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BC Racing, ecumaster, Extreme Clutch, Extreme Tyres, G16, G16E-GTS, g25, g25 660, garrett, Gazoo Racing Yaris, GR Yaris, gr yaris hillclimb, gr yaris motorsport, gr yaris parts, GR Yaris Parts UK, gr yaris power, GR Yaris power upgrades UK, gr yaris race car, GR Yaris Race car UK, gr yaris racing, gr yaris remap, gr yaris sprint car, gr yaris time attack, gr yaris track, gr yaris track days, gr yaris tuning, gr yaris tuning box, GR Yaris Tuning UK, GR-FOUR, kelford, Kelford Cams, mishimoto, supertech, tarox brakes, Toyota Sprint Series, toyota tuning, Toyota Tuning UK, Toyota Yaris, Xtreme, Xtreme clutch - June 10, 2021 by Adrian Smith

Fensport GR Yaris - 2025 Tech Specification

 
Fensport GR Yaris tech spec

 

Tech Spec - 2025 Fensport GR Yaris

Engine: G16E-GTS

Ported cylinder head
Combustion chambers reprofiled
Direct Injection removed - Di ports plugged
Supertech inlet & Supertech exhaust valves
Supertech valve springs
Kelford 267-A Camshafts
Lamspeed H13 head bolts
Rest of engine is stock

Garrett G25-660 Turbocharger - Low boost 2.3 bar - High boost 2.6 bar
Fensport custom manifold with 45mm Turbosmart wastegate
Fensport custom 2.5" alloy intercooler piping from turbo, 3" from intercooler
Fensport custom intake manifold with larger GT86 throttle body
Fensport carbon airbox 
Blitz SUS Power air filter
4" Alloy air intake
Fensport custom made 2 Litre catch can

Cooling: 

Hel Oil cooler kit 405mm track kit
Mishimoto M line 600 x 300 intercooler with custom pipe work
Davies Craig electric water pump conversion mounted where air con compressor was.
Fensport custom swirl pot
Silicon water hoses

Drivetrain:

X Shift 7 speed sequential gearbox with carbon shifter
Xtreme Rigid centre 184mm Twin Plate clutch & steel flywheel
Hardrace heavy duty engine mount
Hardrace heavy duty gearbox mount
Verkline engine mount - pitching stopper
Cusco MZ 1.5 way rear LSD
Custom maps to control torque split, 50% rear on launch, up to 65% rear on drive depending on steering angle, front wheel drive on high speed 5th gear upwards depending on steering angle.

Electronics:

Ecumaster EMU Black engine ecu controlling engine, with launch control, anti lag, flat shift, failsafe water meth injection, 3 fuel pumps, rear diff control, stock fan, electric water pump & power steering

Ecumaster Power Distribution Module

Ecumaster switch panel 

Ecumaster GPS

Ecumaster ADU 7" Dash with logging

Fuel system:
Stock tank and pump used as a lift pump
Fuel swirl pot with 2 x 255 Litres per hour pumps (staged)
Turbosmart 1200 fuel pressure regulator with return to tank
Custom fuel rail & lines
Bosch Motorsport 1350cc injectors
ERL Aquamist water methanol injection - 1 jet pre turbo and 1 jet pre throttle, baffled tank.

Exhaust:
Fensport stainless front pipe leading to a 3" titanium system with 2 extra resonators

Body:
Pandem Rocket Bunney wide arch kit with Fensport carbon rear supports. Arches cut out to suit larger track width.

Fensport custom rear wing, originally from a Mosler GT car.

Track width increased +140mm rear, +110mm front

Custom cages FIA multipoint roll cage

Bodyshell lightening including removal of seat rails, rear boot floor, roof supports, doors lightened and side impact bars removed. Perspex side windows.

Front bumper - all unnecessary air intakes blocked - only air allowed is for intercooler, radiator and air intake for engine. No air allowed into wheel arches.
Intercooler and radiator carbon intake guides

Fensport custom front splitter

Rear bumper - remove reverse light and a larger vents to allow trapped air out.

Weight:
Ready to race less driver 1080Kgs

Brakes:

Front: Tarox F2000 Brake Discs, Endless MX72 Plus brake pads, Goodridge brake hoses, Castrol SRF brake fluid

Rear: Standard discs and calipers Endless MX72 Plus brake pads, Goodridge brake lines.

Bosch Motorsport ABS system with 12 maps

Suspension:
BC Racing ER Series - external reservoir coilover kit, 8kg springs front and rear.
-4.2 degrees negative camber front, -2.8 rear.
Swave adjustable camber arms
Swave adjustable toe arms
Whiteline rear anti roll bar
Verkline tubular front subframe
Verkline tubular rear subframe
Verkline rear diff mount


Wheels & Tyres:
2 Forge ZF1 alloys 10 x 18
Fensport 25mm wheel spacer
Extreme VR-2 tyres - 265/30/18

Safety:
Custom cages multipoint cage FIA approved
Corbeau Revolution X racing seat
Corbeau alloy side mounts
FIA 2021 steel seat rails
Cartek solid state cut off switch
Lifeline fire extinguisher 

 
Fensport GR Yaris 2024 in workshop
 
Fensport GR Yaris 2024 - rear view
Fensport GR Yaris 2024 engine bay
Fensport GR Yaris 2024 - front bumper off
Fensport GR Yaris 2024 cockpit - interior
 
Fensport GR Yaris 2024 - rear end with bumper off

 

Fensport GR Yaris - The Build Diary

Fensport GR Yaris - Gallery

Fensport GR Yaris - Video


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3 comments

  • MCA Suspension October 20, 2021

    One of our favourite GR Yaris builds!

  • JAMIE August 17, 2021

    Great car
    Curious as to why you delete direct injection. I understand DI has a cooling effect as high pressure liquid has a change of state to low pressure vapour. So allows higher boost and compression. Multiple injections also possible in small time frame.
    Thank you

  • Andrew Watson July 12, 2021

    Adrian never messes about. Would be good for taking my dog to the dog walks with some strategically placed blankets.

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