Cannot find the Golf Tee Mod for 335i

speedytobey · 11-09-2007, 12:46 PM

what i meant is plugging the tube at the trunk end and not disconnecting the power.

HyperM3 · 11-09-2007, 12:52 PM

Quote:

Originally Posted by speedytobey

what i meant is plugging the tube at the trunk end and not disconnecting the power.

Honestly, its easier to get under the car and do it in 30 seconds than it is to contort your hands in the rear light assembly. Plus, I dont think the tube actually goes up that far, its all electricals in there.

speedytobey · 11-09-2007, 02:59 PM

ok thx for the info

Beer Goggles · 11-20-2007, 07:24 PM

The video of the mod is a little flawed since the camera is in front of a closed port then in front of an open one..no kidding it will be louder in front.

This really should only make the car seem louder when it would be normally closed, which I can hear it open when accelerating.

bman5150 · 11-21-2007, 11:40 AM

Quote:

Originally Posted by Beer Goggles

This really should only make the car seem louder when it would be normally closed, which I can hear it open when accelerating.

That's kinda what I was thinking. So, pretty much at cruise and idle is probably the only differnce since I'm assuming that's when the valve closes.

Do you know if the valve closes again at any other points (in particular at any rpm at WOT)?

HyperM3 · 11-21-2007, 11:42 AM

Quote:

Originally Posted by bman5150

Do you know if the valve closes again at any other points (in particular at any rpm at WOT)?

Technically if youre at WOT it shouldnt close.

bman5150 · 11-21-2007, 11:45 AM

Quote:

Originally Posted by HyperM3

Technically if youre at WOT it shouldnt close.

That's what I figured. I just wondered if perhaps BMW had it close again at WOT to manage the sound levels in the upper rpm band. If it did close, I would expect a major difference in volume that would be quite noticeable under high rpm /wot runs. I've never heard/read about this to be the case, so it must be closed only at idle and part-throttle applications.

orientblue3 · 11-22-2007, 07:34 PM

So have we determined using a BB would work the same as the 7/32 ball bearing? Or are people saying its too small?

Orb · 11-22-2007, 08:07 PM

Quote:

Originally Posted by orientblue3

So have we determined using a BB would work the same as the 7/32 ball bearing? Or are people saying its too small?

A 5/32" ball moved when I had moister in the line during a test. Use a 7/32” ball and you’re done and there eaaier to find. Having a perfect hose seal with ensure that you have zero rattles. The unplug solenoid method and small leaks in golf tee or the like will cause rattles.

If just happen to be a fluke that by plugging the valve hose will put a load on it so it keeps it quiet.

Orb

HyperM3 · 11-22-2007, 08:42 PM

Quote:

Originally Posted by orientblue3

So have we determined using a BB would work the same as the 7/32 ball bearing? Or are people saying its too small?

BB is probably too small but I used an airsoft plastic bb and its diameter is a bit larger. It fit nice and tight and has been working great for the past 3 months.

orientblue3 · 11-22-2007, 08:46 PM

Quote:

Originally Posted by HyperM3

BB is probably too small but I used an airsoft plastic bb and its diameter is a bit larger. It fit nice and tight and has been working great for the past 3 months.

I think I have those! I will try that now. Thanks.

greentea335i · 11-23-2007, 07:00 PM

http://www.vxb.com/page/bearings/PROD/5mm/Kit7470
is this the right size for this MOD??

livnlegacy · 11-23-2007, 07:24 PM

7/32 is the ball bearing size for this mod

^for those that can't take/don't have the time to read thru the existing multiple posts about this.

orientblue3 · 11-23-2007, 08:25 PM

The airsoft BB worked perfectly. Just FYI for those who have them around the house.

bmwzimmer · 11-26-2007, 10:24 AM

Tried this over the weekend. Anyone notice slightly better mileage? Under freeway conditions, I went from 27mpg stock to 27.5-28mpg with V2.01 to 28-29mpg this morning with V2 + golf tee mod.
All conditions are based on cruising on the freeway at 75 mph first before resetting the meter during my 20 mile commute to work. During these mileage tests, I drive like I would with my 80+ year old Grandma in the car...
It was 52 degrees this morning vs. my test last week with V2.01 where it was 60 in the morning... This was the only difference. Traffic was the same in all 3 cases (Almost zero traffic).

Anyways, I'm thinking under little load, having both exhausts flow freely without the flaps, and the addition of V2 helps a tad bit.

STi2Three35i · 12-03-2007, 09:50 AM

Just picked up my jet black 335i coupe on Saturday and already completed the mod. Does anyone know if this deletes back pressure thus decreasing turbo spool. One of my friends told me this and worried me a little

HyperM3 · 12-03-2007, 09:52 AM

Quote:

Originally Posted by STi2Three35i

Just picked up my jet black 335i coupe on Saturday and already completed the mod. Does anyone know if this deletes back pressure thus decreasing turbo spool. One of my friends told me this and worried me a little

What does your friend drive and what is he basing his knowledge on?

Bimmer335i07 · 12-03-2007, 09:57 AM

Quote:

Originally Posted by STi2Three35i

Just picked up my jet black 335i coupe on Saturday and already completed the mod. Does anyone know if this deletes back pressure thus decreasing turbo spool. One of my friends told me this and worried me a little

Quote:

Originally Posted by HyperM3

What does your friend drive and what is he basing his knowledge on?

+1

If anything, I would think that it would have the opposite affect and increase the turbo spool.

STi2Three35i · 12-03-2007, 10:42 AM

Quote:

Originally Posted by HyperM3

What does your friend drive and what is he basing his knowledge on?

