Rb30 Stagea Question

[pintaline]

so, question to anyone with an RB30 in the stag, did you have to do anything to make it fit height wise?? i have heard/read that stags have a little more space under the bonnet compared to skylines but does that mean that they will drop straight in and clear the strut brace and bonnet? or is the just less work to do to make it fit? ill be running a front facing plenum from CPC so that will make it a bit lower overall, will that be enough??

D.

[KiwiRS4T]

You'll have to ask Duncan - I don't recall him having any problems. I'm about a week away (at last) from dropping the motor in. It will fit OK but I have a high rise manifold (like a 6boost) so I'm not too sure about the strut brace but we're Kiwis so we'll make it fit!

[chuckie]

Brads has RB30/26 in his not sure if he has 4wd adapter on it as this Adds 8 to 10 mm,

but that should be cool as its Sump lower & not Block hicher,

You have to remember that if your going side intake you will have heap`s ,as there is 110mm between Motor & Strutbrace ,

there is 30 + mm between Intake on stock setup & Brace so no reason why it should be a worry .

[wolverine]

I believe the RB30 block is about 1" taller so with a stock plenum it might foul on the strut brace or it might not, as chuckie has posted above.

Assuming you use a front facing plenum you should be fine.

[unique1]

yep i got the 26/30 in mine and it fits under the bonnet no probs, so i guess a 25 head with forward facing plenum would be the same.

Edited January 18, 2011 by unique1

[pintaline]

so all engine mounts fit withount any modding like redrilling holes or anything?

was talking to the dude at the shop im getting to build my engine and he wont believe that it wont fit straight in... he's only done skylines which need the engine to be lowered.

D.

[Duncan]

yeah mine fit straight in too 25/30, but I do have a front facing plenum. remember in most skylines it is the timing cover that hits not the intake.

only issue was clearance for the strutbrace over the high mount turbo's heat shield, and only then only a few mm.

[Raysboostin]

only issue was clearance for the strutbrace over the high mount turbo's heat shield, and only then only a few mm.

is there enough room to low mount the turbo??

[pintaline]

yeh thats another good point, would there be any change to clearance of the turbo to the strut tower? im planning on low mounting a gt30 on the standard manifold......

D.

[bubba]

Yes clearance to the strut tower is reduced slightly as our engines are canted to the passenger side, so the 38mm increase in deck height pushes everything over a bit, it's only about 5mm though.

[Duncan]

anythign sensible or low mount is fine. but i have a high mount ebay turbo on a ebay manifold

[bubba]

So tempted to drop the 25 in the skyline and the 30 in the wagon

Reckon a 25DE (non VCT head) would bolt on to a Neo bottom end?

[Duncan]

can't see why not.....AFAIK the neo bottom end is the same, the changes are in the head.

[pintaline]

isnt the 25DE non vct head the one that will bolt straight on to an RB30 block?? im pretty sure theres a difference anyway between vct and non vct , vct blocks have different galleries for the vct oil supply to the head which is what you have to modify to use the 30 block.

D.

[bubba]

Yes, the R32 RB25DE (non VCT) head bolts straight up.

My dilemma is that I have a 25/30 with the above mentioned head, in pieces, and the block is already drilled/tapped for an adapter plate (from a previous life)..

I could drop the complete Neo into the 32 but then I would have wiring/management dramas, likewise if I put the 25/30 (with non-vct head) in the Stagea.

OR, seeing as the 32 is already licensed with the 3L, I could just get a wrecker bottom end for the 32 and put the build, adapted bottom end in the wagoon.

AHHHHHHHH DECISIONS DECISIONS

Edited January 24, 2011 by bubba

[pipster11]

well apparently the awd rb25 blocks are drilled for both awd and rwd sumps

so you could bung up the vct feed and slap the 25de head on

and slap a rwd sump on it

Edited January 24, 2011 by pipster11

[QWK32]

Any lift in head hight a RB30 block gives would be a benefit to any larger frame low mounted turbo. Its not really the strut tower that is an issue but the chasis rail.

On my RB25 with a low mounted GT35 I have bugger all clearance between the comp cover and chasis rail, even had to manipulate some of the AC lines mounted on the rail to give the turbo better clearance.

There is more than enough clearance to the strut tower, even if it comes over another 5 or so mm. That extra clearance to the chasis rail that the added height the RB30 gives would be good.

Edited January 25, 2011 by QWK32

[bubba]

well apparently the awd rb25 blocks are drilled for both awd and rwd sumps

so you could bung up the vct feed and slap the 25de head on

and slap a rwd sump on it

They are but I have decided to go for a wrecker bottom end and keep the 32 a 3L, need to get it back together and move it on, will finish building the other bottom end and chuck it in the Stag once the 32 is gone.

[pintaline]

Any lift in head hight a RB30 block gives would be a benefit to any larger frame low mounted turbo. Its not really the strut tower that is an issue but the chasis rail.

On my RB25 with a low mounted GT35 I have bugger all clearance between the comp cover and chasis rail, even had to manipulate some of the AC lines mounted on the rail to give the turbo better clearance.

There is more than enough clearance to the strut tower, even if it comes over another 5 or so mm. That extra clearance to the chasis rail that the added height the RB30 gives would be good.

awesome, thats what i wana hear.....

D.

[wolverine]

well apparently the awd rb25 blocks are drilled for both awd and rwd sumps

so you could bung up the vct feed and slap the 25de head on

and slap a rwd sump on it

Is anyone able to absolutely confirm this for me?