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Registered
Join Date: Jun 2009
Location: Lakewood, CO
Posts: 50
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Boost Tapering Question
I have just noticed that under full throttle, I can achieve .95 Bar of Boost from about 3000 rpm up till about 5500 rpm, then from about 5500 rpm to 6500 rpm (redline) the boost tapers off to about .6 Bar. Is this normal?? Should I have full boost (.95 Bar) all the way to redline?
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02-10-2011, 05:13 PM
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Crotchety Old Bastard
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Depends on the turbo and exhaust system. The 3LDZ and K27-7200 fall off after 5500rpm and typically will not hold 1bar boost through redline.
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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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02-10-2011, 05:59 PM
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78 Porsche 911SC 3.0L, 3.3Turbo soon. 
