R33 Rb30 Conversion

[StockyMcStock]

wait till i post some pics with the M90 mounted on the engine as well

[GTR-Ben]

I hope my wee girl can make some good numbers.. I don't think a turbo much larger would fit under the bonnet lol.

[Cubes]

You've got to get us a sound clip of the rb30det with its cams Ben.

Edited November 29, 2005 by Cubes

[conan7772]

you certainly could low mount it, but it'd need a custom manifold. i have a GT40 1.34 rear and this is how big it is:

as you can see there's not a lot of chance of putting that anywhere near a standard manifold. it would be reasonably easy to do a low-mount tubular manifold and keep it so that the returning cooler pipe still made it over the top however.

the GT40 will make the power more easily (less boost) but your bottom-end power might suffer a bit. having said that, with good cams and good tuning there's no reason an RB30DET can't have brilliant off-boost response. it would build boost pretty quickly no matter what turbo is on it IMHO (within reason - GT60 GTFO)

the 35/40 1.06 rear would be a brilliant match, you'd have to push it pretty hard to get 320rwkw though.

<{POST_SNAPBACK}>

Would you expect the need to increase the injectors for the GT35/40 and better cams ?

Apparently the ECU needs upgrading as it only supports multipoint.

This I'm unhappy about...

[StockyMcStock]

shooting for 320rwkw i'd go anything above 600cc injectors. the standard ones obviously won't cut it.

[conan7772]

shooting for 320rwkw i'd go anything above 600cc injectors. the standard ones obviously won't cut it.

<{POST_SNAPBACK}>

how big are the stock ones anyway?

[Scribble]

About rods. This bloke Brad Goucher ( [email protected] ) gets custom made 4340 forged steel H beam rods especially for the RB30. Not a modified chev rod or anything. Also come standard with ARP2000 rod bolts and they are a very nice price if you ask me.

I havnt used them personally yet but i think im going to sway this way when it comes time for rod's. Send him an email for some pics. They look very nice to me.

[Craved]

what sort of power would guys think that an HKS 3040 with 1.12 AR rear housing would make on the RB30/25 with tomei poncams?

would that turbo flow enough for 400rwkw or so?

reason i ask is because i have finally found a block for a good enough price .. not super cheap but the best i found so far.. so im picking this up on the weekend and getting started on the build..

[[200]]

About rods. This bloke Brad Goucher ( [email protected] ) gets custom made 4340 forged steel H beam rods especially for the RB30. Not a modified chev rod or anything. Also come standard with ARP2000 rod bolts and they are a very nice price if you ask me.

I havnt used them personally yet but i think im going to sway this way when it comes time for rod's. Send him an email for some pics. They look very nice to me.

<{POST_SNAPBACK}>

What kind of prices does he charge?

[StockyMcStock]

how big are the stock ones anyway?

370cc or thereabouts.

[Scribble]

What kind of prices does he charge?

<{POST_SNAPBACK}>

He quoted me a tad over the $1200 mark for a set of 6. E-mail and ask for a more current figure as he's pretty helpful and fast reply

[conan7772]

what sort of power would guys think that an HKS 3040 with 1.12 AR rear housing would make on the RB30/25  with tomei poncams?

would that turbo flow enough for 400rwkw or so?

reason i ask is because i have finally found a block for a good enough price .. not super cheap but the best i found so far.. so im picking this up on the weekend and getting started on the build..

<{POST_SNAPBACK}>

what spec cams are you considering ?

my mechanic thinks the 256 deg is the best for street driving.

longer duration needs more lift to be optimal.

Edited December 10, 2005 by conan7772

[conan7772]

370cc or thereabouts.

<{POST_SNAPBACK}>

would it be sufficient if bigger ones went in with the stock setup or is it a must to go a new rail ?

[Bl4cK32]

what spec cams are you considering ?

my mechanic reckons the 256 deg are the most agro ones you can use before the lobes start to hit the sides of the head...

still don't know if this is for sure yet.

<{POST_SNAPBACK}>

FYI - 9mm lift is where the cams require the head to have some material removed for clearance. Duration doesnt affect it. Larger injectors can be bought that fit to the oem fuel rail.

Maybe do some more research...

Edited December 1, 2005 by Bl4cK32

[Guilt-Toy]

Nismo 740CC injectors are the go when using OEM rail set for RB25. they just bolt in.

[BU5TER]

GT42/HKS T51r fits fine

[Cubes]

Awesome looking engine bay you have there Bu5ter.

[BU5TER]

thanks mate, I'm happy

[conan7772]

Nismo 740CC injectors are the go when using OEM rail set for RB25.  they just bolt in.

<{POST_SNAPBACK}>

what about price ?

[conan7772]

Where's some good places to hunt down used injectors.