Rb25/30 With Gq Patrol Sump

[Leithy]

Hey I got a 25/30 with a gq sump on it. Now before I try see if it will drop straight in without a problem or foul the sump on the power steering. Does anyone know if it fits or I'm better off putting 25 sump on straight away. This is pic of the sump

[Duncan]

wow. that sump is going to foul on the road, don't worry about the power steering

[Leithy]

Haha I just wanna check before I got changing sumps lol. Plus this one looks like can hold more oil so thought could be good if it would fit haha

[Ben C34]

No way would that fit.

Pull the sump off and shim the stock oil pressure relief valve.

[Leithy]

It's got a 25 pump on it already with restrictors, I got a oil drain kit for back of the head to go on and that should be all good? Just need to weld a drain fitting on the 25 sump

[Ben C34]

Oh. So it already had the sump off?

And it's not a drain. It's a breather.

Have a look at the oil control thread.

[Leithy]

Yeah been rebuilt, 25 head and put into a gq patrol. Now I'm putting it into a r33, and it's spool oil drain kit I got put on it aswell, I don't wanna have issues with all oil going up In the head, it ran high oil pressure in the patrol and even with restrictors still think it will need a head drain

[Ben C34]

Ok.

It's not a drain though!

Like I said, read the oil control thread.

[Leithy]

Will do mate

[Leithy]

So this is just a breather?

[KiwiRS4T]

So this is just a breather?

In my view it's completely redundant. Try and sell it to someone who believes it's useful.

[GTRPSI]

So this is just a breather?

Yep, the person who fitted it thought it was a drain though by running it under the hot side, if of any use should have been turned the other way and run to the cold side as a breather.

Yes very redundant these days, there are better ways around this.

[Leithy]

What better ways are around this?

[Ben C34]

Have you looked at the oil control thread yet?

Just the last 5 pages should do it.

[GTRPSI]

Vent the sump blowby straight out of the sump to a catch can.

Its about equalizing sump and head blowby pressure, while the blowby wants to run up the oil drains to the cover breathers the oil cannot drain back down in a nut shell...

[Ramius83]

PM sent........

[Simon-S14]

take the 25 oil pump out and put the 30 one back in

[Leithy]

30 pump stronger? And this 25 pump has had the relief valves modified and runs more pressure

Edited August 6, 2014 by Leithy

[Simon-S14]

30 pump is prettybulletproof.

you can do the same to the relief on the 30 pump, remove large bolt. add 2x m10 washers on top of spring. refit.

[Ben C34]

Saying "relief valve modified" does sound alot fancier than two washers under the spring !