sway bar upgrade

neon angel · Post by **neon angel** » Tue Apr 28, 2009 8:27 am

what would be a better up grade for autox,rallyx and drag

a 22mm or a 24 3way adjustable

ragek23 · Post by **ragek23** » Tue Apr 28, 2009 9:04 am

in autox the 22mm is best the 24 alone is just way to be in the rear.

if you are talking about these sizes being front sways I would'nt upgrade the front bar without getting a rear.

OB · Post by OB » Tue Apr 28, 2009 9:30 am

ragek23 wrote:in autox the 22mm is best the 24 alone is just way to be in the rear.

if you are talking about these sizes being front sways I would'nt upgrade the front bar without getting a rear.

Never heard of an adjustable front bar, so he must be talking about the rear. Even just a 22mm rear bar w/ stock front is gonna have some oversteer. The best bar has a lot to do with what suspension and tires you plan to run.

neon angel · Post by **neon angel** » Tue Apr 28, 2009 1:12 pm

well right now i have 24mm in front with complete srt suspension swap with srt wheels with 205/50/17 riken raptors,vibrant f&r strut bars too

ragek23 · Post by **ragek23** » Tue Apr 28, 2009 1:36 pm

OB wrote:
ragek23 wrote:in autox the 22mm is best the 24 alone is just way to be in the rear.

if you are talking about these sizes being front sways I would'nt upgrade the front bar without getting a rear.
Never heard of an adjustable front bar, so he must be talking about the rear. Even just a 22mm rear bar w/ stock front is gonna have some oversteer. The best bar has a lot to do with what suspension and tires you plan to run.

22mm rear is awesome with stock front bar. Ofcourse that setup is only great if its complemented with very sticky tires larger rims and coil-overs. The 22mm rear leaves the car with the ability to unsettle and transfer weight nicely in autox and in rally but, no real effect on straight line stuff.

yeah 24mm front/ 22 rear i think would be optimal with your setup. any more in the rear and u will get over-steer as OB mentioned. I wouldn't recommend adding the amount of oversteer the 24 can give you until after u have done quite a few autox events because in adverse driving conditions the big rear bar has the potential to get you in some deep trouble if you aren't experienced with the setup.

bone-yard-racing · Post by **bone-yard-racing** » Tue Apr 28, 2009 2:02 pm

YOU WILL NOT AND CAN NOT EVER COMPAIN A CAR SUCCESSFULLY IN AUTOCROSS AND RALLYCROSS AND DRAG!!!

Autocross: 22mm on asphalt 24 on concrete
Rally: None or stock
Drag: none

ragek23 · Post by **ragek23** » Tue Apr 28, 2009 2:10 pm

very true^ the best way is to tune for one event and one event only.

but i am curious don't u break loose easier on concrete vs. asphalt?

bone-yard-racing · Post by **bone-yard-racing** » Tue Apr 28, 2009 11:04 pm

Not usually the concrete tends to be stickier I know its the opposite of what you'd think.

ragek23 · Post by **ragek23** » Wed Apr 29, 2009 12:09 am

thats weird cuz when topgear did the indoor 0-60 record thing they said they couldn't get traction because of the concrete. Prolly cuz it was a smooth finish tho and prolly the groved/rough concrete thats stickier with tires.

friction coefficents:
Rubber Dry Asphalt 0.9 (0.5 - 0.81)
Rubber Wet Asphalt 0.25 - 0.751)
Rubber Dry Concrete 0.6 - 0.851)
Rubber Wet Concrete 0.45 - 0.751)

hmm looks like the only drastic difference is when concrete is wet it can grip more.

hybrid-Srt2001 · Post by **hybrid-Srt2001** » Wed Apr 29, 2009 12:16 am

badly prepped concrete is bad, one that has been heated and sprayed with the proper material will make the car stick better than asphalt

Swordfish2Cowboy · Post by **Swordfish2Cowboy** » Wed Apr 29, 2009 8:29 am

ragek23 wrote:thats weird cuz when topgear did the indoor 0-60 record thing they said they couldn't get traction because of the concrete. Prolly cuz it was a smooth finish tho and prolly the groved/rough concrete thats stickier with tires.

I thought that was tile floor.

ragek23 · Post by **ragek23** » Wed Apr 29, 2009 11:42 am

looks like concrete to me :
http://www.webridestv.com/showvideo.aspx?video=50074

Donkeypuncher · Post by **Donkeypuncher** » Wed Apr 29, 2009 7:42 pm

It's concrete with one of those clear epoxy resins applied over the top like people use on their garage floors. That surface is only good if it's prepped, then it grabs like a mofo. Our local tracks have the same smooth concrete and traction is never a problem unless you do a ricer launch.