ok be kind...just wondering according to R&T the IX RS did .87g on their skidpad. What kind of mods would make the IX track 1.0g? Without spending thousands or running slicks....

 

Semi-Slicks . Can you say NT-01's or AO-48's

 

so simply changing the tires would generate the higher skidpad number?

 

yes because there's more grip which means better and sharper turning capabilities which means more g's

tires is your best bet

 

RA-1 or R888s, camber plates and a rear sway bar

 

As everyone else has said, tires is the easiest.
Toyo RA1, R888
Nitto NT01
Advan A048

Remember its rubber that meets the road. (couldn't help myself)

 

yup. ^ exactly what the last person said.

the nitto NT01's are sick!

 

without using those semi-slick tires what could you do to make that # on the street? Would it take 255 or larger plus coilovers?

 

It's anything that is going to generate more grip. Wider wheels and wider tires help significantly, but tires most of all. Lowering springs or coilovers with stiffer rear springs would also help. Stiffening up the rear helps as well.

I just went to an 18x8.5 inch wheel with 255/35/18 tires and I definitely notice a difference in grip. Car just feels more planted. Although, the tires are not as grippy, so they seem to break away sooner - better tires would fix that. Bottom line is that although tires are freakin' expensive and don't seem to last long, its the price you pay to get ultimate grip. Hope that helps.

 

Tires are the easiest way to get it to do that.... Get an alignment with a couple degrees negative camber and set the toe to zero, rear trailing arm bushings with a rear sway bar help a great deal as well. That alone done on stock tires you will definitely be over 1g. I'm on full coilovers with the alignment set at -3 degrees camber in the front with zero toe and i have the rear sway bar and bushings. With 300 treadwear sumitomo street tires I would be willing to bet that my car is still over 1g cornering with rock hard tires. I just have no way of testing it.

 

empty parking lot or track