Going to the track again this weekend. Last time I went had traction problems like most everyone else.

93 Si weighs in at 2400 lbs. B18C-R JDM with LSD I/E

I have Rota Slips with Yoka avids t-4 195-50-15's. I know that the lighter wheels give quicker acceleration but under drag conditions the tend to spin more.

My other wheels are 14" stockies with Potenza re930's 195-60-14. When I had these wheels on the tire spin was way less on straight line acceleration.

Which is the lesser of the two evils? Higher profile and heavier equals better grip / more sidewall flex and less spin. or Shorter profile and lightweight / less sidewall flex and more spin.

I really am working on my launches trying between 4000 and 5000 rpm with a lot of clutch slipping.

In addition I haven't dyno'ed my engine yet but do you all have any thoughts on the shift points?

Thanks guys

 

i wanna know too

 

Anyone? I am taking the extra set of wheels and tires with me so I guess I can post the differences later but Would like to know if any peeps had experimented with this.