View Full Version : rear% vs. weight

10-25-2010, 02:06 PM
I have a metric chassis motor can not be moved. Rear % is 38.8%. 2400lb min weight rule my car weight 2425 with driver. Would you giveup 2 or 300lbs to get rear%? You have to drive tha car hard to make it handel.

10-27-2010, 11:31 AM
That depends. If the car does not spin comming out of the corners then no I would not give up the weight. But if you find that you are lacking forward bite then yes I would add some weight. I would also look at loosing some off the front.

10-27-2010, 04:25 PM
the rear weight is not all about forward drive, it also helps balance the car thru the corner, you need to get up to at least 47-48 and go from there, as far as taking some off the front... the car weighs 2425 with the driver.... what the hell could possibly be left ?

10-28-2010, 08:43 AM
I would really like to know how it got a metric car down that low. I have stripped my car down to nothing but the bare basics and am lucky to get it down to 3200lbs.

10-28-2010, 02:33 PM
Ours is about 2700 with out driver or weight.

10-29-2010, 05:04 PM
a totally stripped monte with cage and drive train weighs at least 3000, mine scaled at 3270 with no weight or driver.. to get 51% rear I carry 480lbs of lead and with me it scales at 3850 race weight... and its fast!

10-30-2010, 04:05 PM
body is fiberglass.

10-31-2010, 12:39 PM
this is dirt stock tech, im assuming that anything with a fiberglass body isnt on dirt,

my car weighs in around 2830 with driver (315# driver) full frame metric, #1 with ball joint, 22 gallon full fuel cell, 50# of lead on back 51.5% rear, another 50# of lead makes it about 52.5 rear, fiberglass roof, all aluminum c()ckpit/deck/body, bert trans/bell/starter, iron head aluminum intake 358

if i tried real hard i could prolly shave another 100# off, i still run stock metric calipers, steel drive shaft and way more body bracing support than most (i hate the flopping doors, bouncing body syndrome that goes along with skimping on body support)

11-01-2010, 07:05 PM
Full metric chassis, #3 with ball joint, 8 gallon full fuel cell, no weight, 38.8% rear, 1940 fiberglass body, 305,350 trans, on dirt.

11-02-2010, 10:54 AM
almost sounds like one of those cam coupes that never really made it off the ground, I know those were coming in at around 2500 lbs but the engine was set back like a mod, and they had fabricated floorpans.

11-02-2010, 07:59 PM
they used to run them on asphault and now they run them on dirt, motor has to be in stock location, so no rear percent, tryin to find out if adding two or three hundred pounds of weight to make it handle better is worth it

11-02-2010, 10:26 PM
now it weighs 2425 with the driver and a turbo 350.... jesus christ

yes the weight is worth it, thats why everyone does it

11-03-2010, 11:42 PM
I would add more weight if i were you. my home track the min weight is 2500, i run a camaro and with me in the car race ready its just under 3100.. and i believe i am the lightest one. you should check with some other racers at your track and see what they are doing.

11-05-2010, 08:44 AM
Thanks for the info. My son is going to start driving so i have to get it easier to handle. Car is very fast but not for the beginner.