Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Do we have any new info on turbos??... in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I was just wondering if anyone has any new information on a turbo for 3.6 VTT? Just how hard would ...
- 06-04-04 09:46 AM #1Cadillac Owners Member
- Join Date
- Jun 2004
Do we have any new info on turbos??...
I was just wondering if anyone has any new information on a turbo for 3.6 VTT?
Just how hard would it be to fabricate your own turbo system?
- 06-04-04 12:45 PM #2
Re: Do we have any new info on turbos??...
The hardware changes would be easy compared to upgrading the PCM. You'd need to alter the PCM to fuel correctly under boost, retard timing, etc. Then (IIRC) our fuel system is a "returnless" system, so there would be no easy way to increase fuel pressure while under boost - that would definitely need changing! I'm sure our injectors are of the "high impedance" style, which means the largest current injectors are 60PPH (which would likely be adequate for most users). Using low impedance injectors will eventually blow the injector drivers in the PCM. In my hybrid S-10, I went from stock 28PPH injectors to 50PPH units (with appropriate ECM changes) and I'm already leaning out on the top end at 100% duty cycle!