Damn.. Engine Rebuild Time... Let The Fun Times Begin...

[BADR33]

hey guys and girls.

my rb30de has decided to give up on me.. somehow when i was tuning the car it must have blown the rings on 2 cylinders... or its been like that for a long time.. not too sure..

but anyway its time for a rebuild..

this time its serious for my N/A

rb30 block, rb25de pistons, rb26 head and throttles..(and pleninum for now. bring on the hex throttles!!)

reground or nice large lift cams. might incress compression.. not sure untill i decide on the cams..

ajustiable cam gears, lightweight flywheel.. 6.1kg. heavy duty clutch(4th clutch in 30,000ks..)

plus im also looking for alloy radiator, oil filter relocation and cooler. plus a few other bits and bobs as i search around.

any other ideas to do while im rebuilding the engine?

[Eug]

that sucks to hear Geoff...

here's a link i've been saving for quite sometime...

http://www.skylinesaustralia.com/forums/in...t&p=2299153

it's sydneykid's ultimate build, i think you can steal some ideas from there... although this is starting to look into race car territory - i'm pretty sure it'd be a handful on the street.

[BADR33]

mmm yeah that would be really nice.. but probly just a little impractical for street use.. plus would cost alot of coin..

even just trying to find a rb26 head is turning out to be alot harder then i was expecting.. its one of those things that you see when you dont want but when you do you cant find one...

[Eug]

hahaha yeah.. actually it's probably a good time to source an RB26 head... they have halved in price over here in australia over the past few months.

i had this RB30 plan all down pat late last year, i kept trying to convince myself that it would be cool, and i'd talk myself out of it then back into it. it was a vicious cycle.

i have actually decided to scrap the entire idea and go for something a little different.

anyway, this is pretty much what i had in my head

what you'll need:

- more compression 12:1 if possible? depends on fuel and tune

- hypereutetic/forged pistons

- hardcore cam shafts + cam gears

- new ecu D-jetro?

- throttle bodies w/ rb26 head (trumpets?) port and polish head

- extrude hone intake and exhaust ports

- aftermarket harmonic balancer

- increased redline

- knife blade & linish the crank

- balance everything! pistons, rods, etc etc...

that should hopefully see you easily into 150-170rwkw territory, with a nice revvy and responsive motor.

problem is, this really hasnt been done before - you are into R&D now.

hope that gives you a bit of direction.

[BADR33]

thats what i was aiming for.. but the shear cost of a 26 head in NZ is crazy..

its cheeper for me to buy a running rb25det then to fix the rb30 with a couple of mods..

so im just going to have to go to the darkside.. just cant afford to do what i want to keep it NA..

[Eug]

thats what i was aiming for.. but the shear cost of a 26 head in NZ is crazy..

its cheeper for me to buy a running rb25det then to fix the rb30 with a couple of mods..

so im just going to have to go to the darkside.. just cant afford to do what i want to keep it NA..

exactly... it's an easy 10k build right there - i couldnt see myself justifying that kind of cash for it.

there are also harmonic issues that RB30s are notorious for, and you wont see past a healthy 6,000rpm without throwing more money into it.

[BADR33]

well mine held up till 7000 daily so there not too bad..

if i was going to build a dream rb30 i would need some kind of sponsership..

plus i do kinda needa start saving for a house...

im gona spend 5g on turboing the car, engine 2500, gearbox 1000(if i get a deal) front mount 500, 3" mild steel exhuast 650, walbro 255lt/h 235.. i also plan to get an alloy radiator so there is about $600

[Eug]

hahaha... key word being healthy Geoff

but yeah... the cost vs. results (although as cool as that may be) can't be justified.