Weight break change

Jim Whitehead · 12-12-2023, 11:28 PM

Has anyone noticed some of the weight breaks have changed. Looking in the guide at one of my cars that received Hp I also noticed the weight break is NOT the same as the printed version I have from this summer. The Engine got 4 Hp and also no longer runs in the same class’s The weight breaks are lighter

Tom Meyer · 12-12-2023, 11:52 PM

Years ago this happened to my combo, with the hp hit my car was no longer legal for the class I was running and I could not get the car light enough to get to the new min weight. Was running a 13# class and my new weight was 11.99. IT happens. Tom

Jim Whitehead · 12-13-2023, 08:22 AM

That’s not what happened here. My 85-86 Firebird 305 has two Hp options the weight breaks also changed in the other engine combo that did not get any Hp.

Larry Hill · 12-13-2023, 09:26 AM

If you think NHRA made an error ask you division Tech director to check on it. The class will change only with the HP on the OEM heads. With approved after market heads just the weight is adjusted up or down. Try doing the math yourself and see if you get the same result.
Check and see if the Camaro, same platform, and year model received the same treatment.

12-12-2023, 11:28 PM	#1
Jim Whitehead Member Join Date: Mar 2003 Location: MA. Posts: 283 Likes: 148 Liked 147 Times in 39 Posts	Weight break change Has anyone noticed some of the weight breaks have changed. Looking in the guide at one of my cars that received Hp I also noticed the weight break is NOT the same as the printed version I have from this summer. The Engine got 4 Hp and also no longer runs in the same class’s The weight breaks are lighter

12-12-2023, 11:52 PM	#2
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 928 Likes: 73 Liked 350 Times in 119 Posts	Re: Weight break change Years ago this happened to my combo, with the hp hit my car was no longer legal for the class I was running and I could not get the car light enough to get to the new min weight. Was running a 13# class and my new weight was 11.99. IT happens. Tom __________________ Tom Meyer 5240 SS Stock ???

12-13-2023, 08:22 AM	#3
Jim Whitehead Member Join Date: Mar 2003 Location: MA. Posts: 283 Likes: 148 Liked 147 Times in 39 Posts	Re: Weight break change That’s not what happened here. My 85-86 Firebird 305 has two Hp options the weight breaks also changed in the other engine combo that did not get any Hp.

12-13-2023, 09:26 AM	#4
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,582 Likes: 1,866 Liked 10,582 Times in 2,186 Posts	Re: Weight break change If you think NHRA made an error ask you division Tech director to check on it. The class will change only with the HP on the OEM heads. With approved after market heads just the weight is adjusted up or down. Try doing the math yourself and see if you get the same result. Check and see if the Camaro, same platform, and year model received the same treatment. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817 Last edited by Larry Hill; 12-13-2023 at 09:30 AM.