Golf tee without a jack?

VailM3 · 03-25-2013, 10:22 AM

So going to do this finally to the Z. (i search) I know its on the right exhaust can as you look at the Z from the rear. Is it possible to disconnect and plug without lifting the car: Mine is in an underground lot and dont have access to a jack without heading to a shop of sorts. I was planning on disconnecting those those and plugging it as it would be easier to connect than cutting off a ziptie.

Also is gas mileage really affected by this due to lack of back pressure?

army_men · 03-25-2013, 10:35 AM

yes. i put a rug on the ground and lay down next to the exhaust tip. it's quite easy to find the S shaped hose, u don't even need to get your face dirty.

I don't know about backpressure. I haven't noticed any change in gas mileage, mine is steady below 11L/100km ever since day 1.

I don't believe in back pressure on this turbo car. I think it's a myth, but people are welcome to prove otherwise. I'm open ears.

ManiacGT · 03-25-2013, 10:45 AM

The flap has no effect on anything, despite all the 'true/fact' guesswork you may read about it, on anything other than the sound.

BMW placed this flap on the exhaust to quieten it down at startup and prevent drone. I've disabled mine long ago, no difference to anything other than its louder.

VailM3 · 03-25-2013, 10:55 AM

Quote:

Originally Posted by ManiacGT

The flap has no effect on anything, despite all the 'true/fact' guesswork you may read about it, on anything other than the sound.

BMW placed this flap on the exhaust to quieten it down at startup and prevent drone. I've disabled mine long ago, no difference to anything other than its louder.

how is the highway speed drone top up/down?

ManiacGT · 03-25-2013, 11:40 AM

There's little difference when driving at speed. A bit more 'boom' when pushing the throttle in high gears. Its at low speeds its much louder. Especially on the DCT with the overrun pops.. they sound great. The only cringeworthy element is a cold start when the revs rise up and settle down, that is loud and I assume my neighbours aren't happy with that.

VailM3 · 03-25-2013, 11:56 AM

Quote:

Originally Posted by ManiacGT

There's little difference when driving at speed. A bit more 'boom' when pushing the throttle in high gears. Its at low speeds its much louder. Especially on the DCT with the overrun pops.. they sound great. The only cringeworthy element is a cold start when the revs rise up and settle down, that is loud and I assume my neighbours aren't happy with that.

glad mine is in an underground lot for the building, i am sure it will resonate quite a distance in there on cold starts.

ZheHbKa · 03-25-2013, 12:45 PM

Quote:

Originally Posted by ManiacGT

The flap has no effect on anything, despite all the 'true/fact' guesswork you may read about it, on anything other than the sound.

BMW placed this flap on the exhaust to quieten it down at startup and prevent drone. I've disabled mine long ago, no difference to anything other than its louder.

+1

VailM3 · 03-25-2013, 02:18 PM

So just tried it i could easily cover the hose but the valve, there is NO way a golf tee could fit in the metal valve portion. What other options to cover the value? Only I can think of is a rubber hose with an end cover.

ManiacGT · 03-25-2013, 02:42 PM

I just popped a small screw in the hose... its thread stops it moving and its enough to block the vacuum.

rking117 · 03-25-2013, 03:37 PM

i think there is a way to unplug it in the trunk too. not on the ground at all. My 1 is that way and i just popped open the trunk and disconnected the connecter to the value there and put the carpet back. it was on the left hand side of the car facing the front. not sure if it is doable in the z or not but worth trying.

My Z doesnt have the flap so i cannot tell you for sure.

rking117 · 03-25-2013, 03:39 PM

Quote:

Originally Posted by VailM3

So just tried it i could easily cover the hose but the valve, there is NO way a golf tee could fit in the metal valve portion. What other options to cover the value? Only I can think of is a rubber hose with an end cover.

most buy a little hose i think and plug it unto the valve then insert the tee or screw

army_men · 03-25-2013, 03:49 PM

I cut a piece of soft eraser. and used that to block the metal value portion. after a year it's still on there. just dirty.

