Guest Anonymous Posted July 6, 2001 Share Posted July 6, 2001 hey guys im looking for sites with info on nissan RB motors i.e power outputs for different models parts and trans interchangability (is that even a word?)and other gear about em if anyones got any good links or addresses they can post i'd appreciate it Cheers!!! Quote Link to comment Share on other sites More sharing options...
fl327 Posted July 6, 2001 Share Posted July 6, 2001 i dont know if there are too many, since we dont get the skyline here in the us. there are some, but you might need to brush up on your japanese. Quote Link to comment Share on other sites More sharing options...
Guest lambsr Posted July 6, 2001 Share Posted July 6, 2001 I can give you a run-down of the stock outputs of the RB2x turbo models if that's what you want. All the RB's use the same bellhousing bolt pattern, so box-swapping is pretty easy. All the RB's use the same water pump and oil filter. The DOHC models use the same timing belt. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted July 7, 2001 Share Posted July 7, 2001 thanks for the info I had a feeling that boxes might be swappable. I really wanted factory outputs on the different rb2x's to try and figure best "Bang for buck", before i hand out the cash for the seemingly cheapest motor in my price bracket. Quote Link to comment Share on other sites More sharing options...
Guest lambsr Posted July 7, 2001 Share Posted July 7, 2001 OK, in capacity order then: RB20DET There are three common versions of this motor, plus a couple of 'specials' (there may be more): a) early R31 NICS '12 port' engine about 140kW stock output, red rocker covers, the first of this generation late R31 ECCS '6 port' engine, about 150kw, red rockers. c) R32 ECCS, 162kW, silver rockers, first with ball-bearing turbo. Regarded as the 'best' of the RB20DET engines. The specials were: 1. RB20DET-R - was a special version developed for the production car racing scene in Japan, but also made it inot some production R31's. I've seen photos of both NICS and ECCS versions of this engine, but only for the R31 (but that doesn't mean there wasn't an R32 version). This engine had an output in the 170kW region using a T04E turbo, tubular headers and other special parts. SSS Auto (Sydney) lists one of these in their current inventory. 2. Not strictly a 'special', but the RB20DET did make it into the Z31 chassis for the Jap domestic market. The model was called the '200ZR' and was produced for a few years in the mid 80's. The engine was essentially a NICS type, but had a sump configuration that would also allow it to bolt straight into a 240Z or 260Z. Rare, but I have seen one of these at an importer in Melbourne a couple of years back. RB25DET This engine first appeared in the R33 in the GTS25T and has continued in production since then with refinements along the way and a re-naming to 'Neo' . Stock output is around the 185kW mark. RB26DETT Do I ned to say anything ?? Stock output around 208kW - or is it 206.....anyway it just happens to match the voluntary limit accepted by the Jap factories in line with Government wishes. Some say the actual stock output is higher than this, but I doubt it. RB30ET Made especially for the Oz market and appearing in the VL Commode only, there is a huge amount known about modifying this motor and the Sammut brothers have reputedly acheived over 900 HP out of a highly modified (duh !!) version in their drag car. Stock output is 150kW (but try and find a stockie !!) That's about it. What to go for depends on your budget, but for my money the RB25DET is a good all-round bet with half-cuts now available for around $3500. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted July 8, 2001 Share Posted July 8, 2001 Thats exactly what i wanted thanks!! I've just picked up an RB30 non turbo with 5spd, harness, computer etc. for $1000- from the prices ive gathered it was about half of what i would pay at any wreckers. But now the dilema i've got to find another good z shell. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted July 13, 2001 Share Posted July 13, 2001 Great info, the RB25DET sounds like the go,eh. Does anyone know anything about fitting a RB25DET/RB20DET DOHC HEAD onto the RB30 SOHC engine that was fitted to the holden commodore, I reakon that'ed be the go in the 240Z RB30DET clintt@xtra.co.nz Quote Link to comment Share on other sites More sharing options...
Guest lambsr Posted July 13, 2001 Share Posted July 13, 2001 I think this site should give you a lot of info that you need: http://members.saonline.com.au/~rowan/twincam.htm One problem with putting one of these in a Z is bonnet clearance. The RB30 block is about 35mm taller than the RB2x types, plus the twin cam head is way taller again than the RB30 head. Then if you use the stock cross-over RB25DE/T manifold arrangement...well, I think you can see where this is heading ......perhaps a power bulge in the bonnet would be appropriate in this case Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted July 14, 2001 Share Posted July 14, 2001 Cheers for the info Slamb, I checked out that site, 467 hp YEH F---ING HA!!!!! But it sounds like I had better stick to the RB25DET with a GTR style inlet manifold. Has anyone got any Hp figures on modifed RB25DET's(eg bigger turbo etc), and what other modifications are needed to drop one of these engines into a 240Z eg (sump/cross member mods/ clearance for master cyl/ booster etc) Quote Link to comment Share on other sites More sharing options...
