Rb26/30dett Or Rb26dett

[TomtOm]

hey guys, im not sure if this should be under general Automotive discussion...if its in the wrong section please move it =]

anyways. was just wondering which one would be cheaper, a RB26dett R33 half cut, or a RB30 (R31?) + Gear box + RB26 top end .... planing on dumping it into a S130 project im working on....

or if theres any other alternatives please give me some advice.. thanks guys

TomtOm

[[200]]

I think the RB30 bottom end (no more than $300), RB26 cylinder head (2k complete), and gearbox (which one??) would work out cheaper.

I am pretty sure half cuts are around the 5k mark.

There is an RB30 subforum in the forced induction section on this forum.

[VB-]

RB30, stocko refreshed, RB26 head, R33 5 speed. dunno if it'll be cheaper, but it will be 'worth it'

[R31Nismoid]

GTR half cut

You then get the brakes.

GTR top end is ~2k on its own... a half cut isnt overtly more than that and you can sell off whatever is left too dont forget

[Slow S13]

Why not a 30 block, 25 head, tranny and big single that what im about to embark on..

[TomtOm]

a gtr half cut is bout a bit over 6k i think..not too sure... =S i thought about doing a rb25/30 but how much power would that be able to push out of it? and how much would it cost? =S

[N1GTR]

Still around that money if you do it right.

[JiN_MaN]

Maybe something thats being overlooked. Is it for a 4wd or a 2wd?

4wd Rb30DETT does take some work and some parts arent cheap.

[sneakey pete]

Its for a Silvia mate, so i'm 95% sure its for 2wd.

[R31Nismoid]

a gtr half cut is bout a bit over 6k i think..not too sure... =S i thought about doing a rb25/30 but how much power would that be able to push out of it? and how much would it cost? =S

For R32 or R33/R34

You'd want a 33R half cut for that price, and that way you get the brakes which alone (resale) for ~1500 for the fronts if they are decent with rotors/pads etc.

Sell the dash, cooler and other bits and there is another 700-1k off

So if you dont use all the above its already ~3.5k ... which for a running 26, with loom, and the other lefts overs isnt too bad in my books.

[mitchy_]

buy 26 cut, sell off some of the parts and buy + freshen up a 3L bottom end with the profits.

that way you know you'll have a reliable engine too

[JiN_MaN]

Its for a Silvia mate, so i'm 95% sure its for 2wd.

woops, totally missed that bit.

[SkyHi_33]

25/30, if you do most of the work and do it right (forged pistons) you should be able to have a running motor for around 3k. If you are using fresh stock internals than a bit cheaper than that. (apparently they are good for 600rwhp) but rb30's have balancing issues so you would wanna get a decent harmonic balancer after you've balanced the whole block.

Im doing the exact thing at the moment.

[nicko2010]

hey guys, im not sure if this should be under general Automotive discussion...if its in the wrong section please move it =]

anyways. was just wondering which one would be cheaper, a RB26dett R33 half cut, or a RB30 (R31?) + Gear box + RB26 top end .... planing on dumping it into a S130 project im working on....

or if theres any other alternatives please give me some advice.. thanks guys

TomtOm

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