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Anonymous
Guest
I'm just curious, anyone know? 
:
In the states, an RB25DET is like $3,000 while an RB26DETT about $4-5,000.
: In the states, an RB25DET is like $3,000 while an RB26DETT about $4-5,000.
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Anonymous
Guest
Ok, from my understanding of Nissan sixes, here goes:
RB30 (And RB25 for the NZ market) blocks were only offered in SOHC form, for the 'export' market (Did Nissan cast blocks here?). Since the drivetrain cost Holden 25% in the VL commodore, DOHC didn't make the equation.
RB25DETT motors are from 'generic' R31-R34 skylines, hence the lower cost.
RB26DETT motors are from GTR skylines, hence the higher cost
heads, cranks, etc are interchangable through the engine family, which is how RB30DETT motors are possible. Seems the popular thing to do is to put RB25 cranks into RB30 blocks, since they're a bit stronger than the rest, so I'm told...
RB30 (And RB25 for the NZ market) blocks were only offered in SOHC form, for the 'export' market (Did Nissan cast blocks here?). Since the drivetrain cost Holden 25% in the VL commodore, DOHC didn't make the equation.
RB25DETT motors are from 'generic' R31-R34 skylines, hence the lower cost.
RB26DETT motors are from GTR skylines, hence the higher cost
heads, cranks, etc are interchangable through the engine family, which is how RB30DETT motors are possible. Seems the popular thing to do is to put RB25 cranks into RB30 blocks, since they're a bit stronger than the rest, so I'm told...
Yeah, RB20E for the NZ spec Commodore VL 2.0 Litre.The L24, and RB25 were used in some Laurel imports. Import Skylines were either Aussie made, or Japan imports...the GTS Skylines we have here are gutless but are silk smooth, and rev like a ricer. One guy here has a street registered RB25 which does low 11 sec quarters with a turbo, though.
Holden and Nissan did a classic back scratch. The Pulsar and Astra got an Aussie made Family II 1.6 or 1.8 EI, then Nissan imported the RB20E, RB30E, and RB30ET to Australia from Japan for the locally made Skylines and Commodores. The RB30ET Turbo was done especially for the Commodore, Nissan never used it at all. The Jap import RB-series DOHC engines are the same under the head, but they never got over 2.6 litres in the Japan.
The financial crunch of 1987 put paid to the import of these engines...Holden has used Buick and Chevy engines since that point, as the US dollar is stable.
The only stuff up is the odd striped intake or exhast manifold stud, or the nasty cracking of the alloy head, caused by the VL Holden radiator baffle cracking, and blocking flow to the head. The Sammut Bros used these RB30E engines with twin turbos, and got 630 hp without a blink, and ran them to 10070 rpm, with up to 9000 rpm used regularly. There little Torana took out the Aussie drags in the early 1990's.
The strenght comes all because of the deap skirt design, and main bearing girdle. The engine was made as the LD 24and 28 and RD28 diesels, so they are ultra strong...and as heavy as the much taller 200/250 alloy headed cross-flow Falcon I6. All the weight was in the block.
But I'm a Ford man. If you want to make some mark-up, the Nissan engines are good prospects. They are much cheaper to get in NZ and Aussie.
Holden and Nissan did a classic back scratch. The Pulsar and Astra got an Aussie made Family II 1.6 or 1.8 EI, then Nissan imported the RB20E, RB30E, and RB30ET to Australia from Japan for the locally made Skylines and Commodores. The RB30ET Turbo was done especially for the Commodore, Nissan never used it at all. The Jap import RB-series DOHC engines are the same under the head, but they never got over 2.6 litres in the Japan.
The financial crunch of 1987 put paid to the import of these engines...Holden has used Buick and Chevy engines since that point, as the US dollar is stable.
The only stuff up is the odd striped intake or exhast manifold stud, or the nasty cracking of the alloy head, caused by the VL Holden radiator baffle cracking, and blocking flow to the head. The Sammut Bros used these RB30E engines with twin turbos, and got 630 hp without a blink, and ran them to 10070 rpm, with up to 9000 rpm used regularly. There little Torana took out the Aussie drags in the early 1990's.
The strenght comes all because of the deap skirt design, and main bearing girdle. The engine was made as the LD 24and 28 and RD28 diesels, so they are ultra strong...and as heavy as the much taller 200/250 alloy headed cross-flow Falcon I6. All the weight was in the block.
But I'm a Ford man. If you want to make some mark-up, the Nissan engines are good prospects. They are much cheaper to get in NZ and Aussie.
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Anonymous
Guest
in the mag zoom rb26dett goes for $5500 and rb25det $2800 and rb20det for $1200 if i was to get one i'd get the 2jzgte (supra twin turbo) that goes for $3000
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Anonymous
Guest
i spose if you shop around you could find the engines for cheaper but don't forget the prices i gave were in oz dollars.
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Anonymous
Guest
indeed;
I've been offered $1550 for a GTR motor, but thats had 150,000 km on it, with LOTS of thrashing involved.
I guess its who you know..
although, jap spec imports seem to be pretty uniform in prices....
I've been offered $1550 for a GTR motor, but thats had 150,000 km on it, with LOTS of thrashing involved.
I guess its who you know..
although, jap spec imports seem to be pretty uniform in prices....
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