Technical Research Archive V8 Supercars
Cars / Gen II / Altima Mk. II
Nissan · Gen II

Altima Mk. II

2017-2019 · 27/41 specifications catalogued

The Nissan Altima (Gen2) was the Mk. II evolution of Kelly Racing / Nissan Motorsport's factory Altima, raced from 2017 to 2019 on the category's second-generation platform. It carried on from the Car-of-the-Future Altima (Mk. I & II) and was Nissan's last works car in the championship, running alongside the Gen II ZB Commodore and Mustang.

Gen2 — the same chassis, freer rules

The 2017 Gen2 regulations kept the Car-of-the-Future control chassis underneath — the common safety cell on its 2822 mm wheelbase, independent rear suspension, a rear-mounted transaxle (Albins, then the Xtrac P1293 control unit from 2019), the AP Racing control brakes behind 18-inch control wheels, E85 control fuel and the single-make Dunlop tyre — but opened up what could sit in it, broadening the engine and body/aero rules to let new shapes and powertrains into the category. For the Altima that meant a continuation of its distinctive Nissan running gear rather than a wholesale change.

The Nissan V8

The Altima's engine remained its signature. Built in-house by Kelly Racing / Nissan Motorsport at Braeside with NISMO support, it was a VK56DE — the all-aluminium DOHC, 32-valve quad-cam V8 from the Australian-market Patrol — destroked from 5.6 to the ~5.0-litre control displacement, dry-sumped and revving to the regulated 7500 rpm. It was the only quad-cam engine among the makes in the modern era, and unlike the customer-engine arrangements common elsewhere it was developed and assembled by the team itself.

Body & aero

The race car wore the four-door Altima silhouette on the Gen2 aero platform. Its place in the era's technical story is a specific one: in the 2019 aero-parity dispute the Altima was the reference car — after straight-line testing the Mustang and Commodore were ordered to shift their centres of gravity to match it (March 2019). The 2019 rules also banned twin-spring dampers (reverting the field to a single linear spring) and ran three homologated damper makes — Öhlins, Sachs and Supashock — that teams were still free to valve. As with all control-era cars the aero sat inside a common downforce and drag target set by the rules, so no per-car aero figures are published here.

Run-out

The Kelly brothers' programme carried Nissan's factory backing through the Gen2 years, but the manufacturer wound down its support at the end of 2019; the team continued into 2020 with Mustangs, closing Nissan's chapter in the championship.

Sources: Gen2 control-formula and control-parts records (transaxle, brakes, wheels, damper rules) — Grade C; Nissan VK56-derived engine base — Grade C/D. The 5.6-litre figure is the road VK56; the race unit was destroked to the ~5.0-litre control formula. For its championship record see the 2017, 2018 and 2019 seasons.

Technical specification

Grouped by system. Every value carries its confidence grade and source.

confirmedperiod-verifiedbridge refunknownquarantined

Category 1/2

Formula designation
Supercar (Gen2) period-verified
Category formula designation (era-based)
Series & administration
unknown

Engine 7/8

Displacement
5.0 L period-verified
5.0L V8 formula carried into the Car of the Future
Configuration
90-degree V8 period-verified
V8 Supercars Gen I era notes + V8SA Car-of-the-Future control-component tenders (harvested)
Induction
Fuel injected; custom billet alloy individual throttle bodies (VK56-derived DOHC alloy V8) period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Re-sleeved Nissan VK56 destroked 5.6->5.0 L; engine spec stable across Altima life.
Power (est.)
646 hp @ 7300 rpm period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Torque ~450 lb-ft.
Max engine speed
unknown
Compression ratio
10.0:1 period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Engine spec stable across the Altima's life (2013-2019).
Engine management
MoTeC period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Homologating team = Kelly Racing.
Engine block
Re-sleeved Nissan VK56, de-stroked 5.6->5.0 L; custom cast alloy DOHC heads, Mahle pistons, Carrillo rods, dry-sump (Dailey Engineering oil pump) period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) | Nissan Motorsport / Kelly Racing history (Grade C/D) · Engine built in-house by Kelly Racing / Nissan Motorsport (Braeside), a NISMO-derived VK56DE destroked 5.6->5.0L.

