Willl this work?
 

Will I have problems with this?


17x9 5x100 +42 rota grids on the oem tires with eibach sportline springs.

Will this work or am I going to have problems will I need anything else. (I plan to get new tires in the future when I have enough money)

tires are going to be stretched out pretty good, but yeah it should work till you can get new tires.

how long do you think I'll last with the tires

i honestly dunno, i don't run stretched tires ever, probably a bit less life than normal guess? someone else wanna comment?

215 Primacy on a 9" rim has been covered

returned from google search
http://www.ft86club.com/forums/showthread.php?t=13824

Michelin warranties Primacy HP up to 35K miles under normal conditions. I have no experience with stretching tires so I can't comment on whether or not they will experience accelerated wear.

Performance of the tire will probably be affected, I would be cautious with the spirited driving.

Safest advice would be to get properly sized tires 235-255 to preserve/improve grip and tire performance. Tires are the only thing that touch the road. Not something to be compromised without professional advice.