Super Street Network

 |   |  Sutton Brothers Build Nissan S15 Silvia for WTAC
Subscribe to the Free
Newsletter

Sutton Brothers Build Nissan S15 Silvia for WTAC

One family brings together one of the fastest Nissan Silvias on the planet

Matt Greenop
Oct 20, 2015
Photographer: Alastair Richie

Nissan's tendency to build great cars with feminine names makes things harder for manly car fans when they're looking to build a seriously tough machine. Getting a car with a nameplate like Gloria, Cedric, or in this case Silvia, to perform with a bigger serving of manpower than the shameful moniker written across their lovely rear ends isn't just desirable—it's a necessity. Add the fact that building a track car with just the right mix of slick and quick is not a cheap exercise—if you're going to do it right. Getting anything like the correct combo of grunt and gorgeous takes a big budget, a tooled-up workshop, and a huge commitment—unless you're the Sutton brothers from the south Sydney suburb of Woolooware.

Sutton bros nissan s15 silvia andrew wayne sutton Photo 2/26   |   Sutton Bros Nissan S15 Silvia Andrew Wayne Sutton

Andrew and Wayne Sutton have created one of Australia's finest Silvia S15 examples, fueled almost entirely by a passion for the model and a boundless enthusiasm to keep the car permanently improving. Looking at this time attack hero, it'd be easy to dismiss it as another track-themed showpiece—until you scratch beneath the surface.

"Both of us have been incredibly fond of the S-chassis lineup for many years, and not for the strong drift representation but for the car's ability to do the opposite and be of the most enjoyable track and race cars available with a reasonable budget in mind," Wayne says. This departure from big, smoky drifts of S15 lore into the world of grip, plus the faster lap times that come with it, has done nothing to reduce the duo's love for the S15. In fact, it's all they ever really wanted for the car. "To this day, if we had the opportunity to do this all over again, we would end up in the same model car and still remain just as happy with it."

This auto-love equation stems from the mighty SR20DET, one of Nissan's most tunable engines that delivers a far more usable power spread than the Skyline's GT-R. A bit more displacement does give it a helping hand, achieved with a 2.2L stroker kit from JUN, including crank, rods, and pistons with compression sitting way down at 9.5:1 and allowing the Precision turbo to blow 34 psi at the four-cylinder engine, adding up to an impressive 727 hp. We should also note, this car started out as a non-turbo SR20DE—the Sutton brothers have come a very long way with this motor! Kelford Camtech's 1mm oversize valves are fitted on both the exhaust and intake sides of NISMO N2 heads, with Pulsar GTi-R rockers and lifters joining the party.

Sutton bros nissan s15 silvia carbon fiber radiator duct Photo 6/26   |   There's a 737hp SR behind that carbon thing.

Getting this sort of power flowing like it should, and not unzipping Nissan's block, was a complicated process, helped by some well-conceived underhood engineering. The rest of the oxygen comes via an HKS GT-series intercooler with matched Hypertune piping, throttle body, and plenum. On the fueling front, colossal 2,200cc injectors give the final squirt, with a Sard regulator and a Weldon inline pump and two fuel filters pushing it through from a Hypertune custom tank and into a matched fuel rail. Getting this huge volume of gas out is a full titanium exhaust system built by the Sutton brothers, starting with 90mm from the turbo via twin TurboSmart external wastegates. An Autronic SM4 ECU keeps this recipe for big boost and big power becoming one for a big bang.

Sutton bros nissan s15 silvia front bumper Photo 7/26   |   Sutton Bros Nissan S15 Silvia Front Bumper

It's all very well to have earth-shattering power on tap, but without the six-speed Hollinger sequential and matching driveshafts, SP Tech axles, NISMO LSD, and a combination of a Tilton triple-plate clutch and pressure plate, it wouldn't be getting very far at all.

Being set up strictly for track, the S15 is smashed toward the earth with Midori-built Aragosta three-way adjustable tampers using Eibach springs. The other main component to keep it stiffer than cadaver, but far more nimble, is a seven-point rollcage.

Sticking this sweet Silvia on the tarmac out of corners are Advan A050s, 295s all round. "We've been running them for many years and still love them more than anything as a single lap time destroyer," Wayne says. "We will continue to use them no matter what for this reason. As for the wheels, well Rays is time attack!"

The other key point of stickiness—the way in to corners—wasn't easy to get right. Wayne says getting the twin master cylinders to play nice with the big Endless brakes "sure is a learning curve."

Sutton bros nissan s15 silvia volk racing re30 wheels Photo 11/26   |   GT-inspired fenders allow for the monstrous 18x11" RE30s and 295-series tires to fit and grip all around.

The next step in the ever-more-impressive time attack package is the body kit. Designed by the brothers themselves, you can see the entire body is custom-molded. Everything is designed to the tiniest detail for better aerodynamics and airflow, for example the widened front bumper that features an enormous center air intake for improved cooling. A carbon front splitter and canards also weren't overlooked, adding to the aero improvements. While the GT-inspired fenders allow more tire for all four corners, there are also vents and carbon trim to aid flow. The rear is by far the most extravagant part of the equation with a massive rear diffuser, Voltex carbon wing, and articulated vents to help reduce drag. Other details include the carbon flat undertray and carbon doors, trunk, and hood.

