S2000 - main menu

S2000 products

NSX products

other applications

service & installation facility

about ScienceofSpeed

contact ScienceofSpeed

customer service

revolutionized NSX & S2000

ScienceofSpeed home

clearance & used parts sale


your cart is empty

  Search

  ScienceofSpeed news


sign up for ScienceofSpeed News & Special Offers

  new products - S2000



new - complete fuel
pump wiring kits



new - high flow fuel
surge tank



new - E85 FlexFuel
Sensor System



new - gaugeART Video
Gauge Adapter



new - oil filter
adapter kit



new - wastegate
solenoid valve kit


new - Return Fuel
Conversion



new - hood pin brackets


new - Twin Scroll
Turbocharger System



new - EMS & Fuel
System Package



new - AEM 320 LPH
Fuel Pump (E85)

front_black_800.jpg (84616 bytes)
new - Tech Jacket


new - directional vaned
brake rotors

57xtreme-ML - matte graphite.jpg (266624 bytes)
new - Gram Lights
57Xtreme



new - Nike Dri-Fit Polo


new - J's Racing
Type-GT Aero Kit


RSII.jpg (207065 bytes)
new - Advan RSII

 
 



Copyright 2000-2013 ScienceofSpeed
Privacy Policy

S2000 > ENPP > ScienceofSpeed Valve Springs, Retainers & Bases


Paxton 1200/1220
Supercharger Pulleys

 

ScienceofSpeed  Supercharger Pulley - For Paxton Novi 1200/1220

 

 
These supercharger drive pulleys are designed for the ScienceofSpeed Paxton 1200/1220 based Supercharger System and Comptech Supercharger Systems retrofitted with this kit (this pulley is not compatible with CT-Engineering Novi 1220 based supercharger kits).

Proper belt engagement is crucial as a slipping belt will cause the supercharger to not spin reducing power. In several years of installing these supercharger systems on the S2000, we have found what design and materials work best. Compared to other pulleys available - these pulleys fit right on the shaft of the supercharger (no grinding or sanding required), feature a belt guide that prevents belt movement, and feature a durable yet high traction anodize finish that reduces belt slip.
 

 

It is important to note that the accepted industry practice to measure pulley diameter is at the top of the pulley teeth. Our pulleys are measured and listed by this standard. Other manufactures, including Comptech, do not advertise pulleys by this standard.

ScienceofSpeed pulleys have extra flat "teeth" that aid measuring diameter. ScienceofSpeed pulleys are engraved with diameter sizes & part numbers to prevent confusion.
 

approximate pressure at redline (at sea level, at stock compression)
PLEASE NOTE:
These numbers vary drastically based on air density, intake efficiency, and charge cooler design, so they should only be used as a very rough guide and are provided as an estimate only.

Novi 1220 2.0L 2.2L   Novi 1200 2.0L 2.2L
pulley size 9000 RPM 8000 RPM   pulley size 9000 RPM 8000 RPM
5.0" 5 4   5.0" 6.5 6
4.8" 6 4.5   4.8" 7 6.5
4.6" 7 5   4.6" 8 7
4.4" 7.5 6   4.4" 9 8
4.2" 8.5 7   4.2" 10 9
4.0" 9 8   4.0" 11 10
3.8" 10.5 9   3.8" 12.5 11.5
3.6" 11 10.5   3.6" 13 13
3.4" 11.25 11.25   3.4" 15.5 14.5
3.2" 11.5 11.5   3.2" 16 15
3.0" n/a 12   3.0" n/a 16
 
As a very general rule of thumb, with all things being equal our testing has shown:
  • each increase of 0.2" of pulley size results in a pressure increase of 1 - 1.5 PSI (in the most efficient operating area of the supercharger)
  • each increase of 1000 RPM results in a pressure increase of 1 PSI
  • Each 1 point of compression loss results in 1 PSI of pressure loss 
However, this again varies by a number of factors - including air density, intake efficiency, and charge cooler design, so they should only be used as a very rough guide.
 
standard ScienceofSpeed Supercharger Configuration Pulleys:
  • Stage 1 2.0L: 1220 4.8" (approx 6 PSI)
  • Stage 1 2.2L: 1220 4.4" (approx 6 PSI)
  • Stage 2 2.0L: 1220 4.0" (approx 9 PSI)
  • Stage 2 2.2L: 1220 3.8" (approx 9 PSI)
Please note that supporting fuel system (fuel & ignition controller / stand alone engine management, injectors, regulator, & fuel pump) are required.

AP1 (2.0L, 9000 RPM) should not use smaller than 3.2", AP2 (2.2L, 8000 RPM) should not use smaller than 3.0".
 
drive belts:
Smaller pulleys will require a shorter belt. The following belts are provided by ScienceofSpeed. Please specify if you have a ScienceofSpeed Supercharger System or Comptech System with ScienceofSpeed retrofit.
 
ScienceofSpeed Supercharger System:
pulley size pulley part no belt part no belt manufacture
4.8" enpp-1061.00.01.480 4060420 Goodyear
4.6" enpp-1061.00.01.460 4060420 Goodyear
4.4" enpp-1061.00.01.440 4060415 Goodyear
4.2" enpp-1061.00.01.420 4060410 Goodyear
4.0" enpp-1061.00.01.400 4060407 Goodyear
3.8" enpp-1061.00.01.380 5060405 Dayco
3.6" enpp-1061.00.01.360 4060400 Goodyear
3.4" enpp-1061.00.01.340 4060400 Goodyear
3.2" enpp-1061.00.01.320 4060395 Goodyear
3.0" enpp-1061.00.01.300 4060390 Dayco
 
Comptech Supercharger kit with ScienceofSpeed retrofit:
3.6" enpp-1061.00.01.360 4060380 Dayco
3.4" enpp-1061.00.01.340 4060380 Dayco
3.2" enpp-1061.00.01.320 4060374 Goodyear
3.0" enpp-1061.00.01.300 4060370 Dayco
 
Please note that for customers upgrading Comptech Supercharger systems, the pulley mounting hardware from the original kit is not compatible with the Novi 1200/1220. An optional pulley mounting hardware kit is available below.

specs

fitment:
S2000, all yrs
 
 
 
ScienceofSpeed 5.0 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.500]  $89.95  
ScienceofSpeed 4.8 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.480]  $89.95  
ScienceofSpeed 4.6 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.460]  $89.95  
ScienceofSpeed 4.4 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.440]  $89.95  
ScienceofSpeed 4.2 inch Pulley for Novi 1200/1220 Superchargers - CALL
[enpp-1061.00.01.420]  $89.95  
ScienceofSpeed 4.0 inch Pulley for Novi 1200/1220 Superchargers - CALL
[enpp-1061.00.01.400]  $89.95  
ScienceofSpeed 3.8 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.380]  $89.95  
ScienceofSpeed 3.6 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.360]  $89.95  
ScienceofSpeed 3.4 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.340]  $89.95  
ScienceofSpeed 3.2 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.320]  $89.95  
ScienceofSpeed 3.0 inch Pulley for Novi 1200/1220 Superchargers
[enpp-1061.00.01.300]  $89.95  
Pulley Installation Hardware for Novi 1200/1220 Superchargers
[enpp-1061.00.01.02]  $14.00