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R34 Gtt Power-fc Tuning

John M

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I just joined this forum, and need some ones help tuning my power FC. Im located in the U.S. I have ordered a Datalogit and want to see if someone would be willing to help me set up a decent map, or at least get me started. I've got an S14 with 98 R34 GTT RB25DET Neo motor running on a base map. I just recently bought the car and the previous owner did not set the timing right so the motor is getting a full look over. there is some valve tick and the head will be pulled off and sent to a machine shop to get re-done. after i get it all back together, i would like someone to help me tune it by me sending a datalog, and getting a Ign/Inj map back.

here is a little more about the car.

Motor (~2,500 Miles on it)

Neo RB25DET out of a '98 R34 GT-T (essentially a built RB26 bottom end w/ a Neo RB25 head.)

Block/Head cleaned and milled to spec, valves adjusted (Revolutionary Performance (RPM) in Mt. Juliet)

RB26 (R33) GTR Crank w/ longer oil pump drive

RB26 8.5:1 CP Forged Pistons

RB26 Forged Rods

ARP Fasteners

ACL Bearings

Cometic 1.1mm MLS Metal Head Gasket

Greddy Intake Manifold (Modified stock Fuel Rail to seat injectors properly)

Greddy Timing Belt

Greddy Oil Catch Can

OEM Infinity Q45 Throttle Body

OEM Nissan Z32 Throttle Position Sensor

OEM Nissan Timing Belt Tensioner

OEM Nissan Timing Belt Idler Pulley

OEM Nissan Water Pump

OEM Nissan Thermostat

OEM Nissan Intake Manifold Gasket

OEM Nissan Exhaust Manifold Gasket

OEM Nissan Valve Cover Gaskets

OEM Nissan 91’ Sentra IACV

OEM Nissan N1 Oil pump

-10AN Head to sump Oil Return Line

Air Conditioning Delete

Engine/Trans Mounts

Syko Performance motor mount kit

OEM Skyline R33 Cross-member

Automatic S14 Transmission x-member

Peak Performance Pro Transmission Mount

Transmission / Drive-train

R34 RB25 Pull style clutch

Sprung 6 puck Kevlar clutch disc (from Tennessee Clutch & Supply)

OEM Resurfaced Pressure Plate

OEM Resurfaced Flywheel

One Piece Aluminum driveshaft.

Stock Open Differential


Walbro 255lph fuel pump

Nismo Fuel Pressure Regulator

OEM Nissan Z32 TT Fuel Filter


Factory RB25 T28 turbo, factory exhaust manifold

HKS BOV (SSQV - new version)

Syko Performance 3" Stainless Steel Turbo Elbow

Blitz SR20 3" Stainless Steel Downpipe

Resonated 3" Stainless Steel Test Pipe

Apexi N1 3" Dual Cat-back Exhaust


Griffin Aluminum Radiator

Flex-a-Lite Dual 12" Pusher E-fans w/ thermostatic relay

Hybrid FMIC, 3" inlet, 3" outlet (custom piping)

Apexi Power Intake


Megan Racing 32-way adj. Street Edition Coil-overs

Battle Version Rear Upper Control Arms


Z32 TT Front Brakes

Z32 TT Front Caliper Conversion lines

Z32 TT Front Slotted rotors


Forged RAYS Engineering 350z Track Edition wheels

(F) 18x8 +33 (Bridgestone Potenza RE 960AS Pole Position 225/45/18)

® 18x8.5 +30 (Nankang NS-II tires 255-35)

Electronics / EMS

CARL H approved engine harness and gauge cluster calibrated to read correctly

ER34 Apexi Power-FC Standalone EMS w/ Hand Commander

AEM Tru Boost Gauge/Controller

AEM Uego Wideband

Summit Battery Trunk Relocation Kit (0/1 Ga. Kit)

OEM Nissan Quest Alternator (140amp)

I have also started sort of a build thread on the NicoClub forum. you are welcome to check it out and let me know what you think.



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I can offer you a remote control power fc tuning service where I take control of your laptop and map it for you on the fly while you drive it.. (preferable on a race track)

It will cost $300usd and I will keep working with you untill the tune is 100% .

This is what you need

1: Datalogit

2: Air Fuel Ratio Meter with 0 - 5v output

3: Laptop with decent battery life OR a inverter for laptop power or 12v laptop power supply

4: 3g mobile phone connection or any fast (stable) wireless internet connection with at least 100mb of data + another phone to call me if needed

5: A Friend to be in the passenger seat to hold the laptop & take directions from the screen

6: Race track or somewhere SAFE to drive your car on full noise OR a Dyno

Have a read of this thread, there is a example of a couple of cars i did for a guy in Georgia (near Russia) as he has no tuners in his area. Of them was a race car and ended up winning the series.


or click the "Remote Controll Power FC tuning thread" in my Sig.

PM me if your interested

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