 Boost vs. Vacuum |
 May 30 2006, 08:35 AM
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Web Administrator Yo!  Group: Admin Posts: 516 Joined: 30-August 04 From: Mackinaw, IL Member No.: 376  |
Got a quick question for y'all.
I need to rework my upper IC pipe after an engine swap. The shortblock was used but just to be gentle I wanted to give it a few miles naturally aspirated. I disconnected my internal WG to avoid building boost and threw in a straight pipe for the UICP (no BOV). Here is the question... I am running at about 8 lbs of vacuum and slowly build to around 1.5 lbs of vacuum by 3200RPMs (the highest i have ran it so far). Am I getting boost creep? Shouldn't the vacuum hold? Most importantly, am I in danger of some compressor surge since I running no BOV? I wanted to drive the car a little while I rework the UICP but I am thinking that I should hold off. Thoughts? -------------------- Fast & Furious on the outside...DSM under the hood!!!
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May 30 2006, 11:10 AM
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 Post Master Group: Members Posts: 908 Joined: 7-October 03 From: Chillicothe, IL Member No.: 182 |
You will get creep. It's not uncommon to see 2-4psi by 6000 even with the WG sitting wide open. I wouldn't worry about it. If you want less creep, restrict your exhaust.
-------------------- GVR4 866/1000 = the perpetually broken car
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Posts in this topic
99Spyder Boost vs. Vacuum May 30 2006, 08:35 AM
99Spyder Thanks, it makes sense that the WG would not alway... May 30 2006, 01:20 PM |
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