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-   -   Mounting weight in car? (https://classracer.com/classforum/showthread.php?t=72332)

Jeff Stout 02-26-2019 03:02 PM

Mounting weight in car?
 
The way I have read the rules there are 3 forms or types of ways to install weight or ballast.
1- 2 weight boxes that weigh 100lbs each
2- 100 lbs of bolted to frame removable weight
3- Bolting and welding permanent weight
Total of 500 lbs max.
Asking as I need to add like another whole car of weight on Olds wagon. It is way to light for T or U/sa

Hacksaw 02-26-2019 04:22 PM

Re: Mounting weight in car?
 
Quote:

Originally Posted by Jeff Stout (Post 583467)
The way I have read the rules there are 3 forms or types of ways to install weight or ballast.
1- 2 weight boxes that weigh 100lbs each
2- 100 lbs of bolted to frame removable weight
3- Bolting and welding permanent weight
Total of 500 lbs max.
Asking as I need to add like another whole car of weight on Olds wagon. It is way to light for T or U/sa

No. The 2 allowable weight boxes can not weigh more than 100 lbs. each including the contents and only a max of 100 is considered removable. Yes. Up to a max of 100 can be bolted to the frame and this is " removable ". Yes. A total of 500 lbs. is allowed but the holding hardware needs to have a shot of weld to satisfy the permanent requirement. So if you need, say 460 lbs. , then figure a way to put 400 in as permanent and make a box to handle close to 100 and you're all set.

Jeff Stout 02-26-2019 04:39 PM

Re: Mounting weight in car?
 
Quote:

Originally Posted by Hacksaw (Post 583470)
No. The 2 allowable weight boxes can not weigh more than 100 lbs. each including the contents and only a max of 100 is considered removable. Yes. Up to a max of 100 can be bolted to the frame and this is " removable ". Yes. A total of 500 lbs. is allowed but the holding hardware needs to have a shot of weld to satisfy the permanent requirement. So if you need, say 460 lbs. , then figure a way to put 400 in as permanent and make a box to handle close to 100 and you're all set.

He is what I'm thinking of doing.
200lb bolted and welded
100 lb. Bolted
1 weight box with contents 100lb
Does this work?

gsa612 02-26-2019 06:09 PM

Re: Mounting weight in car?
 
The way I understand it is you can have one weight box with a max weight of 100 lbs,or two with a max weight of 50 lbs.each.Or you can have 100 lbs bolt in weight but no weight box.Any other weight that's needed up to 500 lbs,has to be welded.Maybe I've been doing it wrong all these years lol......gsa612

Mark Yacavone 02-26-2019 06:31 PM

Re: Mounting weight in car?
 
Still not there.
Assuming you need 300# ...100 to make T, 200 and change more to make U.
So you want 100 # total including box. The heaviest spare that fits the car, it's mounting hardware, plus a factory jack. That weight is free. Doesn't count as anything towards the ballast rule.
Now make up the difference with a piece of plate or railroad track, two 1/2" bolts through frame , per 100#.
Now, when you want to go back to T/SA, take the complete weight box out, the spare and jack , plus some gas ,and you're there.
BTW , I had 650 # in my Omega for O/SA, and nobody weighed anything. ;-)

Jeff Stout 02-26-2019 07:32 PM

Re: Mounting weight in car?
 
Quote:

Originally Posted by Mark Yacavone (Post 583478)
Still not there.
Assuming you need 300# ...100 to make T, 200 and change more to make U.
So you want 100 # total including box. The heaviest spare that fits the car, it's mounting hardware, plus a factory jack. That weight is free. Doesn't count as anything towards the ballast rule.
Now make up the difference with a piece of plate or railroad track, two 1/2" bolts through frame , per 100#.
Now, when you want to go back to T/SA, take the complete weight box out, the spare and jack , plus some gas ,and you're there.
BTW , I had 650 # in my Omega for O/SA, and nobody weighed anything. ;-)

Glad you stated 650 lbs. I thought I was crazy needing 430 total. Small spare and jack is in it already

Dave Noll 02-26-2019 07:34 PM

Re: Mounting weight in car?
 
Question on the 1/2" bolts thru the frame. What about a uni-body car?

J.R. Haddad 02-26-2019 07:51 PM

Re: Mounting weight in car?
 
Don't put the weight in the middle.

Mark Yacavone 02-26-2019 07:59 PM

Re: Mounting weight in car?
 
Quote:

Originally Posted by Dave Noll (Post 583482)
Question on the 1/2" bolts thru the frame. What about a uni-body car?

Dave, You can go through the sheet metal sub-frame, with some big flat washers or plate underneath.

Mark Yacavone 02-26-2019 08:01 PM

Re: Mounting weight in car?
 
Quote:

Originally Posted by Jeff Stout (Post 583481)
Glad you stated 650 lbs. I thought I was crazy needing 430 total. Small spare and jack is in it already

That's nothing. My turbo Mustang had that much.

Aubrey N Bruneau 02-27-2019 02:14 PM

Re: Mounting weight in car?
 
HHMMM...
I realize that I know almost nothing... but
but
SOMEBODY has to ask this
! ! !
Why the dedication to making the car so much heavier ? ? ?
How I see it
A station wagon, by it's very design, already has a weight transfer advantage.
Obviously, the lighter car is faster.
The lighter car is easier on chassis parts... and even the body, if the intended added weight isn't in the form of structural improvement.

Why not go up a class ?
Besides, faster is funner !

just say'n

Mark Yacavone 02-27-2019 02:33 PM

Re: Mounting weight in car?
 
Quote:

Originally Posted by Aubrey N Bruneau (Post 583529)
HHMMM...
I realize that I know almost nothing... but
but
SOMEBODY has to ask this
! ! !
Why the dedication to making the car so much heavier ? ? ?
How I see it
A station wagon, by it's very design, already has a weight transfer advantage.
Obviously, the lighter car is faster.
The lighter car is easier on chassis parts... and even the body, if the intended added weight isn't in the form of structural improvement.

Why not go up a class ?
Besides, faster is funner !

just say'n

Good question. Now here's the answer :

First of all , a lot of racers don't pay any attention to the lower Stock classes. They do indeed ,think faster is funner ( and much more expensive..MY) Also ,they're convinced they can't win much , without being a chaser, running in the 10's. However, the fact remains, you have to hit the tree and run close, if you ever want to win anything, without relying on luck.

Okay..On to the answer.

T/SA index ,14.40 @19 lbs. per.

U/SA index , 14.85 @ 20 per.
Difference , .45 seconds.

At 204 hp, to go from 19 to 20 lbs. per, that is the amount of weight you would add.

You can probably extrapolate it from there.

Jeff Stout 02-27-2019 02:50 PM

Re: Mounting weight in car?
 
To run T I need to be 4103 lb.
To run U I need to be 4310 lb
Currently the car with driver and 3 gallons of gas is 3880 lb.
Yes a wagon will have good weight transfer but I need to meet minimum weight to fit in class. With the extra weight in the rear it will really transfer.

Aubrey N Bruneau 02-27-2019 03:26 PM

Re: Mounting weight in car?
 
Ah yes, I didn't realize that about T / U .
Makes sense now.


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