well first off thats what i was saying lol was weight in the wheels of all places=bad and as far as the weight? it may not be 100 pound through all four wheels all i know is at a weight station a tire swap gets me 100 pounds lol, which i know they are give or take 50, but still. Not to mention have you picked up a 295 35 18 tire yet? they arent light! point being doesnt matter how much it added it just did and in a bad spot so if im wrong on everything else sorry

 

I think he would of been better with the 17s instead of the 18s I would not put 265s on the front either(my personal opinion and they can scrape your bumpers) I use 225s or 235s on the front. Since your not making a lot of power yet I would of used the 265s for the back too and save the other tires.

 

I like the look of the 305's on the back. I don't go to the track much so it isn't a huge deal to me but I just want to at least be low 14s.

 

Heavy wheels killed me in the 1/4th.

 

18" wheels and the springs are killing you.

Bigger wheels make it harder for the engine to turn them. You are moving more weight away from the center even if you decrease the sidewall of the tires to make them the same diameter of the stock wheels and tires. Weight of the 18" really don't have much to do with it. Take 2 wheels of the same weight but one is 1 inch smaller then the other. The bigger wheel will take more force to get turning then the smaller one even tho they weigh the same. The only fix to this is ditch the show wheels if you want performance or increase the amount of torque to the wheels by upgrading wheels.

The stiff springs of a lowering spring set do not allow the car to transfer the weight to the rear. Not being able to transfer the weight keeps the rear wheels unloaded the entire time which causes you to lose traction. even if you drop the nittos down to 17psi your not going to get enough traction to get below a 2.0 60'.

 

edit: edited.

 

i have a 2 inch drop in the front with 275s and i have no problems rubbing, i honestly think that alot of that has to do with the offset, it just so hppens that the fr500s i bought are pretty much the perfect offset for no rubbing front or back! and mustang man has a good point, we also moved what weight we did have out from the center of the wheel which makes a large difference too.

 

I have 275s up front also and have no rubbing problems and you can see how low my car is.

 

yea the 18's and H&R's arent helping you at all.

stock rims or v6 rims + 4.10's, stall and tune could easily put you in the mid 13's or lower depending on your altitude