Tech Guides
Koyorad radiators: which one fits your car
Which Koyo radiator fits your car: JZX100, R32 GTR, Evo, WRX, Civic and MX-5 part numbers, with 36mm and 48mm cores explained. NZ stock, ready to ship.
Fuel injector sizing: picking the right cc for your build
How to size fuel injectors for a boosted build: ID1050, ID1300 and ID1750 cc ratings, E85, plus 11mm and 14mm fitment. NZ stock, straight advice. Order today.
Fuel cells and surge tanks: fixing fuel starvation properly
Fuel surge tank or fuel cell? How Radium surge tanks, FCST-X units and fuel cells stop starvation on track, with NZ stock and racer advice. Order online now.
Forged pistons compared: CP, JE, Wiseco and Manley
Forged pistons compared for NZ builds: CP, JE, Wiseco and Manley, plus compression ratio, oversizes and matching rods. See the range and order with confidence.
Barra XR6 turbo build parts: what to buy and when
Barra XR6 turbo build parts in NZ: ARP studs, Cometic gaskets, JE and Manley forged pistons and rods, ACL bearings and Kelford cams, stocked here. Shop now.
Blow off valves compared: TiAL, Turbosmart and GFB
Blow off valve or plumb back? Compare TiAL Q, Turbosmart RacePort and GFB valves for your turbo build, with NZ stock and straight advice. Shop the range now.
ARP head studs vs head bolts: what to fit and when
ARP head studs vs factory head bolts for NZ turbo builds, plus ARP2000 kits, main studs, rod bolts and how to torque them. Find the kit for your engine here.
ACL race bearings: picking the right set for your build
ACL Race Series bearings in NZ: which rod, main and thrust sets suit RB, SR20, 2JZ, 4G63 and EJ builds, plus sizing and clearance. Order from Palmerston North.
Turbocharging a 3SGE Beams: what it really takes
There is no bolt on 3SGE Beams turbo kit. Here is the honest build list: forged bottom end, turbo, gate, fuel and cert, with parts stocked in NZ. Shop now.