of having 2 turbo's (or more) as opposed to one? surely you got a whole range of them to go through, so i wudda thought you could just up the size, instead of getting more, as surely a pair of t25's wouldnt be as good as 1 turbo twice as big? not planning anything, just get these questions pop up everynow and then that plague me til ifind the answer
depends how the 2 turbos are plumbed up. i'm sure the people in the know will come tell me why but i dont see the benefits of having 2 identical turbos, i can see the point of different sized turbos like supras etc have, one small turbo which winds up low down in the revs and a larger turbo to kick in when it gets going to reduce lag of a single larger turbo creating the same power.........
The larger the turbo, generally the more lag you get. I'm thinking that instead of having one large turbo that takes a while to spin up, too smaller turbos will be more responsive and provide the same power.