R32 GTST rb25 neo rebuild

[CHRIS MW33]

NICE BUILD WHAT CAMS ARE YOU GOING TO RUN WITH THE ENGINE? PM IF YOU WANNA GO LARGER THAN 260 CAMS.

 

 

[Rekin]

Injector loom modified, injectors fitted, splitfire coilpacks fitted & engine loom wiring in progress...

 

Ditched the thermofans as they weren't really keeping temperatures under control, back to engine fan but a bit too close for my liking... 

Have purchased GKTech engine fan which supposedly is thinner & more efficient (win-win) - on its way....

Dummy-fit the top intake manifold & Neo engine cover to see how it will all look. So far so good! Couple of hoses on their way from Japan to finish the intake plumbing...

 

Hopefully finish-off the wiring by next weekend & get the car ready for some intercooler, intake pipe & dump/front exhaust fabrication!

[admS15]

Looking good[emoji106]

[CHRIS MW33]

nice, i hope the gtech cools great i am looking into those blades as well. hope to see more updates soon. sounds like your almost to starting stage.

[Rekin]

NICE BUILD WHAT CAMS ARE YOU GOING TO RUN WITH THE ENGINE? PM IF YOU WANNA GO LARGER THAN 260 CAMS.
 
 

Just running the standard cams

[CHRIS MW33]

ok nice nice....following

[Dose Pipe Sutututu]

Awesome stuff man!

Looks like you'll get yours running before mine lol

[DaymoR32]

Loving the progress, making me lean more and more to doing a neo rather than a standard RB25! you had any real difficulties with the wiring so far? or has it all been pretty straight forward?

[iruvyouskyrine]

Wiring Neo in is pretty simple, not much different to normal 25. Let me know if you need any info@rekin and I'll be happy to help. I put a neo in my R32

[Rekin]

Parts galore! Brand new Nissan heater hoses, intake hoses & gktech engine fan.

[Rekin]

9 hours ago, DaymoR32 said:

Loving the progress, making me lean more and more to doing a neo rather than a standard RB25! you had any real difficulties with the wiring so far? or has it all been pretty straight forward?

Wiring still in progress but a lot trickier than a s1 rb25 motor.

The neo loom has so many plugs for TCS, ABS, Sensors, Headlights, etc so its been slow progress to work out which to keep & which to cut.
So far, Ive worked out that the rb20 ecu grabs ignition voltage near the plug at the airbox and its a matter of wiring this to the brown eccs/ign relay & another pin on the ECU.
Im trying to make sure aircon, power steering, hicas, wipers & all dash switches/sensors work with the Neo so am tracing each wire to each plug and working through it slowly.

The Knock subloom on the r32 is separate and connects into the rb20 engine loom; whereas the Neo knock loom is integrated into the Alternator subloom; still working out best way to connect into the Neo loom.

[Rekin]

Working on all the little-bits to make the car go...

Time to flex!

Nothing beats new parts...replacing the coolant lines.

New clutch slave cylinder with custom hose

Tailshaft shortened, balanced & fitted.

Replaced the 30mm Turbo spacer with a 20mm spacer, much  better fitment now, hopefully the dump/front clear the aircon lines now...

With a 7ltr ASR extended sump, means more oil - bought enough for two changes & gearbox oil to suit

 

Hopefully next week we will be in a stage to fire-up and see if my wiring has been done right!

[rx-line]

What compression pistons?

[Rekin]

On 7/14/2017 at 5:34 AM, rx-line said:

What compression pistons?

 

Specifications
Part Number:	SC7297, 14028-6
Make:	Nissan
Engine(s):	RB25DET NEO
Year(s):	1998-2002
Piston Material:	2618 Aluminum
Bore Size:	86.50mm
Compression Ratio:	9.0:1 CR
Connecting Rod Material:	4340 Forged Steel
Connecting Rod Length:	121.50mm
Compression Height:	1.220"

[32Gts't]

Awesome build, can't wait to see this thing fire up.

 

Keep up the good work

[Rekin]

Adapting a Navara speed sensor onto a r34 cog... 

 

[Rekin]

Hose adapters used to match the Neo heater hoses to the r32 heater hoses

[Rekin]

Wiring loom finally sorted and Nistune + flex board soldered in.
Despite AFM plugged in, larger injectors on a stock map and no intake pipe connected, the engine cranked & started!

Car will be towed to fabricator and tuner on Monday, hopefully have a running car this Friday if all goes to plan

[Rekin]

Some fantastic work done by Havoc Fabrication, their attention to detail, care and professionalism is above all else. Thanks to their workshop for tackling this mammoth of a job.

• Custom stainless steel intercooler piping with zero holes cut
• Custom stainless steel intake pipe from z32 airbox
• Custom stainless steel dump & front pipe with another cheeky o2 bung for wideband sensor/tuning

A couple of wiring gremlins to sort out last minute but the car is ready for run-in tuning this Monday  

[admS15]

Looking good[emoji106]