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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

dano4127 Veteran

dano4127

Posted
Posted

have done some serious searching on the XR6 turbo topic not "that" much out there but from what I can see it should be fairly suited to the 3L bottom end

anyone got anything to add regarding this turbo?

SirRacer Experienced

SirRacer

Posted
Posted
Hi Guys,

Ok well if all goes to plan I am buying a 25/30 in the near future the motor It is one of the RIPS ones from NZ

http://www.ripsltd.co.nz/performance/products.html

It has an R32 RB25DE head I am putting this into my series one R33 GTST motor is being supplied with loom and stock 32 computer, so heres the question:

What will be involved in hooking up my RB25DET PFC to this motor?

I was thinking for ease of conversion just fitting the motor up and getting it all going with the supplied computer later as I can have the car off the road for too long to start with then revisiting the computer side a little later on although if there is not much to it i would prefer to be running the show with the power FC

One thing I was also wondering about will my Splitfires fit this head?

Motor is being delivered with a new XR6 Turbo fitted up, is that basically a GT30? Should it make decent power with that?

Initial goals once I put injectors in would be 300kw (only stock injectors to begin with)

Cheers,

Dan

Why buy an exorbitantly priced RIPS engine when you can build you thats easily as good locally and for probably much cheaper? Spoolup can sell you half the parts here.

Its all in this thread.

I looked into the PFC for ages also and its probably much easier to change the computer. A link G3 computer with wasted spark is a great setup at half the power fc price, simply as you wont find a 32power fc computer, and modifying a 33 one is lots of unknowns

R34GTFOUR Mentor

R34GTFOUR

Posted
Posted
have done some serious searching on the XR6 turbo topic not "that" much out there but from what I can see it should be fairly suited to the 3L bottom end

anyone got anything to add regarding this turbo?

the xr6 turbo is a genuine garrett 35/40 and is a spot on turbo for the 3L bottom end in respect to topend power and response. Just look at some of the dyno results with the 35/40 and you can see how well it performs. The only difference i'ce noticed is the xr6 turbo has a slightly different front cover (doesnt effect anthing, just looks different), and is internally gated with a 1.06 rear housing. If you talk to different people some will recommend the .82 housing over the 1.06, but i think any difference would be minimal with spoolup time with the 3L bottom end anyway.

Good thing about the xr6 turbo is that they go pretty cheap (all the xr6 boys upgrade) so you can cash in on that. A mate of mine has 460rwhp on 19psi boost on his xr6turbo and another has just pumped over 550rwhp on the stock turbo (gets full boost by 2500rpm). Bloody great turbo imo

fr0st Experienced

fr0st

Posted
Posted

Has anyone else had problems getting the crank timing pulley off the RB30 crank?

It's supposed to slide on and off according to the service manual but mine is fairly wedged on. Blow torch and pry bar moved it far enough to ease the crank out of the block but I still need to get the old oil pump off :)

Also, while everyone is talking about turbos... am I being optimistic to think a Trust T78-33D with its smallest (14cm) housing would get close to full boost by 4.5k rpm? I know it all depends on cams, tune and all the rest. I'm just looking for a round about figure to estimate it's response. I don't really want to buy it if it comes on way too late and makes the car useless for anything but the drags.

Block is going off for a bore and hone tomorrow to suit the CP Pistons then I get to start assembling and hopefully I'll be running it in for the new year.

R34GTFOUR Mentor

R34GTFOUR

Posted
Posted
Has anyone else had problems getting the crank timing pulley off the RB30 crank?

It's supposed to slide on and off according to the service manual but mine is fairly wedged on. Blow torch and pry bar moved it far enough to ease the crank out of the block but I still need to get the old oil pump off :domokun:

Also, while everyone is talking about turbos... am I being optimistic to think a Trust T78-33D with its smallest (14cm) housing would get close to full boost by 4.5k rpm? I know it all depends on cams, tune and all the rest. I'm just looking for a round about figure to estimate it's response. I don't really want to buy it if it comes on way too late and makes the car useless for anything but the drags.

Block is going off for a bore and hone tomorrow to suit the CP Pistons then I get to start assembling and hopefully I'll be running it in for the new year.

the harmonic balancer is on a key and is pressed on when the bolt is tighted up, so once the bolt is undone its still pressed on. You needed a harmonic balancer puller (supercheap sells them), and woolaa off it comes.

fr0st Experienced

fr0st

Posted
Posted
the harmonic balancer is on a key and is pressed on when the bolt is tighted up, so once the bolt is undone its still pressed on. You needed a harmonic balancer puller (supercheap sells them), and woolaa off it comes.

The balancer is off, its the sprocket between the balancer and the oil pump that the timing belt sits on. I've got a puller, its just got no holes to attach bolts to. I'll probably have to drill and tap some?

It 'should' just slide off, but its being a major pain in the ass

shanef Grand Master

shanef

Posted
Posted
Cubes - they will be a stroker crank for the RB30 block - aiming for 3.4 litre.

Billet forged 4340 with wide oil pump drive.

interesting...

have done some serious searching on the XR6 turbo topic not "that" much out there but from what I can see it should be fairly suited to the 3L bottom end

anyone got anything to add regarding this turbo?

>GT42R or fail :domokun:

R34NRG Grand Master

R34NRG

Posted
Posted
RB30 block

actually he dosnt. i asked him when i saw him. unless i misunderstood but he explained his using something else. he complained that a 3.0L was to much of a hassle. he used something smaller size wise. :domokun:

r33_racer Grand Master

r33_racer

Posted
Posted

awesome news brad! Kyle was talking about doing a stroker conversion kit for the rb30's to bring it up to 3.3 or 3.4 litres also. But that was a little while ago. If youve got it going already thats great.'

I think we will be due to build a new race motor in the new year when we get back from the states. Depending on price, I could con my father into a stroked rb30 if its not too exxy.

dano4127 Veteran

dano4127

Posted
Posted
Why buy an exorbitantly priced RIPS engine when you can build you thats easily as good locally and for probably much cheaper? Spoolup can sell you half the parts here.

Its all in this thread.

I looked into the PFC for ages also and its probably much easier to change the computer. A link G3 computer with wasted spark is a great setup at half the power fc price, simply as you wont find a 32power fc computer, and modifying a 33 one is lots of unknowns

Im buying a RIPS engine that someone else imported into australia that didnt end up fitting up in his 260z

$4500 gets me the RIPS RB30DET Motor+XR6 Turbo+Heavy-duty Clutch+RIPS Forward facing Plenum/Throttle body - nothing has been run yet all new

Tell me thats not a good deal?

I had not really thought of it but I guess I could swap the heads on the two motors and I could save myself a bunch of dramas aye only thing is how would that go in regard to the forward facing plenum? would the RB25DE be the same fit up as the RB25DET???

Basically I want the smoothest transition possible...

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