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Unorthodox Racing

Unorthodox Racing

Ultra S Lightened Crank Pulleys

Unorthodox Racing Ultra S Lightened Underdrive Crank Pulley

(Main component of Ultra SS kits)

  • Lightweight 6061-T6 billet aluminum
  • CNC machined to .001"
  • Real HP & torque gains across entire RPM range
  • Over 12 years of use in "real world" applications from street to road course to rally to dragstrip...
  • Better than OEM belt fitment & alignment
  • The broadest range of applications available
  • High quality POLISHED finish

ModelYearApplicationDescriptionPart Number
Acura
CL97-972.2L SOHC 16VUnderdrive stock belt layout020610402
CL98-002.3L SOHC 16VUnderdrive stock belt layout020610402
Integra GSR, LS, RS, SE94-011.8L DOHC 16VUnderdrive stock belt layout020610902
Integra GSR, LS, RS, SE94-011.8L DOHC 16VStock diameter stock belt layout020610912
MDX04-093.5L SOHC 24VUnderdrive stock belt layout020611402
RL05-083.5L SOHC 24VUnderdrive stock belt layout020611402
RL09-093.5L SOHC 24VUnderdrive stock belt layout020611402
TL04-093.2L SOHC 24VUnderdrive stock belt layout020611402
TL Type S07-093.5L SOHC 24VUnderdrive stock belt layout020611402
CL97-972.2L SOHC 16VUnderdrive stock belt layout030610402
CL98-002.3L SOHC 16VUnderdrive stock belt layout030610402
Integra GSR92-931.7L DOHC 16VUnderdrive single belt conversion030610902
Integra GS, GSR, LS, RS, SE, Type R90-011.8L DOHC 16VUnderdrive single belt conversion030610902
Chrysler
Sebring LX95-992.0L DOHC 16VUnderdrive stock belt layout020110202
PT Cruiser01-072.4L DOHC 16VUnderdrive stock belt layout020110302
PT Cruiser03-072.4L DOHC 16V TurboUnderdrive stock belt layout020110302
Dodge
Neon ACR, SE, SXT, R/T00-062.0L SOHC 16VUnderdrive stock belt layout020110302
Neon SRT-403-052.4L DOHC 16V TurboUnderdrive stock belt layout020110302
Eagle
Talon ESI95-992.0L DOHC 16V Non-TurboUnderdrive stock belt layout020110202
Talon ES90-942.0L DOHC 16V Non-TurboUnderdrive stock belt layout020910602
Talon TSI90-942.0L DOHC 16V TurboUnderdrive stock belt layout020910602
Talon TSI95-992.0L DOHC 16V TurboUnderdrive stock belt layout020910602
Honda
ZC Engine-1.6L DOHC 16V Models without power steering & 24mm crank snoutUnderdrive stock belt layout020610302
Civic CX, DX, LX, VX88-951.5L SOHC 8/16V Models without power steeringUnderdrive stock belt layout020610302
Civic EX, Si, 4WD88-951.6L SOHC 8/16VUnderdrive stock belt layout020610302
CRX HF, DX88-911.5L SOHC 8/16VUnderdrive stock belt layout020610302
CRX Si88-911.6L SOHC 8/16V Models without power steeringUnderdrive stock belt layout020610302
Del Sol S92-951.5L SOHC 8/16V Models without power steeringUnderdrive stock belt layout020610302
Del Sol Si92-951.6L SOHC 8/16V Models without power steeringUnderdrive stock belt layout020610302
Accord EX, DX, LX, SE94-972.2L SOHC 16VUnderdrive stock belt layout020610402
Accord EX, LX, SE98-022.3L SOHC 16VUnderdrive stock belt layout020610402
Prelude SH, VTEC93-012.2L DOHC 16VUnderdrive stock belt layout020610402
Civic Si99-001.6L DOHC 16VUnderdrive stock belt layout020610902
CR-V EX, LX97-012.0L DOHC 16VUnderdrive stock belt layout020610902
Del Sol VTEC95-971.6L DOHC 16VUnderdrive stock belt layout020610902
Civic Si99-001.6L DOHC 16VStock diameter stock belt layout020610912
CR-V EX, LX97-012.0L DOHC 16VStock diameter stock belt layout020610912
Del Sol VTEC95-971.6L DOHC 16VStock diameter stock belt layout020610912
