Nissan S15 — Troy Jenk­ins (Pro)

NZ Performance Car - - Demon Energy D1nz -

Troy’s car has seen a se­ries of de­vel­op­ments in the sus­pen­sion depart­ment since switch­ing from Pro-Am to the Pro se­ries, but one as­pect that has al­ways stayed true in his car, from the SR to the RB, is the C’s Garage 555 knuck­les and LCAs.

“We [Troy and brother Ben] have al­ways run them — it’s such a solid set-up and we’ve never had to re­place any­thing be­cause of break­ages. We’ve had a few big hits, in­clud­ing my one at WTAC, but never had an is­sue.”

It may not be 90 de­grees of lock, as Troy tells us, but there is a fair amount of it dialled into the car.

“C’s [Garage] mod­ify the lower knuckle by cut­ting it, short­en­ing, and re-weld­ing to al­low for more move­ment. They also ex­tended the LCA by cut­ting, weld­ing in a new sec­tion, and then brac­ing it all un­der­neath.”

Putting it down to a team se­cret, the set-up still runs a small amount of Ack­er­mann, but Troy en­sures us that the steer­ing self-cen­tres as it should with­out is­sue. The front uti­lizes a White­line sway bar to com­pen­sate for the weight of the RB30.

“It’s re­ally, re­ally heavy when you put it in there, so that was a must,” he says, and the rear still runs the fac­tory item. The shocks are from Stance Sus­pen­sion in the US, and are also run by For­mula D driv­ers like For­rest Wang and Dan Bur­kett. The team cor­ner-weighted the S15 to cal­cu­late the right spring rates and sent the de­tails over to Stance Sus­pen­sion, which promptly sent the coilovers and the toe and trac­tion arms to suit.

Troy told us that although the Part Shop Max pieces he had pre­vi­ously run worked well, the Stance Sus­pen­sion equiv­a­lents have made the car a lot more sta­ble, and it is now eas­ier to set up cor­rectly. There’s a lot of me­chan­i­cal grip in the car, so the team play with damp­en­ers and tyre pres­sures to suit the track, and the rear gen­er­ally runs a low spring rate (5kg) to keep it soft and grippy. When things get a bit wet, the rear sway bar will be re­moved to chase even more grip.

STRUTS: STANCE SUS­PEN­SION COILOVERS; (F) 12KG SPRING, (R) 5KG SPRING

KNUCK­LES: C’S GARAGE 555

ARMS: C’S GARAGE MOD­I­FIED LCA, STANCE SUS­PEN­SION TOE AND TRAC­TION ARMS

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