Overkill is underrated. But what constitutes overfill? How much is too much? How about a 2.2-liter four-cylinder engine motivated by a T4-framed 74mm turbocharger, an air-to-water intercooler with a 14-gallon tank, a billet aluminum bell housing, and enough powder coating and polishing to buy another car? All of this in a daily driver with a functional air conditioning system and full interior. If you’re going to build a car, build it to the extreme. Is it possible to overbuild a car? Some think so, but Insane Speed and its machine shop Insane Power of Las Vegas, Nevada have redefined vehicle building to the extreme with their latest creation.

Text by Richard Fong // Photos by Michael Ferrara and Arnold Eugenio


Side of the Insane Speed 4G64 EVO IVThe Multi-Tasker

Insane Speed’s Todd Allen stated, “We wanted to present an aesthetically pleasing car with massive power, a tasteful exterior and full street drivability. This exercise was a demonstration of what we’re capable of producing.” On that note, work began on a pristine EVO IX chassis. The entire shell was stripped down in preparation for a fresh coat of paint in a platinum silver hue. A C-West front bumper and a JDM EVO IX rear bumper along with a handful of carbon-fiber panels lend to a more aggressive appearance without fully giving away the fury hidden beneath its skin.

4G64 mivec for the Insane Speed 4G64 EVO IV

4G Supreme

For this build, a 4G64 block served as the foundation. Aiming for lofty horsepower objectives required a carefully selected combination of parts and displacement dimensions. Insane Power installed Darton sleeves into the 4G64 block and then bored and honed the cylinders to 86mm. The freshly-honed cylinders received a set of Insane Speed-specific JE Pistons with proprietary dish, ring design, pin placement and skirt height. GRP Pro-material connecting rods join the pistons to a 94mm Winberg stroker crankshaft. This combination yielded a new displacement of 2,184cc, an increase of 186cc or nine percent.

To complement the reinforced block, Insane Power applied its CNC head program to the EVO IX 4G63 MIVEC cylinder head to optimize airflow through the engine. The head was then filled with a complete Ferrea valvetrain lifted by GSC/Insane Speed specification prototype camshafts before it was clamped to the shortblock with ARP L19 head studs.

Insane Speed 4G64 EVO IV

Reorganization

The engine bay is the stuff of genius and madness at the same time. To clean up the appearance of the engine bay and to make space for the forced-induction system, the fluid reservoirs for coolant and washer fluid were displaced from view along with the fuse box. With the longblock dropped into place, extracting the most from the Mitsubishi mill would require a turbocharger capable of delivering the boost pressure to support four-digit horsepower levels. Precision Turbo’s PT6768 turbocharger got the nod for the job. Insane Speed fabricated a sidewinder-style manifold that offsets the turbocharger’s position to the driver’s side. This location put the compressor discharge directly in line with a custom air/water intercooler that makes the connection to the Hypertune aluminum throttle body and intake manifold. Allen proudly pointed out that this manifold permits the use of a 4-inch downpipe while retaining the air conditioning system.

Fermented Fuel

Insane Speed 4G64 EVO IVEthanol with gasoline blends continue to be the choice fuel for high-performance builds despite requiring additional fuel volume. A Bosch 044 in-tank pump supplies E85 to a custom surge tank mounted under the chassis next to the spare tire well to maintain the usable space in the trunk while keeping the ballast and center of gravity low. An in-line pump pushes fuel from the surge tank forward to the Hypertune fuel rail. The rail feeds a quartet of Injector Dynamics ID2000 injectors that atomize the fuel as it mixes with the incoming air charge.

