Jump to content
adprescott

Ballast

Recommended Posts

adprescott

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!

Share this post


Link to post
Share on other sites
Ev

CCR says no, but I like the way you think.

Share this post


Link to post
Share on other sites
juliancates

Passenger seat? Remove it and you have plenty of room for ballast? Could even use the seat bolts?

Share this post


Link to post
Share on other sites
adprescott

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.

Share this post


Link to post
Share on other sites
dwesterwick

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.

Share this post


Link to post
Share on other sites
Clavette

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.

Share this post


Link to post
Share on other sites
adprescott

Thanks for some good ideas. Any recommendation on lead brick source? most of the online sources I've found are closer to $2/lb

Share this post


Link to post
Share on other sites
dwesterwick

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.

Share this post


Link to post
Share on other sites
Clavette

it's crazy - we'll spend $1300 on sticker tires but balk at $50 for ballast.

Share this post


Link to post
Share on other sites
Clavette

it's crazy - we'll spend $1300 on sticker tires but balk at $50 for ballast.

Share this post


Link to post
Share on other sites
Ev
it's crazy - we'll spend $1300 on sticker tires but balk at $50 for ballast.

New tires make you faster. Lead makes you slower.

 

Makes sense to me

Share this post


Link to post
Share on other sites
adprescott

Thanks guys!

Share this post


Link to post
Share on other sites
adprescott

Another ballast question. The rules prohibit lead shot ballast. Is shot acceptable if placed in a properly secured ballast box?

Thanks!

Share this post


Link to post
Share on other sites
Ev
Another ballast question. The rules prohibit lead shot ballast. Is shot acceptable if placed in a properly secured ballast box?

Thanks!

The rule is

5.20 Ballast

All ballast shall be solid metal such as steel, lead, or depleted uranium, and consist of a minimum of five (5) pounds per piece. Each piece shall be bolted in place with through-bolts, fender washers, and a locking-nut / system (e.g. jam-nuts, Nylock, etc.). All ballast shall be secured sufficiently and all bolts shall be of Grade five (5). Nylock nuts or metal crimping lock nuts should not be reused.

 

I would have to say no, but I didn't stay at a Holiday Inn last night....

Share this post


Link to post
Share on other sites
drivinhardz06
it's crazy - we'll spend $1300 on sticker tires but balk at $50 for ballast.

New tires make you faster. Lead makes you slower.

 

Makes sense to me

 

My observation in club racing is ballast is the most underused, cheapest chassis tuning tool available.

 

If you aren't running the maximum amount of ballast allowed in your car, you are leaving a lot of performance on the table.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×