R33 Rb30 Conversion

[dnb]

yeah its whats behind the lower tensioner that is my prob. the 25 block has a machined surface for it where as the 30 block drops away by about 2mm on the inside and about 10mm on the outside.i have pics but my usb cable is missing damn it!

[Cubes]

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.

[dnb]

yes.im trying to explain as best i can.the hole that is tapped (as you stated)does not have a flat surface for the idler to sit against.

[Bl4cK32]

the idler isnt supposed to sit flat on the block...its spaced out a little if thats what u mean???

[dnb]

nah. i now know why you guys dont understand me! i have 4 rb30 blocks, 3 are as ive described,they are rb30e blocks.1 has the machined surface i need,it is an rb30et block.

i will get pics up soon.looks like i have discovered another thing to look out for!

[dnb]

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

[Cubes]

Wow..

That looks totally different to my block.. And Bl4ck32's block....

I will check out my sisters VL she is doing up.

[Cubes]

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]

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.

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

[Alf]

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.

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

[dnb]

dunno about the welch plugs,is one better than the other?

all the blocks i have are tapped for the oil and coolant lines.they come from series 1 and 2 commodores.i have never seen a block that isnt tapped.

[Cubes]

Interesting...

Looks like you have your self a S1 block.

[dnb]

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

[Alf]

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

Just have a look under the block number, easy sorted.

[Alf]

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

I'd say the turbo block that doesn't have the machined surface would be a series 1 turbo block.

[dnb]

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

you deleted your post alf! now this looks silly

[Trizae]

-Joel- ure getting better fuel econ? is that freeway driving or city driving? or both? what are you averaging a tank so far?

[Gilly]

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]

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]

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!