87mm Pistons For A Na

[central coast person]

ok yeah this might be a place for a wanted sales forum but i dont think it will be any use there seeing as ive been looking 3 months for a set of 87mm non turbo pistons. If anyone can help me with a few places to look at it would be so much help to a skyline thats been in a driveway for 3 months with no engine.......ANY HELP

yes they need to be 87mm because i warped the bottom end (i dont know how but it isnt to but) the thing thats making me go 87mm is the scoare with the 5th cylinder, its so bad it looks like a 100 year old drain pipe, so yeah all cylinders need to be boared by 1mm now and i need help finding a set of pistons.

PLAN B

if anyone knows of a gts4 engine, its just been so long without my car ill just buy the engine and stick it in (bottom end only would be nice as i have a reconditioned top end now)

yeah so its a bit complicated for a wanted forum seeing as these parts are not your everyday parts in japan even

Cheers, Andrew

[NA_R33]

Call serco @ woolongabba and get some pistons made up. I doubt anyone makes oversized NA pistons as a stock item as there isnt that much demand for them.

[central coast person]

yeah so this was my plan C because the price is going to be really big probity.

i can wait a month or two if no stock pistons or engines turn up then i might choose hand made. The only place i know of so far that make oversized pistons for it are Nissan but they only do it from japan and Nissan Australia will not order it for us. i have the part number for the pistons.

[GTS4WD]

RB30 pistons

I rember reading somewhere the the geodgen pin sits slightly diffrent. But worth a look.

[GTS4WD]

this may help

Use rb25 pin and rods.

Looks like you will also be getting higher compression ratio with an rb30 piston.

RB30 pistons will be dirt cheap but you will also need to get new rings and a good honest clean

Edited October 9, 2008 by GTS4WD

[G0DZLR]

even better, could ditch the 25 and go for a RB30 bottom end? . keep an eye out in the classifieds tho, i know theres a couple of GTS4 wrecks im watching that had motor and running gear etc...they tend to pop up regularly.

[central coast person]

GTS4WD i think you might be right

im sure you can use the rb30 pistons or the rb25 pistons in a rb25/30 hybrid, so there im seeing them as a pistons for rb30's and rb25's am i not right??

anyone who can answer this with a first hand experience on the differences, it would be much appreciated. If so im going to get a good set of 87mm VL/r31 pistons and be very happy i have 12 rb25 pistons, and rods so im not short there

we looked into a rb30 bottom end but it sits ontop of the 4wd drivetrain and such theres no way it wanted to fit in there because have one in the garage and its not the gts4 block shape

thanks GTS4WD, ill get my uncle to play with the pistons and stuff and see if this option is the winner

[342Four]

might have to fly cut the rb30e pistons to fit valve clearance and maybe a slightly thicker head gasket but apart from them being the only problems that i can see you should be alright

[GTS4WD]

Yes,

You can put an RB30 bottom end on the front diff/sump

There are adaptor plates available. There is currently a group buy running aswell!

Warning, they arnt cheap

[central coast person]

ahh yes i found that out after seeing a lot of GTR's like this, although it would be good power being a everyday driver i think i have to keep my response in mind.

Price wise i have a few rb30's lying around in my uncles workshop some in tiptop condition so it would only be adapter costs.

ive even got a bottom end from a 25 thats only done 40,000km so im really set on looking into the rb30 pistons tomorrow morning

so many options to choose from all at once, haahahaha

Edited October 9, 2008 by central coast person

[SHANE666]

andy

your car's going to be a beast!!!

[GTS4WD]

Just bear in mind Andy that there is a little work in an RB30DE set up. You need to relocate a pully, use a different timing belt and tap an oil feed.

I vote (for ease of installation) that you use the 25 bottom end if you can get it for a good price because 40,00km is nothing

[central coast person]

oh its mine

i brought it from a auto skyline that had a hit. I sussed it out and the owner was old family man so i didnt see him going out and racing haha and he didnt cause the crash and i didnt need much from the engine just the internals that are the same as a mannual which is almost everything. i brought it opened it and its so new i dont need to change the bearings or anything, so what ever parts need changing in the good old gts-4 will be done. except for maybe the exception of ACL racing rings which my uncle is strongly recommending and i want ACL racing big end bearings........

as you can see im wanting to stay rb25 as well because the response would be nice, seeing as im getting stainless steel air intake to shove the old plastic one out the way because i think im going 80 or 90mm throttle body, i have those dkne extractors in my skylines back seat atm waiting to go in the engine bay before that air mod though and splitfire coilpacks and just changing every maintenance part there is from fuel filter to gaskets. i dont want to get a rb30 bottom end and addaptor plate and spend money on a engine that needs to be fitted in there when i can make minor power with a lot better response.

turning into a what to do to my engine forum ayyyy

only hopes for me are the pistons in japan or the rb30 pistons, fingers crossed

[GTS4WD]

Id only bother going new rod bolts and bearings if the car is going to be abused constantly. Seeing high RPM frequently and for long periods of time.

[central coast person]

hmm seeing as i was just at bathurst i have this thing for coming into corners really fast

anyway i would have to agree because i did wreak the other engine, not from speeding just my high rev addiction.

news update on this, just ordered pistons from Nissan Japan 50thou!!!!

will keep up to date when i receive these pistons because there is slight confusion, apparently they are r32 pistons but they typed my vin and chassie numbers in and its the ones recommended so its a gamble at the moment.

[G0DZLR]

how much did they cost?

[central coast person]

they are made from the standard material and are $900au

[GTS4WD]

Bathurst aye?

For the race?

I sat all day on the roof of our dorm, drinking beers watching the v8's

[central coast person]

yep

i get free four day paddock passes so i figured i should use them but im only 17 so i cant stay in a hotel or camp ground without a adult so i went saturday at 3:30am!! with my mates dad.

best stories on the way down about him being the guy who ordered and put the tires in the pits for the mark skafe r32. Hes head of Nissan mechanics now.....so he just gives heaps to my mate and me about seeing new cars and stuff everytime we talk cars. the drive down was short to it was only 2 and a half hours (almost no cars no red lights) from the coast but the trip back up was 4 hours.

got some good video's of the race from my phone and it was only 10m away from the cars so the 2mega pix factor dosnt really mater.

highlight of the day was the mini coupe with the roof but at the A pillars and pulled back to get a driver out it was extra mini

[SKiT_R31]

they are made from the standard material and are $900au

50 thou over? so a 70cc gain? I've been looking for some 60 thou over, add 100cc to my 30DE, wanted somthing a bit lighter than stock though, for a 25DE. Although in standard material you could get away with a tighter bore.

Any more info on these customs?