Right...the heat I am talking about is from the HOT side of the turbo...not the compressor side. The turbos will have to spin FASTER (due to smaller fans) to pressurize a manifold with the same volume of air, compared to a larger fan. Spinning faster = hotter
Boost Threshold?...hmmm I see your point, but it has no validity vs. Lag. When I put the pedal to the floor, I hit full boost within about 1-2 seconds regardless of what rpm/gear I am in. Lag is nonexistant, for all practical purposes.
In order for a twin set up to provide the kind of response you want (even though I have no idea what you are looking for), a sequential set up is best, but then you go back to cost and completity...(one oil line, one return line, one manifold, that sort of thing)
no matter how you stack it, it will be more than a single turbo set up, 9.5 times out of 10.
We can talk about the advantages on different applications until we are blue in the face, but the fact remains, The guy who started this topic prolly doesnt give a rat's ass how twins work on a 78 Fairmont...he wants to know how they work on HIS 2.5L V6. For OUR purposes, a twin turbo set up provides MORE disadvantages thand ADvantages.
So, the advantages over a TWIN set up are clear:
