normally i have around 16+psi of oil pressure at idle once warm. after some hard 27psi pulls at idle i have below 10psi.

im currenlty running 10w 30. do you guys think thinker oil, say 15w 50 would help

if i let the car cool down the oil pressure is back to 16-20psi at idle

temps are 250+ after hard runs

platinum.

 

that seems really low for oil pressure-

I've got a solid 30 psi at hot idle...after a few hard pulls in mine, pressure sometiems drops to about 25...

I think MAYBE once the oil gets nice and hot that it thins out and pressure drops. I'm using 10w-30 Valvoline dino oil.

R

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by platinum00 &raquo;</TD></TR><TR><TD CLASS="quote">normally i have around 16+psi of oil pressure at idle once warm. after some hard 27psi pulls at idle i have below 10psi.

im currenlty running 10w 30. do you guys think thinker oil, say 15w 50 would help

if i let the car cool down the oil pressure is back to 16-20psi at idle

temps are 250+ after hard runs

platinum.</TD></TR></TABLE>

Damn, I think with those oil temps I would look into getting an oil cooler. Did you get your oil pump shimmed to increase oil pressure?

 

i thinking the gauge could be bad, i mean shouldnt the dummy light come on at that low of pressure.

no i did not get the pump shimmed for higher pressure. how do i do that?

i have an oil cooler i could hook up, but i thought that would lower the pressure even more.

 

Wait so after a handfull of hard pulls your oil temp is hitting 250+? What are your water temps like? Where is the gauge tapped at? Thats pretty hot, Id look into a oil cooler for sure. After really hard runs in my car, my oil pressure drops to like 13 psi. The readings have been different since I've turboed my car and Im T-ing everything off of one line. Ive recently read that the gauge does not read as accuarately as it would if it had its own dedicated line.

 

Well oil thins out as it gets hot , so less pressure will be a result , run some VR1 20-50 oil , I always run that weight of oil in a turbo car , it jus thins out way to quick with any thing less

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blaze45 &raquo;</TD></TR><TR><TD CLASS="quote">Wait so after a handfull of hard pulls your oil temp is hitting 250+? What are your water temps like? Where is the gauge tapped at? Thats pretty hot, Id look into a oil cooler for sure. After really hard runs in my car, my oil pressure drops to like 13 psi. The readings have been different since I've turboed my car and Im T-ing everything off of one line. Ive recently read that the gauge does not read as accuarately as it would if it had its own dedicated line. </TD></TR></TABLE>

water temps are good, around 200 - 210. i use a samwich plate on the oil filter for all my fittings. could that have something to do with it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">Well oil thins out as it gets hot , so less pressure will be a result , run some VR1 20-50 oil , I always run that weight of oil in a turbo car , it jus thins out way to quick with any thing less</TD></TR></TABLE>

how much psi gain will i get with going with 20-50. any cons to running this oil? what about my tune?

platinum

 

are you running the shitty stock y8 pump? that could be a cause. my car drops to about 15psi at idle when its hot (z6), and im running 20w50. cold idle its at 80+. i would suspect if your running thin oil like 5w30 it could be getting really thin at high temps

 

will not effect a tune I dont think seeing how it is just oil , you will have more of a cusion in your bearings cus the oil will take the heat and stay thicker at higher temps

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CoreyR &raquo;</TD></TR><TR><TD CLASS="quote">are you running the shitty stock y8 pump? that could be a cause. my car drops to about 15psi at idle when its hot (z6), and im running 20w50. cold idle its at 80+. i would suspect if your running thin oil like 5w30 it could be getting really thin at high temps</TD></TR></TABLE>

i am running the y8 pump. what other options do i have.

platinum

 

a z6 pump.

 

why is the z6 pump any better. will it raise the pressure, or is it just a better pump in general.

