| Being that you are towing heavy and that seems to be the reason you want to increase the turbo size, that changes things somewhat. You might look into a twin turbo setup. That will keep your EGT's in check, have NO lag and will simply by cool.
As for the trans, 100 hp over stock is a rule of thumb, good advice there.
Get a good multi plate billet cover converter, a Transgo Kit and a few other tweaks and you will be good, add some after market clutches for good measure and your on the way. |