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R33 Rb30 Conversion

JNR24

By JNR24,
in Engines & Forced Induction

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Duncan
Duncan

Just thought I would bump this 20 year old thread because the Skid Factory have just posted up a video summarising a lot of the content, format might be more familiar for newer members

JNR24
JNR24

fyi guys, Well yesturday i picked up a RB30 for my conversion into my R33. I will be using my RB25DET head on the RB30 block. So i started stripping the motor down, pulled the crank, pistons, girdle

Cubes
Cubes

Here is all I have at the moment: http://www.geocities.com/r32_jjc/ Unless you are on broad band make sure you right click then save as. The file is around 120kb. If there is anything I have got w

Posted Images

Cubes Grand Master

Cubes

Posted
Posted

I'm really not sure what you mean.

The RB30 block has a predrilled and tapped hole for the new tensioner location as an RB30 only uses one tensioner and no idler on the drivers side or when looking at the block the left side of the block.

Cubes Grand Master

Cubes

Posted
Posted

Found a pic of my block as it was being built up.

As you can see the flat surface around the place where the tensioner will go.

Mine was a Series II VL Wagon Exec NA Block.

Are the blocks you have Series 1 blocks? Do they have the oil and water lines already tapped? If not they are series 1 blocks.

Cubes Grand Master

Cubes

Posted
Posted

Are you going to use stainless steel welsh plugs or brass ones as per pic 1?

EDIT: Also the fuel consumption I am getting is pretty damn good..

Slightly better than what the rb20t was getting. :D

The RB20t was getting around 11L/100km's.

Alf Proficient

Alf

Posted
Posted
heres the pics. i have 3 blocks like the first pic and the other is a genuine vl turbo block

I have a VL na S2 block and it looks like this.

attachment.php?attachmentid=25142

Now I know that VLT and VL na S2 blocks are the same but if you look under the engine block number it will have a number.

6=na

8=turbo

mines a 6 :D

dnb Rising Star

dnb

Posted
Posted

well its all tapped for turbo gear from the factory so its a bit wierd!

also i have another turbo block that doesnt have the machined surface for the tensioner.

so its 5 blocks in total all of which are tapped from the factory.

2 turbo blocks wearing an 8 under the engine number.only 1 has the machined surface!

3 na blocks all of which have no machined surface

Gilly Contributor

Gilly

Posted
Posted

dnb My block is the same as yours and it has all the oil and water lines tapped aswell. I have already had it Torqueplate bored, honed and o'ringed so I was thinking of making a washer the right shape and fill around it with devcon (steel putty) and file it back level with the other surfaces. I have bought a second tensioner instead of the idler. I also have to make an adopter plate to fit a 4wd sump as it will be going into a GTS4.

Alf Proficient

Alf

Posted
Posted
what about the na blocks that ARE tapped but have no machined surface?.

you deleted your post alf! now this looks silly

sorry, getting confused here.

Ok, i've had this convo about rb30 na blocks before with several knowledgable ppl.

Everyone says the s1 rb30 block doesnt have tapped holes for oil and doesn't have the machined surface.. but the same ppl have seen a few s1 blocks with tapped holes.

dnb Rising Star

dnb

Posted
Posted

haha yeah ive had that block done aswell;( its cool though as im selling my old sohc set up to a guy who will buy this block off me as its ready to go. i was gonna do the devcon trick aswell but since i have the option to unload it and i have another block sitting there i will just get the other one machined up.

i think this had better be mentioned in the rb2530 conversion guide!

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