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-   -   Thunderbolt weight (https://classracer.com/classforum/showthread.php?t=74275)

joespanova 09-24-2019 11:32 AM

Thunderbolt weight
 
If I read correctly , an A car in S.S. carries 6lbs / hp. So the factory "rated" the 427 ( was that a tunnel port?) at 425 hp? So Paquet's car only carries 2550 / 2600 lbs?


http://www.classracerinfo.com/NHRA_Classes.aspx
or:
http://classracer.com/classes.html
so is it LBS / hp or LBS / cid?

troublemaker427 09-24-2019 11:56 AM

Re: Thunderbolt weight
 
Hi Riser, not a Tunnel Port

joespanova 09-24-2019 12:08 PM

Re: Thunderbolt weight
 
Quote:

Originally Posted by troublemaker427 (Post 598332)
Hi Riser, not a Tunnel Port


OK , and..........
I wanted the weight confirmation....? Am I close ?

Nick Heath 09-24-2019 12:25 PM

Re: Thunderbolt weight
 
Super Stock factor for the T-Bolt is 466 (or 482 with replacement heads).

466x6.00 + 170 = 2966# or 3062# with replacement heads.

joespanova 09-24-2019 12:45 PM

Re: Thunderbolt weight
 
Quote:

Originally Posted by Nick Heath (Post 598339)
Super Stock factor for the T-Bolt is 466 (or 482 with replacement heads).

466x6.00 + 170 = 2966# or 3062# with replacement heads.

So at some point they added the 170......
Thanks

JeremyDuncan 09-24-2019 01:05 PM

Re: Thunderbolt weight
 
170 lbs is added for drivers weight

joespanova 09-24-2019 01:19 PM

Re: Thunderbolt weight
 
Quote:

Originally Posted by JeremyDuncan (Post 598343)
170 lbs is added for drivers weight

Ahh , ok..so the cars weight is / are independent of the driver. We need skinny drivers then...LOL.

kansas stocker 09-24-2019 01:35 PM

Re: Thunderbolt weight
 
They are weighed together so the weight can come out of the car as is necessary in my case.
Pete

joespanova 09-24-2019 01:40 PM

Re: Thunderbolt weight
 
Quote:

Originally Posted by kansas stocker (Post 598349)
They are weighed together so the weight can come out of the car as is necessary in my case.
Pete

Thats what I would have guessed.....the total weight is combined. Like Pro Stock .....2350 w dr.
I don't know why he indicated the 170?
I'm confused...........again....lol.

kansas stocker 09-24-2019 02:02 PM

Re: Thunderbolt weight
 
The car weight is figured as rated hp X lbs/hp for class plus 170 for the driver. All drivers are figured at 170 and you make up the difference from there.
Pete

bsimms89 09-25-2019 02:59 PM

Re: Thunderbolt weight
 
NHRA assumes all drivers weigh 170 lbs, so going over the scales the car and driver have to weigh : rated horsepower X class weight break +170 lbs. So if a driver weights 200 lbs the car cab be 30 lbs lighter, if the driver weighs 150 the car has to weigh 20 lbs heavier.

Just making up numbers say you have an engine rated at 350 hp and in a class with a weight break of 8.0, the car and driver going over the scales has to weigh: 350 X 8.0 + 170 = 2,970lbs. It doesn't matter what the car or driver weight independent this is the weight they have to be at on the scales, no matter what engine or class you're in you need to add the 170 lbs to the hp and weight break calculation.

Rusty Gillis 09-27-2019 08:21 AM

Re: Thunderbolt weight
 
Also saves time at the scales. When I raced SS back in the 70's they just went by car weight. The driver had to get in and out of the car now there is a sticker on the window with the minimum weight with driver and he doesn't have to get out.


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