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  #1  
Old 12-07-2006, 09:14 PM
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Join Date: Jul 2004
Location: Annapolis, Md.
Posts: 556
99 E300 TURBO trans shifting

Does anyone know why the boost pressure drops after shifting and then quickly rises again?

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  #2  
Old 12-08-2006, 01:59 PM
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Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
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I think for the same reason you let off the throttle when upshifting a manual; to prevent slipping as you enter a higher gear.

Under heavy thottle from standing start my upshifts have a delay to them, very much like shifting a MT.

The increased hp/torque provided by your chip may exaggerate your sense of that delay.

Are you complaining?
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  #3  
Old 12-08-2006, 04:05 PM
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Join Date: Jul 2004
Location: Annapolis, Md.
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I am definately not complaining. After the chip it is less noticeable. I was just curious because none of my other cars did it and I thought maybe the computer was involved somehow.

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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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