oil pressure.. Dry sump.

[gary_808]

hope this is the right section,

basically my friend has fitted a 7m-gte to a capri,

and in doing so he made his own dry sump kit up,

but we can't find what sort of oil pressure it should be running any where,
he's ditched the original oil cooler set up,
it has plenty of flow,

just need some pressure figures it should be running really,

it's running about 6psi on idle, and 40 at 2k rpm

and help would be awesome

cheers

[wiseco7mgt]

I can tell you what mine makes if that helps, i have no idea though what a perfect pressure for the 7m is, an expert like IJ will have a better idea of what that is. The oil I'm using is 5-30 Castrol synthetic.
Cold 80-90psi, warm at idle 30-40psi, warm at cruise 50-70 (oil pump not shimmed).
Are the dry sump setups rpm adjustable on the pumps?

[grimreaper]

^ that is amazingly above average for an unshimmed pump.

I see 40-50psi by 2000rpm(hot) and thats pretty much where it stays after that...
10psi at hot idle. Full flow oil cooler is the only mod to oil system

[gary_808]

ah awesome that sounds good then. as he is running that when warm,

he was just abit iffy as he's couldn't find much info on it.

cheers

[wiseco7mgt]

^ that is amazingly above average for an unshimmed pump.

I see 40-50psi by 2000rpm(hot) and thats pretty much where it stays after that...
10psi at hot idle. Full flow oil cooler is the only mod to oil system

I didn't say the block or internals were stock

[gary_808]

I can tell you what mine makes if that helps, i have no idea though what a perfect pressure for the 7m is, an expert like IJ will have a better idea of what that is. The oil I'm using is 5-30 Castrol synthetic.
Cold 80-90psi, warm at idle 30-40psi, warm at cruise 50-70 (oil pump not shimmed).
Are the dry sump setups rpm adjustable on the pumps?

they're adjustable in the sense you can buy many different pulleys,

but already over driving it a little bit.

[fixitman04]

picts of the dry sump setup please!

[gaboonviper85]

I didn't say the block or internals were stock

Internals make zero change to pressure...only things that will effect pressure is:

1 bearing clearance
2 piston squirters
3 pump
4 pump bypass valve (shims come in here)
5 oil cooler setup
6 oil weight
7 oil temp
8 rpms

so what I want to know is how you get over 40 psi oil pressure.

[wiseco7mgt]

Internals make zero change to pressure...only things that will effect pressure is:

1 bearing clearance
2 piston squirters
3 pump
4 pump bypass valve (shims come in here)
5 oil cooler setup
6 oil weight
7 oil temp
8 rpms

so what I want to know is how you get over 40 psi oil pressure.

Sorry to not reply sooner, i wasn't able to access the supramania from my isp.
Yes i did say my internals weren't stock and last i checked most of the things you mentioned are actually internal so yes they will affect the oil pressure.
I use a Speco remote filter relocation kit with all -10AN fittings and i use a larger z9 oil filter.

The biggest difference but is made by using a early jap block without the oil squirters, i bought a front cut that had done 47,000klms so it was like new inside and started with that. I can only guess not having the squirters, that they must rob you of a lot of pressure , I'm sure there must be people on here that have used both blocks so i hope they chime in and confirm or deny this.

[IJ.]

No squirters and losing the Joke Toyota cooler circuit is Key Pete, I've ran NA-t a lot and always had brilliant pressures running GTE pumps.