What has four wheel drive, 818bhp and a four wheel TAROX brake kit? Fensports infamous GT4 X, that’s what!
Fensport has long been the go-to powerhouse for all things Toyota 3S-GTE engined and they’ve build some of the fastest sprint cars the UK has had to offer in their time. The GT4 X concept was born out of disappointment that Toyota chose not to offer a 4wd version of the 7th Generation Celica.
Fensport already had a killer formula with a proven drivetrain and power plant in thier Corolla build, so this concept was transferred over to the Celica project. They didn’t start with just any old 7th gen though, this car was based on the TRD M Sport which comes from factory with lightening and strengthening for motorsport use. The result is a car much lighter than the GT4 the powertrain is taken from.
We’re talking sub 1200kgs full laden sort of weight here and with 800+bhp going to four wheels, it’s no surprise it is incredibly fast. Top speed is recorded as 202.22 mph, it will sprint a 1/4 mile in 9.74 seconds and even came 4th at the legendary Goodwood Festival of Speed Hillclimb event. A staggering feat for a non works car!
Check out the full spec list below:
The floorpan of the car has been slightly altered to accept propshaft centre mount and an exhaust tunnel, the rear spare wheel well has been removed, and the fuel system installed where the back seat once was.
No chassis rails have been cut, however 2 towers welded in to locate 4wd corolla rear subframe, which is modified to accept the GT4 rear differential.
The rear hubs are also from the corolla 4wd.
Front Crossmember is from corolla 4wd and modified for 3sgte engine /transmission, all engine mounts are custom made.
Front radiator support panel has been replaced with T45 steel member to straighten up both intercooler and radiator to aid airflow and also increase engine bay space.
The A,B & C pillars are strengthened via extra spot welding at the facory by TRD.
The extensive roll cage is a fully tig welded wrc type multi point, links to front turrets, transmission tunnel, rear turretts and double X door bars. The under dash bar is also incorporated into the cage.
The front bumper bar is replaced with T45 steel
The rear bumper bar is lightweight alloy
2 extra rear chassis stiffening underbraces in aluminium support carbon boot floor.
All underseal and sealant removed.
Doors lightened and internal door bars removed, 8.5kgs per door saved, electric windows and glass retained.
3SGTE, 2.0 litre twincam 16 valve turbo, as used in both the MR2 Turbo and Celica GT4, using a TTE Group ‘A’ block and TTE crankshaft, capacity is standard 2.0 litres.
Crower steel connecting rods with custom JE Forged Pistons, ARP Bolts, metal headgasket, Lightweight alloy pulleys.
Fensport Racing ported and flowed cylinder head with racing valves and double valve springs, TTE vernier pulleys and HKS 272 degree camshafts.
The inlet manifold is completely custom made to suit the new celica installation and has a short runner design with internal ram pipes and a 75mm throttle body.
The fuel system is completely custom and installed where the rear seat would have been, The tank is alloy and foam filled, holley lift pump, swirl pot then aeromotive main pump, -10 braided fuel lines, 1000cc injectors and aeromotive fuel pressure regulator.
Garrett GT35X Billet unit using a a smaller 0.63 AR exhaust housing, mounted on a Corolla WRC manifold modified to accept a TIAL 44mm remote wastegate which is now vented back in to the main exhaust to comply with noise regulations. This new set up provides better response which is needed for the Toyota Sprint Series, this setup produces great response and approx 680bhp.
Drag setup uses a larger 0.82 ar turbine housing and a 75 shot of nos.
The exhaust system is stainless steel, using 90mm mandrel bent pipework from turbo to single back box with a Blitz Nur Spec R custom rear silencer.
GT4 alternator modified with corolla regulator and Fensport alloy oversize pulley, TTE wrc alloy mount with carbon adjustment bracket.
Custom breather system with stainless braided pipework leading to a custom alloy tank with oil return line. Also incorporates the power steering resevoir.
A HKS front mounted intercooler, from the supra JZA80, is used with custom made “lightweight thin wall” 0.9mm stainless steel 3″ piping and Samco silicon hosing.
The cooling system has a custom alloy radiator, electric water pump, alloy header tank, swirl pot, a trd low temp thermostat and Evans coolant.
Oil cooler with braided lines and thermostat.
Gearbox oil cooler
Fensport Racing Triple plate clutch with lightweight flywheel
PPG 5 speed straight cut, dog gearbox with a low ratio 4.1 straight cut final drive. Ikea sequential shifter.
Cusco MZ plate type Rear LSD
TRD rear differential front mounts, Fensport Racing uprated rear diff mount.
Propshaft retaining rings.
The Front suspension is AST 3 way adjustable coilovers with camber adjustable top mount
SuperPro front wishbone bushes with increased castor and anti lift. SuperPro anti roll bar bushes.
Rear suspension uses AST 3 way adjustable coilovers
Whiteline adjustable anti-roll bar with poly bushes from a MR2 turbo is mounted behind the axle.
Whiteline adjustable droplinks.
C-one lower rear arm bushes
Front – Tarox 10 pot GT caliper with 340mm discs
Rear – Tarox 6 pot caliper with 280mm discs
Braided steel lines throughout, all lines inside.
In car adjustable brake proportioning valve.
Wheels and Tyres:
Volks Racing TE37, 7 .5 X 17 ET35 with Toyo R888 tyres 225/45/17.
MoTeC M400 Pro ECU is used to control the engine as well as Boost Control, Water injection, Full throttle gearchange, Launch control, Data logging and Wide band Lambda, Nitrous Control.
Motec digital Sport Dash displays all ecu parameters as well as speedo, gear position, shift lights, warning lights, oil pressure, fuel pressure, engine oil temp, gearbox oil temp, and rear differential oil temp.
Custom wiring loom throughout.
FIA electric cut out switch
Interior – Flocked dash & interior plastics.
Recaro Profi Race seats (6kgs), Momo quick release steering wheel
Schroth 5 point harnesses.
Spa firefighter 4kg plumbed in electric fire system, 3 engine bay and 3 interior extinguisher jets.
Race battery relocated behind passenger seat.
Varis Carbon fibre bonnet, with scoop for turbo clearance
Carbon roof scoop.
GT front bumper modified for more airflow and C-one front spoiler
Seibon Carbon fibre tailgate with tinted plexiglass
GT side skirts
Varis GT Carbon rear wing
TRD M sport rear bumper corners