Sutton bros nissan s15 silvia bride zeta iii race seat Photo 12/26   |   Runnin' through six gears with my woes.

"Every aspect of the car's tuning has its own particular reason why it is that little bit tricky," Wayne says. "And at the completion of it, you can sit there and think, 'I really should have gone about that in another way.' But that is some of the enjoyment, knowing you can do better, push harder, and go faster."

On the Attack

Sutton bros nissan s15 silvia custom aero Photo 13/26   |   Sutton Bros Nissan S15 Silvia Custom Aero

The Sutton Brothers' Nissan Silvia S15 is one of the real stars of the World Time Attack Challenge held in Australia. Built by Andrew and Wayne Sutton, the car has been created purely as a track weapon but has the looks you'd expect to see on the show floor at events like SEMA. Having made the jump from open class to the recently added Pro Am, the Suttons can do what they do best without having to bow to heavily regulated class rules. With Pro Am allowing the same freedoms as Pro class, the privateers can now try to milk as much power as possible from the S15-and the sky appears to the be the limit.

Sutton bros nissan s15 silvia team sutton Photo 20/26   |   Sutton Bros Nissan S15 Silvia Team Sutton

Glory

Sutton bros nissan s15 silvia wayne andrew sutton Photo 21/26   |   Sutton Bros Nissan S15 Silvia Wayne Andrew Sutton

WTAC '13 Pro Am 2nd place
WTAC '13 Pro Am 1st place RWD
WTAC '14 Pro Am 2nd place
WTAC '14 Pro Am 1st place RWD

Sutton bros nissan s15 silvia radiator duct Photo 22/26   |   Sutton Bros Nissan S15 Silvia Radiator Duct
Sutton bros nissan s15 silvia precision 6466 cea turbocharger Photo 26/26   |   Sutton Bros Nissan S15 Silvia 6466 Cea Turbocharger
By Matt Greenop
11 Articles
Sutton Brothers Build Nissan S15 Silvia for WTAC
Tuning Menu
Owners: Andrew and Wayne Sutton
Hometown: Woolooware, Sydney, Australia
Occupation: Electricians
Power: 727 hp
Engine: Nissan SR22DET (stroked); JUN 2.2L crank; JUN Cosworth conrods, pistons; JUN Custom camshafts; Nismo N2 heads; Kelford Cams' 1mm oversize valves; Nissan GTiR lifters and rocker arms; Precision 6466 CEA turbocharger; HKS GT intercooler; Blitz BOV; Hypertune intercooler piping, throttle body, intake plenum, runners, fuel tank; Weldon inline fuel pump, primary and secondary fuel filters; Bosch 2,200cc fuel injectors; Sard fuel pressure regulator; 6 boost headers; 90mm titanium exhaust piping; 45mm dual TurboSmart wastegates
Drivetrain: Hollinger RD6S gearbox with 3.9 final drive; strengthened driveshafts; SP Tech axles; ACPT carbon-fiber tailshaft; NISMO carbon-fiber GT limited-slip differential; Tilton triple-plate clutch; custom aluminum flywheel
Engine Management: Autronic SM4
Footwork & Chassis: Midori-built Aragosta three-way adjustable dampers; Eibach springs; custom blade-type sway bars; MJ Custom's rear crossmember; Ikeya Formula full custom arm set; solid bushes; ARC strut brace; rollcage
Brakes: 335mm front, 324mm rear Endless two-piece rotors with six-piston front, four-piston rear calipers; twin master cylinders
Wheels & Tires: 18x11" Volk Racing RE30 wheels; 295/35R18 Yokohama Advan A050 tires
Exterior: custom aerodynamics by Sutton Bros and Voltex Japan; First Molding carbon-fiber hood; Craftsquare carbon-fiber mirrors
Interior: Racepak IQ3 gauges; Bride Zeta III race seats
Thanks You: our father Neil and friend Ray; Hypertune; Voltex; Endless; Advan; Unigroup Engineering; Envirage Engineering; Turbosmart; Emtron Australia; Ian Baker and all the staff that contribute to WTAC

BROWSE CARS BY MARKET

MORE FEATURES

JDM Yard is a world-renowned tuner based in Sydney, Australia who specializes in one thing: very fast Hondas.
Sam DuApr 29, 2017
Ferrari released a Spider variant of its 488 GTB back in 2015, but it’s still missing one very important model
Michael CantuApr 28, 2017
We present to you four members of a group of grassroots enthusiasts who are literally just like you and me.
RodrezApr 28, 2017
Audi gave a sneak peek at the upcoming summer movie Alien: Covenant, featuring the Audi Lunar Quattro.
Ed TahaneyApr 28, 2017
Building a car that the S-chassis community won't be forgetting about anytime soon.
Jofel TolosaApr 28, 2017
Sponsored Links

SEARCH ARTICLES BY MAKE/MODEL

Search
CLOSE X
BUYER'S GUIDE
SEE THE ALL NEW
NEWS, REVIEWS & SPECS
TO TOP