No Mine Shaft for 2025!

Sgrossi7158 · 02-17-2025, 08:57 PM

I hate the AHFS. I personally think that Stk/SS is a performance class and should be treated as such. ie; qualified field, lane choice to the lower qualifier, routine tear downs, etc. However, I realize NHRA has chosen not to go in that direction. NHRA has chosen the AHFS as a means to police the class. With that being the case, I don’t see the logic in waiving the AHFS at certain events. The system simply will not work as designed under these circumstances.

GTX JOHN · 02-17-2025, 11:25 PM

I did not see the No Mineshaft on the NHRA website.

Did I miss it somewhere?.

GUMP · 02-18-2025, 08:54 AM

The mineshaft rule actually works against you if you make a fast run. It takes away all of the runs for the weekend that could be used to lower the average. Not just the fast run.

countrypuppy4865 · 02-18-2025, 09:27 AM

Quote:

Originally Posted by GUMP

The mineshaft rule actually works against you if you make a fast run. It takes away all of the runs for the weekend that could be used to lower the average. Not just the fast run.

This is especially bad at the end of the year.

Lyn Smith · 02-18-2025, 09:51 AM

I think every new rule idea submitted was shot down by the rules committee. Some that I heard that got submitted for Stock were allowing addition valve reliefs to solve the piston ding problem, and allowing pistons to be made with the smaller size ring lands so racers would not have to use spacers. Both got shot down. I'm sure there were more. The poll that was taken to see if racers wanted the indexes lowered had a very low percentage of eligible racers voting, and it was shot down.

Rick J · 02-18-2025, 10:07 AM

Quote:

Originally Posted by Lyn Smith

I think every new rule idea submitted was shot down by the rules committee. Some that I heard that got submitted for Stock were allowing addition valve reliefs to solve the piston ding problem, and allowing pistons to be made with the smaller size ring lands so racers would not have to use spacers. Both got shot down. I'm sure there were more. The poll that was taken to see if racers wanted the indexes lowered had a very low percentage of eligible racers voting, and it was shot down.

What's the piston ding problem?

JP1738 · 02-18-2025, 10:39 AM

wtf is the point of AHFS if it isn't employed at races where guys actually have to run their ***** wide open?

JP1738 · 02-18-2025, 10:41 AM

.........................

jmantle · 02-18-2025, 07:34 PM

Quote:

Originally Posted by Rick J

What's the piston ding problem?

As you are not allowed to notch pistons for valve clearance, NHRA saw fit to make it illegal to allow your valves to do the job.

02-17-2025, 08:57 PM	#1
Sgrossi7158 Junior Member Join Date: Sep 2021 Posts: 22 Likes: 141 Liked 57 Times in 12 Posts	Re: No Mine Shaft for 2025! I hate the AHFS. I personally think that Stk/SS is a performance class and should be treated as such. ie; qualified field, lane choice to the lower qualifier, routine tear downs, etc. However, I realize NHRA has chosen not to go in that direction. NHRA has chosen the AHFS as a means to police the class. With that being the case, I don’t see the logic in waiving the AHFS at certain events. The system simply will not work as designed under these circumstances.

02-17-2025, 11:25 PM	#2
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,733 Likes: 2,803 Liked 2,486 Times in 697 Posts	Re: No Mine Shaft for 2025! I did not see the No Mineshaft on the NHRA website. Did I miss it somewhere?. __________________ John Irving 741 Stock 741 Super Stock

02-18-2025, 08:54 AM	#3
GUMP VIP Member Join Date: May 2002 Location: Shelby, NC Posts: 1,823 Likes: 2,168 Liked 2,354 Times in 554 Posts	Re: No Mine Shaft for 2025! The mineshaft rule actually works against you if you make a fast run. It takes away all of the runs for the weekend that could be used to lower the average. Not just the fast run. __________________ Daren Poole-Adams NHRA Stock/SS 2007

02-18-2025, 09:51 AM	#5
Lyn Smith VIP Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 1,204 Likes: 286 Liked 980 Times in 197 Posts	Re: No Mine Shaft for 2025! I think every new rule idea submitted was shot down by the rules committee. Some that I heard that got submitted for Stock were allowing addition valve reliefs to solve the piston ding problem, and allowing pistons to be made with the smaller size ring lands so racers would not have to use spacers. Both got shot down. I'm sure there were more. The poll that was taken to see if racers wanted the indexes lowered had a very low percentage of eligible racers voting, and it was shot down. Last edited by Lyn Smith; 02-18-2025 at 09:59 AM. Reason: more info.

02-18-2025, 10:39 AM	#7
JP1738 Senior Member Join Date: Jan 2024 Location: Charlotte, NC Posts: 577 Likes: 1,645 Liked 1,220 Times in 342 Posts	Re: No Mine Shaft for 2025! wtf is the point of AHFS if it isn't employed at races where guys actually have to run their ***** wide open? __________________ Dawson Pauley #2827 N/SA 1980 Malibu SW 2S 305/180 #2827 S/ST 1978 Mazda RX7 w/ 383 sbc/glide

02-18-2025, 10:41 AM	#8
JP1738 Senior Member Join Date: Jan 2024 Location: Charlotte, NC Posts: 577 Likes: 1,645 Liked 1,220 Times in 342 Posts	Re: No Mine Shaft for 2025! ......................... __________________ Dawson Pauley #2827 N/SA 1980 Malibu SW 2S 305/180 #2827 S/ST 1978 Mazda RX7 w/ 383 sbc/glide Last edited by JP1738; 02-18-2025 at 10:43 AM. Reason: double post