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Mechanical Boost Gauge Hook Up
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10 Ford Raptor 86 930 |
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Crotchety Old Bastard
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Best place - intake manifold
Best material - S/S braided line
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8 |
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Or the brake booster, it's a bit closer.
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2014 Cayman S 2011 Cayenne Turbo 1979 930 (475 rwhp at 0.95 bar) |
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Join Date: Feb 2001
Location: Viera FL
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Wastegate feed line on intercooler
AFJ
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Es geht nicht darum wie schnell man faehrt, sondern wie gut man schnell fahren kann. Ihr Brunnen der nutzlosen Porsche Information |
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Crotchety Old Bastard
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Actually it depends on what you want to read.
If all you are concerned about is the boost level seen by the engine heads then plumb the line into the intake manifold after the throttle. If you want to also see if spikes exist during closed throttle events then plumb the line before the throttle. If you are interested in the shortest path to run a line then plumb it into the brake vac system. The stock location for a 930 is plumbed into the BOV housing - before the throttle. If you use a tattle tale gauge plumbed into the stock location it will record boost spikes. As for line material, if you desire the least expensive material use plastic tubing. If you desire the most robust use S/S braided line.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8 |
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Join Date: Jun 2001
Location: Sweden
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Before throttle: no vacuum but you see boost peaks in case BOV goes off-line.
After throttle: you get vacuum reading but no boost peaks. Your gauge doesn't register vacuum so I suggest connecting it somewhere on the intercooler, before throttle. Hose material is not critical, there is no flow trough the hose. Ordinarry rubber line works OK.
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Thank you for your time, |
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Join Date: Mar 2005
Location: Near Atlanta
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I bought one from Hollywood speedo and it came with the "T" and hose kit for the brake booster. It is a boosy only gage and works great. Since the brake booster is in the front trunk area and never sees any sort of abuse, you don't need SS hose. I used the same hose that vacuum lines use.
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911rudy |
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