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Author Topic:   Shaving weight
RACEINMUD
Dirt Freak

Total posts: 323
posted October 28, 2004 12:13 PM  
Hi All. I need some help in shaving 300+ pounds from my metric. The rules say Oem Firewall and floorboard. I have skinned fenders, doors, hood, top and trunk hood and I'm looking at my car and wander how the other racers are getting their cars under 3000 (rules say 3000 min)and adding lead where they need it. Please help if you have some ideas. Thanks! Race

Flanndad
Dirt Freak

Total posts: 255
posted October 28, 2004 12:48 PM  
Is it complete oem floorboard, at our track they let us cut it off right behind the driver.

crew42tx
Dirt Full Roller

Total posts: 53
posted October 28, 2004 01:33 PM  
cut out kickpanels and factory dash supports. Thats far from 300lbs. but its a start. If your metric is 3300lbs. with gutted hood, fenders, trunk, roof and doors I think the problem lies in the way the car is built. Too much or too large of tubing. We have the main frame and the trunk "X" ed and all the bars to make ours imca leagal and a few extra bars i.e. full rear loop and internal nerf bars inside doors and rear quarters and our metric with driver and no lead is around 3000lbs. We could have made it lighter but I wanted to be able to race it more than one season and wanted it to be able to take hit. One problem might be if you used pipe instead of tubing.

Hope this helps a little.

BIGDADDYBOZ
Dirt Freak

Total posts: 466
posted October 28, 2004 02:12 PM  
I would check tubing size you can use smaller tubing in places and be ok. My Metric Hobby Stock weighs 2850 race ready with out me in it and the frame is all boxed in and xed front and rear.

eborcim
Dirt Freak

Total posts: 303
posted October 28, 2004 03:51 PM  
aftermarket (taiwan) fenders are a lot lighter than junkyard fenders

stockcar5
Dirt Forum Champ
Total posts: 578
posted October 28, 2004 04:16 PM  
my car with no driver or lead but full of fuel was 2495. race ready its about 2800. if i need to meet a 3000lbs rule i end up at 55% rear weight.
things to try depends on your rules.

lightweight clutch
driveshaft
full spool rear end
gundrilled axles
aluminum 2 speed tranny
oem heads instead of darts (vortecs..saves about 20 lbs)
aluminum fan and radiator
gutting all the little tin and body seam filler
lightweight seat
kick panels
roof cross beam supports
panels under opera window

hope this is a start for you

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www.geocities.com/dirtstockcar5

[This message has been edited by stockcar5 (edited October 28, 2004).]

racer17j
Dirt Forum Champ
Total posts: 5390
posted October 28, 2004 04:41 PM  
not sure it helps or you already have done it but..
I got rid of the front header/bumper and replaced with a monte ss dirt nose with homemade tubing bumper(again sorry if you have aready)
Can you gut the floor of the trunk? as well as the side supports and what not?
hope it helps

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If it aint got a motor...it's not a sport

GARYAL
Dirt Forum Racer

Total posts: 94
posted October 29, 2004 10:00 AM  
just getting my new metric in shape and hear are a few things i did. the first step is to get all of the fenders 1/4 panels top and doors off the car. that way you can see the problems.

1) cut every piece of floorboard they will let you get rid of out of the car. find out if you can remove everything behind the driver.

2) if they will let you get rid of frame behind rear axel. these thing weigh alot and arn't needed as much replace them with 1.5" pipe it will weigh about 1/4 as much as the frame.

3)make shore you gut those 1/4 panels. nothing but the outer skin should be left

4) get rid of the rocker panels. I actually lowered my body when i hung it so that the door covered up where they should have been.

5) kick panels weigh more than you think. take them all the way to the firewall. those door mounts are heavy.

6) cut the excess metal off the firewall. alot of it is double layer.

7)in front of the firewall get rid of all fenderwells, bumpers and anything else stock.

simply put take the car to a bare frame and then ask do i need this before you put it back on.
my first car i even left the stock fender bolt plates on its is wild what you can learn to remove from when you start.



GARYAL
Dirt Forum Racer

Total posts: 94
posted October 29, 2004 10:03 AM  
just getting my new metric in shape and hear are a few things i did. the first step is to get all of the fenders 1/4 panels top and doors off the car. that way you can see the problems.

1) cut every piece of floorboard they will let you get rid of out of the car. find out if you can remove everything behind the driver.

2) if they will let you get rid of frame behind rear axel. these thing weigh alot and arn't needed as much replace them with 1.5" pipe it will weigh about 1/4 as much as the frame.

3)make shore you gut those 1/4 panels. nothing but the outer skin should be left

4) get rid of the rocker panels. I actually lowered my body when i hung it so that the door covered up where they should have been.

5) kick panels weigh more than you think. take them all the way to the firewall. those door mounts are heavy.

6) cut the excess metal off the firewall. alot of it is double layer.

7)in front of the firewall get rid of all fenderwells, bumpers and anything else stock.

simply put take the car to a bare frame and then ask do i need this before you put it back on.
my first car i even left the stock fender bolt plates on its is wild what you can learn to remove from when you start.



Bluebomber
Dirt Full Roller

Total posts: 52
posted October 29, 2004 02:22 PM  
no offense but, could you go on a diet?? that is if the weight rule is with driver

Eljojo
Dirt Forum Champ
Total posts: 968
posted October 29, 2004 07:09 PM  
I don't get too excited about removing weight that is behind the driver. But that darn pig-iron that is up front has to go! It's a lot of work, but it will pay off...but Garyal is on the right track! If it doesn't make the car safer or faster--dumpit! Pull your doors, front fenders, and dash. See all that pig-iron holding the front end together? Put all that stuff in the boneyard and put your body back on. Don't overlook the windshield posts, those things are very heavy!
I think of it like this: 32lbs is 1 percent of my cars weight. If I leave 32 lbs on the front end that isn't nessecary, I have to add 32lbs to the rear to offset it. That adds up to 64 lbs of weight I have to takeout racing with me. Now if I have my car at "race weight" of 3200 lbs and it's got 50% rear and I cut 32# off the front I add it to the rear...now I have 52% rear...

redneck racing
Dirt Forum Champ
Total posts: 860
posted November 05, 2004 04:32 PM  
Ive heard that you dont want to have anything heavy below 12in keep it high in the car. Eddie

juni
Dirt Maniac

Total posts: 184
posted November 06, 2004 10:58 PM  
Look for a stock alumin hood off a olds cut. they don't way any thing and will fit a metric car just fine.

Hobby_24W
Dirt Newbie

Total posts: 2
posted November 07, 2004 08:58 AM  
you really dont want the weight up high the higher up it is the more it weighs

racerman707
Dirt Freak

Total posts: 374
posted November 07, 2004 01:17 PM  
"The higher it is the more it weighs"??????????

jay116
Dirt Freak

Total posts: 428
posted November 07, 2004 03:06 PM  
WEIGHT HIGH IN THE CAR LETS IT ROLE OVER GIVING YOU SIDE BITE BUT IT IS STILL BEST TO GET RID OF ALL OF THE WEIGHT YOU CAN AND THEN PUT IT BACK IN WHERE YOU NEED IT.

RACEINMUD
Dirt Freak

Total posts: 323
posted November 09, 2004 12:46 PM  
Thanks for the help! I'll start cutting things I missed and let ya'll know how it comes out. Race

    

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