Adjustment - Factory Stock Showdown

Ken Miele · 03-21-2019, 11:32 AM

From the NHRA tech department.....

NHRA Technical Department Makes Parity Adjustment to the SAMTech.edu NHRA Factory Stock Showdown

Based on SAMTech.edu NHRA Factory Stock Showdown performance numbers from the first race of the 2019 season, the NHRA Technical Department is increasing the supercharger top pulley size on the 2019 COPO 350 combination from 3.350 inches to 3.500 inches and the 2019 Cobra Jet 327 combination from 3.250 inches to 3.500 inches. This will decrease the 2019 COPO 350 combination supercharger overdrive from 147.5 percent to 136.6 percent overdrive or 10.9 percent. Additionally, this will decrease the 2019 Cobra Jet 327 combination supercharger overdrive from 146.2 percent to 128.6 percent or 17.6 percent. As a reminder, no other changes may be made to all approved superchargers, including, but not limited to: (upper or lower pulley sizes, gear ratios, cases, rotors, etc.). All other permitted combinations in the SAMTech.edu NHRA Factory Stock Showdown will remain unchanged. This rule change will go into effect immediately. NHRA reserves the right in the future to make additional rule changes to control performance and maintain parity in the category.

Superfan1 · 03-21-2019, 02:44 PM

That didn't take long.

George Fitzpatrick · 03-21-2019, 03:28 PM

About how much will they slow down?

BG56 · 03-21-2019, 04:15 PM

Take off the weight from the DragPaks!

JHeath · 03-21-2019, 04:33 PM

They all weigh the same.

George Fitzpatrick · 03-21-2019, 05:02 PM

Quote:

Originally Posted by JHeath

They all weigh the same.

I thought they add 25 to drag pak and removed 25 from copo was that rescinded ?

Ralph A Powell · 03-21-2019, 05:19 PM

NHRA Mudding up the water with no actual testing to see the real world results!

Nick Heath · 03-21-2019, 05:26 PM

Quote:

Originally Posted by George Fitzpatrick

I thought they add 25 to drag pak and removed 25 from copo was that rescinded ?

They did for the old combinations - but the 2019 CJ and COPO weigh 3575 - same as the 2015 Drag Pak.

http://nhraracer.com/content/general...434&zoneid=132

rognelson777 · 03-22-2019, 10:27 AM

Quote:

Originally Posted by Ralph A Powell

NHRA Mudding up the water with no actual testing to see the real world results!

Personally I believe, best way to check combinations is heads up racing. Doing it now will allow future changes if one combination should dominate.
Doing it quickly will keep interest in class.
Also, changing pulley size is probably least expensive thing to change.
Will they have to do a lot of testing, sure, but what top teams are not doing a lot of testing.
Class has basically become Prostock version 2.0 18 wheelers hauling stockers around.

Ralph A Powell · 03-22-2019, 11:49 AM

The big Question becomes who's Sandbaging when and where?

Quote:

Originally Posted by rognelson777

Personally I believe, best way to check combinations is heads up racing. Doing it now will allow future changes if one combination should dominate.
Doing it quickly will keep interest in class.
Also, changing pulley size is probably least expensive thing to change.
Will they have to do a lot of testing, sure, but what top teams are not doing a lot of testing.
Class has basically become Prostock version 2.0 18 wheelers hauling stockers around.

03-21-2019, 11:32 AM	#1
Ken Miele Live Reporter Join Date: Dec 2000 Posts: 4,861 Likes: 456 Liked 16,554 Times in 1,522 Posts	Adjustment - Factory Stock Showdown From the NHRA tech department..... *NHRA Technical Department Makes Parity Adjustment to the SAMTech.edu NHRA Factory Stock Showdown* Based on SAMTech.edu NHRA Factory Stock Showdown performance numbers from the first race of the 2019 season, the NHRA Technical Department is increasing the supercharger top pulley size on the 2019 COPO 350 combination from 3.350 inches to 3.500 inches and the 2019 Cobra Jet 327 combination from 3.250 inches to 3.500 inches. This will decrease the 2019 COPO 350 combination supercharger overdrive from 147.5 percent to 136.6 percent overdrive or 10.9 percent. Additionally, this will decrease the 2019 Cobra Jet 327 combination supercharger overdrive from 146.2 percent to 128.6 percent or 17.6 percent. As a reminder, no other changes may be made to all approved superchargers, including, but not limited to: (upper or lower pulley sizes, gear ratios, cases, rotors, etc.). All other permitted combinations in the SAMTech.edu NHRA Factory Stock Showdown will remain unchanged. This rule change will go into effect immediately. NHRA reserves the right in the future to make additional rule changes to control performance and maintain parity in the category.

03-21-2019, 02:44 PM	#2
Superfan1 VIP Member Join Date: Dec 2007 Location: Bridgeport,CT. Posts: 1,993 Likes: 1,664 Liked 2,637 Times in 440 Posts	Re: Adjustment - Factory Stock Showdown That didn't take long. __________________ Bill Seabrooks - superfan1 Bridgeport, CT

03-21-2019, 03:28 PM	#3
George Fitzpatrick Member Join Date: Oct 2002 Location: West Babylon, NY Posts: 344 Likes: 118 Liked 94 Times in 24 Posts	Re: Adjustment - Factory Stock Showdown About how much will they slow down? __________________ George Fitzpatrick 426 HEMI STK, SS

03-21-2019, 04:15 PM	#4
BG56 Member Join Date: Feb 2017 Posts: 350 Likes: 499 Liked 294 Times in 110 Posts	Re: Adjustment - Factory Stock Showdown Take off the weight from the DragPaks!

03-21-2019, 04:33 PM	#5
JHeath Senior Member Join Date: Jul 2004 Location: Minneapolis Posts: 786 Likes: 2,876 Liked 370 Times in 101 Posts	Re: Adjustment - Factory Stock Showdown They all weigh the same. __________________ Jerry Heath I/S '93 Cobra FS/J 2010 Mustang "Ebay CJ"

03-21-2019, 05:19 PM	#7
Ralph A Powell Member Join Date: Oct 2017 Location: Bay City Texas Posts: 389 Likes: 2 Liked 225 Times in 136 Posts	Re: Adjustment - Factory Stock Showdown NHRA Mudding up the water with no actual testing to see the real world results!