12VALVEADAM
Motivated
- Joined
- Jun 27, 2011
- Messages
- 1,146
I am building up a set of twins 66 over s480, and was wondering what size the hot pipe between turbos should be 3" 3.5" 4'? i was leaning toward 4" just for flow, but will it hinder spoolup? Just cant find a good answer on this. Any help is great!