rrobello

here are a few comparisons of real numbers with mods listed on 3 different cars, 3 different SCs; KB 2.4, 2.6 HO, and Whipple 2.3 HO:

here it is Don W's car only 452rwhp on 12lbs of boost and tons of mods (BTW He is running the KB 2.4 not the 2.6):

4.6 Liter 3-Valve V8, 5R55S Automatic Transmission
Dark Charcoal Leather, Interior Upgrade Package, Side Airbags
452 rwhp / 522 rwtq

Best 1/8-mi ET: 7.155 @ 95.33
Best 1/4-mi ET: 11.47 @ 114.97


LIST OF MODS

ENGINE
Kenne Bell 2.4L Supercharger
Kenne Bell 8-Rib Pulley Set-up with 3” Upper Pulley, 12psi
Ford Teksid Aluminum Block, bored 0.020" over
Ford Cobra 8-Bolt Forged Crank
Scat 4340 H-Beam Forged Rods, w/ARP 2000 Bolts
JE Custom Forged Coated Pistons
ARP Head Studs
Autolite HT0 Spark Plugs
Moroso Aluminum 7-Qt Oil Pan
Ford Triton V-10 Flexplate
Meziere Electric Water Pump
DiabloSport MAFia
Powdercoated Cam Covers
Optima Yellow Top Battery
Engine Built/Tuned by S.T. Motorsports, San Bernardino
Machine Work-Dougan’s Race Machine

HEADS
Livernois Stage 2 Ported & Polished
Livernois Performance Valve Springs
Manley Inconel Valves, +1mm

TRANSMISSION
5R55S Street/Strip Rebuild, with 3000rpm Torque Converter

FUEL SYSTEM
39# Fuel Injectors
Kenne Bell Boost-a-Pump

EXHAUST
Dynatech SS Long Tube Headers, 1-3/4” w/Jet-Hot Coating
Dynatech X-Pipe
Exhaust Cutouts, with Electric Valves
Magnaflow Axle-Back Mufflers

REAR END
FRPP 4.10 Gears, 8.8”
Detroit TrueTrac Differential
Powerhouse Aluminum Driveshaft
BMR Driveshaft Loop
Moser 31-spline Axles, 3” Studs
Moser Rear End Girdle

SUSPENSION
BMR Tubular K-member
BMR Radiator Support/Sway Bar Delete
BMR Adjustable Lower Control Arms
BMR Adjustable Panhard Rod
BMR Panhard Relocation Bracket
BMR Adjustable Upper Control Arm
Spohn Rear UCA Housing Bushing Kit
Strange Adjustable Rear Shocks

BRAKES
Dual Line Lock Solenoids
PowerSlot Front Rotors
Hawk HPS Brake Pads, Front & Rear

TIRES/WHEELS
Street:
17 x 9 Chrome Bullitt Wheels
Nitto 450 255/50-17, Front
Nitto 450 275/50-17, Rear

Track:
Weld Draglite XP, 15x9, 5.5bs
Mickey Thompson ET Drag slicks, 28x10.50-15
Weld Draglite, 15x3.5 - 1.75bs
Mickey Thompson ET Front Tires, 26x4.50-15

EXTERIOR
CDC Shaker Scoop (modified)
CDC Classic Chin Spoiler
Chase Taillights
Window Tint, 5%
Redline Hood Struts

INTERIOR
Autometer Nexus Controller Module
Autometer Nexus Boost/Vac Gauge
Autometer Nexus Water Temp Gauge
Autometer Nexus Fuel Pressure Gauge
AEM Wideband Air/Fuel Ratio Gauge
SOS 2-Gauge Pillar Pod
Custom Center Vent Panel Gauge Pod
Fan, Line Lock & Cutout Switches
Dash Kit

Here is another car (I believe its NOLAGTs) running the Whipple HO 2.3 on only 10lbs and a lot less mods getting 465rwhp:

2006 GT Coupe Manual BLACK on BLACK WHIPPLED @ 10psi 465/449

PERFORMANCE: WHIPPLE 10psi * Brenspeed O/R H * FRPP AND SOMETIMES SLP LM'S Exhaust, Coated 4.10's

SUSPENSION: BMR: LCA w/ Relocation Brackets, Adj Panhard w/relocation bracket * Eibach: Pro Kit, Sway bars * Tokiko D spec's

APPEARANCE: 18x9 Chrome Bullitts * Toyo 275/40 T1R * Llumar HP 5% tint * CDC Ducktial w high mount brake light kit * Steeda Cowl Hood * Clear corner's with stealth bulbs * SS Center Fog Grill

and from this thread S197 GT's car which seems to be fairly equivalent to that of the car with the Whipple as far as mods, only 8lbs but lower rwhp of 423.8 and 394.0 RWTQ, so it appears as though the 2 kits (whipple 2.3 and KB 2.6) seem to be pretty equal:

PERFORMANCE: Kenne Bell 2.6L Intercooled Supercharger w/ 8psi tuned by ST Motorsports via Xcal 2 | Hurst Short Shifter | Pypes O/R H Pipe | FRPP/Borla Stingers | FRPP 4.10's | 255/45/18 & 285/40/18 BFG G-Force T/A KDW NT's
COSMETIC: BDD Bullitts 18x9/18x10 | Flamed Grill Pony | Flamed Pony Package Emblems | Flamed Rear Emblem | Redline Goods Shift Boot, E Brake Boot, and Armrest Cover | Hurst Equipped Dash Emblem | Red Ford Racing Floor Mats | Red Door Sill Letters | Steeda Brushed Aluminum Radiator Cover, Fuse Box Cover, Oil Cap, Radiator Cap, and Power Steering Cap Covers | MRT Hood Struts | 10" Charcoal Metallic Shelby Strips (Awaiting Install)

Stang281

Kenne Bell, I love the way they sound.

The Whipple is nice too though, tough choice.