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Message: <blockquote data-quote="cobrajeff96" data-source="post: 1507967" data-attributes="member: 29141">First, don't think that by waste-gating over half the turbos' output to save wear & tear or even to just hit your target boost is doing you any favors. Instead, decide on a power goal and size the turbos accordingly. Turbos have what's called a compressor map which tells you their 'sweet spot' or peak efficiency window. If I were you I'd just call a tech line of the turbo brand you're interested in and they'll help you.Second, unless it's going to be a dedicated track/race car, don't put any pumps inside the car (and if you can help it try not to put any reservoirs inside the car) and certainly do not put any heat exchanger inside the trunk. Keep in mind the limit of the oil lines, too. A lot of fluid circulation pumps (Mocal, Setrab, etc) have a limit on their self-priming capability (usually somewhere around 5 ft give or take). This means they can only overcome so much gravity and/or line length before they take on accelerated wear and give up entirely. If you want the pump to last long, try to get the lines as short as possible while avoiding heat sources like the exhaust.I haven't finished off the install of my diff cooling circuit, but here's a pic or two.</blockquote>