VailM3 · 03-26-2013, 01:50 PM

Round 2 and this time its done. I was at the store and couldn't find anything to cover the plugs well until I stumbled into the needle and thread section. Low and behold I found a great option. Milward stich stopper comes with 4 stoppers that were designed for needs. Perfect they are hard plastic that that comes with 1 large 1 medium and 2 small stoppers.

The large one fits the metal valve piece perfectly while the medium covers the plastic pipe value piece perfectly. Since its mad of very hard yet flexable plastic it made a really tight seal and im not worried about heat on these 2 pieces.

Started it up in the underground garage and the difference is instantaneous. Nice deep and noticeable louder note on coldstart deep base on the 35iS stock exhaust. Looking forward to driving it on the 300 mile road trip for easter weekend to Monaco. 3 days 2 nights on the french Rivera, albeit a crisp weather Rivera.

BMWZ4RIDER · 03-27-2013, 03:04 PM

I just read the Thread.
I just looked under the right muffler on the Z and the value and rubber hose are there and connected.
What does this valve do?
With the Z not running the valve is in the down position and assumed closed and can be pushed up or opened manually.
When running I am assuming that the hose is a vaccum hose and opens the Valve? ONLY when Running At Speed?
Disconnecting the vacuum hose will leave this valve closed and make the sound louder?
Also confirm you must plug both the hose size and the valve side?
Thanx in advance for answering my questions.

ManiacGT · 03-27-2013, 03:14 PM

Quote:

Originally Posted by BMWZ4RIDER

I just read the Thread.
I just looked under the right muffler on the Z and the value and rubber hose are there and connected.
What does this valve do?
With the Z not running the valve is in the down position and assumed closed and can be pushed up or opened manually.
When running I am assuming that the hose is a vaccum hose and opens the Valve? ONLY when Running At Speed?
Disconnecting the vacuum hose will leave this valve closed and make the sound louder?
Also confirm you must plug both the hose size and the valve side?
Thanx in advance for answering my questions.

There are many many posts on here and the entire internet on this. Use Search.

z4z4z4 · 03-27-2013, 03:28 PM

Here's a pic to save your knees.

BMWZ4RIDER · 03-27-2013, 07:45 PM

Thanx for the picture
I took the thread recommendation and did a search with many results found for many answers to my questions.
The question I did not see answered is there a need to plug the valve side, even if just to keep dirt out of it?

VailM3 · 03-28-2013, 01:22 AM

Quote:

Originally Posted by BMWZ4RIDER

Thanx for the picture
I took the thread recommendation and did a search with many results found for many answers to my questions.
The question I did not see answered is there a need to plug the valve side, even if just to keep dirt out of it?

You need to plug it to keep dirt out. Its a cylonoid. Getting dirt in there will (if enough gets in) block or disable the value completely. Strongly urged to block it. You can go to homedepot and ask them for valve cover caps work perfectly. I found a solution in a different manner as above but works like a charm.

ManiacGT · 03-28-2013, 04:55 AM

Quote:

Originally Posted by VailM3

Its a cylonoid.

I've not seen that underneath?

Or did you mean solenoid?

Which it isn't, its a vacuum actuator.

VailM3 · 03-28-2013, 05:07 AM

Quote:

Originally Posted by ManiacGT

I've not seen that underneath?

Or did you mean solenoid?

Which it isn't, its a vacuum actuator.

Good call, sorry my English isn't the best these days as the natives, but now I am thinking maybe some battle star galactica this weekend.

ManiacGT · 03-28-2013, 06:22 AM

No need to apologise, it made me laugh.

BMWZ4RIDER · 03-28-2013, 06:40 AM

Thanx to all. This is my next 3 minute mod.

03-25-2013, 10:22 AM	#1
VailM3 Captain 61 Rep 766 Posts Drives: 2011 Z4 35is Join Date: Jan 2013 Location: Geneva Switzerland iTrader: (0)	Golf tee without a jack? So going to do this finally to the Z. (i search) I know its on the right exhaust can as you look at the Z from the rear. Is it possible to disconnect and plug without lifting the car: Mine is in an underground lot and dont have access to a jack without heading to a shop of sorts. I was planning on disconnecting those those and plugging it as it would be easier to connect than cutting off a ziptie. Also is gas mileage really affected by this due to lack of back pressure?
	Appreciate 0 Tweet Quote

