no. no. no..
Where in the hell is your common sense? We already said the 70mm throttle body isn't going to work on the Z31's VG30 motor. What could possibly make you think that a 90mm (20mm bigger) throttle body is going to be effective?ok well how about this....
eBay Motors: Infiniti Q45 90mm Throttle Body Nissan SR20DET KA24DE (item 370150196273 end time Feb-01-09 19:30:00 PST)
it states that it will work for a 240, and if a 240 TB will work for a z31, .........
see where im going with this.....
if this would work, what other mods are necessary?