Tech Guides
4G63 and 4B11 rebuild kits: Evo engine packages explained
How 4G63 rebuild kits differ by Evo generation: CP pistons, Manley or Eagle rods, ARP studs, ACL bearings and compression, stocked in NZ. Order yours now.
Link vs Haltech: how to choose an ECU for your build
Link G4X or Haltech Elite and Nexus? An even handed look at plug in fitment, wiring, tuner support and expansion for NZ builds. Compare the ranges here.
Link and Haltech displays: CAN gauge, MX dash, iC-7 or uC-10
Link CAN gauge and MX dashes against the Haltech iC-7 and uC-10. What each display suits, plus keypads and looms, all stocked in NZ. Pick your dash here.
Kelford cams: how to choose a profile for your engine and use
How to choose Kelford cams for a street, track or drag build: duration, lift and the valvetrain parts they need. NZ made in Christchurch, in stock now.
Garrett G Series turbo sizing: picking the right frame and housing
Garrett G Series sizing made clear: G25, G30, G35, G40 and G42 frames, what the A/R and flange choices do, and which suits your build. NZ stock, ships fast.
Fuel pump sizing: DW, Walbro, AEM, Bosch and brushless
How to size a fuel pump for a boosted build: in tank vs external, E85, hangers and surge tanks. DW200, DW400 and 340lph pumps in NZ stock. Order online today.
Fuel pressure regulators compared: Turbosmart, Tomei, Radium, Aeromotive
Choosing a fuel pressure regulator: rail mount vs bypass, 6AN or 8AN, boost reference and gauges. Turbosmart, Tomei and Radium in NZ stock. Order online today.
External wastegate sizing: 38mm, 45mm, 50mm or 60mm
External wastegate sizing without the guesswork: when to run 38mm, 45mm, 50mm or 60mm, how to beat boost creep, and what to order with it. Shop NZ stock.
Looking for an engine for sale in NZ? Read this before you buy
Searching for a 4G63, 3SGTE, RB26 or EJ20 engine for sale in NZ? Compare rebuilding, buying a used import and our rebuild packages. Start your build here.