RB 26 forged pistons

[seeyagtr]

I had a failure on number 5 big end (not alot of fun) ,so i strip down the engine to then find that my bores are 87mm and are badly scored! they will clean up at 88mm (wich will reduce the block strengh and limit horse power) but then the next problem is that i need to find a good set of forged pistons that retain the 8.5:1 commpression ratio. I since then have found out the ARIAS piston do not go out to 88mm. WISCO made a 88mm but reduce the commpression and are of unkown quailty. Can any recconmend what i can do?? thanks :freak:

[NA_R33]

N1 block from Japan! Jun 3 ltr stroker kit and a pair of 3040's.

Seriously, see if u can get a set of JE ones built to ur specs

[seeyagtr]

The 3lt kit would be awsome!! but the whole lack of money problem is the issue!!

I will try the JE pistons for fit thanks

[Russco]

I only hear good things about Wiseco, particularly from guys with race bikes as well as race engine builders such as JHH Engineering?! Anyone have other comments on these pistons??

[NA_R33]

ive used wiseco in quite a few of my race bike, seeyagtr, im surprised wiseco wont custom build a set for you, and yes i realise owning a GTR sends u broke, i think its merli who summed it up quite well, GTR=Money Pit

[awurth]

I only hear good things about Wiseco, particularly from guys with race bikes as well as race engine builders such as JHH Engineering?! Anyone have other comments on these pistons??

I ran wiseco's in my GTS-t and they handled it just fine. The guy who bought it off me flogged the hell out of it and did a big end as well, piston's where like the day I bought them. same story basically they are a reputable brand with a good product. it's all the same grade aluminium in the end!

[ylwgtr2]

I beleive HKS do 88mm pistons

[cameron]

Doesnt matter on size of pistons 88mm will be fine (read below)

The bore might need to be re-sleeved, depends on how bad the score marks are.

N1 Block from JustJap 12,500

If you need a price on forgies ring stick (My Signature Below)

Jun

[infected flow]

was just about to say resleeve bottom end sice only one cylinder should b fine with the heat side of things and strength.tomei and acl pistons do 88 and are the shit also with compresion they can shave head or thin head gasket to keep compression up.

[Guest Variable]

I think a whole new N1 Engine is $12,500 and a bare N1 Block is $3450

[Blitz]

I think a whole new N1 Engine is $12,500 and a bare N1 Block is $3450

This is correct.

Surely a good second hand RB26 block isnt to expensive

[seeyagtr]

Thanks for all the info!! It would be sweet to get hold of a secondhand block, even out to 87mm ( good bore )would be sweet but my efforts in tying to get hold of one have proved fruitless! To use 88mm pistons and then to shave the block/head would be the go. I also had bad scoring on 2 and 4 bores that might clean up at 87.5 but i am still left with a floged out number 5!!!! I have not ket priced up a full resleve. I can get the JE Forged Pistons for $1600 custom made wich i did not think was too bad,

I have to weight up the best way to go

[infected flow]

thats probably the quickest way what u just mentioned also it doesnt cost that much too resleeve a cylinder

[600hp]

i got jun pistons in my gtr and they seem pretty good, very quiet i think they were about $2500 .