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Old 01-28-2023, 11:29 PM   #1
Coleydog
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Default How car weight works

Ok I’ve read the specks on the NHRA site to get my HP and base car weight. But I’m still to dense to get it in my head right. 70 Duster 340 me 250 lbs. D is 10.0 factor E is 10.50 and F is 11.0. Does that mean to run F at 11.0 times 299 for HP then add 170 pounds (- 80 lbs me)to get car weight? Any help will be appreciated!
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Old 01-28-2023, 11:54 PM   #2
Alan Roehrich
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Default Re: How car weight works

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Originally Posted by Coleydog View Post
Ok I’ve read the specks on the NHRA site to get my HP and base car weight. But I’m still to dense to get it in my head right. 70 Duster 340 me 250 lbs. D is 10.0 factor E is 10.50 and F is 11.0. Does that mean to run F at 11.0 times 299 for HP then add 170 pounds (- 80 lbs me)to get car weight? Any help will be appreciated!



What you posted looks like you have a handle on it. It's pretty simple. It's your NHRA HP factor multiplied by the weight break for the class. So, yes, 11x299+170. And you simply subtract the amount you weigh over 170 from the weight of the car.


Good luck and have fun!
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Old 01-29-2023, 12:30 AM   #3
Mark Yacavone
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Default Re: How car weight works

Weight breaks
D/S -9.5, E/S- 10, F/S-10.5
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Last edited by Mark Yacavone; 01-29-2023 at 12:41 AM.
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Old 01-29-2023, 10:07 AM   #4
Larry Hill
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Default Re: How car weight works

Is your notch a driver?
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Old 01-29-2023, 10:23 AM   #5
Coleydog
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Default Re: How car weight works

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Is your notch a driver?
Very far from it, just a shell and rusty, one of the reasons I did the Duster.
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Old 01-29-2023, 12:45 PM   #6
Rob Petrie E395
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Default Re: How car weight works

Goto the class racer info website. And make an account. Once you enter your car info. It’ll figure it all out for you.natural, lighter and heavier classes. But you have to register (it’s easy). I’m embarrassed to say. I’ve been looking at that website for a long long time. And just registered last week. I had no idea how much more info there was available. If you just register and log in.

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Old 01-29-2023, 10:10 AM   #7
Coleydog
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Default Re: How car weight works

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Originally Posted by Mark Yacavone View Post
Weight breaks
D/S -9.5, E/S- 10, F/S-10.5
Well I got the weights wrong big time lol. That's a whole lot better. Thanks for the answer
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