electical and had the sending unit mounted right on the T.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adictionbass &raquo;</TD></TR><TR><TD CLASS="quote">right now i have a mechanical gauge plumbed into the t off the fire wall. The gauge in the car is electical and had the sending unit mounted right on the T.</TD></TR></TABLE>

That's how I had mine when the pressure would read a bit low. I think because you have the sender at the T, the turbo feed line bleeds off some of the pressure so the gauge reads a bit low.

I really wouldn't worry about it if I were you.

 

for the time being, im just going to put a line from the catchcan drain and T it back to the outlet on the block so it just drains the can back to oil pan..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adictionbass &raquo;</TD></TR><TR><TD CLASS="quote">would it be a waste/repetative to run two cans, one off the back of the block with a return/drain back to the pan, and a second to run off the valve cover without a drain?</TD></TR></TABLE>


THIS IS YOUR ANSWER, RUN TWO LINES OFF THE VALVECOVER AND YOU WILL NOT FILL UP ANYMORE

The reason your filling up is that the velocity of the air coming out of the hoses on the back of the block is so extreme, it is causing the ventuilli effect or whatever the hell its called where it is SUCKING oil out of the motor.

If you can use larger diameter hoses on the back of the block also, that woul
d help too!!

trust me....even though you talked mad **** about my oil return line!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike1114 &raquo;</TD></TR><TR><TD CLASS="quote">


trust me....even though you talked mad **** about my oil return line!!! </TD></TR></TABLE>

lol... i actually have a half inch line off the back of the block some im not trying to go too much farther. What i just stated above would be a short term fix...

Im going to try to get another catchcan, run 2 big lines off the valve cover to one catch can without a drain, then run the line off the back of the block to the second can with a drain back to the pan