Drivetrain 2/4

Gearbox
Rear-mounted Xtrac 6-speed sequential (Supercars control transaxle) period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Rear transaxle layout retained from COTF.
Gear ratios
unknown
Final-drive options
unknown
Differential
Spool differential integrated into the transaxle (Supercars control) period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback)

Suspension 3/8

Front type
Kelly Racing team-developed double wishbone period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback)
Rear type
V8 Supercar control independent rear suspension (double wishbone); coil-over adjustable dampers, cockpit-adjustable anti-roll bar period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Independent double-wishbone rear — the COTF control suspension that replaced the Blueprint live rear axle (carried into Gen2). Corroborated as independent rear suspension by Racecar Engineering (Apr 2019): a Triple Eight engineer states the COTF brought the shift to (controlled) independent rear suspension.
Front spring rate
unknown
Rear spring rate
unknown
Anti-roll bars
Driver-adjustable front and rear period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback)
Dampers
unknown
Front geometry
unknown
Rear geometry
unknown

Brakes 5/5

Front disc
395 mm period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback)
Rear disc
355 mm period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback)
Front caliper
AP Racing 6-piston period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Brake make varied by team.
Rear caliper
AP Racing 4-piston period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Brake make varied by team.
Brake pads
Control brake pad - three front compounds from three approved suppliers (AP Racing control caliper + iron disc) period-verified
Racecar Engineering, Apr 2019 - "Australian Supercars: Technical Insight" (David Cauchi, Triple Eight; AP Racing) - harvested PDF · Front upright/cooling not controlled, so friction interface varies by team (RCE).

Wheels & tyres 1/4

Wheel size
unknown
Tyre supplier
Dunlop control tyre period-verified
Control-tyre chronology (Dunlop through Gen I)
Tyre dimensions
unknown
Tyre construction
unknown

Weight 1/2

Minimum weight
1395 kg period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Gen2 minimum is quoted with driver, unlike the excl-driver minimums of earlier eras.
Weight distribution
unknown

Fuel 1/2

Fuel capacity
unknown
Fuel specification
E85 (CSR ethanol blend, category control fuel) period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback)

Dimensions 3/3

Wheelbase
2822 mm period-verified
whichcar.com.au "Anatomy of the ZB: Inside Holden's latest Commodore Supercar" (Gen2 technical deep-dive) · Defined control-chassis wheelbase all bodies are moulded to fit (Gen2, per the ZB deep-dive; shared with the COTF control chassis).
Front track
1913 mm (Gen2 control track) mm period-verified
whichcar.com.au - Gen3 Supercars tech deep-dive (Jan 2022; quotes T8 Jeromy Moore, DJR Perry Kapper/Ryan Story, Adrian Burgess) · Reported control-track figure; basis unspecified. Basis: this ~1913 mm is an outer / wheelface (overall) track width, NOT wheel-centre to wheel-centre - the ~1900 mm body plus tyre overhang. Wheel-centre track is ~1600 mm (ChassisSim, Blueprint car). Cf. Gen3 ~2000 mm to the wheelface.
Rear track
1913 mm (Gen2 control track) mm period-verified
whichcar.com.au - Gen3 Supercars tech deep-dive (Jan 2022; quotes T8 Jeromy Moore, DJR Perry Kapper/Ryan Story, Adrian Burgess) · Reported control-track figure; basis unspecified. Basis: this ~1913 mm is an outer / wheelface (overall) track width, NOT wheel-centre to wheel-centre - the ~1900 mm body plus tyre overhang. Wheel-centre track is ~1600 mm (ChassisSim, Blueprint car). Cf. Gen3 ~2000 mm to the wheelface.

Aerodynamics 3/3

Front aero
COTF/Gen2 control front undertray/splitter (Gen2 Altima) period-verified
Wikipedia + Supercars reporting
Rear wing
Gen2 control rear wing; the Altima was the aero reference car in the 2019 parity dispute period-verified
Supercars 2019 parity reporting
Downforce / drag map
Approx. 350 kg downforce @ 200 km/h period-verified
Kelly Racing Our Nissan V8 / Car Specs page (kellyracing.com.au, 2019; harvested Wayback) · Top speed ~300 km/h; 0-100 km/h ~3.4 s (Kelly 2019).