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 Post subject: Ballast
PostPosted: Thu Dec 21, 2017 10:48 am 
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Are there any rules concerning ballast and possibly securing it in the passenger seat with a 6 point harness. There is very little room in an S2000 for 150 lbs of ballast without drilling the body into swiss cheese.
I'm thinking a weighted crash test dummy...
Would this be legal for TT?. Specifically TT5?
Thanks!


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 Post subject: Re: Ballast
PostPosted: Fri Dec 22, 2017 7:34 am 
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Joined: Tue Jan 04, 2005 2:09 pm
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CCR says no, but I like the way you think.

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05 GTS2 99 M3
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 Post subject: Re: Ballast
PostPosted: Fri Dec 22, 2017 1:00 pm 
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Passenger seat? Remove it and you have plenty of room for ballast? Could even use the seat bolts?

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 Post subject: Re: Ballast
PostPosted: Tue Dec 26, 2017 2:08 pm 
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Good idea on the passenger seat. Unfortunately, this is also my daily driver so I'm in the "how to make a car do two very opposite things well" category. I'm considering some type of mounting brackets to mount lead ballast behind and underneath the passenger seat. Steel ballast is way cheaper but takes up a lot of room.
Still undecided as to how but pretty sure that I need to add the weight needed to keep my s2000 in TT5.


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 Post subject: Re: Ballast
PostPosted: Sun Dec 31, 2017 10:23 am 
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Fundamentally, you want ballast to be as close to the ground as possible (within the rules), so putting it up high in the passenger's seat is far from ideal. 150 lb can make a measurable impact on your CG.

Lead bricks are pretty compact and only ~$1/lb. I don't have something as small as an S2000, but I was able to put a few behind my front seats and under the spare tire. I'm sure you can find places like that to fit lead bricks. If you're really clever, you could melt the lead down into a shape that conforms to the car better. Just be mindful of safety, and don't lick your fingers after you're done working with it.


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 Post subject: Re: Ballast
PostPosted: Sun Dec 31, 2017 12:13 pm 
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I just added a 25 lb lead brick where my passenger seat would sit If I had one. You could still place the seat in the spot. It's low and very close to center of car.

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2017 NASA TX TT3 Champion
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 Post subject: Re: Ballast
PostPosted: Sun Dec 31, 2017 12:58 pm 
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Thanks for some good ideas. Any recommendation on lead brick source? most of the online sources I've found are closer to $2/lb


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 Post subject: Re: Ballast
PostPosted: Tue Jan 02, 2018 6:47 am 
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I've bought them from here before: https://pitstopusa.com/i-5067474-allstar-performance-lead-ballast-25-lb-bar.html.

It's been a few years, but I don't remember them being this expensive. I'm not sure if that's because the price has been jacked up or my memory sucks.

Here's a cheaper source I found with a quick Google search, but I've never bought anything from them before: http://eastcoastspeed.com/i-12056943-allstar-performance-lead-ballast-25-lb-bar.html. However, it's still at ~$2/lb.


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 Post subject: Re: Ballast
PostPosted: Tue Jan 02, 2018 7:43 am 
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If you can't find anything local, this place sells 30 lb bricks for $2 a pound, but at least shipping is included https://www.rotometals.com/ballast-brick-loaf-ingot-30-pounds-freight-included/

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05 GTS2 99 M3
05 PTE - Honda Accord LX - SOLD
SFT(Spec Flat Tow) Ford SD


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 Post subject: Re: Ballast
PostPosted: Tue Jan 02, 2018 4:02 pm 
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it's crazy - we'll spend $1300 on sticker tires but balk at $50 for ballast.

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2014-2016 NASA TX TT3 Runner-up


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