1st off....what oil pressure is considered too low and very harmful oil starvation.

When taking hard turns my oil pressure goes as low as 18psi, from the usual 74psi or so. Is 18psi very bad if it only happens on very hard turns? It usually stays above 55 when turning moderately, and drops a little lower when taking even harder turns. I know oil starvation has been discussed before, but i didn't come across any psi numbers as to when its really bad...thanks.


2nd...how much of an improvement (reduction in oil starvation) have you guys seen by switching to a modified pan like the z10, moroso, mugen or spoon?


thanks for any info



Modified by sol2nr at 5:04 PM 3/7/2004

 

general rule of thumb has always been a minimum of "10 psi per 1000 engine rpm at all times".

hope that helps.

if you search, you will find tons of threads and opinions on this subject.

good luck.

todd

 

oh yeah...its a b-series engine.

so, if i'm at 5000+rpm and at WOT, taking a turn really hard, 18psi isn't good at all, right?

 

I bought a Mugen oil pan.

No problems with starvation, but i never ran the car with the stock pan.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sol2nr &raquo;</TD></TR><TR><TD CLASS="quote">oh yeah...its a b-series engine.

so, if i'm at 5000+rpm and at WOT, taking a turn really hard, 18psi isn't good at all, right?</TD></TR></TABLE>

no -- that's pretty low.

a relatively inexpensive alternative to a new pan is simply welding baffle plates into your stock pan.

 

i have to read up on that more.

i'm still trying to see how low the oil pressure really goes. its hard to see on the street b/c its hard to find a really good turn w/ no cars around and enough time to check the gauge and RPMs.

anyone know how much of an effect a modified pan will have?

 

I know it's a completly different engine with different specs but the 2.5L 944 engine runs about 80psi at WOT, which is similar to your 74psi... and we have the oil warning light set to trigger at anything below 40psi. I can't image 18psi is okay.

 

see i'm not sure what rpm i was at when i saw 18psi, and unfortunately on the street i can't check this out often. why do u have it set at 40psi? right now i have mine set at 20, b/c at idle it eventually drops to about that, or a little higher.

you're saying your oil psi never goes 40, and if it does theres something wrong, or are you saying that any oil psi under 40 isn't good...

i understand totally different engine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sol2nr &raquo;</TD></TR><TR><TD CLASS="quote">see i'm not sure what rpm i was at when i saw 18psi, and unfortunately on the street i can't check this out often. why do u have it set at 40psi? right now i have mine set at 20, b/c at idle it eventually drops to about that, or a little higher.

you're saying your oil psi never goes 40, and if it does theres something wrong, or are you saying that any oil psi under 40 isn't good...</TD></TR></TABLE>

It was a recommended setting by our race mechanic. They have years of experience with Porsches and it's what they suggested so we went with it. My car has been known to go below that on a hot summer day, sitting at idle after a race. The 40psi is the mark we use for on track pressure with the idea that if we're running the engine hard it shouldn't drop below 40 unless there's a problem (like I had with a broken oil pickup).

 

Oil starvation is how I blew up my first D16Z in my del sol. I ran at 7,500rpm repeatedly around some cloverleafs, and I bent a rod. The car was still under waranty, so I got a new D16Z from the dealer. I haven't invested in anything for my motor because if I stay in DSP I need a B16A, but I now fear of repeating the effect.

I can't help on saying what brands are good, but I definatly know that it can be a problem.

 

i think thats what killed my original d-series, allowing me to swap to a b.

i have no problem getting a modified oil pan if it'll make a big difference, but if its only going to increase oil pressure bye say, like 10psi, i can't justify spending the money on it. i need some more opinions from owners.
thanks.

 

A modified oil pan will not "add oil pressure" what it will do is keep oil at the pickup so that the pickup does not suck air.

How the hell are you starving the oil pickup on the street anyways?

Mugen pan:

http://www.we-todd-did-racing....D.jpg

http://www.we-todd-did-racing....D.jpg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ &raquo;</TD></TR><TR><TD CLASS="quote">How the hell are you starving the oil pickup on the street anyways?
</TD></TR></TABLE>

He didn't say anything about doing it on the street. It doesn't mean he's not but it was someone else who said something about cloverleafs... which I guess means your original question is still valid... haha... nevermind.

 

I experienced oil starvation only when taking a "jughandle" at the fastest speed my car could handle. So i figure it will be a little worse when i get autocrossing again this season and while on the track, where I'm really taking hard turns. I do NOT see oil starvation on everyday turns, no one should.

i understand it won't add pressure, but it'll keep oil pressure up b/c there will be oil by the pickup.

 

send me a spare pan and 75 bucks , I'll baffle it for you.

problem solved.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Doctor CorteZ &raquo;</TD></TR><TR><TD CLASS="quote">send me a spare pan and 75 bucks , I'll baffle it for you.
</TD></TR></TABLE>

:bling:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Doctor CorteZ &raquo;</TD></TR><TR><TD CLASS="quote">send me a spare pan and 75 bucks , I'll baffle it for you.

problem solved.</TD></TR></TABLE>

got any pics of ur work...

 

Had the same problem with my first d16z6 (with 124,000 mi at Roebling Road) and blew it up most likely due to oil starvation in the high g force turns. Had another engine built using non honda bearings (which I was unaware of). Still had low oil pressure. Had another engine built by Sunbelt/OPM and added Moroso oil pan and no problems since. Oil pressure never drops below 60 PSI. Never.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lyonel 13H4 &raquo;</TD></TR><TR><TD CLASS="quote">Had another engine built by Sunbelt/OPM and added Moroso oil pan and no problems since. Oil pressure never drops below 60 PSI. Never.</TD></TR></TABLE>

how low did it drop before the new oil pan?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sol2nr &raquo;</TD></TR><TR><TD CLASS="quote">

got any pics of ur work...</TD></TR></TABLE>

he's doing mine right now.. I'll post up a pic if he wants, when it is completed.. (well, assuming I see it before it goes on the car.. )

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Doctor CorteZ &raquo;</TD></TR><TR><TD CLASS="quote">send me a spare pan and 75 bucks , I'll baffle it for you.

problem solved.</TD></TR></TABLE>

Or they could send it here and have it done for 60$

http://www.10-94.com/online_ca....html

I'm having my spare pan done by them this week.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rice_classic &raquo;</TD></TR><TR><TD CLASS="quote">Or they could send it here and have it done for 60$

http://www.10-94.com/online_ca....html </TD></TR></TABLE>

The work that Jamie does will be far superior to those "baffles", which look like krap IMO.

 

those 10-9-4-45-90-xyz welds look suspect to me......

 

I guess he'll know pretty quick if those welds will hold up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Apocalypse &raquo;</TD></TR><TR><TD CLASS="quote">I guess he'll know pretty quick if those welds will hold up.</TD></TR></TABLE>

i'd rather not take my chances..