Rb25det Neo Modding

[mattye]

Hey guys just found this in the general DIY section. Its a bit old so some people would have already seen it.

http://www.skylinesaustralia.com/forums/Ni...Mo-t282082.html

It pretty good for a wrough guide.

[Tangles]

A quick list of mods to be used to get up and over 250kw at the wheels

Add in labour costs, fluids, and dyno tunes

Engine: - $11,500

$30 - Ryco Z201 fuel filter, Ryco Z145 oil filter

$200 - Bosch 040 fuel pump with direct battery feed at 13.8volts

$500 - Splitfire coil packs

$20 - NGK BCPRE6 0.8mm copper v-groove spark plugs

$150 - Davies Craig automatic transmission oil cooler upgrade kit

$470 - MV Automatic valve body shift kit & auto service kit

$500 - Koyo Radiator upgrade

$150 - Greddy remote oil filter relocation kit

$20 - Fujimoto sump plug drain valve

$60 - Catch can kit

$150 - Nismo adjustable fuel pressure regulator

$250 - Nismo Z32 Air Flow Meter

$230 - 3inch JustJap stainless steel single dump pipe system

$250 - 3inch high-flow metal race cat

$300 - 3inch cat-back exhaust system with Magnaflow mid-muffler and Kakimoto GTR Racing rear-muffler

$100 - Cold Air Radiator air guide for cold air induction

$100 - Apexi power intake pod filter, using standard snorkel air feed & under body feed

$600 - Trust 600x400mm FMIC bar & plate, with custom hard pipe kit

$100 - Hard pipe intake to turbo

$100 - HKS heavy duty turbo actuator

$2500 - Garrett GT3076 700177-5015 IWBB Turbocharger, ported Nissan 45V4 front / AVO .73 rear housing

$500 - JDM S15 Silvia 450/480cc injectors

$120 - ARP head stud kit

$2000 - Ported, Flowed & Machined headwork including new valve seals, valve seats and valve guides

$200 - EPP Clear camgear timing cover

$200 - Cometic gasket kit including rocker cover, intake manifold, intake collector & exhaust gaskets

$250 - Cometic head gasket 87mm x1.2mm

$100 - Aerospeed adjustable exhaust cam gear pulley wheel

$900 - Tomei 256 intake / 256 exhaust poncam gear set

$400 - Tomei 8.8mm high lift springs

$50 - Tomei oil gallery restrictor

Suspension: - $3,500

$1300 - Bilstein front and rear suspension shocks, with ‘lowering’ circlips, using standard springs

$600 - Whiteline front and rear adjustable swaybars

$200 - Dayz adjustable engine swaybar, custom boot swaybar

$100 - Whiteline front castor kit

$100 - Whiteline rear subframe alignment kit

$1200 - Uwe Jean Ballou R32-GTR 17x9.5 inch rims with Marshal Mactrac TX tyres, 235/45/17

Brakes: - $2,000

$500 - Maltech stainless steel braided brake lines, front and rear

$400 - DBA slotted front brake discs

$100 - Cusco brake master cylinder clamp

$1000 - Panoz Outlaw 4000-series front billet aluminium 4-pot disc calipers w/ Wilwood racing pads

Interior: - $3,000

$300 - SAAS D1 Drift adjustable race seat

$200 - Flynn racing seat rail

$100 - Apexi electronic boost gauge

$200 - 3x 2" DIN gauge setup including boost pressure, oil pressure & oil temperature

$850 - AEM F/IC-8 copgyback ECU with Dell c640 latitude laptop

$350 - Greddy Profec-B spec-ii dual stage Electronic Boost Controller, set to 1.00 bar and 1.20 bar

$1000 - Toshi ecu remap, tuned by Boostworx

250rwkw for roughly $20,000 in parts, plus servicing/labour costs - search ebay for savings

[darrinspencer]

Don't do half that crap listed above. I can not believe someone wasted their time typing all that out.

[kidafa]

  darrinspencer said:

Don't do half that crap listed above. I can not believe someone wasted their time typing all that out.

Well lets see your opinion on what to do then No including 26 conversion and a 34gtr front end cos not all of us have mega coin to blow! Does look like the hottest stag in aus imo though mate

I'd be doing:

3" turbo back

Split Fires (if yours are missing AT ALL)

FMIC

EBC hi at 12 psi

Pod in a box with cold air feed and $5 intake pipe mod

SAFCII and SITC or as you have a S2 get the chip put on the board

[QWK32]

Darrin is still running the RB25 Neo. To see 250rwkw and just above can be done on an unopened engine. basically what i will be running is:

- FMIC

- Ecu

- Fuel pump, not because the old one is dying but just for piece of mind

- Injectors

- Turbo upgrade, stock turbo would see 200 but not much more.

- Full 3" exhaust

- Air Filter with CAI

running a safe tune and boost level i hope to see between 220rwkw and 250rwkw. total cost for me, around the 5k mark.