240Z Turbo Posted July 17, 2001 Share Posted July 17, 2001 Is this true? Can you not take and RB26 motor and use the RB30 crank to stroke it? I understand that you will need to change rods/pistons? Thanks for the info. I will be a future skyline powered Z(AWD)! Quote Link to comment Share on other sites More sharing options...
fl327 Posted July 17, 2001 Share Posted July 17, 2001 a z awd? do it... Quote Link to comment Share on other sites More sharing options...
stony Posted July 17, 2001 Share Posted July 17, 2001 im not sure about the rb-30 but all the other rb- cranks have a different size pulley bolt and at not interchangable with the rb-26. a good rule of thumb is about the only thing that is interchangable are the head and there are some minor mods you need to do to make that work also stony Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted July 17, 2001 Share Posted July 17, 2001 AWD Z CAR, I'm getting excited now!?!?!?--does anyone know of someone who has done it Quote Link to comment Share on other sites More sharing options...
Guest lambsr Posted July 17, 2001 Share Posted July 17, 2001 There was a rumour that someone in Sydney built an AWD 240Z using the GTR drivetrain, but AFAIC the car has never surfaced in the flesh, as it were, so remains just a rumour. As to fitting an RB30 crank to an RB2x block, even if it is possible (and I just don't know), the biggest problem will be finding rods shorter than the stock RB2x rods to make the thing work. From the factory they don't exist, so custom may be one way (big $$$$) or perhaps a donor from a completely different engine type (read: lottery). In any event, why bother ??, just go the much easier and cheaper RB25 head onto RB30 block Quote Link to comment Share on other sites More sharing options...
stony Posted July 17, 2001 Share Posted July 17, 2001 in japan there is one there is also a fc3s rx-7 awd with a rb-26 pretty radical ;> Quote Link to comment Share on other sites More sharing options...
240Z Turbo Posted July 19, 2001 Share Posted July 19, 2001 The reason I ask about the RB30 crank in the RB26 is because JUN offers a 3.0L kit for the RB26 they say is for 1000-1400hp applicataions. Quote Link to comment Share on other sites More sharing options...
Guest Rb30zX Posted February 27, 2003 Share Posted February 27, 2003 Hey there has any one in aus done the rb30 swap into a z if so can you help on the mounts what did they use any help would be great got the rb30 hanging in the engine bay now and carnt seem to get it low enough using r31 skyline mount brackets Quote Link to comment Share on other sites More sharing options...
zed660 Posted February 28, 2003 Share Posted February 28, 2003 If you look on http://WWW.Classiczcar.com and look for a guy from Oz with the username RB30ZED you may be able find out the info you are after. Cheers, : Quote Link to comment Share on other sites More sharing options...
Mack Posted February 28, 2003 Share Posted February 28, 2003 http://www.z31.com/~morgan/nd/?z/awd1000hp240z.jpg theres the link to the AWD 240Z also I would like to see someone here stateside do a RB30Det. give those 2Jze boys a run for the money. I think you should go with the RB26 head as opposed to the RB25, more flow better ports. keep us posted McAdam Quote Link to comment Share on other sites More sharing options...
S15 200sx owner Posted May 30, 2005 Share Posted May 30, 2005 Great info' date=' the RB25DET sounds like the go,eh. Does anyone know anything about fitting a RB25DET/RB20DET DOHC HEAD onto the RB30 SOHC engine that was fitted to the holden commodore, I reakon that'ed be the go in the 240Z RB30DET[email']clintt@xtra.co.nz[/email] This is funny! Just found this old link (above) which was ME way back on 07-13-01 when i first hatched my plan to build a RB30DET powered 240z, i didnt even own one then, and never had. But knew i wanted one, and have wanted to do this swap for a long time now, try four years! I have been doing my homework on & off ever since. Well goes to show if you are passinate enough about something, you will make it happen, as i only got my 240z about 2-3 months ago, and have already collected many of the parts i need, and the project is well under way. So when i stumbled accross my old/pretty much first ever thread i had a bit of a giggle. This site has certainly been an inspiration. Cheers guys. Clint T, (BTW, the email address in my old thread above is no longer correct) Quote Link to comment Share on other sites More sharing options...
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