Recently we reintroduced our resident '01 Mustang GT-Project Icebox. The 8-year-old Two-Valve project car has seen many changes since its introduction, and has brought you the latest and best in Two-Valve technology. Last month, Blow-By Racing assembled an aluminum short-block with forged internals for the project. This month, we introduce the top-end components chosen for the build.
The focal point and key component of the new powerplant for Icebox is a 1.9L blower from Tork Tech. The twin-vortices series (TVS) is a positive-displacement supercharger, making it more effective at lower rpm than a centrifugal equivalent. "The benefit of positive displacement superchargers is the capability of low- to mid-range torque," said Charles Warner, president of Tork Tech and designer of this kit. The Tork Tech TVS promotes low-end power and torque by reaching full boost by about 1,700 rpm, thus reducing lag associated with centrifugal superchargers, according to Warner.
The Tork Tech TVS1900 supercharger kit (PN M46TVS1900) retails for $5,399. It comes with the TVS1900 supercharger; lower intake manifold with cooler; intake plenum with EGR adapter for the stock EGR tube; single-blade throttle body with linkage; intake tube; 8-rib independent-pulley drive system; front-mount heavy-duty heat exchanger with electric water pump, expansion tank, and hoses; and all hardware, fasteners, and hose clamps required for installation.
To complement the supercharger, we turned to Summit Racing for a pair of Trick Flow Specialties (TFS) heads, a pair of TFS cams to match, and everything else needed to assemble the top end. The TFS Twisted Wedge Track Heat 185 cylinder heads are available with either a 38cc (PN TFS-51910003-M38) or a 44cc (PN TFS-51900004-M44) chamber, and retail for $1,050.95 each. They include 185cc intake runners, 1.84-inch intake valves, 1.45-inch exhaust valves, and can handle up to 0.580-inch of lift.
Shown here with the heat exchanger,...
Shown here with the heat exchanger, supercharger, and intake with cooler are the standard 9-inch crank pulley, as well as the optional 10- and 11-inch crank pulleys.
The TFS camshafts feature 234/234 (intake/exhaust) degrees of duration, with 0.580-inch lift, and a lobe separation of 114 degrees. This profile is commonly called a "Stage 2" camshaft because it is the intermediate Two-Valve cam profile by Trick Flow. Because of its large lobe separation, this camshaft is a typical choice for supercharged applications, and should work well with our Tork Tech TVS. They retail for $479.95.
Summit Racing also sent us a set of TFS hydraulic lash adjusters (PN TFS-21400008-16, $149.95), a set of 16 TFS cam followers (PN TFS51800510, $14.95 each), a complete TFS timing chain set (PN 51800500, $329.95), a pair of TFS valve covers (PN TFS-51800802, $189.95), an FRPP head changing kit (PN FMS-M-6067-D46, $114.75), and a set of ARP head studs (PN ARP-156-4101, $241.64) to complete the job.
The kit comes with an aluminum...
The kit comes with an aluminum finish;....
Next month, we'll be back at Blow-By Racing to assemble the new powerplant. We'll make sure our fuel system is sufficient, check the transmission and clutch, and install the new engine.
As always, we'll run it on the chassis dyno and take it to the dragstrip. Check back to see just how much power we can make with this potent Two-Valve.
....the polished version that...
....the polished version that we're using is a $799 upgrade.
A single-blade throttle body...
A single-blade throttle body comes standard, but we opted for the large oval....
....throttle body, which is...
....throttle body, which is 20 percent larger and costs $100 more.
The cast-aluminum intake plenum...
The cast-aluminum intake plenum (top) splits the airflow into two equal parts....
....before it enters the back...
....before it enters the back of the supercharger (below).
We opted for Trick Flow Specialties...
We opted for Trick Flow Specialties Twisted Wedge Track Heat 185 cylinder heads with 44cc combustion chambers.
Though the 8-rib pulley system...
Though the 8-rib pulley system is standard, Tork Tech offers a 10-rib upgrade for $200. Whether you opt for the 8- or 10-rib, both use an independent belt drive system. This design makes pulley changes easier, because the crank pulley simply bolts to the harmonic balancer.
Previous designs of positive-displacement...
Previous designs of positive-displacement superchargers utilized two- or three-lobe rotors to pump air into the engine. TVS superchargers feature four-lobe rotors that feature 160 degrees of helix, or twist. This allows for larger-diameter rotors and smoothes out airflow.
The intake runner is designed...
The intake runner is designed to make a sweeping turn, promoting smoother airflow.
The tfs heads are equipped...
The tfs heads are equipped with four-bolt replaceable cam journals.
The valvesprings support up...
The valvesprings support up to 0.580-inch lift, and come complete with chrome-moly steel retainers. The outside diameter of the intake valve springs is 0.940 inch and the exhaust valve springs are 1.050 inch.
Both intake and exhaust valves...
Both intake and exhaust valves utilize....
....powdered-metal guides...
....powdered-metal guides and ductile-iron seats.
The TFS heads feature 44cc...
The TFS heads feature 44cc CNC-ported combustion chambers, 1.84-inch intake valves, and 1.45-inch exhaust valves.
Since the lower intake takes...
Since the lower intake takes up so much space in the valley, machining may be needed for the Tork Tech kit to fit.....
.....We sent the lower intake...
.....We sent the lower intake to Trick Flow to make some modifications to the heads that we are going to use. Similar minor modifications must me made to stock heads.