The New Boss

Regulating 2,000 cc/min fuel injectors that are almost five times the size of the stock units requires greater tuning resolution and more flexible parameters to ensure proper and reliable engine function. Therefore, a MoTeC M800 replaced the factory ECU at the helm of engine management duties. With Sparktech’s CDI Pro14 ignition amplifier and coils sending spark energy to the plugs on command, the engine could now be tuned. Insane Speed’s Mike Angel has tuned a number of quad-digit builds. With a MoTeC M800 engine management orchestrating the extreme components assembled for this project, eclipsing the four-digit mark should be no problem once strapped to the dyno.Back of the Insane Speed 4G64 EVO IV

Sibling Rivalry: 4G63 vs. 4G64

4G64 Mivec for the Insane Speed 4G64 EVO IVInsane Speed’s extensive experience with high- powered 4G63 and 4G64 engines led to the development of proprietary engine specifications unique to Insane Speed engine builds. Compared to the smaller 4G63, the 4G64 has a taller deck height, a 12mm longer stroke and a 86.5mm (1.5mm larger) bore. Allen commented, “For this build, the 4G64 was chosen for its deck height, but it was sleeved so that the bores could be reduced to 86mm (a proven and reliable bore size in our experience.) Our piston designs, pin placements, ring design, rod ratio and stroke length are the result of many studies of engine performance on the dyno. We were focused on extracting more torque from the engine than anyone else has been able to reliably produce with 4G63 and 4G64 engines.”

Strange Bedfellows: Air and Water

Front of the Insane Speed 4G64 EVO IVForced-induction engines rely on a heat exchanger to reduce air charge temperatures. The most common is the air-to-air type, but an alternative is the air-to-water intercooler. Air-to- water intercoolers tend to be more efficient at heat exchange but add weight and complexity. These drawbacks can be summed up by the amount of water in the system (at 8.34 pounds-per-gallon), the lines, the reservoir, the water pump, ancillary wiring and support hardware. But in the case of Insane Speed’s EVO, the benefits outweigh the drawbacks. To ensure consistent performance even in the Las Vegas triple-digit summers during rush hour traffic, the air-to- water intercooler provides consistent intercooling because it does not rely on ambient air to draw heat away from the intercooler core.

Billet Bonanza

Insane Speed 4G64 EVO IVModern CAD and CNC machining techniques have made custom parts manufacturing more attainable now than ever before. Insane Power put these resources to the test, designing and cutting a transmission bell housing from a billet of aluminum. Why would one need a billet housing? When combining sticky tires with an engine producing torque at and above 700 lb- ft, Allen noted that the factory cast aluminum bell housing is acted upon by intense stress, inevitably leading to cracking and failure. The billet housing offers increased strength, rigidity and capacity to accommodate the additional torque produced by the engine combined with the resistance that improved traction.

Driveline Directive

Insane Speed 4G64 EVO IVMore power is terrific, except when it triggers a chain reaction of failures on the way to the tires. Subjecting any driveline to more than four times the factory output is a recipe for disaster, warranting upgrades to handle the increased performance. For reliable torque transfer from the crank to the transmission, a Carbonetic triple- carbon clutch with flywheel link the engine to the reinforced Sheptrans stage-5 transmission. Once the gears are turning, a Cusco LSD splits power between the front wheels as a Quaife differential in the transfer case sends power to Cusco differential at the rear of the chassis. The clutch pack-style limited-slip differentials spin Drive Shaft Shop stage-5 axles that turn XXR 521 wheels mounted with Mickey Thompson ET Street Radial II tires.

Setting A New Standard

Insane Speed has produced plenty of 1,000-plus horsepower machines of different varieties including Gallardos, 911 Turbos, GT-Rs and EVOs as well as several major developments and pet projects. While this extreme Evo project hasn’t had the chance to prove itself against foes on the street, the strip and the road course, its purposeful design and intuitive layout nearly justify the excessiveness of the set up. Or, perhaps overkill isn’t overkill afterall. It’s just right.


DSPORT MIVEC Merch 4G63 4G64


Front top of the Insane Speed 4G64 EVO IV

SPEC SHEET

VEHICLE
Year / Make / Model: 2006 Mitsubishi EVO 9
Chassis Code: CTA9
Vehicle Weight: 3,148 lbs
Weight Bias (F/R): 52/48
Launch RPM: 5,800 RPM
Shift RPM: 10,500 RPM
Fuel: E85

