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RB30 Oil pump Vs RB26DETT Oil pump

JNR24

By JNR24,
in General Automotive Discussion

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SteveL Mentor

SteveL

Posted
Posted

I should also say that I remembered reading somewhere that the the RB26DETT crank nose is larger in diameter than the other RB engines. If this is correct, then the ID of the pump gear will also be larger. I can actually confirm this if you like as I have an RB26 oil pump on the bench, and RB30E one (buried somewhere)....let me know.

As for the water pumps, don't know for sure, but it's possible the RB26 type would have a higher flow rate as it has to feed 2 turbos - but then again, the same thing could be achieved using a smaller diam pulley....

JNR24 Proficient

JNR24

Posted
  • Author
Posted

Good question Joel, :)

I think Tomie/Jun? make a adapter for this. I just have to speak to a few people and see who sells them. I havent started looking for that just yet. As i am trying to find a set of good cheap forgies, i think there called Aries? "rocket industries" make em. got a quote off a guy on here for $1100 with rings!!! :)

So iam just buying all the little cheapy bolt ons that i will need for later, like this oil & water pump. But thanks for bringing this to my attn.

So were are you at with your RB30 build? progressing?

PS: if you find a place that sell them, drop me a PM.

PPS: also for oil squirters.

Cheers,

Joel!

Cubes Grand Master

Cubes

Posted
Posted

Let me know where you get the jun adaptor and pistons etc.

Do the pistons have to have provision for the oil squirters?

Or pistons are pistons oil squirters or not?

I'm using the oil squirters from my RB20DET.

I'm at the stage where i'm just getting all the bits together.

OVL-747 Enthusiast

OVL-747

Posted
Posted

differences between rb30 and rb30t are as said above , plus the rb30t releif spring is about 4 mm longer.

the gtr pump is i think same size as rb30t pump , but has different shaped gears and the releif valve is slightly larger diameter.

best to check though.

a mate is using a gtr pump on his vlt

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