Not to beat a dead horse as there are thousands of posts all over the internet about reducing weight for better 1/4 mile performance, but I thought I would share some thoughts after my recent sub install. Now that I am an expert in dismantling the back half of an MKS i realized that there has to be 200+ pounds of crap that can be pulled in about 20 minutes LOL. I'm not sure how the SHO is, but the rear seat back in the MKS is a beast, easy 60-75 pounds. The bottom is far less but still pretty heavy, and of course the spare wheel for those that have it with the associated tools. I also have a 30# car seat in my car at all times. I would imagine the front passenger seat is near 100 pounds alone and can't be too difficult to pull. My best guess off the top of my head is 250+ pulled in less than an hour. This should make a significant difference on track day or for a grudge race.
The most used equation is 1/10th for every 100 pounds. 1hp per 10lbs, 10hp per 100lbs etc. I went in search of some proof of this, I found a guy that did some pretty good testing with an AWD audi that was a 11.3 second car with VERY consistent runs. He would add weight and test. He found that it was about .13 for every 100lbs. Every car will be different and depend on where the weight comes from but I have a feeling that our cars will line up closely with his results, we don't have cars running faster than that so it should be the same or slightly magnified. For example a 9 second car would not see the same results necessarily. Bench racing I am going to say I could get 3 tenths off my normal running setup, we may never know because I may just pull it all the first time at the track and then not tell anyone when I post the time slip
Other than builds with no options, has anyone pulled a bunch of stuff and made a run?
The most used equation is 1/10th for every 100 pounds. 1hp per 10lbs, 10hp per 100lbs etc. I went in search of some proof of this, I found a guy that did some pretty good testing with an AWD audi that was a 11.3 second car with VERY consistent runs. He would add weight and test. He found that it was about .13 for every 100lbs. Every car will be different and depend on where the weight comes from but I have a feeling that our cars will line up closely with his results, we don't have cars running faster than that so it should be the same or slightly magnified. For example a 9 second car would not see the same results necessarily. Bench racing I am going to say I could get 3 tenths off my normal running setup, we may never know because I may just pull it all the first time at the track and then not tell anyone when I post the time slip
