Converting R31 Gts To 5 Stud
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Yeah, Turbosmart e-gate seems the way if you really want to get fancy - though much can be achieved with a couple of 3-ports and a decent enough ECU as well. -
By joshuaho96 · Posted
Yep, the pneumatic wastegate setup is actually quite interesting. The problem is where you plan on sourcing enough vacuum to keep the wastegate fully closed for extended periods under boost. BMW used a vacuum pump + vacuum accumulators to make it all work. I can't imagine trying to package any of that in an RB turbo where it feels like the engine bay is already laughably packed. -
Depends on the year/model - mine is the version of the N55 which came with an e-gate however the "PWG" (pneumatic wastegate) versions actually can also do this. They use a vacuum setup to "pull the gate open" against the spring instead of "push it open" like conventional wg setups. This naturally means they can actually control boost down to a very low level/just open the gate if they want to.
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By joshuaho96 · Posted
They have e-gates. At cold start they have the gate fully open to heat the cats faster. Then during cruise as mentioned fully open wastegates reduce exhaust pumping loss. -
Ill stick with my black Friday sale pirellis. They were the factory option and a damn good price when on sale.
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