Edited November 7, 2009 by QWK32

[M I K E]

  Tangles said:

250rwkw for roughly $20,000 in parts, plus servicing/labour costs - search ebay for savings

alot of the stuff listed has nothing to do with the power output though, so 20k for 250rwkw is a bit silly to write

rb25's are amazing motors, you don't need to spend alot to get them to 250rwkw - you don't even need to open them!

[32TAXI]

All that my Neo is getting:

Z32 afm + plug

Apexi PFC

Blitz 525cc injectors

Greddy Fmic

Blitz Nur front pipe + cat back

HKS intake pod

Alloy radiator

HKS GTRS/2535 or similar

Bosch intank pump

Should see over 220+awkw!

Edited November 8, 2009 by RED513

[KiwiRS4T]

  RED513 said:

All that my Neo is getting:

Z32 afm + plug

Apexi PFC

Blitz 525cc injectors

Greddy Fmic

Blitz Nur front pipe + cat back

HKS intake pod

Alloy radiator

HKS GTRS/2535 or similar

Bosch intank pump

Should see over 220+awkw!

Assuming that your exhaust is 3in the main ingredient is a big turbo such as GT 3076 (or even a GCG highflow) and you should get over 240awkw. You could save money by getting a nistune instead of the PFC and spending the money on the turbo! (Oh and get a boost controller instead of the radiator).

[KiwiRS4T]

  QWK32 said:

Darrin is still running the RB25 Neo. To see 250rwkw and just above can be done on an unopened engine. basically what i will be running is:

- FMIC

- Ecu

- Fuel pump, not because the old one is dying but just for piece of mind

- Injectors

- Turbo upgrade, stock turbo would see 200 but not much more.

- Full 3" exhaust

- Air Filter with CAI

running a safe tune and boost level i hope to see between 220rwkw and 250rwkw. total cost for me, around the 5k mark.

To get to the higher figure you may need an uprated afm.

[666DAN]

  RED513 said:

All that my Neo is getting:

Z32 afm + plug

Apexi PFC

Blitz 525cc injectors

Greddy Fmic

Blitz Nur front pipe + cat back

HKS intake pod

Alloy radiator

HKS GTRS/2535 or similar

Bosch intank pump

Should see over 220+awkw!

Sounds literally exactly the same as a Neo engine I know My advice though, get the GTRS instead. The 2535 is great, but you'll end up wanting more

[EJD001]

my neo is running 221kw

simple mods being FMIC,3in turbo back exhaust and nistune. need a wastegate and EBC and ill easy see a bit more power!

[Tangles]

  M I K E said:

alot of the stuff listed has nothing to do with the power output though, so 20k for 250rwkw is a bit silly to write

rb25's are amazing motors, you don't need to spend alot to get them to 250rwkw - you don't even need to open them!

mate you can do it for 5grand

obviously my list is the whole thing, suspension,brakes,engine,electronics, 15k to 20k depending how you do it

it is a simple list & of course most parts arnt needed for power production - its not rocket science (ie braided brake lines wont net 1billionty kw)

why do I have to point that out?

[M I K E]

  Tangles said:

mate you can do it for 5grand

obviously my list is the whole thing, suspension,brakes,engine,electronics, 15k to 20k depending how you do it

it is a simple list & of course most parts arnt needed for power production - its not rocket science (ie braided brake lines wont net 1billionty kw)

why do I have to point that out?

haha sif you took that as a personal dig? but if you want to get technical, you did write:

  Tangles said:

250rwkw for roughly $20,000 in parts, plus servicing/labour costs

[32TAXI]

  KiwiRS4T said:

Assuming that your exhaust is 3in the main ingredient is a big turbo such as GT 3076 (or even a GCG highflow) and you should get over 240awkw. You could save money by getting a nistune instead of the PFC and spending the money on the turbo! (Oh and get a boost controller instead of the radiator).

Already got Pfc fitted and tuned, Injectors and Z32 awaiting bigger turbo!

Need a radiator as seeing 96'c and Qld summer coming up!

[Tangles]

  M I K E said:

haha sif you took that as a personal dig? but if you want to get technical, you did write:

hahhaa

fishing

[RBfreak69]

Hi guys, Ive got a 99 Stagea RS Four S and im wanting to start building up an engine, ive found a 25det neo with 89,000kms for $2000. Just wondering what aftermarket parts i should get, nothing too expensive.

Cheers

[Ben C34]

That question is so pointless and not answerable if you don't specify a budget and what you want.

Why build an engine anyway?

Unopened engines are good for well over 350kw.

[RBfreak69]

I don't want to spend heaps, Don't really know what my budget is yet. just looking around 260kw mark atm. I wasnt meaning opening it up. Just external stuff

Edited March 14, 2014 by RBfreak69

[wolverine]

FMIC, bigger injectors (480cc),new fuel pump, bigger turbo (hiflow), engine management (Nistune), 3" turbo back exhaust would be the most basic modifications required.

You can choose, bigger and better items but that is a basic starting point.

[RBfreak69]

Sweet as man. Cheers for that. Do nistunes just plug in or is it a whole new loom?