135i step with blow off valve - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

C.junior · 01-06-2013, 10:20 PM

Does the blow off valve go off when you hit up shift on the paddle while not letting go of the gas or does it only go off when you step off the gas pedal ?

dknl · 01-06-2013, 10:24 PM

I'm guessing it does as the boost drops when changing gears (hence vacuum) which opens the stock diverter valves.

C.junior · 01-06-2013, 11:23 PM

Any videos online of n54 step with blow off

Basheezy · 01-06-2013, 11:23 PM

There's not much of a drop off in boost when shifting in a step. So I dont think you're gonna hear much blow-off valve noise between shifts

Rodzilla · 01-07-2013, 08:53 AM

You will only hear it once you let off the throttle.

1thirtyfizzo · 01-07-2013, 10:30 AM

I have bov w/ steptronic and you can only hear when u let off the throttle. Usually sound loudest in 3rd gear.

01-06-2013, 10:20 PM	#1
C.junior Private Drives: 135i Join Date: May 2012 Location: Canada Posts: 87 iTrader: (0)	135i step with blow off valve Does the blow off valve go off when you hit up shift on the paddle while not letting go of the gas or does it only go off when you step off the gas pedal ?
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01-07-2013, 08:53 AM	#5
Rodzilla First Lieutenant Drives: 2008 Montego Blue 135i Join Date: Dec 2010 Location: Miami, FL Posts: 382 iTrader: (4) Garage List 2008 BMW 135i [0.00]	You will only hear it once you let off the throttle. __________________ There are no impossible deeds, only incapable men. Eibach frontsway,BMS JB4,AFE Drop InBerk Street Axleback, H&R SPORT SPRINGS,Active Autowerke DP's ,Active Autowerke BOV,Active Autowerke FMIC , BMWPEDALS.COM, JB SPEED Black Grills,Alpina B3 TCU Flash

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01-06-2013, 10:24 PM	#2
dknl Enlisted Member Drives: none Join Date: May 2012 Location: here Posts: 41 iTrader: (0)	I'm guessing it does as the boost drops when changing gears (hence vacuum) which opens the stock diverter valves.

01-06-2013, 11:23 PM	#3
C.junior Private Drives: 135i Join Date: May 2012 Location: Canada Posts: 87 iTrader: (0)	Any videos online of n54 step with blow off

01-06-2013, 11:23 PM	#4
Basheezy Bashar Drives: 2008 BMW 135i Join Date: Jun 2010 Location: Bay Area, CA Posts: 641 iTrader: (1)	There's not much of a drop off in boost when shifting in a step. So I dont think you're gonna hear much blow-off valve noise between shifts

01-07-2013, 10:30 AM	#6
1thirtyfizzo Private First Class Drives: E93 335i and E82 135i Join Date: Apr 2012 Location: Pennsylvania Posts: 190 iTrader: (0)	I have bov w/ steptronic and you can only hear when u let off the throttle. Usually sound loudest in 3rd gear.