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Gq Rb30Det

zac320

By zac320,
in Engines & Forced Induction

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zac320 Enthusiast

zac320

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Hey guys well i have a rb25 powered patrol, going the 30DET root. I have the block here and the head. Heads off tomorow to get get the oil gallery plugged up. I need oil restrictors for the head yes? Where do i buy these from? Can anyone point me in the right direction? Yes ive searched and searched. But there are so many different opinions as to what head gasket i should go? Can someone link me to one so i can go ahead and purchase. Ive heard i should go ones thats got built in o rings?

Thankyou. I have about 3 guides im reading in front of me.

Keep in mind i live in a country town and there are no such places as performance engine builders. Ive found one place that will screw the hole up in the head

Thanks Zac

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The Mafia Grand Master

The Mafia

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I got my restrictors from Lewis Engines. Ebay has a NZ place selling them super cheap : http://www.ebay.com.au/sch/i.html?_trksid=p3907.m570.l1313&_nkw=oil+restrictors+RB30&_sacat=0

I used 2 x 1.3mm restrictors and still ended up with oil in the catch can with 80psi of oil pressure above 5k.

If you're using an external oil feed for the VCT, I would suggest maybe going slightly smaller. Just my opinion, but there is a huge thread on oil restriction.

Regarding your second post - you MUST run restrictors no matter what. I didn't with my first build, and there was oil f**ken everywhere lol

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zac320 Enthusiast

zac320

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So do you reckon i should go 1mm or 1.2mm? Later on ill be runner a bigger garret turbo and say around 14PSI.

Im currently reading the 357 page thread and i think im confusing myself more and more. Hence why i created this thread.

Will the standard rb30 oil pump be suitable? I plan on rev limiting it to 7k maybe even 6.5k. Also should i go a standard rb26 head gasket? 1.2mm i belive they are?

Thanks heaps for your reply mate, we have no performance shops here so yous are my best help.

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KiwiRS4T Grand Master

KiwiRS4T

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So do you reckon i should go 1mm or 1.2mm? Later on ill be runner a bigger garret turbo and say around 14PSI.

Im currently reading the 357 page thread and i think im confusing myself more and more. Hence why i created this thread.

Will the standard rb30 oil pump be suitable? I plan on rev limiting it to 7k maybe even 6.5k. Also should i go a standard rb26 head gasket? 1.2mm i belive they are?

Thanks heaps for your reply mate, we have no performance shops here so yous are my best help.

I can sell you 2 x 1.0mm restrictors. That's what I have in my RB30/25 (with VCT).
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zac320 Enthusiast

zac320

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Hey guys well I bought a rebuilt rb30/25 that's already assembled. Just bare engine. The heads s2 but doesnt come with coils or anything and my old s1 engine comes with nearly brand new coils ect. So can I just swap all that over to turn it into a S1

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