Woodburn Dragstrip
7730 Hwy. 219
Woodburn, Oregon

Archives for the ‘Tech Bulletin’ Category


Question:  Can I have a momentary cutoff switch in my Jr. Dragster cockpit if I have a separate cutoff toggle switch?
Answer:   Yes you can. In the 2017 NHRA Summit Jr. Drag Racing League Rulebook, page 39, Buttons/Switches, it states, “Entrants are allowed to use a total of two buttons in the cockpit. One of these switches/buttons […]


QUESTION:  I am new to drag racing, and I am currently building a Super Pro Dragster. I was told that the delay box must be NHRA Accepted. How do I find what delay box is legal for my application?
ANSWER:  A full list of all NHRA Accepted products is available on NHRARacer.com. Simply navigate to the site, […]

Tuesday Tech Question 11/7/2017

Question:  My son’s Jr. Dragster has suspension in both the front and rear of the car. Are there any rules regarding how much travel the car can have?
Answer:  In the 2017 NHRA Summit Jr. Drag Racing League Rulebook, page 34, Suspension, it states, “Suspension permitted; maximum upward suspension travel 2 inches.”

Tuesday Tech Question 10/31/2017

Question:  I am changing my Top Dragster over to a dry sump oil system.  I am getting ready to fit the appropriate oil lines.  I heard that these lines have to be tested.  Could you please explain?
Answer:  You are correct; some of these new lines will need to be tested.  All flexible-pressure oil lines that will be subject to pressures greater than […]

Tuesday Tech Question – 10/24/2017

Question:  I recently purchased a supercharged rear-engine dragster that I will be bracket racing at my local track.  The car should run in the low 7 to high 6 second range.  Could you please tell me what type of helmet I will need?
Answer:  For the car you described, you will need to wear a full-face Snell 2010 or 2015 […]

Tuesday Tech Question 10/17/2017

Question: I have a full-bodied car that I race in Competition Eliminator. Are there any rules as to what window net I have to utilize?
Answer:  All full-bodied cars in Competition Eliminator must be equipped with a window net meeting SFI 27.1. Those window nets must be updated at two-year intervals from the date of manufacture.

Tuesday Tech Question 10/10/2017

Question:  Is there a rule on how the rubber boot mounted carburetor needs to be installed on our Jr Dragster?
Answer:  Yes there is.  Carburetors that are mounted via rubber boots/adapters and clamps must have a secondary mechanical device (bolt, turnbuckle, bracket, etc.) securing the carburetor to the engine/intake manifold.

Tuesday Tech Question – 10/3/2017

Question:  Am I allowed to install a quick-disconnect steering wheel on my Pro E.T. car?
Answer:  Yes you are.  This must be a commercially available quick-disconnect.  Also, the adapter must be welded to the steering shaft.

Tuesday Tech Question – 9/26/2017

Question:  I have a flexible automatic transmission shield meeting SFI Spec 4.1 in my Top Sportsman car.  Could you tell me when it expires and will need to be recertified?
Answer:  A flexible automatic transmission shield meeting SFI Spec 4.1 must be recertified every two years. 

Tuesday Tech Question – 9/19/2017

Question: I recently purchased a car that utilizes a manual transmission. The floor around the transmission seems to have a lot of open area. Is this something that I need to correct prior to attending my first event with the car?
Answer: Yes it is. We require all openings in the driver’s compartment around linkages, lines, […]