21/07/2026
Build Breakdown | Stuart’s NB sprint car
Built from a stock example over the last seven years, this supercharged NB is the perfect car to take on track days, sprints and AutoSOLOs - and that’s exactly what owner Stuart uses it for.
“I started feeling the need to do something competitive, so I did my first autotest in 2021 at Donington on the launchpad, as well as regular autotests at Curborough with Cannock Car Club,” he told us.
Since then, the car has continued to level up; it now has a fully built engine and a Rotrex supercharger, which develops enough boost to deliver a smooth, predictable and linear 300 hp. That meaty power band - in combination with a stripped interior, sorted suspension setup and Michelin slicks - makes it a strong performer on sprint courses.
Spec Highlights:
Rotrex C30-92 supercharger with T2 impeller
Custom pipework by Mike at Optimal Graphics and Brad at Purgetec
Wossner forged pistons
Manley forged rods
Boundary Stage 3 oil pump
ATI Super Damper
ARP bolts & studs
Cometic head gasket
Mishimoto oil cooler, radiator and twin fan
DaveFab catch can
Forge blowoff valve
Jass Performance aluminium undertray
ME442 ECU mapped by AP Racing engines
Racing Beat exhaust manifold
Good-Win Racing sports cat
Racing Beat Power Pulse backbox
DeatschWerks DW200 fuel pump
Radium fuel rail and FPR
SPS Motorsport 700cc injectors
3J driveline differential with sintered plates
4:1 crown wheel and pinion gear
Reinforced diff casing
Powerflex diff bushes
Competition Clutch flywheel
Xtreme Stage 2 ceramic clutch
Beatrush diff brace
HEL braided clutch fluid line
Meister R Clubrace coilovers (12.5kg/7kg springs)
Whiteline anti-roll bars
Superpro drop links and bushes
Stock calipers with Mintex 1144 brake pads
HEL braided brake lines
GC Fabrications GCR3 roll bar
Sparco Grid Q seats
Sabelt 4-point harnesses
VDO gauges
ACW polycarbonate windows
Momo Mod.88 steering wheel
Aerocatch bonnet catches
DaveFab washer bottle relocation kit
Cut rear bumper
Front and rear tow straps
Ignition cut off and fire extinguisher pull cords
Braid 15x7 wheels on Michelin S5C+ slicks (19/57-15)
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