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You can't just change the rings, the block will need to be honed as well, because new rings don't like unhoned bores. That's IF it doesn't need a rebore as well. And new pistons. As for cost, that varies because of differing labour rates. I reckon 1500 quid upwards. :eek: Though for 2 grand, you can buy a RIPS RB30 short block and put your head on it. That's the best way, you'll get way more torque than a RB26 :thumbsup:
 

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You can't just change the rings, the block will need to be honed as well, because new rings don't like unhoned bores. That's IF it doesn't need a rebore as well. And new pistons. As for cost, that varies because of differing labour rates. I reckon 1500 quid upwards. :eek: Though for 2 grand, you can buy a RIPS RB30 short block and put your head on it. That's the best way, you'll get way more torque than a RB26 :thumbsup:
2K for the block, but how much will it cost to replace the block? not cheap I guess.
 

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complete with pistons, rods and crank and just bolts straight on for 2K. What other mods would he need to run this bottom safely tho?
 

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What do you mean, other mods? It's just a bottom end, but a 3 litre instead of 2.6 litre, and it's rated to 600hp and 7200rpm. Have a look on the RIPS website, but have some tissues ready as some of the pics are pure pornography. :chuckle:
 

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Oh I think I know what you meant now. A drain from the head to the sump is a good idea, and the 3 litre sits 35mm higher than the 2.6, so he'll have to cut a small piece out of the bonnet support/frame so it will clear the head. :thumbsup:
 

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Why? It's leagues better than a 2.6 anyday. They are both simple and easy modifications, and you'll end up with a far superior torque curve for not very much money.
 

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FFS, I've just noticed you have an R33, for some reason I thought you had an R32. Right then, with an RB30 in an R33, you don't have to do anything to the bonnet. Sorry about that. :chairshot
 

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so youre saying that you could bolt the 3.0l bottom onto a stock 2.6l top end with no further engine mods i.e upgraded ecu, fuelling, turbos etc etc ? and would run fine and gain more torque/bhp?
 

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No that's not what I'm saying. If that's what you meant then you should have said that earlier. If his car needs a rebore and larger pistons, then it's going to need remapping anyway, on account of the increased capacity. As for injectors, we don't know what size he has anyway, or what size he needs cos he hasn't said what he has or what power he wants. As for turbos, the same as the injectors. Who knows what he has or what he wants. The point I was making is that the 3 litre beats the 2.6 litre hands down.
 

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sorry for the confusion mate what i meant (as you've got me intrigued now) was could you bolt the 3.0l bottom end on the 2.6l top end with no further mods (except maybe a remap) and run it like that and make more torque/bhp on a stock top end until you max the injectors/afms out ?
 

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sorry for the confusion mate what i meant (as you've got me intrigued now) was could you bolt the 3.0l bottom end on the 2.6l top end with no further mods (except maybe a remap) and run it like that and make more torque/bhp on a stock top end until you max the injectors/afms out ?
juz me opinion but if ur goin thru trouble of taking motor out for rb30, id put on a bit more... 700cc inj, remap, -5 turbos...
 

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sorry for the confusion mate what i meant (as you've got me intrigued now) was could you bolt the 3.0l bottom end on the 2.6l top end with no further mods (except maybe a remap) and run it like that and make more torque/bhp on a stock top end until you max the injectors/afms out ?
Basically yes you could run stock turbos etc with the RB30 bottom end and might see a little more power but certainly you'd see boost earlier etc. You might need to mod some of the pipework so that it plugs into the new taller engine of course.

If it helps when I worked things out the RIPS bottom end was about £2k then you'd have duty and VAT on top of that which is another £500-600 (Rob please correct me if I'm wrong).

Something which did occur to me was asking how much Rob would ask for a complete engine (ie bottom end and RB26 head), the reason being you could then sell your RB26 to a GTS/200SX owner (seem to be about £2k) and thus recoup some of the conversion costs or at least a good chunk of the cash you send to Rob. Then you'd just need to get it bolted in and tuned.

In fact I really must PM Rob and see if that's possible.
 

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Basically yes you could run stock turbos etc with the RB30 bottom end and might see a little more power but certainly you'd see boost earlier etc. You might need to mod some of the pipework so that it plugs into the new taller engine of course.

If it helps when I worked things out the RIPS bottom end was about £2k then you'd have duty and VAT on top of that which is another £500-600 (Rob please correct me if I'm wrong).

Something which did occur to me was asking how much Rob would ask for a complete engine (ie bottom end and RB26 head), the reason being you could then sell your RB26 to a GTS/200SX owner (seem to be about £2k) and thus recoup some of the conversion costs or at least a good chunk of the cash you send to Rob. Then you'd just need to get it bolted in and tuned.

In fact I really must PM Rob and see if that's possible.
yes I woud like to know this as well becoz Rob sells a lot of rb30s with rb25 head and of course from the pix his attention to detail for assmbly is awesome... and the rb25/30 is only a lil bit more than juz the bottom rb30

of coz wud prefer rb26/30 but mayb rob findin it hard to get the rb26 headS?
 

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yes I woud like to know this as well becoz Rob sells a lot of rb30s with rb25 head and of course from the pix his attention to detail for assmbly is awesome... and the rb25/30 is only a lil bit more than juz the bottom rb30

of coz wud prefer rb26/30 but mayb rob findin it hard to get the rb26 headS?
Sort of what I was thinking really. Seems sensible to get as much done by one person as possible. Of course it means paying more duty.

Of course once you're thinking RB26/30 then it would be rude not to put some better turbos on...
 

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DazGTR, yeah pretty much what Cris said. But if you've got the cash buy a complete motor off RIPS. I'm sure you'd be able to work out how to pay less duty and vat as well. ;)
 
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