Accord EX, LX03-093.0L SOHC 24VUnderdrive stock belt layout020611402
Accord EX, LX08-093.5L SOHC 24VUnderdrive stock belt layout020611402
Accord EX, DX, LX, SE94-972.2L SOHC 16VUnderdrive stock belt layout030610402
Accord EX, LX, SE98-022.3L SOHC 16VUnderdrive stock belt layout030610402
Prelude SH, VTEC93-012.2L DOHC 16VUnderdrive stock belt layout030610402
ZC Engines88-901.6L DOHC 16V Engines with 24mm diameter crank snoutUnderdrive single belt conversion030610502
Civic CX, DX, LX, VX88-951.5L SOHC 8/16VUnderdrive single belt conversion030610502
Civic EX, Si, 4WD88-951.6L SOHC 16VUnderdrive single belt conversion030610502
CRX DX, HF88-911.5L SOHC 8/16V Engines with 24mm diameter crank snoutUnderdrive single belt conversion030610502
CRX Si88-911.6L SOHC 16V Engines with 24mm diameter crank snoutUnderdrive single belt conversion030610502
Del Sol S92-951.5L SOHC 8/16VUnderdrive single belt conversion030610502
Del Sol Si92-951.6L SOHC 16VUnderdrive single belt conversion030610502
Civic Si99-001.6L DOHC 16VUnderdrive single belt conversion030610902
CR-V EX, LX97-012.0L DOHC 16VUnderdrive single belt conversion030610902
Del Sol VTEC94-971.6L DOHC 16VUnderdrive single belt conversion030610902
Civic CX, DX, LX, VX92-951.5L SOHC 8/16VStock diameter stock belt layout220610512
Civic EX, Si92-951.6L SOHC 8/16VStock diameter stock belt layout220610512
Del Sol S92-951.5L SOHC 8/16VStock diameter stock belt layout220610512
Del Sol Si92-951.6L SOHC 8/16VStock diameter stock belt layout220610512
Hyundai
Elantra93-951.6L DOHC 16VUnderdrive stock belt layout020910602
Elantra GLS93-951.8L DOHC 16VUnderdrive stock belt layout020910602
Sonata GL, GLS92-982.0L DOHC 16VUnderdrive stock belt layout020910602
Infiniti
I3096-013.0L DOHC 24VUnderdrive stock belt layout021011002
I3096-013.0L DOHC 24VStock diameter stock belt layout021011012
I3501-043.5L DOHC 24VUnderdrive stock belt layout021011102
I3502-033.0L DOHC 24VStock diameter stock belt layout021011112
FX3503-063.5L DOHC 24VUnderdrive stock belt layout021011502
G3502-063.5L DOHC 24VUnderdrive stock belt layout021011502
M3506-073.5L DOHC 24VUnderdrive stock belt layout021011502
FX3503-063.5L DOHC 24VStock diameter stock belt layout021011512
G3502-063.5L DOHC 24VStock diameter stock belt layout021011512
M3506-073.5L DOHC 24VStock diameter stock belt layout021011512
Infiniti
G3507-083.5L DOHC 24VStock diameter stock belt layout021011812
G3708-083.7L DOHC 24VStock diameter stock belt layout021011812
Lexus
GS30093-023.0L DOHC 24VUnderdrive stock belt layout021210702
IS30001-053.0L DOHC 24VUnderdrive stock belt layout021210702
SC30092-003.0L DOHC 24VUnderdrive stock belt layout021210702
Mitsubishi
Eclipse GS, RS95-992.0L DOHC 16V Non-TurboUnderdrive stock belt layout020110202
Eclipse GS90-942.0L DOHC 16V Non-TurboUnderdrive stock belt layout020910602
Eclipse GS, GSX90-942.0L DOHC 16V TurboUnderdrive stock belt layout020910602
Eclipse GST, GSX90-992.0L DOHC 16V TurboUnderdrive stock belt layout020910602
Lancer Evo IV96-972.0L DOHC TurboUnderdrive stock belt layout020910802
Lancer Evo V98-982.0L DOHC TurboUnderdrive stock belt layout020910802
Lancer Evo VI99-002.0L DOHC TurboUnderdrive stock belt layout020910802
Lancer Evo VII01-022.0L DOHC TurboUnderdrive stock belt layout020910802
Lancer Evo VIII, Evo VIII MR03-052.0L DOHC TurboUnderdrive stock belt layout020910802