03-25-2013, 10:35 AM	#2
army_men Lieutenant 45 Rep 406 Posts Drives: E89 Z4 35i Join Date: Jan 2012 Location: Canada iTrader: (0) Garage List 2011 BMW Z4 35i [10.00]	yes. i put a rug on the ground and lay down next to the exhaust tip. it's quite easy to find the S shaped hose, u don't even need to get your face dirty. I don't know about backpressure. I haven't noticed any change in gas mileage, mine is steady below 11L/100km ever since day 1. I don't believe in back pressure on this turbo car. I think it's a myth, but people are welcome to prove otherwise. I'm open ears. __________________
	Appreciate 0 Quote

03-25-2013, 10:45 AM	#3
ManiacGT Major 85 Rep 1,448 Posts Drives: Z4 sDrive 35i Join Date: Jan 2011 Location: Manchester, UK iTrader: (0)	The flap has no effect on anything, despite all the 'true/fact' guesswork you may read about it, on anything other than the sound. BMW placed this flap on the exhaust to quieten it down at startup and prevent drone. I've disabled mine long ago, no difference to anything other than its louder.
	Appreciate 0 Quote

03-25-2013, 11:40 AM	#5
ManiacGT Major 85 Rep 1,448 Posts Drives: Z4 sDrive 35i Join Date: Jan 2011 Location: Manchester, UK iTrader: (0)	There's little difference when driving at speed. A bit more 'boom' when pushing the throttle in high gears. Its at low speeds its much louder. Especially on the DCT with the overrun pops.. they sound great. The only cringeworthy element is a cold start when the revs rise up and settle down, that is loud and I assume my neighbours aren't happy with that.
	Appreciate 0 Quote

03-25-2013, 02:18 PM	#8
VailM3 Captain 61 Rep 766 Posts Drives: 2011 Z4 35is Join Date: Jan 2013 Location: Geneva Switzerland iTrader: (0)	So just tried it i could easily cover the hose but the valve, there is NO way a golf tee could fit in the metal valve portion. What other options to cover the value? Only I can think of is a rubber hose with an end cover.
	Appreciate 0 Quote

03-25-2013, 02:42 PM	#9
ManiacGT Major 85 Rep 1,448 Posts Drives: Z4 sDrive 35i Join Date: Jan 2011 Location: Manchester, UK iTrader: (0)	I just popped a small screw in the hose... its thread stops it moving and its enough to block the vacuum.
	Appreciate 0 Quote

03-25-2013, 03:37 PM	#10
rking117 Lieutenant Colonel 118 Rep 1,668 Posts Drives: Z4 3.0i & 320i Join Date: Aug 2012 Location: USA iTrader: (0)	i think there is a way to unplug it in the trunk too. not on the ground at all. My 1 is that way and i just popped open the trunk and disconnected the connecter to the value there and put the carpet back. it was on the left hand side of the car facing the front. not sure if it is doable in the z or not but worth trying. My Z doesnt have the flap so i cannot tell you for sure. __________________ Enjoying an E89 Z4, F30 320i and Fiat Abarth // E85 Z4 (sold), E82 128i (sold), Fiat Pop 500 (sold)
	Appreciate 0 Quote

03-25-2013, 03:49 PM	#12
army_men Lieutenant 45 Rep 406 Posts Drives: E89 Z4 35i Join Date: Jan 2012 Location: Canada iTrader: (0) Garage List 2011 BMW Z4 35i [10.00]	I cut a piece of soft eraser. and used that to block the metal value portion. after a year it's still on there. just dirty. __________________
	Appreciate 0 Quote

03-26-2013, 01:50 PM	#13
VailM3 Captain 61 Rep 766 Posts Drives: 2011 Z4 35is Join Date: Jan 2013 Location: Geneva Switzerland iTrader: (0)	Round 2 and this time its done. I was at the store and couldn't find anything to cover the plugs well until I stumbled into the needle and thread section. Low and behold I found a great option. Milward stich stopper comes with 4 stoppers that were designed for needs. Perfect they are hard plastic that that comes with 1 large 1 medium and 2 small stoppers. The large one fits the metal valve piece perfectly while the medium covers the plastic pipe value piece perfectly. Since its mad of very hard yet flexable plastic it made a really tight seal and im not worried about heat on these 2 pieces. Started it up in the underground garage and the difference is instantaneous. Nice deep and noticeable louder note on coldstart deep base on the 35iS stock exhaust. Looking forward to driving it on the 300 mile road trip for easter weekend to Monaco. 3 days 2 nights on the french Rivera, albeit a crisp weather Rivera.
	Appreciate 0 Quote