 

as the oil gets that hot, it will get real thin, wich will give u low oil pressure
as long as u get 12 psi or more at idle when normal driving, ur ok

worry if the low oil pressure its still low under normal driving, then it means ur loosing oil pressure , and its usually a good sign of bearings going bad

get a oil cooler, it will help tons, u dont want more than 235 temps on oil anyways, to be safe
it will not drop the oil pressure
IMPORTANT, if u get a B&M oil cooler, the fitting on that kit is american and not metric, if u used the Honda filter there, it will be popping out
beware, it already happened to me a few times before i figured it out

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by USDM 4G VTEC &raquo;</TD></TR><TR><TD CLASS="quote">as the oil gets that hot, it will get real thin, wich will give u low oil pressure
as long as u get 12 psi or more at idle when normal driving, ur ok

worry if the low oil pressure its still low under normal driving, then it means ur loosing oil pressure , and its usually a good sign of bearings going bad

get a oil cooler, it will help tons, u dont want more than 235 temps on oil anyways, to be safe
it will not drop the oil pressure
IMPORTANT, if u get a B&M oil cooler, the fitting on that kit is american and not metric, if u used the Honda filter there, it will be popping out
beware, it already happened to me a few times before i figured it out</TD></TR></TABLE>

good info.

i have solid oil pressure numbers when driving the car. just a little low at idle when running hard.

i have a serab (spelling) oil cooler sitting in my garage i guess i could hook up.

should i try the thicker oil 1st or figure out how to how this cooler up. i thought for sure that would lower the pressure even more.

platinum

 

the z6 pump flows better, from what i read its pretty common to spin a bearing on a y8 becuase the oil pump cant keep up with higher revs. supposedly the z6 pump flow alot better. might want to look into that along with an oil cooler

 

damit it i just got her built and now i gotta take it apart again....

thanks for all the info guys. keep it coming

platinum

 

so the z6 pump fits the y8? i didnt know that....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by platinum00 &raquo;</TD></TR><TR><TD CLASS="quote">damit it i just got her built and now i gotta take it apart again....

thanks for all the info guys. keep it coming

platinum</TD></TR></TABLE>

hold on there; yes the obd2 pumps are crappier than the previous generations BUT all D16 oil pumps are crap. They dont have extra capacity that a B pump does.

At the very least you should find a Z6 pump and "optimize" it. Either do it yourself or send it to endyn.

Also consider a ball-valve type oil restrictor. expletive the turbo if your motor looses oil pressure it dies and that costs a lot more than rebuilding a T3 based turbo. Besides a journal bearing turbo needs a lot less oil than most people think, especially if you're watercooling it.

/edit: and run mobil 15w50 synthetic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rextec &raquo;</TD></TR><TR><TD CLASS="quote">so the z6 pump fits the y8? i didnt know that....</TD></TR></TABLE>

it does but you have to modify the oil pan slightly or use an obd 1 pan; dont remember exactly

 

what's a ball-valve type oil restrictor? is this the restricter before the turbo for the right oil pressure at the turbo.

can you explain how this works a bit


platinum

 

i run 10W40 here........perfect for boosted application........not to thin and not to thick!

 

You can run a Z6 pump on a Y8, but then you won't have a dipstick.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by platinum00 &raquo;</TD></TR><TR><TD CLASS="quote">

water temps are good, around 200 - 210. i use a samwich plate on the oil filter for all my fittings. could that have something to do with it.

platinum</TD></TR></TABLE>

I thought mine had a blown head gasket already because it was running 200-202. Sounds like this is normal for this ramhorn manifolds because jesus, they get hot! I burnt the hell out of my arm accidently.

Have any of you used the German Catrol Oil? All benz, porsche cars use this and it is available at Autozone. You can also get it at these dealers (if you want to be raped.) Autozone is where I get it. Check out http://www.bobistheoilguy.com for oil analysis on this stuff. Awesome stuff, plus it is green..

 

Mine use to be like 14-15psi at idle tell i did my oil pump mods and it went to 18 at idle

 

PLus u guys have hot weather up there. i would run 15 40 thats what i ran and i found it to be better then the 10 w30

 

I run 20-50 in the summer, I experience the same thing, about 10 psi or so at idle with 10-30. 20-50 picks it up. I am also running a Y series pump but it pulls 95 psi at cold idle so I think it's good