Lancer Evo IX, MR06-072.0L DOHC TurboUnderdrive stock belt layout020910802
Nissan
Maxima GLE, GXE, SE95-013.0L DOHC 24VUnderdrive stock belt layout021011002
Maxima GLE, GXE, SE95-013.0L DOHC 24VStock diameter stock belt layout021011012
300ZX90-963.0L DOHC 24V Non-TurboUnderdrive stock belt layout021010602
300ZX90-963.0L DOHC 24V TurboUnderdrive stock belt layout021010602
Altima SE02-063.5L DOHC 24VUnderdrive stock belt layout021011102
Altima SE-R05-063.5L DOHC 24VUnderdrive stock belt layout021011102
Maxima SE, SL02-063.5L DOHC 24VUnderdrive stock belt layout021011102
Murano S, SE, SL03-063.5L DOHC 24VUnderdrive stock belt layout021011102
Altima SE02-063.5L DOHC 24VStock diameter stock belt layout021011112
Altima SE-R05-063.5L DOHC 24VStock diameter stock belt layout021011112
Maxima SE, SL02-063.5L DOHC 24VStock diameter stock belt layout021011112
Murano S, SE, SL03-063.5L DOHC 24VStock diameter stock belt layout021011112
Altima02-062.5L DOHC 16VStock diameter stock belt layout021011412
Sentra LE02-062.5L DOHC 16VStock diameter stock belt layout021011412
Sentra SE-R02-062.5L DOHC 16VStock diameter stock belt layout021011412
Sentra SE-R Spec V02-062.5L DOHC 16VStock diameter stock belt layout021011412
350Z Enthusiast, Grand Touring, Touring, Track03-063.5L DOHC 24VUnderdrive stock belt layout021011502
350Z Enthusiast, Grand Touring, Touring, Track03-063.5L DOHC 24VStock diameter stock belt layout021011512
GTR09-103.8L DOHC 24V Twin TurboStock diameter stock belt layout021011812
350Z07-083.5L DOHC 24VStock diameter stock belt layout021011812
370Z09-103.7L DOHC 24VStock diameter stock belt layout021011812
Plymouth
Laser RS90-942.0L DOHC 16V Non-TurboUnderdrive stock belt layout020910602
Laser RS90-942.0L DOHC 16V TurboUnderdrive stock belt layout020910602
Pontiac
Vibe02-081.8L DOHC 16V VVT-iUnderdrive stock belt layout021210902
Vibe GT02-081.8L DOHC 16V VVTL-iUnderdrive stock belt layout021210902
Saturn
Vue Redline04-073.5L SOHC 24VUnderdrive stock belt layout020611402
Scion
tC04-082.4L DOHC 16VStock diameter stock belt layout021211512
xA04-061.5L DOHC 16VUnderdrive stock belt layout021212002
xB04-071.5L DOHC 16VUnderdrive stock belt layout021212002
Subaru
Baja Sport03-062.5L SOHC 16VUnderdrive stock belt layout021310102
Baja Turbo04-062.5L DOHC 16V TurboUnderdrive stock belt layout021310102
Forester L, S98-022.5L SOHC 16VUnderdrive stock belt layout021310102
Forester LL Bean, X, XS03-072.5L SOHC 16VUnderdrive stock belt layout021310102
Forester XT04-072.5L DOHC 16V TurboUnderdrive stock belt layout021310102
Impreza93-031.6L DOHC 16V Non-U.S. SpecUnderdrive stock belt layout021310102
Impreza Brighton, L, LS, Outback93-971.8L SOHC 16VUnderdrive stock belt layout021310102
Impreza GT97-002.0L DOHC 16V Turbo Non-U.S. SpecUnderdrive stock belt layout021310102
Impreza Brighton, L, LX, Outback95-012.2L SOHC 16VUnderdrive stock belt layout021310102
Impreza Outback, RS98-012.5L DOHC 16VUnderdrive stock belt layout021310102
Impreza Outback, Outback Sport, RS, TS, 2.5i02-072.5L DOHC 16VUnderdrive stock belt layout021310102
Legacy GT, L, L Alpine, L Outdoor, L Sunsport, LS, LSI, LS SP90-942.2L SOHC 16VUnderdrive stock belt layout021310102
Legacy Brighton, L, LS, LSI, Outback, Postal95-992.2L SOHC 16VUnderdrive stock belt layout021310102
Legacy GT, Limited, LSI, Outback95-992.5L DOHC 16VUnderdrive stock belt layout021310102
Legacy00-042.5L SOHC 16VUnderdrive stock belt layout021310102