03-27-2013, 03:04 PM	#14
BMWZ4RIDER BMWZ4Rider 68 Rep 801 Posts Drives: 2009 BMW Z4 35i Join Date: Dec 2012 Location: Cape Cod, MA iTrader: (0)	I just read the Thread. I just looked under the right muffler on the Z and the value and rubber hose are there and connected. What does this valve do? With the Z not running the valve is in the down position and assumed closed and can be pushed up or opened manually. When running I am assuming that the hose is a vaccum hose and opens the Valve? ONLY when Running At Speed? Disconnecting the vacuum hose will leave this valve closed and make the sound louder? Also confirm you must plug both the hose size and the valve side? Thanx in advance for answering my questions. __________________ 2009 BMW Z4 35i/SMG/DCT/Premium,Cold, Sound PK/Com Acc/Ash/PDC/Wind Deflector/Smoked Reflectors/Red Calipers/Cl Mask/M Series Grill/6000K LED's/De-Badged/M Pedals/CF Mirrors-Engine Cover/Stubby/20% Tint/H8 LED's/LCI Side Markers/Sniper Sprint Spoiler/VMR V710/H&R Sport Springs/KN.
	Appreciate 0 Quote

03-27-2013, 03:28 PM	#16
z4z4z4 Lieutenant 45 Rep 547 Posts Drives: 2002 M3 Join Date: Mar 2010 Location: mild mediterranean breezes iTrader: (1)	we grovel on the ground too much Here's a pic to save your knees. __________________ Sold 2011 Z4, kept 2002 M3 PM for various e89 parts 4sale. Last edited by z4z4z4; 02-04-2015 at 01:39 AM..
	Appreciate 0 Quote

03-27-2013, 07:45 PM	#17
BMWZ4RIDER BMWZ4Rider 68 Rep 801 Posts Drives: 2009 BMW Z4 35i Join Date: Dec 2012 Location: Cape Cod, MA iTrader: (0)	Thanx for the picture I took the thread recommendation and did a search with many results found for many answers to my questions. The question I did not see answered is there a need to plug the valve side, even if just to keep dirt out of it? __________________ 2009 BMW Z4 35i/SMG/DCT/Premium,Cold, Sound PK/Com Acc/Ash/PDC/Wind Deflector/Smoked Reflectors/Red Calipers/Cl Mask/M Series Grill/6000K LED's/De-Badged/M Pedals/CF Mirrors-Engine Cover/Stubby/20% Tint/H8 LED's/LCI Side Markers/Sniper Sprint Spoiler/VMR V710/H&R Sport Springs/KN.
	Appreciate 0 Quote

03-28-2013, 06:22 AM	#21
ManiacGT Major 85 Rep 1,448 Posts Drives: Z4 sDrive 35i Join Date: Jan 2011 Location: Manchester, UK iTrader: (0)	No need to apologise, it made me laugh.
	Appreciate 0 Quote

03-28-2013, 06:40 AM	#22
BMWZ4RIDER BMWZ4Rider 68 Rep 801 Posts Drives: 2009 BMW Z4 35i Join Date: Dec 2012 Location: Cape Cod, MA iTrader: (0)	Thanx to all. This is my next 3 minute mod. __________________ 2009 BMW Z4 35i/SMG/DCT/Premium,Cold, Sound PK/Com Acc/Ash/PDC/Wind Deflector/Smoked Reflectors/Red Calipers/Cl Mask/M Series Grill/6000K LED's/De-Badged/M Pedals/CF Mirrors-Engine Cover/Stubby/20% Tint/H8 LED's/LCI Side Markers/Sniper Sprint Spoiler/VMR V710/H&R Sport Springs/KN.
	Appreciate 0 Quote