Having traction problems, put in softer spring rates?

[Structure240sx]

well im now making much more power. on the street if i give it 50% throttle in 2nd thw wheels spin. and 3rd isnt much better. i have 255 kumho mx's with stock vlsd. im running d2 coilovers with the 9f/7r spring combo. i also have 5 and 3.5 springs for the coilovers. the rear sits kinda low. should i jsut try softening the dampners or maybe put in a 7/5 or even 5/3.5 spring combo? i suppose i can softening the dampners first since thats easier. from pervious thread about springs rates it seems like stiffer springs rates dont really do much for better handling. the biggest benenfit then of my 9/7 combo would really just be lack of bodyroll then? my car is sitting pretty low with all the tires tucked in the fenders some. would softening the dampners give too much bodyroll to make the tires rub poossibly? i will play with the settings tomorrow or the next day when i get time. jsut looking for some input thanks

[Hijacker]

the only benefit of running such a stiff rate is to reduce the body roll. Upping the sway bars would be the best way to counter softening the springs. Also, having the ride height set so low isn't that good of an idea either. Not much in the way of suspension travel, and you're probably hitting your bump stops quite often. Both of those can effect traction. Also, running the 9/7 combo would tend to lead the car into understeer. I would suggest getting a closer match of spring rates to make the car a bit more neutral in its handling tendencies.

[PGBrian]

maybe invest in some better tires.

[Dano]

maybe raise the back some with softer springs to get more 'squat' on the rear tires???

-Dan

[Chingon]

I don't know how good those kumho's are, but with the colder temperatures, maybe their operating temp. is not reached as easily? Maybe put some weight on the back? ie: battery?

[BuudWeizErr]

the only benefit of running such a stiff rate is to reduce the body roll. Upping the sway bars would be the best way to counter softening the springs. Also, having the ride height set so low isn't that good of an idea either. Not much in the way of suspension travel, and you're probably hitting your bump stops quite often. Both of those can effect traction. Also, running the 9/7 combo would tend to lead the car into understeer. I would suggest getting a closer match of spring rates to make the car a bit more neutral in its handling tendencies.

I run 9/7 every day and I don't do any performance driving other than drift. I have no understeer problems. lowering the car isn't just for looks either there ace.

[Structure240sx]

i have no problem with understeer. actualyl feels like i have a bit of oversteer on a sharp high speed turn. the MX is actually a decent tire, even respected guys around here said so. it does grip better once its warmed up. i woudl raise the rear of the car more but it seems the d2's wont go any higher in the rear. im not sure how far i can go without preloading the springs so i jsut turn them by hand until i get do it any more. i have to get a good look at my tires agian, they might be worn down a bit. i think im going to go with 245 azenis sports .

[Hijacker]

lowering the car isn't just for looks either there ace.

there's still such a thing as too low, Budd.

I'm just saying that if he's hitting his bumpstops too frequently from sitting so low, the car won't handle as good as if it were up like say an inch.

[Structure240sx]

i dont belive i am hitting my mump stops. the other day after going over a huge spped bump at school i heard a bang that seemed liek that would be a bump stop hitting, but that was the only time i ever heard that. i think the very stiff springs keep that from happening most of the time

[Structure240sx]

im starting to contimplate putting the 5's the back since i am get slight over steer or possibly going with the 5f/3.5r combo and raise it back up .75-1". those rates are still over twice as stiff as my old springs

[mynismo]

i would say its your tires... i have the same ones, they grip great, but they could be better. i'd say try throwing on some drag radials and see if that helps.

[Structure240sx]

well i jstu got slicks in for the track. i dont really want to put DR on for daily driving since i drive like 300mi a week. for now ill deal with it. im gonna be garaging my car in a month or so for the winter. next season ill prolly put in softer rates. even the 5/3.5 setup will still be twice as stiff as my old springs