Last update: July 2008 2008 Setup ENGINE Engine Code : F20B block / H22A4 head Bore x Stroke : 87mm x 88mm Block Modifications : 9:1 CP pistons, Crower rods (145mm), Benson sleeves, Balancing shafts removed, balanced and micropolished stock f20b crankshaft, f20b crank pulley, OEM main and rod bearings, OEM oil pump, h23 manual tensioner assembly Head Modifications : Crower 1mm oversize valves, Crower springs and retainers, F20B (a.k.a. Type S) camshafts - Adv. dur. 306°/310° Dur @ 0.050 230°/230° Lift(mm) 11.91/11.12 , custom combustion chamber and head porting External Modifications : H22a4 intake manifold with butterflies removed + Spacer Added, Infinity Q45 85mm throttle body, 1600cc/min RC Injectors, OEM Resistor Box, Holley 255lph in-tank fuel pump, Bosch 044 in-line fuel pump, -10AN feed from in-line pump to rail, MSD Digital-6 plus ignition, MSD HVC-2 (blue) coil, NGK wires + NGK 9 plugs, AEM fuel pressure regulator and fuel rail, 4" mandrel dp and exhaust system, Guyon Racing twinpass Aluminum radiator, Optima battery Turbo system : Custom equal length ramhorn-style turbo manifold, Borg Warner S372 1.10AR turbocharger, Apexi GTR intercooler, Greddy TypeR blowoff valve, Turbosmart 50mm Power-Gate Wastegate Engine Management : Hondata s300 with boost control Horsepower : 780whp @ 32psi on C16 race fuel. 489whp @ 15psi on 91 octane pump fuel Torque : 460ft/lbs @ 32psi on C16 race fuel. 355ft/lbs @ 15psi on 91 octane pump fuel DRIVETRAIN Layout : Front engine, FWD Transmission Code : U2Q7 (European Accord Type R) Gear Ratios : 1st-3.285 2nd-2.090 3rd-1.481 4th-1.071 5th-0.870 FD-4.266 Drivetrain Modifications : Competition Clutch Twin-Disk clutch and flywheel, Quaife LSD, Axle System axles (300m) SUSPENSION Front : K-sport custom coilovers (16 kg/mm spring rate) Rear : K-sport custom coilovers (14 kg/mm spring rate) BRAKES Front : 4th gen VTEC Powerslot slotted rotors, Acura Legend twin-piston calipers, Hawk pads Rear : Powerslot slotted rotors, OEM rear calipers, Hawk pads EXTERNAL Wheels : Volk CE-28N, Front (17x7.5, +40mm offset), Rear (17x8.5, +40 offset) Tires : BFG Drag Radials 225.45.17 (front), Kumho Ecsta Supra 235.40.17 (rear) Body kit : Hiro front lip and sideskirts, Custom VIS rear bumper, IS300 rear taillight conversion, VIS carbon-fiber hood, JDM 1-piece headlights, SPA design sidemirrors INTERIOR Instrumentation : JDM electroluminescent cluster, FJ0 wideband lambdameter, autometer gauges (boost, EGT, water temp, fuel pres, oil pres, oil temp), Blitz turbo timer Other interior : Sparco REV seat, OMP steering wheel with Guyon Racing quick release, Sparco pedals, Momo shift knob, SPI harness, Custom aluminum dash panels and center console, Wink rear view mirror, alarm and pager system PERFORMANCE Acceleration 0-60mph : n/a 1320 : n/a Time Slip : n/a Dyno plot : Click here Old 500whp Dyno video : Click here     1992 HONDA PRELUDE (2006 setup) ENGINE Engine Code : F20B block / H22A4 head Bore x Stroke : 87mm x 88mm Block Modifications : 9:1 CP pistons, Crower rods (145mm), Benson sleeves, Balancing shafts removed, balanced and micropolished stock f20b crankshaft, f20b crank pulley, OEM main and rod bearings, OEM oil pump, h23 manual tensioner assembly Head Modifications : Crower 1mm oversize valves, Crower springs and retainers, H22A4 camshafts, custom combustion chamber and head porting External Modifications : H22a4 intake manifold with butterflies removed, Infinity Q45 85mm throttle body, 1000cc/min RC Injectors, Holley 255lph in-tank fuel pump, MSD Digital-6 ignition, MSD HVC coil, MSD 8mm wires, AEM fuel pressure regulator and fuel rail, Custom 4" mandrel dp and exhaust system, Guyon Racing twinpass Aluminum radiator, Optima battery Turbo system : Custom equal length turbo manifold, Turbonetics 62-1 turbocharger, Apexi GTR intercooler, Greddy TypeR blowoff valve, Turbonetics Racegate Wastegate