I would add an external cooler. Heat kills transmissions, and with a bigger stall you are not helping it. They are like 65$ shipped on Amazon.com. B&M 70264. Cheap insurance imho.
If I'd install alky would a turbo listed 44,49 or 60 be a good thing to install rather than my 73K mile stock turbo. I would get Eric to burn the desired chip which would give more timing along with setting of more boost?
You will like the 49 or 44 with the garrett .63 housing with boost in the 22-28 psi range more than the stock turbo. If you're buying one with the Precision Turbo .63 housing add the billet 5857 to the top list. For these Precision housing equipped units, you should go with at least re-stalled D5 (which will be about 2400 rpm at 0-1psi) or a converter that stalls a 2800rpm at 0-1 psi. A RJC boost controller or similar will have it spooling like a stocker with these combos, and the chip settings correct for alky. The next step is the 6262(Bada$$) or one of the older cast 60mm or close sized units. I may be getting a 5857 for a stocker I have here now getting alky and will post anything I can to help others make the decision. Problem is no tracks are open yet near Chicago. HTH
we have had the stock turbo to 30 psi on alky and a stock motor and stock converter,it is more than plenty and smoked the trans.be carefull of the speed bug,it can take a well thought out stocker to a full out money pit in 3 secondsthe 49 will require a converter as well.
My car with the stock turbo busts the street tires (245/50/16 BFG KDWS tires) loose at 50 mph when you are in 2nd and stab the gas...... the stock turbo is not too bad when you crank it up and throw a good chip and some alky at it. It really is mind boggling.