Quote:
Originally Posted by Arrvaxx
Warning...thread hijack in progress.
Just curious why someone would choose a single turbo over two? Is it a cost thing? |
The primary advantage to twins is the quick spool time. A well built, twin scroll, ball bearing single can come on just as fast. All things being equal, singles offer more torque, lower cost, more flexibility, and better reliability. Small engines will push twins better, but the VQ37 moves a lot of air.
Fewer turbos to break, fewer wastegates to maintain/set, fewer oil feed/return lines, less downpipe and intercooler piping, less vacuum line connections.
Specifically, the Boosted Performance setup is easier to install, maintain, etc...
Many of the traditional TT guys (RX7, Supra, etc..) have started converting to singles and OEM's have started going down the twin-scroll single route as well.