I'am going to the track next friday and was wondering do i really need to put my stock wheels back on? right now i have the new volk racing gram lights 17x7 on yokohama parada's.....but if i put my stock si wheels back on with the stock tires will i get better times?

 

Yes you will have better 60ft times and 1/4 mile times, if you put the stock SI's on.

Steve

 

even with the stock tires? and could somebody please explaine what the 60ft time is thank you

 

it the time it takes you to go the 1st 60ft of the track and yes, becuase the 17;s will wigh more and more rotational mass,will lower the mph also
just feather the clutch

 

but i have got the gram lights there only 15 lbs,do you think my stock wheels weigh more? and what kind of 60ft times do i want? on my first run my 60ft was 2.584 i know it's very bad

 

it depends on if you know how to launch or not . i only raced on street tires once with my R and i hit 2.2;s all day , that was the 1st time i raced the car.
you are still forgetting the diameter of the wheel . wieght makes a big diff, but the diameter does too . your stocks prob weigh about as much as your 17's do .
your 17;s arent really light wheels., they are light for 17inch wheels however.
know what im saying.

 

yeah i know what you are saying they are light for 17's but there not 8lbs or anything, so should i just use my stock si wheels with the stock tires? can i just change the fronts?

 

best to change em all prob, but the front will do . at least better than thwe 17s will . . .. .heres what to do , do one run with the 17s up front and one with the stocks up front, that wil answer your question ,. it will only take 5 min if that

 

ok thanks for all the help....if i just use the 17's should i drop the tire pressure?
and should i take out my back seat?

 

i would. you wont be ble to drop the presure that much , your prob already on 40 series.