Just keepn it real!
If you have a stock (Non-Turbo) PT and you want to turbo or super charge it you are throwing good money after bad, epically if you plan on using it as a driver. I have lusted after the extra performance since the day I bought my PT but have refrained from this upgrade because the stock 2.4 is not designed to handle a turbo or a super charger, from both the physical design of the engine to the capabilities of the computer to adjust fuel oxygen mixture at high RPMs.
I can name you several people here in Texas who have destroyed their engines because of the computer can not compensate for this add-on. When the PT is at high RPMs the turbos and super chargers run too lean. Not one of the manufactures has been able to remedy this issue (to my knowledge, if they fix it I will be the first in line to buy).
Chrysler did not have to completely redesign the 2.4 to accommodate a turbo though. The Rods are better ant the pistons have a lower compression (which is another problem for the after market turbo and super chargers the compression on the stock pistons is too high)
My PT is about to his 36,000 miles and I am about to so some engine upgrades: Cam, Crank, rockers, rods etc. I dont think I will do the turbo or super charger though. If you have any good suggestions let me know!
Big Ern-
The Loan PT
http://www.thelonept.com