remote oil filter and cooler setup help

[Disturbed1]

just a quicky question - i know most people tend to run the biggest possible (-10 or even -12 fittings and lines) but the blocks which i happened to buy (which wernt exactly cheap) only have -8

atm im just running the filter relocation aspect and on the oil pressure guage - noticing good consistent pressure yet im worried that when i add the cooler inline, i may begine ot have dramas.

how can i tell if the setup is two small? as long as im making reasonable pressure, am i safe??

i have a 7mgte which is highly modified (albiet stock motor - pushing around 500 hp) and will be used for drifting. i curently have about 60 psi on start up and around 65-70 at full rpm. havent checked idle pressure as such

also for a track car that will always be getting hammered - is a thermostat or pressure relief valve required??

cheers

[cambelt]

Dont worry about hot idle . 7MGT,s just tickle 7Psi hot for a unbuilt motor.
Dave

[SuperDave]

The stock oil cooler for the 300zx tt has oil lines that are about the same size as a -6AN. The cooler itself is relatively small at a little less than the size of an A5 piece of paper for 300hp. Not sure if that information is helpful, but is there for the taking.
I'm using -10AN on my setup along with an external oil thermostat. The thermostat just helps the oil warm up quicker, so a dedicated track car wont need it. The cooler size and style is the main thing to worry about. Don't buy a tube-and-fin cooler (aka 's' bend), get a proper plate-and-fin style. Earl's Australia were pretty helpful in sizing my cooler, contact them and see what they think about your application.

[Disturbed1]

sorry made a mistake - my setup is dash 8 not dash 6

[thechuckster]

size of piping/fittings depends on whether you are using the factory oil cooling connection (takes excess oil from pump/filter, cools it and dumps it into the sump) or a full-flow setup like you are envisaging.

Any restriction in the later setup is bad. Dash-10 would be a sensible selection for a remote cooler & filter.

[Disturbed1]

size of piping/fittings depends on whether you are using the factory oil cooling connection (takes excess oil from pump/filter, cools it and dumps it into the sump) or a full-flow setup like you are envisaging.

Any restriction in the later setup is bad. Dash-10 would be a sensible selection for a remote cooler & filter.

from how i understand your post - is the latter

this is my setup atm

[allencr]

What's the ID of the pickup tube?
I don't think the output could ever outpace the draw, so someplace between it and the size of the oil gallery in the block, with a little extra for the lousy 90degree bends & length & such.

is a thermostat or pressure relief valve required??

A thermostat is usfull on a short trip daily driver that has a cooler, and not on a pre-warmed thrashed & abused to the limit race engine.
A relief valve is required on any system that has a pump capable of breaking a filter or itself when it has cold fluid, high rpm or restricted output.

[Disturbed1]

lousy 90 deg bends

[oldcorollas]

maybe you are not worried abotu the length of time it takes to warm up, but you may need some restriction (such as a plate with a hole drilled) to provide restriction int he water system, to increase the pressure in the block to stop boiling at hotspots..

radiator pressure relief? if you don7t want the radiator or pipes to burst, yes.
oil pressure relief? aren7t they built into the oil pump?
as for worry abotut he cooler core being restrictive, mayeb you can put in a pressure relief to bypass the core when the pressure drop is too high.

[Disturbed1]

attached 2 x oil pressure gauges to the car today - 1 on the remote filter sandwich plate and the other on a oil gallery on the block (where the factory one usually goes)

when the 1 on the sandwich plate reads 60 psi, the one on the block reads 50. so appears to be a 10 psi pressure drop. will this always be the case reading pre oil filter as compared to the oil gallery in the block?

or is this a pressure drop beause of my -8 lines and fittings

cheers

[rick q]

Before getting too concerned, swap the gauges to cancel out any inaccuracy in the gauges themselves i.e. one might be reading high and the other low.