How far can I tune an Aristo V300?

- Aristo V300 can run 10.9s on 1/4 mile at 800bhp+

- Aristo V300 can handle up to 800bhp without engine re-build

- Aristo V300 is capable of race car handling with the wide variety of coil over setups available

- Aristo V300 can be tuned to a maximum horsepower of 1400bhp with full engine rebuild.

Examples :



510 bhp, 3.1L JUN bottom end, 198MPH top speed


1400 rwhp 2JZ-GTE engine, 1/4 mile/400M - 7.35 @ 185mph




Engine Modifications

Boost Controller (Blitz) - increase power 40/50bhp from stock Aristo 2JZ-GTE motor. RECOMMENDED!

Iridium spark plugs - essential when increasing boost levels e.g.with boost controller.

Dump valve - replaces re-circulation dump valve as stock on car - keeps turbo spinning longer and pro-longs turbo life.

Induction Kit (Blitz) - increase top speed on stock motor by 3-4mph on 1.4 mile. Makes much better engine noise.

Foglight removal (DIY) - increase airflow to intercooler, reduce turbo lag.

Fuel controller - increase fuelling as bhp/power is increased. As boost is increased, air-flow and fuel must be increased also.

Intercooler - uprated intercooler is ESSENTIAL when upgrading to larger turbo. Both must be done at the same time for large (500hp+) turbo. Otherwise the turbo will die.

Turbo Upgrade - Upgrades available in turbo kit form to 1000hp. When upgrading the turbo, increased fuelling (fuel pump, fuel rail, injectors) must be installed also. For very large turbo 500hp+ you will need an uprated intercooler and new front bodykit.

Camshafts - Uprated cams are essential when tuning to 600hp+. They give a small bhp increase on paper, but make a massive difference in the power delivery when combined with large turbo.

Head gasket - under high boost/ high HP conditions, it may be wise to change to an uprated head gasket. If changing cams, this would be a definite item to change at the same time as there would be no additional labour involved.

Forged pistons - only required for major hp applications 800hp+. Will give greater engine tolerances and reduces risk of blowing at high hp.

Oil cooler - for track use, an ideal item to fit to pro-long engine life. Also, allow the car to stay out on the racing circuit longer. Can be positioned behind headlight or in place of foglights.

Transmission cooler - for track use, an ideal item to fit to pro-long gearbox life. Also, allow the car to stay out on the racing circuit longer. Can be positioned behind headlight or in place of foglights.

Recommended tuning setups for Aristo V300 2JZ-GTE engine :

350hp - MINES ecu set to 1.0bar or Blitz boost controller 50% over-boost, 1.0bar before fuel cut. Iridium spark plugs / Blitz induction kit.

400hp - HKS Turbo GT2835R, uprated injectors, uprated fuel pump. Boost set to 1.2 bar.

550hp - HKS Turbo T04S, uprated injectors, larger intercooler, uprated fuel pump. Boost set to 1.4 bar.

700-800hp - HKS Turbo T04Z, HKS cams, uprated head gasket, uprated injectors, larger intercooler, 2xuprated fuel pump. Boost set to 1.6 bar.

1000hp - HKS Turbo T51R, HKS forged pistons, HKS cams, larger intercooler, uprated head gasket, uprated injectors, 3xuprated fuel pump. Boost set to 2.0 bar.


Brakes

Uprated rotors/discs - big difference in braking, recommend Black Diamond FRONT grooved or drilled & grooved (for better cooling).

Steel braided lines - reduces 'swelling' that will occur on rubber brake lines during track use. Increases firmness to pedal.

Uprated brake pad - recommend Black Diamond Predator for road use or Project-mu 777/ 999 for track use.

Castrol SRF 4.1 fluid - reduces brake fade to zero. Amazing stuff! 3 litres for Aristo.

Brake kit - AP racing 4pot or 6pot. Also Supra 4-pots but when upgrading to 4/6 pot kit, you will require new rims with Supra off-set such as Blitz wheels. Stock Lexus wheels do not fit 4 or 6 pot calipers!



Suspension / Handling

Eibach lowering springs - increases handling without sacrificing ride quality. Cheap option.

Strut Brace (engine/trunk) - increase stiffness and cornering ability.

TRD polyeurthane bushes - increases handling and sharpness in steering. Recommended for vehicles 5+ years old as the bushes will need replaced anyway.

Anti-roll bars / sway bar / stabiliser - reduces body-roll therefore increases cornering and reduces tyre 'scrub' on edges.

Adjustable coil-overs - increases handling and stiffness. Recommended are Tein and HKS. Ride quality reduced as the coil-over is made stiffer. Most coil-overs have height and damping/stiffness adjustment.

LSD - Limited slip diff, will allow harder & faster acceleration out of corners. Rather than 1 wheel spinning, the LSD channels power to both wheels thus distributing power evenly = traction out of the corner. This is a weak point of the Aristo which should be tuned with uprated LSD such as Cusco.

LSD 1.0 - effects ACCELERATION only
LSD 1.5 - effects ACCELERATION and slightly on DECELERATION
LSD 2.0 - effects ACCELERATION and DECELERATION.

The LSD in 1.0/1.5 mode is quite easily driveable but the 2.0 mode requires you brake in straight line for driveability.

Recommended for Aristo - Cusco LSD 1.0/2.0 Clutch type.

Tyres

Goodyear Eagle F1 - ultimate tyre for the Aristo in the wet or dry. Unforunately, the tyre-wall is weak so no use for track days.

Kumho track day tyre - 4MM of tread in medium compound, good dry use tyre. Haven't tried these as yet but good reports on this tyre.

Michelin Slick Tyres - increase cornering in on dry track. Reduces lap times by 4 seconds on stock Aristo V300

Dunlop Slick Tyres - not tried these yet, but they are medium compound and I expect 4 seconds reduced lap time similar to Michelin slick tyre.

Electronics

ECU upgrade - choose from Blitz, TOMS Tec II, MINES ecus for Aristo. Removes boost limit (more boost, more hp), fuel cut and speed limiter. Also allows rev range to 8000rpm. Boost and fuel maps have to be programmed by laptop. ECU in engine bay, very easy install.

Boost Controller (Blitz) - increase power 40/50bhp from stock Aristo 2JZ-GTE motor. RECOMMENDED! Records peak boost and works as a digital boost gauge also.

Fuel controller - increase fuelling as bhp/power is increased. As boost is increased, air-flow and fuel must be increased also.

VSC off switch - VSC can interfere during track/circuit driving and reduce power. Turn it off with this switch, plugs into stock ECU (easy install) + on/off button.

Turbo timer - leaves engine running for 2 minutes after you exit vehicle to cool turbo down and pro-long turbo life.

G-Force computer upgrade - allows G-Force created thru cornering to be read from touch screen

Air-fuel ratio meter - checks to see if you are under-fueling under full load. Under-fueling will mean blown turbo/engine so is very important when tuning your vehicle for higher boost.