FirstOrbit84
Veteran Member
Hi guys, I've already got the engine mods in my sig which as of right now are RC2, sprint 520s, and a mufflerectomy. At WOT I'm pushing 18psi constant, with a 21psi spike. When I punch the throttle (and don't let the boost build up) I get a ton of soot, but when I gradually roll onto it I still go fast but not nearly as much soot if any.
My question is: Will a larger turbo such as a VNT17 or 17/22 hybrid give me any appreciable power gains without changing anything else?? Or will I have to get retuned, but have to hold back because of the auto trans??
What other mods would I need besides a 5-speed swap, larger injectors and a retune to fully support the capabilities of the larger turbo?? 3-bar map sensor??
My question is: Will a larger turbo such as a VNT17 or 17/22 hybrid give me any appreciable power gains without changing anything else?? Or will I have to get retuned, but have to hold back because of the auto trans??
What other mods would I need besides a 5-speed swap, larger injectors and a retune to fully support the capabilities of the larger turbo?? 3-bar map sensor??