Thread: IHRA Hot Rod
View Single Post
Old 10-07-2008, 06:26 PM   #3
Jason Oldfield
Senior Member
 
Jason Oldfield's Avatar
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 619
Likes: 1
Liked 10 Times in 4 Posts
Send a message via AIM to Jason Oldfield Send a message via MSN to Jason Oldfield Send a message via Yahoo to Jason Oldfield
Default Re: IHRA Hot Rod

Quote:
Originally Posted by hotrod View Post
Thanks guys for all the info. One more thing Jason how did u mount that much weight in your car?????? What would be the best way to add 100 + lbs in my car?????
It wasn't easy!

Seriously, I added 3 small weight bars that were about 18" long and made of 2" x 3" square tubing (these weighed about 30 lbs. each), I added a one very large 2" x 3" weight bar that was about 48" long (this ended up being almost 100 lbs. exactly), and then I made up the rest with small 5 lb. lead weights bolted to the (stock) front cross-member. Again, it wasn't easy finding room in the car to put all this weight.

To add 115 lbs., I don't think you'll have much problem though. Chassis tuners could write pages about weight distribution, but you generally want to put the weight as low as possible on the chassis, and distribute it so that your weight distribution is close to 50/50 front to back and side to side WITH YOU IN THE CAR.

I don't know if you've ever scaled all four wheels of your car before, but if you haven't, before you just throw some random weight in there you might want to scale your car to find out where the best place to put the weight. I would expect any local professional chassis builder will have a set a scales, or find your local friendly circle-track racer, as they will definitely have a set.

If you can't find scales or can't afford to have it scaled, then I would put the weight as low as and as near the center line of the rear axle as possible.

Also, if you decide to make up 2" x 3" weight bars like I did, just make sure that you melt the lead shot that you put in the bar. If you don't, you'll end up with a bar that's only 60% as heavy as it could be, due to the air gaps between the spherical lead shot (trust me, I made that mistake). You can either just buy the raw materials yourself, or places like Bickel and Quarter-Max sell kits and completed bars. Here's a couple of links:

http://www.quartermax.com/details.ph...rchTerm=weight

http://www.quartermax.com/details.ph...rchTerm=weight

If you need more help, don't hesitate to ask...
__________________
Jason Oldfield
S/G & S/St 1838
Jason Oldfield is offline   Reply With Quote