NZ Performance Car - - 4 & Rotary Nationals 2017 -

This 4G63T-pow­ered GSR nearly didn’t make it into the show, as it was the wrong colour for this year’s UMF club theme, so owner Nigel hopped on the gun and gave it a few licks to suit. That clearly rep­re­sents a hearty ef­fort, but if you take a gan­der into the en­gine bay, you’ll just be blown away. Off the bat, you’ll no­tice the rather large HRC40 hid­ing di­rectly be­hind the grille, held in place by a BNR Engi­neer­ing man­i­fold that in­cludes a TiAL 44mm V-band MVR wastegate. To sup­port such mad­ness, the bot­tom houses Woss­ner pis­tons and Mol­nar rods, at­tached to a seven-bolt crank and fit­ted with ACL Race Se­ries bear­ings. Up top, the heads were cleaned out and now house Hart­ley En­gines and Mo­tor­sport camshafts that op­er­ate the BC stain­less valves and springs — air is fed in by an 80-mil­lime­tre throt­tle body, whereas the exhaust is rid­ded by a 3.5-inch mild-steel sys­tem through to an Adrenalin R muf­fler. A Wal­bro lift pump–and–twin Bosch 044 combo feeds fresh E85 into a HKS fuel rail that con­tains Bosch 1680cc in­jec­tors, while a Link G4 Plug and Play mon­i­tors the whole or­deal. Ignition re­mains fac­tory at this stage, with up­graded Ea­gle leads, although Nigel in­tends on ad­dress­ing it at a later stage. A Fenix Per­for­mance half-size ra­di­a­tor and in­ter­cooler tuck away nicely, with an af­ter­mar­ket oil cooler hid­den among it all, too. Want­ing to keep every­thing look­ing rel­a­tively tidy, the bay has been semide-loomed. The en­tire pack­age pro­duces a hefty 403kW at all four.

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