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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

R31HOOCH Explorer

R31HOOCH

Posted
Posted

Yeah i have read some... Its just that its so damn big, there's so many different conversations about what i wanna know its all just a little confusing... Basically, i've got a perfectly good RB30ET block with f**k all km's on it, im planning on puttin the R32 RB25DE head on it with all aftermarket bolt on's... I just wanna know whether the E and ET blocks are basically the same and whether i just need to use the RB30E spec pistons to get the appropriate compression ratio??? If not, what would be best???

Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

If you are thinking about putting the head straight onto the rb30et block standard then it wont work. HOWEVER if you change the pistons to the NA spec then it will be ok.

The pistons in the rb30et are too low compression and the NA pistons should be used.

If you rebuild the rb30et block and put forged pistons in it to raise the compression up to the same for NA then it will be good.

Yeah i have read some... Its just that its so damn big, there's so many different conversations about what i wanna know its all just a little confusing... Basically, i've got a perfectly good RB30ET block with f**k all km's on it, im planning on puttin the R32 RB25DE head on it with all aftermarket bolt on's... I just wanna know whether the E and ET blocks are basically the same and whether i just need to use the RB30E spec pistons to get the appropriate compression ratio??? If not, what would be best???
FORZA-MOTORSPORT Proficient

FORZA-MOTORSPORT

Posted
Posted

Guys the RB30 vented coil pack covers are going to be cut soon any suggestions as to what is going to be on there would be great i have come up with at least a few say 2 or maybe 3.

"RB30 DET"

"RB30 DOHC"

"RB30 TWIN CAM TURBO"

"RB30 GODZILLA" for 4wd ones :wave:

"RB30 TORQUE MONSTA"

lukits01 Experienced

lukits01

Posted
Posted
Guys the RB30 vented coil pack covers are going to be cut soon any suggestions as to what is going to be on there would be great i have come up with at least a few say 2 or maybe 3.

"RB30 DET"

"RB30 DOHC"

"RB30 TWIN CAM TURBO"

"RB30 GODZILLA" for 4wd ones :dry:

"RB30 TORQUE MONSTA"

Maybe a "RB30 DOHC TURBO"

or " NISSAN 3000cc DOHC TURBO"

What did it say on the stock RB20/25 covers before?

dxcorolla Newbie

dxcorolla

Posted
Posted

r32 rb25de head stock with det valve springs big front facing plenum 80mm throttle body q45 afm. bottom end stockish rebuilt. shot peineed rods, and aftermarket rings, crank collar, either rb25 oil pump or n1

what would this turbo go like on it?

called a gt45

Inlet (Exducer/Hot Side) T-4 Flange 70.1mm x 82.55mm (2.76" x3.25").

*A/R 1.05 Exducer

*A/R 0.66 Compressor

*Cooling/Lubrication Oil

*Outlet (exducer/hot side) 4.25" V-Band

*Inlet (compressor/cold side) 109mm (4.25")

*Outlet (compressor/cold side) 86mm (3.38")

*Compressor major diameter 98 mm

my goal is 400-500rwhp. On a 20det modded manifold When would this size turbo start spooling and when would it hit full boost? 15psi. unsure of what exhaust manifold yet, either a 20det stock modded to fit the t4 flange or a whole custom mild steel one.

Can anyone help with some info on this? is this turbo 2 big?

Thanks

Sydneykid Grand Master

Sydneykid

Posted
Posted
r32 rb25de head stock with det valve springs big front facing plenum 80mm throttle body q45 afm. bottom end stockish rebuilt. shot peineed rods, and aftermarket rings, crank collar, either rb25 oil pump or n1

what would this turbo go like on it?

called a gt45

Inlet (Exducer/Hot Side) T-4 Flange 70.1mm x 82.55mm (2.76" x3.25").

*A/R 1.05 Exducer

*A/R 0.66 Compressor

*Cooling/Lubrication Oil

*Outlet (exducer/hot side) 4.25" V-Band

*Inlet (compressor/cold side) 109mm (4.25")

*Outlet (compressor/cold side) 86mm (3.38")

*Compressor major diameter 98 mm

my goal is 400-500rwhp. On a 20det modded manifold When would this size turbo start spooling and when would it hit full boost? 15psi. unsure of what exhaust manifold yet, either a 20det stock modded to fit the t4 flange or a whole custom mild steel one.

Can anyone help with some info on this? is this turbo 2 big?

Thanks

Too big, by a long way.

:D cheers ;)

PS; Shot peening used RB30 rods achieves almost nothing, spend the money on a set of ARP rod bolts

Bl4cK32 Grand Master

Bl4cK32

Posted
Posted
Guys the RB30 vented coil pack covers are going to be cut soon any suggestions as to what is going to be on there would be great i have come up with at least a few say 2 or maybe 3.

"RB30 DET"

"RB30 DOHC"

"RB30 TWIN CAM TURBO"

"RB30 GODZILLA" for 4wd ones :)

"RB30 TORQUE MONSTA"

how about "hey mr. policeman, i want a defect" :)

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