NHRA Factory Stock Showdown Rules

Brett C · 08-20-2014, 12:14 PM

Hot off the press:

Factory Stock Showdown Rules Reminder

As we approach the 60th annual Chevrolet Performance U.S. Nationals, the NHRA Technical Department wanted to take a moment to remind all competitors of the rules for the Factory Stock Showdown. Below you will see the rules for each of the two classes: FS/A and FS/B. In addition to these rules, the cars must also meet all requirements as outlined in the 2014 NHRA Rulebook. If you have any additional questions, please feel free to contact the NHRA Technical Department at TechDL@nhra.com.

FS/A:
· Index: 10.10
· Supercharged entries only
o Cars with a 2.3L Eaton supercharger must weigh a minimum of 3,400 lbs.
o Cars with a 2.9L Whipple supercharger must weigh a minimum of 3,550 lbs.
FS/B:
· Index: 10.35
· Naturally Aspirated entries only
o Entries up to 400 CID must weigh a minimum of 3,250 lbs.
o Entries up to 430 CID must weigh a minimum of 3,350 lbs.

Joseph Teuton · 08-20-2014, 12:33 PM

Sir the FS/B class that's over 430cid weigh 3500lbs correct?

Rat Raceway · 08-20-2014, 12:36 PM

Is over bore included in the CID or just the factory CID?

dartman · 08-20-2014, 01:51 PM

2011 Dodge V10 entries must weigh a minimum of 3,500 lbs.

Brett C · 08-20-2014, 03:00 PM

Yes, sorry! Didn't realize that didn 't paste.
The V10 is 3500.

As far as the over bored motors, I cannot answer, only the NHRA tech department can.

Jesse Kershaw · 08-21-2014, 03:37 PM

This is the displacement before overbore.

08-20-2014, 12:14 PM	#1
Brett C VIP Member Join Date: Oct 2011 Location: Thibodaux, LA Posts: 1,159 Likes: 248 Liked 846 Times in 193 Posts	NHRA Factory Stock Showdown Rules Hot off the press: Factory Stock Showdown Rules Reminder As we approach the 60th annual Chevrolet Performance U.S. Nationals, the NHRA Technical Department wanted to take a moment to remind all competitors of the rules for the Factory Stock Showdown. Below you will see the rules for each of the two classes: FS/A and FS/B. In addition to these rules, the cars must also meet all requirements as outlined in the 2014 NHRA Rulebook. If you have any additional questions, please feel free to contact the NHRA Technical Department at TechDL@nhra.com. FS/A: · Index: 10.10 · Supercharged entries only o Cars with a 2.3L Eaton supercharger must weigh a minimum of 3,400 lbs. o Cars with a 2.9L Whipple supercharger must weigh a minimum of 3,550 lbs. FS/B: · Index: 10.35 · Naturally Aspirated entries only o Entries up to 400 CID must weigh a minimum of 3,250 lbs. o Entries up to 430 CID must weigh a minimum of 3,350 lbs. __________________ Brett Candies 4192 Stock/SS God Bless America

08-20-2014, 12:33 PM	#2
Joseph Teuton Member Join Date: Mar 2012 Location: HOUMA, LA Posts: 440 Likes: 0 Liked 0 Times in 0 Posts	Re: NHRA Factory Stock Showdown Rules Sir the FS/B class that's over 430cid weigh 3500lbs correct? __________________ JOSEPH TEUTON 4044 STK,SS,

08-20-2014, 12:36 PM	#3
Rat Raceway Member Join Date: Nov 2012 Location: Denver Co Posts: 409 Likes: 282 Liked 35 Times in 17 Posts	Re: NHRA Factory Stock Showdown Rules Is over bore included in the CID or just the factory CID? __________________ Ross Gregory 5133 Stock,Super Stock 53 Top Dragster

08-20-2014, 01:51 PM	#4
dartman Member Join Date: Oct 2005 Location: N.S. CANADA Posts: 498 Likes: 155 Liked 68 Times in 41 Posts	Re: NHRA Factory Stock Showdown Rules 2011 Dodge V10 entries must weigh a minimum of 3,500 lbs. __________________ 1231 FS/D Drag Pak 1231 E/SA 71 Demon Kelly MacKay

08-20-2014, 03:00 PM	#5
Brett C VIP Member Join Date: Oct 2011 Location: Thibodaux, LA Posts: 1,159 Likes: 248 Liked 846 Times in 193 Posts	Re: NHRA Factory Stock Showdown Rules Yes, sorry! Didn't realize that didn 't paste. The V10 is 3500. As far as the over bored motors, I cannot answer, only the NHRA tech department can. __________________ Brett Candies 4192 Stock/SS God Bless America

08-21-2014, 03:37 PM	#6
Jesse Kershaw Member Join Date: Apr 2009 Posts: 108 Likes: 6 Liked 120 Times in 11 Posts	Re: NHRA Factory Stock Showdown Rules This is the displacement before overbore. __________________ Jesse Kershaw