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Head To Sump Oil Return

vspec_gtr32

By vspec_gtr32,
in Engines & Forced Induction

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vspec_gtr32 Community Regular

vspec_gtr32

Posted
Posted

as tittle says, been trying to find some pic's of how it's done..

i know the head is drilled and tapped and a fitting is put in then a return line is fitted and another hole is drilled and tapped to the sump..

where exactly is this done on the head...eg front, left side, right side, back ect..

where exactly is this done on the sump... front, rear ect...

any one got any pics to show us???

Any help much appreciated

Aaron

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sly32 Proficient

sly32

Posted
Posted

hey man, from what i can tell it goes from the top welsh plug at the back of the engine, and down to the sump (un sure where) it goes under the plenum side so im guessing anywhere really aslong as its higher than all the oil so it works well,

got a pic, i took it from the oil control thread on this forum, may be some more pictures? would be worth a look?

post-17389-1234093630_thumb.png

Phobic Collaborator

Phobic

Posted
Posted

heaps of people just fabricate a fitting to do the job. the return is then plumbed back into the sump on the plenum side becasue of the way the crank turns it helps to promote flow into the sump and not get sloshed back up from the crank.

400kw Collaborator

400kw

Posted
Posted
as tittle says, been trying to find some pic's of how it's done..

i know the head is drilled and tapped and a fitting is put in then a return line is fitted and another hole is drilled and tapped to the sump..

where exactly is this done on the head...eg front, left side, right side, back ect..

where exactly is this done on the sump... front, rear ect...

any one got any pics to show us???

Any help much appreciated

Aaron

TUFFRX3 ,makes dash 10 and dash 8 press in fittings for the oil drain off the back of the head ,i have just brought some .no drilling needed ,just press it in and its done .i think he has some pix loaded in the for sale section

cheers

Travis Trayhern Proficient

Travis Trayhern

Posted
Posted
They really are not needed...

i have been told this to by my tuning shop is this true guys? im just building my engine now it has a greddy oil pump got a oil restrictor for head and trust sump extension do i need this return line?

vspec_gtr32 Community Regular

vspec_gtr32

Posted
  • Author
Posted (edited)

cheers for the pic sly32...

what i read must have been way off, those welsh plug oil drain seem to be the way to go....

cheers to r33cruiser i'm definetly getting one from spool,

only $110 for the oil drain or $250 for the kit with the oil drain, speedflow fittings and hose...

Edited by vspec_gtr32
skylinekid Proficient

skylinekid

Posted
Posted
cheers for the pic sly32...

what i read must have been way off, those welsh plug oil drain seem to be the way to go....

cheers to r33cruiser i'm definetly getting one from spool,

only $110 for the oil drain or $250 for the kit with the oil drain, speedflow fittings and hose...

the questions is... i hear ppl call them just a bandaid fix to a problem... ne other comments on whether there really needed

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)
the questions is... i hear ppl call them just a bandaid fix to a problem... ne other comments on whether there really needed

not required...they dont drain anything substancial...they actually vent the sump on big clearanced race engines. On a properly built street engine they are waste of money, time and damage to firewall.

Notice two fuel rails on the picture supplied in post #2 (it was from another thread that i posted this picture in) Its a big $$ big clearanced racing engine.

Edited by DiRTgarage
MBS206 Grand Master

MBS206

Posted
Posted (edited)
TUFFRX3 ,makes dash 10 and dash 8 press in fittings for the oil drain off the back of the head ,i have just brought some .no drilling needed ,just press it in and its done .i think he has some pix loaded in the for sale section

cheers

And IMO, they're shit.

I have one on my R33... There is NO CHANCE you can ever fit the 90 degree bend whilst the head is in place, without unbolting the engine mounts and lowering the engine.

Once you have it on, it sits in the way of the heat hoses, and then, still sits hard against the firewall.

If I had my time again, I wouldn't do it.

Forgot to mention, I'm only running the dash 8... No idea how the people with Dash 10s fitted theirs!

Edited by MBS206
Cartman Rising Star

Cartman

Posted
Posted
And IMO, they're shit.

I have one on my R33... There is NO CHANCE you can ever fit the 90 degree bend whilst the head is in place, without unbolting the engine mounts and lowering the engine.

Once you have it on, it sits in the way of the heat hoses, and then, still sits hard against the firewall.

If I had my time again, I wouldn't do it.

Forgot to mention, I'm only running the dash 8... No idea how the people with Dash 10s fitted theirs!

couldnt agree more.. sure there cheap.. but not suited at all.. the ones from spool are a much better option!

shanef Grand Master

shanef

Posted
Posted
Well its been covered in past threads if he needed to find out why, but then its been posted in here as well since

i know it has.

i was just bringing to light ur yet again hypocritical ramblings. ur the first to pull up others on totally useless posts that have a suggestion but no fact to back them up.

just keeping u on ur toes :D

shanef Grand Master

shanef

Posted
Posted
not required...they dont drain anything substancial...they actually vent the sump on big clearanced race engines. On a properly built street engine they are waste of money, time and damage to firewall.

Notice two fuel rails on the picture supplied in post #2 (it was from another thread that i posted this picture in) Its a big $$ big clearanced racing engine.

paul, im curious to know how the drain vents the sump. i have a rough idea of where ur going but if u wouldnt mind can u elaborate please

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
i know it has.

i was just bringing to light ur yet again hypocritical ramblings. ur the first to pull up others on totally useless posts that have a suggestion but no fact to back them up.

just keeping u on ur toes :D

no fact? easy now :D

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