E&H WRX BACK ON TRACK

NZ Performance Car - - Line Inside -

Fol­low­ing a lengthy three-year hia­tus from the track, the E&H Mo­tors V11 WRX is back bet­ter than ever and with its sights set on the world stage. The last five years have seen the car de­velop into a very com­pet­i­tive plat­form at the hands of Carl Ruiter­man, but with his fo­cus now on com­pet­ing off-road, younger brother Hans is about to step into the driver seat, and de­vel­op­ment is set to be taken to the next level with aero re­fine­ment on the cards, which should hint at what event his eyes are firmly fixed on.

One of the big­gest projects with the hatch has been the de­vel­op­ment of the new stroked 2.1-litre en­gine, which pro­duces 650Nm of torque from 3600rpm and all the way to red­line. Carl told us they stopped at 29psi (two bar), which pro­duces 597kW (800hp) on Gull E85, but there is plenty more in it with the new BorgWarner EFR 8374 twin-scroll turbo. The block it­self fea­tures HKS pis­tons, and Car­rillo rods join cus­tom E&H-spec camshafts, over­sized valves, and ex­ten­sively ported heads, and it has also re­ceived ex­ten­sive oil­ing mod­i­fi­ca­tions, with ported gal­leries, a ported oil pump, a cross- drilled crank­shaft, and a spe­cially de­signed catch­can that uses vac­uum to keep oil from stor­ing in the heads and re­turns it to the cus­tom gated sump quick smart. A new in­let man­i­fold has also been de­vel­oped, shift­ing the trum­pet lo­ca­tion and also mov­ing the tra­di­tional throt­tle-body po­si­tion to en­sure even dis­tri­bu­tion across all four run­ners. Carl told us that, over the com­ing months, he will start to re­ally lean on the en­gine to find its break­ing point, and see ex­actly how much power it can re­ally make.

In ad­di­tion, the ra­di­a­tor has been shifted to the rear with a wa­ter-sprayer sys­tem, side air ducts, and a Davies Craig EWP 150 con­trolled by the Emtron KV89 ECU. “This is the sin­gle big­gest im­prove­ment we have made to the han­dling of this car. Both the bal­ance and the brak­ing have been greatly im­proved by shift­ing the ra­di­a­tor,” said Carl.

The ad­di­tion of flares has meant 18x11s with 295s at all cor­ners to pro­vide plenty of grip, and Carl is ea­ger to see how Hans goes be­hind the wheel and where the aero de­vel­op­ment can take the al­ready po­tent hatch.

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