Engine Management : Hondata s200 Horsepower : 401.4 whp at 7700rpm (12psi on 94 octane pump) Torque : 307.5 ft/lbs at 5750rpm (12psi on 94 octane pump) DRIVETRAIN Layout : Front engine, FWD Transmission Code : M2F4 (USDM 4th Gen) Gear Ratios : 1st-3.307 2nd-1.950 3rd-1.360 4th-1.071 5th-0.870 FD-4.266 Drivetrain Modifications : Competition Clutch Twin-Disk clutch and flywheel, stock diff (for now), Axle System axles (300m) SUSPENSION Front : K-sport custom coilovers (16 kg/mm spring rate) Rear : K-sport custom coilovers (14 kg/mm spring rate), Upper strut tower brace BRAKES Front : 4th gen VTEC Powerslot slotted rotors, Acura Legend twin-piston calipers, Hawk pads Rear : Powerslot slotted rotors, OEM rear calipers, Hawk pads EXTERNAL Wheels : Volk CE-28N, Front (17x8.5, +40 offset), Rear (17x7.5, +40mm offset) Tires : Kumho Ecsta Supra, Front 235.40.17, Rear 215.45.17 Body kit : Hiro front lip and sideskirts, Custom VIS rear bumper, IS300 rear taillight conversion, VIS carbon-fiber hood, JDM 1-piece headlights, SPA design sidemirrors INTERIOR Instrumentation : JDM electroluminescent cluster, FJ0 wideband lambdameter, autometer gauges (boost, EGT, water temp, fuel pres, oil pres, oil temp), Apexi AVCR boost controller, Blitz turbo timer Other interior : Sparco REV seat, OMP steering wheel with Guyon Racing quick release, Sparco pedals, Momo shift knob, SPI harness, Custom aluminum dash panels and center console, Wink rear view mirror, alarm and pager system, Alpine stereo PERFORMANCE Acceleration 0-60mph : n/a 1320 :~120-125mph in quarter mile on pump...hoping for 140-150 on C16 Time Slip : n/a Dyno plot : Click here. Blue plot - f20b cams, Red plot - h22a stock cams Dyno video : Click here     Photo Gallery Previous 2000-2001 setup ENGINE Engine Code : H23A1 block and head Bore x Stroke : 88mm x 95mm Block Modifications : 9:1 JE pistons, Saenz rods, JG iron ductile sleeves, Balancing shafts removed, balanced and micropolished stock h23 crankshaft, OEM main and rod bearings, OEM oil pump Head Modifications : 1mm oversize valves, Stock h23 valve springs and retainers, custom regrind h23a camshafts, custom combustion chamber and head porting External Modifications : H23a intake manifold with butterflies removed, JG spec h23 throttlebody, 720cc/min RC Injectors, Holley 255lph in-tank fuel pump, MSD 6AL ignition, MSD HVC coil, MSD 8mm wires, AEM fuel pressure regulator and fuel rail, Custom 3" stainless mandrel dp and exhaust system, Guyon Racing twinpass Aluminum radiator Turbo system : Custom turbo manifold, Turbonetics t3/t04e super60 turbocharger, Apexi GTR intercooler, Greddy TypeR blowoff valve, Turbonetics Racegate Wastegate Engine Management : Hondata stage 4b Horsepower : 491whp @ 7000rpm @ 22lbs of boost (Mustang MD250 Chassis Dyno) Torque : 401.4 gt/lbs @ 5900rpm DRIVETRAIN Layout : Front engine, FWD Transmission Code : M2S4 (h23 tranny) Gear Ratios : 1st-3.307 2nd-1.857 3rd-1.320 4th-1.034 5th-0.812 FD-4.266 Drivetrain Modifications : ACT 6-puck clutch with OEM flywheel, F20B LSD, Stock axles SUSPENSION Front : Skunk2 coilovers with KYB AGX shocks, Front upper strut tower brace Rear : Skunk2 coilovers with KYB AGX shocks, Rear upper strut tower brace BRAKES Front : Powerslot slotted rotors, OEM front calipers, Hawk pads Rear : Powerslot slotted rotors, OEM rear calipers, Hawk pads EXTERNAL Wheels : Drag DR4, 18x7.5 Tires : Kumho Ecsta Supra, Front 225.45.18 Body kit : Hiro front lip, VIS Invader II sideskirts, Custom VIS rear bumper, IS300 rear taillight conversion, JDM 1-piece headlights, HID headlights PERFORMANCE Acceleration 1320 : 12.490 @ 112.05mph @ 4000feet (on MT 22x8" slicks) Time Slip : Click here Dyno plot : Click here     Photo Gallery copyright © 2001-2006 PreludeRacing.com all rights reserved. reproduction without permission is prohibited. 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