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-   -   Slim down for ..car gains? (https://www.ft86club.com/forums/showthread.php?t=127190)

Lakitu 04-25-2018 01:10 PM

Slim down for ..car gains?
 
If you go to the gym and lose 30 lbs, how much hp/torque does that add to your car? :P

HKz 04-25-2018 01:13 PM

none ofc, but your cog goes even lower :popcorn:

Spuds 04-25-2018 10:17 PM

Your acceleration will be faster, but your torque at the wheels will average 0.8 ft-lb less in 2nd due to the increase in inertial resistance. At least according to the estimates I plugged in to my calculator. Need to get some numbers off my car still...

Mr.ac 04-25-2018 11:07 PM

Before I race I take some laxatives. I need every ounce to win a race.

totopo 04-25-2018 11:13 PM

Quote:

Originally Posted by Mr.ac (Post 3077719)
Before I race I take some laxatives. I need every ounce to win a race.

https://www.telegraph.co.uk/sport/mo...t-problem.html

that's not enough dedication. You need to fast the day before as well.

Mr.ac 04-26-2018 12:00 AM

Quote:

Originally Posted by totopo (Post 3077721)
https://www.telegraph.co.uk/sport/mo...t-problem.html

that's not enough dedication. You need to fast the day before as well.

Dam. Just when I think I'm ahead.

nikitopo 04-26-2018 02:08 AM

We have here a sand that kids use for playing. It is called spielsand. Try to load 4 packs of this in the trunk of any car and see what will happen. I did this last weekend in my Forester.


http://i67.tinypic.com/j94i37.jpg

Teseo 04-26-2018 08:10 AM

I put a bench with some weight plates few days back, approx 265 pounds and i feeled the weight. I guess 60+ pounds you will notice the difference

krayzie 04-26-2018 09:28 AM

If you remote control the car then you can cancel out your entire bodyweight.

Cartman 04-26-2018 09:46 AM

I've lost 40 lbs and my laps worsen from 1:08.7s to barely breaking 1:10's






but I also switched from RE71R to RS4s

Roadcone 04-26-2018 09:50 AM

every 10lbs you lose usually equates to roughly the same performance as a 1hp gain.

gtpvette 04-26-2018 10:52 AM

Quote:

Originally Posted by Roadcone (Post 3077844)
every 10lbs you lose usually equates to roughly the same performance as a 1hp gain.



I've always heard 7lb,,, but close enough either way. 3-4 HP for 30 lb

bcj 04-26-2018 12:12 PM

Sugar free Haribo

https://assets3.thrillist.com/v1/ima...ontal_main.jpg

Spuds 04-26-2018 12:26 PM

Quote:

Originally Posted by Roadcone (Post 3077844)
every 10lbs you lose usually equates to roughly the same performance as a 1hp gain.

Depends on how much percent of the total car weight that amounts to, and the power to weight ratio.

FRS: 2750lb+200lb driver and 200chp. P/W=0.0677966

Gain of 1hp: P/W=0.0681356

New Total weight needed for 1hp gain equivalent performance (P/W):
P/(P/W)=200/0.0681356=2935lb.

2935lb-2750lb-200lb= -15lb


Tldr, on our car the magic number is approximately 15 lb per hp performance gain as measured by p/w.

Now, is that a good measurement of performance, :iono:? Acceleration is a better measurement, but that needs more maths and I already told you all the answer to that lol.


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