How much for a engine swap that would get you to around the same hp as a TT on the 3.7?

Hook up a 150 shot, pray you can make one pass, then retire the vehicle. Nitrous is the best bang for your buck over any power adders. But to be honest $12k when it's all said and done will get you a supercharger with supporting mods. $15k-$20k will get you a decent twin turbo kit (dyno, tuning, etc) with supporting mods. $25k+ is all frivolous. At that point just trade in your 370z for a c6z06 and mod that. :tiphat:

I wouldn't even try, there is already no room in the engine bay and with the TT (depending on boost) you can put down 450-500 Whp easy. For the time and headache + money...I would never touch an engine swap with this car just go TT if your wanting to do all that. There is just too much involved with engine swaps and with this car, its not worth it.