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Old 12-20-2019, 10:13 AM   #28 (permalink)
turtle64b
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Location: Granbury, TX
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Quote:
Originally Posted by Senna-F1 View Post
So Eugene says boost should continue to climb even past 15 psi at 6600. Might be something going on. It slowly drops after that instead. So, anyone ever seen a stock pulley setup continue on past 15? It looks like it could just be this SC running out of steam and not being able to supply a continuous 15 psi as revs increase past 6600 on the stock pulley. But Eugene doesn’t think so. Thoughts?

BTW, Does the rate of pressure loss, as seen in the video below, seem reasonable? I had read this rate of loss is OK. I addressed any obvious leaks, except for a bit coming from the MAF sensors.

https://youtu.be/-7ZPmLl_7xI
In my opinion, I think that you lose efficiency and may have air escaping once you get past a certain speed. I see the same thing in my logs, where boost peaks and then tapers off at top end, around 7kish RPM
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