Legacy 2.5i05-072.5L SOHC 16VUnderdrive stock belt layout021310102
Legacy GT05-072.5L DOHC 16V TurboUnderdrive stock belt layout021310102
Legacy GT Spec B06-072.5L DOHC 16V TurboUnderdrive stock belt layout021310102
Legacy Outback00-042.5L SOHC 16VUnderdrive stock belt layout021310102
Legacy Outback05-072.5L SOHC 16VUnderdrive stock belt layout021310102
Legacy Outback XT05-072.5L DOHC 16V TurboUnderdrive stock belt layout021310102
Impreza STI04-072.5L DOHC 16V TurboUnderdrive stock belt layout021310102
SVX92-973.3L DOHC 24VUnderdrive stock belt layout021310102
Impreza WRX02-052.0L DOHC 16V TurboUnderdrive stock belt layout021310102
Impreza WRX, WRX TR06-072.5L DOHC 16V TurboUnderdrive stock belt layout021310102
Baja Sport03-062.5L SOHC 16VStock diameter stock belt layout021310112
Baja Turbo04-062.5L DOHC 16V TurboStock diameter stock belt layout021310112
Forester L, S98-022.5L SOHC 16VStock diameter stock belt layout021310112
Forester LL Bean, X, XS03-072.5L SOHC 16VStock diameter stock belt layout021310112
Forester XT04-072.5L DOHC 16V TurboStock diameter stock belt layout021310112
Impreza93-031.6L DOHC 16V Non-U.S. SpecUnderdrive stock belt layout021310112
Impreza Brighton, L, LS, Outback93-971.8L SOHC 16VStock diameter stock belt layout021310112
Impreza GT97-002.0L DOHC 16V Turbo Non-U.S. SpecUnderdrive stock belt layout021310112
Impreza Brighton, L, LX, Outback95-012.2L SOHC 16VStock diameter stock belt layout021310112
Impreza Outback, RS98-012.5L DOHC 16VStock diameter stock belt layout021310112
Impreza Outback, Outback Sport, RS, TS, 2.5i02-072.5L SOHC 16VStock diameter stock belt layout021310112
Legacy GT, L, L Alpine, L Outdoor, L Sunsport, LS, LSI, LS SP90-942.2L SOHC 16VStock diameter stock belt layout021310112
Legacy Brighton, L, LS, LSI, Outback, Postal95-992.2L SOHC 16VStock diameter stock belt layout021310112
Legacy GT, Limited, LSI, Outback95-992.5L DOHC 16VStock diameter stock belt layout021310112
Legacy00-042.5L SOHC 16VStock diameter stock belt layout021310112
Legacy 2.5i05-072.5L SOHC 16VStock diameter stock belt layout021310112
Legacy GT05-072.5L DOHC 16V TurboStock diameter stock belt layout021310112
Legacy GT Spec B06-072.5L DOHC 16V TurboStock diameter stock belt layout021310112
Legacy Outback00-042.5L SOHC 16VStock diameter stock belt layout021310112
Legacy Outback05-072.5L SOHC 16VStock diameter stock belt layout021310112
Legacy Outback XT05-072.5L DOHC 16V TurboStock diameter stock belt layout021310112
Impreza STI04-072.5L DOHC 16V TurboStock diameter stock belt layout021310112
SVX92-973.3L DOHC 24VStock diameter stock belt layout021310112
Impreza WRX02-052.0L DOHC 16V TurboStock diameter stock belt layout021310112
Impreza WRX, WRX TR06-072.5L DOHC 16V TurboStock diameter stock belt layout021310112
Toyota
Supra93-983.0L DOHC 24V Non-turboUnderdrive stock belt layout021210702
Supra93-983.0L DOHC 24V TurboUnderdrive stock belt layout021210702
Celica GT00-051.8L DOHC 16V VVT-iUnderdrive stock belt layout021210902
Celica GTS00-051.8L DOHC 16V VVTL-iUnderdrive stock belt layout021210902
Corolla98-081.8L DOHC 16VUnderdrive stock belt layout021210902
Matrix XR02-081.8L DOHC 16V VVT-iUnderdrive stock belt layout021210902
Matrix XRS02-081.8L DOHC 16V VVTL-iUnderdrive stock belt layout021210902
MR Spyder00-051.8L DOHC 16VUnderdrive stock belt layout021210902

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