1975 Index System

jimmyparker · 12-27-2013, 08:52 PM

Attached is copy of index system used in the mid seventies, when I mention this system I always get a blank stare as no one seems to remember it . Play with the math based on todays et's for various classes and it is scary.

Jimmy Parker

jimmyparker · 12-27-2013, 08:55 PM

I see the attachment didn't take, I'll try again later or if someone else has it copied feel free to post.

Jimmy Parker

Ed Wright · 12-27-2013, 09:39 PM

Jimmy I remember when they went into effect. I started running C/SM the year they started that. We could only run one tenth under, no dialing down.

GRAPE · 12-27-2013, 10:29 PM

They called it a Par System. All class's had a 3 didget index. C/S was 4.27 C/SA 4.46

The C/SA car would get a .19 head start. First car to finish line would win .they did this so that any car could run against any other car. A/D index was 0.00 would give 4.27 head start to C/S. A /D Record was 7.50. If you add 7.50 to 4.27 =11.77 that was the ET a competeive
C/S should run.The C/S record was 11.72

Bill Diehl · 12-27-2013, 10:48 PM

Who would like to see it that way today?

Mark Yacavone · 12-28-2013, 01:09 AM

Quote:

Originally Posted by Bill Diehl

Who would like to see it that way today?

Probably a lot more fans..than racers.

12-27-2013, 08:52 PM	#1
jimmyparker Member Join Date: Oct 2009 Location: columbus, georgia Posts: 385 Likes: 65 Liked 309 Times in 88 Posts	1975 Index System Attached is copy of index system used in the mid seventies, when I mention this system I always get a blank stare as no one seems to remember it . Play with the math based on todays et's for various classes and it is scary. Jimmy Parker

12-27-2013, 08:55 PM	#2
jimmyparker Member Join Date: Oct 2009 Location: columbus, georgia Posts: 385 Likes: 65 Liked 309 Times in 88 Posts	Re: 1975 Index System I see the attachment didn't take, I'll try again later or if someone else has it copied feel free to post. Jimmy Parker

12-27-2013, 09:39 PM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: 1975 Index System Jimmy I remember when they went into effect. I started running C/SM the year they started that. We could only run one tenth under, no dialing down. __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 12-27-2013 at 09:41 PM.

12-27-2013, 10:29 PM	#4
GRAPE Member Join Date: Mar 2008 Posts: 115 Likes: 0 Liked 1 Time in 1 Post	Re: 1975 Index System They called it a Par System. All class's had a 3 didget index. C/S was 4.27 C/SA 4.46 The C/SA car would get a .19 head start. First car to finish line would win .they did this so that any car could run against any other car. A/D index was 0.00 would give 4.27 head start to C/S. A /D Record was 7.50. If you add 7.50 to 4.27 =11.77 that was the ET a competeive C/S should run.The C/S record was 11.72

12-27-2013, 10:48 PM	#5
Bill Diehl Member Join Date: Dec 2013 Posts: 311 Likes: 2 Liked 9 Times in 8 Posts	Re: 1975 Index System Who would like to see it that way today?