Woodburn Dragstrip
7730 Hwy. 219
Woodburn, Oregon
503-982-4461

Archives for the ‘Tech Bulletin’ Category

TUESDAY TECH QUESTION 12/11/2018

Question:  I’m going to add a fire extinguisher in my Pro ET race car.  What rules do I need to follow?
 
Answer:  Per the 2018 NHRA Rulebook Section 21, page 38:  It is recommended that each contestant have a loaded, serviceable fire extinguisher in their race car, available for immediate use.  Dry chemical or CO2-type, 2 ½-pound minimum size recommended.  Must be mounted […]



TUESDAY TECH QUESTION 12/5/2018

Question:  We are preparing a dragster for Super Comp. The question we have is, our transmission case was SFI 4.1 certified and the tag is punched out November 2013.  The case is 5 years old and needs to be re-certified, are we permitted to run a SFI 4.1 shield over the case?
 
Answer:  You would be able to add an […]



TUESDAY TECH QUESTION: 11/27/2018

Question:  Does NHRA have a place on the internet to get racer information?  I’m looking for things like NHRA-Accepted products and race schedules.
 
Answer:  Yes, our website, www.NHRARacer.com is where you can find all sorts of NHRA racer information.  When you open the site along the left side it has some of the following.  
Latest Updates: which has racer bulletins, HP adjustments, etc.
Competition: […]



TUESDAY TECH QUESTION: 11/20/2018

Question:  Do I need an SFI head and neck restraint for my Super Pro Dragster that runs 7.20 in the 1/4-mile?
 
Answer:  Per the 2018 NHRA Rulebook Advanced ET, Section 4B, page 12; A head and neck restraint device/system meeting SFI 38.1 is mandatory and must display a valid SFI label



TUESDAY TECH QUESTION: 11/13/2018

Question:  I’m an NHRA SFI Tech Inspector and we see a few of the NHRA Lucas Oil Drag Racing Series class cars along with some Pro Stock Bikes come and run our Test & Tune nights.  I deal mostly with E. T. Bracket cars and my question is what classes require oil-containment devices?
 
Answer:  The following NHRA classes require an […]



TUESDAY TECH QUESTION: 11/7/2018

QUESTION:  Do I need to replace the seat belts in my Son’s Jr Dragster?  They have a manufacture date on the belts of November 2018.
ANSWER:  Not yet, your seat belt expiration date is November 30, 2020.  Driver restraint system must meet SFI Spec 16.1 or 16.2 and be updated at two-year intervals from date of manufacture.



TUESDAY TECH QUESTION: 10/30/2018

QUESTION:  I’m in the process of building a Top Dragster and wanted to know if there are any ignition systems that are not legal?
 
ANSWER:  There are two ignition systems that are not legal.  Per the 2018 NHRA Rulebook in General Regulations section 21, page 37, ignition, “The use of any programmable multi-point rev limiter and/or rate-of-acceleration rpm limiter, either by themselves […]



TUESDAY TECH QUESTION: 10/23/2018

QUESTION:  Do I need a diaper on my Advanced ET Dragster that I’m finishing up?  I think it should run 7.20 in the ¼-mile at my local track.
 
ANSWER:   In the 2018 NHRA Rulebook section 4B page 10 paragraph 2, Oil-Retention Device it reads: “All vehicles running 7.49 or quicker must utilize an NHRA-accepted lower engine oil-containment device; may use […]



TUESDAY TECH QUESTION 10/11/18

Question:  Have the Jr Dragster rules changed on fire pants and towing flags?
 
Answer:  No, the rules have not changed. As a matter of fact at the past couple of NHRA Division races that we have ran Jr Dragsters, the the Safety Crew had to warn Jr Dragster racers to wear their SFI 3.2A/1 fire pants (yes, even […]



TUESDAY TECH QUESTION 10/2/2018

Question:  I’m having trouble fitting my SFI 30.1 flexplate shield to my dragster. Can I trim the metal to make it fit my car?
 
Answer:  No, you are not allowed to modify an SFI product. On page 3 of the General Regulations the second paragraph it states “Under no circumstances may any certified product be modified, […]