Points/Stats Schedules

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

Tuesday Tech Question presented by Evans Coolant



I’m planning on my Pro ET car to run low 10’s in the 1/4-mile and I will now need an SFI 4.1 trans. shield.  I bought a one year old used SFI 4.1 shield and my racing buddies said it was not legal without lower pan straps.  What do I need to make it legal?




In the 2018 NHRA Rulebook, General Regulation section 21, page 16, 2:14 Transmission, Automatic 2nd paragraph it reads “All non-blanket-type shields must incorporate two (or one, per manufacture’s instructions) ¾ X 1/8-inch straps that bolt to the shield on each side and pass under the transmission pan, or transmission pan must be labeled as meeting SFI Spec 4.1.”