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R34 Rb26 Rebuild Time (drift Spec)

SR20DET

By SR20DET,
in Engines & Forced Induction

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SR20DET Rookie

SR20DET

Posted
Posted

i have a a r34 rb26 in need of a rebuild and need help!!

the car it is in is a ex D1GP car and is obviously used for drift.

it has run a bearing (1 or more) possibly due to oil surge

anyway it is now due for a rebuild, we were atleast going to go

pistons, rings, rods, n1 oil pump, trust extension kit, is highly likely we will need a new crank

as we realised what was happening quite late ( can't hear anything over the 3 fuel pumps)

we were going to go with the first stage hks 2.8l kit but evidently the block wouldn't like it

and we would need an N1 item, so that scraps that idea also we were told that we may aswell

throw the engne away as bits of bearing would be scattered throughtout the engine (i thought a good flush and tidy up/porting would be sweat!)

any way what options do i have with the crank, scatered metal in the engine, etc.

ps we are looking for around 600-700hp rear wheels (we have all the externals to handle that and more!)

cheers

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SR20DET Rookie

SR20DET

Posted
  • Author
Posted

yeah 450-500kw drifter

it is nuts already but hey can never have enough and since it needs a rebuild anyway

it did a team event with kuroi at an option 2 event in 2004 i think,

anyway, do i need a n1 block for 450-500kw? with a stage 1 hks 2.8l kit?

what are my other options with the crank what is good out there and what $$

any of you guys that has had an rb26 expire in the same way have any problems

with debris through the engine?

ohh and yes it is a four door

cheers guys

might even post a pic of one of the laps before it let go

CruiseLiner Mentor

CruiseLiner

Posted
Posted
yeah 450-500kw drifter

it is nuts already but hey can never have enough and since it needs a rebuild anyway

it did a team event with kuroi at an option 2 event in 2004 i think,

anyway, do i need a n1 block for 450-500kw? with a stage 1 hks 2.8l kit?

what are my other options with the crank what is good out there and what $$

any of you guys that has had an rb26 expire in the same way have any problems

with debris through the engine?

ohh and yes it is a four door

cheers guys

might even post a pic of one of the laps before it let go

u got jun 2.7L billet, full counterweight crank, tomei 2.8L (not full counterwieght i dont think) and the hks 2.8L crank, though there a few different hks cranks in the 2.8L depending on power. and n1 block is only 3K i was told which if i knew when i did mine id be using one str8 up, not worth risking on a normal block when they are sooo cheap :down: plenty of options around, try searching the site for stroker kits as their was a large thread on it a fair while ago now discussing all the options :(

show us some pics :( is it a skyline or a chaser going by the jzx (rb26 powered) as your listed car?

SR20DET Rookie

SR20DET

Posted
  • Author
Posted

at the time it blew it had 334kw rear wheels and 1100nm of torque but that was detuned running pump gas.

the head has all the bits (may be looking at new cams if debris got up there though).

Was told that the r34 block was basically similar to the n1 in design ( with extra ribing for greater torsional strength stopping cracking in the block at hi rpm) , would be going for the first stage

2.8l kit the second and third is a bit overthe top

yeah its a mark 2 toyota powered by a r34 rb26

post-27431-1142630382.jpg

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

350rwkw is a much smarter, cheap and more reliable approach than 500rwkw.

plus drifting is more about car setup than power.

personally stick under the 400rwkw marker, far better response and throttle control can be achieved. And thats what you need correct?

SR20DET Rookie

SR20DET

Posted
  • Author
Posted

yeah decided 500kw is a bit over the top but would like 400kw, the power hits in an awkward time for me anyway and was going with the stage one 2.8 kit (highest compression version) to move the torque down in the range a little bit with a bit of response (would this be the case?)

as for the power in drifters issue have you seen kuroi's 900ps onevia powered by rb26, but yeah i do agree

does any one know if the r34 block is similar to the n1 in design ( with extra ribing for greater torsional strength stopping cracking in the block at hi rpm)?

btw the track is in NZ pukekohe infact (mega entry speeds into that sweeper!)

1400r Veteran

1400r

Posted
Posted

my work brought in a 33 gtst x Garage Aqua track car from Japan with r34 n1 crank, rods and oversized pistons stroked the 25 to a 2.7lt its fitted with a RX6 made 355rwkw on flat out mode i.e 1.8 bar

Its super responsive span the semi slicks up in third without any problems on 1.2 bar.

the guy that bought it drifts it on 1 to 1.2 bar so just on 280 - 300rwkw plenty of power

Sydneykid Grand Master

Sydneykid

Posted
Posted

R34GTR (RB26DETT) block measures up exactly the same as an R32GTR N1 block. Personally I think the N1 block is under utilised in a 450 rwkw application, a standard block will handle that easily.

My 20 cents…….

Dismantle the R34GTR RB26DETT, clean it up and work out exactly what it is that you need to replace. Then get on with the rebuild stick a standard crank, some good rods, bearings and pistons in it and control the oil temperature and flow properly. It will handle the power you want easily and with a decently ported cylinder head and 9 to 1 compression ratio it will have all the response you need. Ceramic coat the piston crowns, the combustion chambers and the exhaust ports for the superior temperature control and a further improvement in response.

:P cheers :)

SR20DET Rookie

SR20DET

Posted
  • Author
Posted

thanks Sydneykid, i thought the 34 block was similar and could handle over what we wanted, will

look into your suggestions engines in the process of coming out at the mo.

one of the strong reasons we were looking at the hks kit is that it would only be alittle more (not much at all) to get it than get all the bits and a good stock crank :P

(over here anyway)

still cant belive it had oil surge after competeing in d1gp and other japanese events

only thing i can think of is they ran it over full?

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