Rebuild Overview

[Suspense]

Well just got a quote for my rebuild (RB25DET), was wondering if you could all look through it and give me ideas on what is priced good what not. and altertnatives?

ACL Mahl Forged Pistons with rings(20thou). $1400

Tomie metal Headgasket................................$550

Nissan Gaskets..............................................$200

Bearing Set (Tri-Metal)....................................$300

Welsh Plugs....................................................$80

Machining, close & hone, shot peen ..............$2000

Rod Bolts........................................................$280

Head Bolts......................................................$200

Labour charge

28 hours........... $2150

Totalling... $7290

Also i am only planning on getting 250rwkw out of the motor... so the stock rods should be up to the task?

Is this about right? anything i should change? any ideas where i can get parts for cheaper from... ?

Thanx in advance

[NickR33]

you probably don't need to spend that much on a headgasket... imo

and you could probably save a couple of hundred on the pistons by going Arias or Venolia

stock rods will be fine for 250rwkw

other than that it sounds about right, good luck with it

btw what happened to the old engine?

[Cubes]

Don't skimp on the bearings.

Either go Nissan or a set of King HP Bi-metal bearings or Clevites.

What brand are they?

[Suspense]

Don't skimp on the bearings.

 

Either go Nissan or a set of King HP Bi-metal bearings or Clevites.

 

What brand are they?

KING HP rigns a belll, not 100% sure, but will double check...

Also i was thinking, no need to go for metal head gasket as i wont be pushing that much power, to really need one?

Rebuilder told me vernolia pistons are abit thin or sumtin, and doesnt like them?

But alot of people seem to be running Arias with no problems, can anyone give me a price on arias 20thou over?

Turbo seals went, oil went to the intake in the engine detonated...

[BU5TER]

Quote was from UAS?

[wrxhoon]

$2000 for machining ? a bit on the rich side i thought , then again depends on what they are going to do .

Does that include cil head work and crank regrinding , for that price it should and its still high .

I had arias pistons in my rb26 40 thou oversize no probs , trade price around 1000 - 1100 including rings .

[retrotec]

ACL Mahl Forged Pistons with rings(20thou). $1400

Are these pistons ceramic coated? Most forgies sold at that price are.

At $7290 I'd be looking at a RB30 bottom end.

[Suspense]

$2000 for machining ? a bit on the rich side i thought , then again depends on what they are going to do .

Does that include cil head work and crank regrinding , for that price it should and its still high .

I had arias pistons in my rb26 40 thou oversize no probs , trade price around 1000 - 1100 including rings .

Machining including head work needing to be done... valves need to be reset...

The quote was from MRC

[R31Nismoid]

$7000, if that includes motor in and out of the car.

Then thats a fair price, i paid a similar figure for mine which is very reasonable.

including

Arias pistons,

GTR Rods - which i reccomend you factor in as they are cheap as, and you'll have a tough bottom end then indeed. With room to go for more power later

and all the other stuff

[Suspense]

$7000, if that includes motor in and out of the car.

Then thats a fair price, i paid a similar figure for mine which is very reasonable.

including  

Arias pistons,  

GTR Rods - which i reccomend you factor in as they are cheap as, and you'll have a tough bottom end then indeed. With room to go for more power later

and all the other stuff

My rebuilder said i require a GTR crank for GTR rods???

[R31Nismoid]

If thats what he said, its time to go and find another engine rebuilder that actually knows RB motors.

Its to much money to risk IMO

You do not need to use a GTR crank to run GTR Rods.

My RB25 uses GTR Rods with stock 25 crank.

You run the GTR crank it makes it like 2.6 or 2.7 ltr, cant remember which.

[BU5TER]

You only need to use the RB26 crank if you were to use RB26 pistons aswell, the RB25 crank with RB26 rods and RB25 pistons is fine

Brett

[wrxhoon]

Rb 25 is the same bore as rb26 , the diff is the stroke 71.7 mm for rb 25 ( 2498 cc) and 73.7 for rb 26 (2568 cc ) 20thou over (.5 mm ) will give you extra 30cc aprox .

You have to make sure they know what pistons to use as well to retain your compression ratio of 9 to 1 . Unless you want to change that but make sure you know what you are getting dont relay on them .

[Suspense]

Rb 25 is the same bore as rb26 , the diff is the stroke 71.7 mm for rb 25 ( 2498 cc) and 73.7 for rb 26 (2568 cc ) 20thou over (.5 mm ) will give you extra 30cc aprox .

You have to make sure they know what pistons to use as well to retain your compression ratio of 9 to 1 . Unless you want to change that but make sure you know what you are getting dont relay on them .

The pistons will retain the compression ratio... and he said i can put gtr rods in, so he is goign to be pricing that up for me now...

[NickR33]

try and source the parts yourself... GTR rods often appear in the for sale section of this site... should set you back about $400

[Suspense]

try and source the parts yourself... GTR rods often appear in the for sale section of this site... should set you back about $400

Yeah im dooing price hunting myself.. any suggestions where to look?

[R31Nismoid]

the for sale section.

it will have rods every few weeks, to a month generally

$400-$600 is the price range

[pitchd]

GTR rods will not fit RB20 crank will they?

- adz

[NickR33]

rocketindustries.com.au was where I got my pistons... (great price and service)

cams from nengun.com (great price but delivery was very delayed)

everything else, water pump, bearings, timing belt, gaskets etc was all from Nissan but I can't remeber which one... I think it was Blackburn

[blk180]

you can have mine for 450 pick up from roocos preformance shop if u want pm me 0r i will post them for 500