ENGINE
Engine Code: 4G64
Displacement (cc): 2,184cc
Bore & Stroke (mm): 86mm x 94mm
Engine Builder: Mike Angel of Insane Speed
Block Modifications: Darton Sleeved, Notched to clear Pro Rods
Machine Work: Insane Power
Pistons/Compression Ratio: JE Pistons 9.5:1 Compression, Custom Insane
Speed Dish, Ring Design and Skirt Height
Connecting Rods / Crank: GRP Insane Speed Pro Material Rods
Winberg Billet Steel Stroker Crankshaft
Camshafts: GSC Cold Forged Prototype Cams
Valves/Springs/Retainers: Ferrea Valves, Springs & Titanium Retainers
Cylinder Head Modifications: Insane Speed CNC-Cylinder Head Program
Head/Main Studs: ARP L19 Head / ARP Main
Intake Manifold/Throttle Body: Hypertune Billet Twin Rail Manifold + 90mm TB
Air Induction System: Insane Speed Cold Air Intake
Fuel Injectors: Injector Dynamics ID2000 Injectors (x8)
Fuel Delivery System: Weldon 2345A Fuel Pump w/IS Surge Tank
Engine Management System: MoTeC M800
Engine Management Tuner: Mike Angel
Boost Controller: Turbosmart e-Boost II
Ignition System: Sparktech CDI Pro14 Coil-On-Plug Ignition
Spark Plugs: NGK
Exhaust Manifold: Insane Speed Stainless-steel Offset Manifold
Exhaust System / Downpipe: Insane Speed 4-inch Stainless-steel Exhaust
Wastegate: TurboSmart 45mm Racegate
Blow-Off Valve: Dual TurboSmart Race BOV
Intercooler: Insane Speed Air/Water Intercooler
Nitrous Oxide: NOS 5 lb. Bottles (x2)
DEI Triple-Threat Solenoids (100-shot)
Cooling System: Insane Speed Custom Radiator w/Koyo Core
Oil System: Insane Speed Custom Dry Sump System

TURBOCHARGER
Turbocharger: Precision Turbo & Engine 6768
Frame: T4
Compressor Wheel Specs: 88mm Major, 67mm Inducer, Billet Aluminum
Turbine Wheel Speds: 68mm Major, 67mm Exducer
Turbine Housing: .81 A/R

CHASSIS/DRIVELINE
Springs, F&R (Make & Rate): KW Suspension Springs
Shocks, F&R (Make & Rate): KW Suspension/Insane Speed Custom Valved
Additional Suspension Components: Progress Sway Bars + End Links
Energy Suspension Bushings
Transmission: ShepTrans Stage-5 w/ full REM treatment
Insane Speed Billet Bell Housing
Transmission Gearing: EVO 8+9 Hybrid Gearing
Final Drive: HKS 4.11:1 Final Drive
Clutch / Flywheel: Carbonetic Triple Carbon Clutch w/ Flywheel
Differential(s) (Make & Type): Cusco LSD (F&R)
Quaife LSD (Center)
Axles / Driveshaft: Driveshaft Shop Stage-5 Axles & 2-piece driveshaft
Wheels (Make, Size & Offset): XXR 521 Wheels, 18×9-inch +25 (F&R)
Tires (Make & Size): Mickey Thompson ET Street II 245/40R18 (F&R)
Brake Calipers (F&R): StopTech Calipers, 6-piston (F), 2-piston (R)
Brake Rotors (Diameter, F&R): 14-inch, 13-inch
Brake Pads (Front & Rear): StopTech Pads
Brake Lines: StopTech Stainless-steel Braided Lines
Etc.: Insane Speed Tubular Front K-member

INTERIOR
Seats: EVO IX Suede Recaro Seats
Gauges: STRI Gauges
AEM Wideband UEGO

EXTERIOR
Front Bumper: C-West
Front Lip Spoiler: Custom Carbon-fiber Lip
Hood: Seibon TSII
Side Skirts: RexSpeed Carbon-fiber
Rear Bumper: JDM w/Carbon-fiber insert
Rear Diffuser: Rexspeed
Trunk Lid and Wing: Seibon Dry Carbon-fiber
Spoiler / Wing: Seibon Carbon-fiber
Mirrors: Ganador Dry Carbon-fiber
Custom Body Work: Carbon Roof, Carbon-fiber Door Handles

 

DSPORT MIVEC Merch

 

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