Points/Stats Schedules







Competition
National Events
Regional/Division Events
Member Track Directory
Division Offices
SRAC Advisor
Competition Number/License Applications & Forms
NHRA Approved ASO's
Insurance Claim Information
Tech
Automatic Horsepower Factoring System
AHFS Request
Engine Blueprint Specifications
Indexes and Records
NHRA Accepted Products
Rules
Stock Car Classification
Tech Support Contacts
Contingency
Contingency Award Rules & Policies
Contingency Sponsor Requirements
Mello Yello Series Event Contingency Posting
NHRA Contingency Sponsor Approved Decals
W9 Form

NHRA Technical Department Makes an Announcement Concerning Stock and Super Stock Superchargers

Beginning June 1, 2017, 2.9L Whipple supercharger rotors used in the Stock and Super Stock categories can be no more than 268 millimeters (10.550 inches) in length and no larger in diameter than 104.4 millimeters (4.110 inches). The NHRA Technical Department will periodically confiscate and inspect these superchargers to insure compliance with this policy. Anyone found to have a larger supercharger rotor or to be modifying any part of the supercharger to improve performance will be subject to at a minimum disqualification from the event. If additional penalties are warranted, they will be determined by NHRA in its sole and absolute discretion. If you are unsure of the size of your supercharger rotor, please contact Whipple Superchargers for confirmation.    

 

 

Glen Gray

NHRA

Vice President Technical Operations

 







RM