My cousin drives a B7 S4, but he knows his fair share about cars.

It sorta makes sense. - when the valve is closed it would restrict air pressure from being released- thus sending it back to the turbo.

I just want to make sure that I'm not hurting my car, and I'm sure thats the last thing anyone of us would want to do.

I remember watching a Top Gear episode of the M5, where they mention that the flaps are used to give a "better" exhaust tone.

HyperM3 · 12-03-2007, 10:54 AM

Quote:

Originally Posted by STi2Three35i

My cousin drives a B7 S4, but he knows his fair share about cars.

It sorta makes sense. - when the valve is closed it would restrict air pressure from being released- thus sending it back to the turbo.

I just want to make sure that I'm not hurting my car, and I'm sure thats the last thing anyone of us would want to do.

I remember watching a Top Gear episode of the M5, where they mention that the flaps are used to give a "better" exhaust tone.

First off, you arent hurting your car. The turbos on our cars are soooo small that they hardly have any need for backpressure to spool up. The miniscule amount of backpressure lost from this silly little valve is nothing. The only thing it does is open up the flow to both pipes from the mufflers. There are plenty of us running variations of the mod to no ill effects.

PiperD · 12-03-2007, 01:29 PM

... and IIRC, the valve opens under full throttle in stock form anyhow.

Dan335i · 12-03-2007, 03:30 PM

I had the mod for a couple of days and then returned to stock. The only thing i got out of it was a louder car when started up cold for a minute until the idle came down to 600.

11-09-2007, 12:46 PM	#265
speedytobey Second Lieutenant 11 Rep 204 Posts Drives: 2007 E92 335i Join Date: Mar 2007 Location: SoCal. iTrader: (0)	what i meant is plugging the tube at the trunk end and not disconnecting the power. __________________ E92 335i Graphite/ Grey poplar trim/ Black Dakota/ Sports/ Premium/ Auto/ Paddle/ Heated seats/ Nav/ Sat. Radio/ CA/ 19" V710/ Painted reflectors/ Rear fog light
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11-09-2007, 02:59 PM	#267
speedytobey Second Lieutenant 11 Rep 204 Posts Drives: 2007 E92 335i Join Date: Mar 2007 Location: SoCal. iTrader: (0)	ok thx for the info __________________ E92 335i Graphite/ Grey poplar trim/ Black Dakota/ Sports/ Premium/ Auto/ Paddle/ Heated seats/ Nav/ Sat. Radio/ CA/ 19" V710/ Painted reflectors/ Rear fog light
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11-20-2007, 07:24 PM	#268
Beer Goggles First Lieutenant 6 Rep 310 Posts Drives: 2007 335i E92, 6MT, Sport Join Date: Aug 2007 Location: Riverside, CA iTrader: (0)	The video of the mod is a little flawed since the camera is in front of a closed port then in front of an open one..no kidding it will be louder in front. This really should only make the car seem louder when it would be normally closed, which I can hear it open when accelerating.
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11-22-2007, 07:34 PM	#272
orientblue3 Captain 28 Rep 864 Posts Drives: RIP 335, Now P30 C63 Join Date: Sep 2007 Location: DFW iTrader: (2)	So have we determined using a BB would work the same as the 7/32 ball bearing? Or are people saying its too small?
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11-23-2007, 07:00 PM	#276
greentea335i Lieutenant 27 Rep 560 Posts Drives: E92 335i w/ SSTT Join Date: Nov 2007 Location: California iTrader: (0)	http://www.vxb.com/page/bearings/PROD/5mm/Kit7470 is this the right size for this MOD??
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11-23-2007, 07:24 PM	#277
livnlegacy Original Member 14 Rep 560 Posts Drives: Alpine E36 M3, 02 325iT Join Date: Sep 2007 Location: Austin, TX iTrader: (6) Garage List o7 E90 335i [0.00]	7/32 is the ball bearing size for this mod ^for those that can't take/don't have the time to read thru the existing multiple posts about this.
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11-23-2007, 08:25 PM	#278
orientblue3 Captain 28 Rep 864 Posts Drives: RIP 335, Now P30 C63 Join Date: Sep 2007 Location: DFW iTrader: (2)	The airsoft BB worked perfectly. Just FYI for those who have them around the house.
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11-26-2007, 10:24 AM	#279
bmwzimmer Major 35 Rep 1,084 Posts Drives: 335 Join Date: Jan 2007 Location: 91 octane states iTrader: (0)	Tried this over the weekend. Anyone notice slightly better mileage? Under freeway conditions, I went from 27mpg stock to 27.5-28mpg with V2.01 to 28-29mpg this morning with V2 + golf tee mod. All conditions are based on cruising on the freeway at 75 mph first before resetting the meter during my 20 mile commute to work. During these mileage tests, I drive like I would with my 80+ year old Grandma in the car... It was 52 degrees this morning vs. my test last week with V2.01 where it was 60 in the morning... This was the only difference. Traffic was the same in all 3 cases (Almost zero traffic). Anyways, I'm thinking under little load, having both exhausts flow freely without the flaps, and the addition of V2 helps a tad bit.
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12-03-2007, 09:50 AM	#280
STi2Three35i Second Lieutenant 53 Rep 264 Posts Drives: 2008 335i Coupe-J.Black/C.Red Join Date: Jun 2007 Location: Philly Burbs - Main Line iTrader: (0)	Just picked up my jet black 335i coupe on Saturday and already completed the mod. Does anyone know if this deletes back pressure thus decreasing turbo spool. One of my friends told me this and worried me a little
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12-03-2007, 01:29 PM	#285
PiperD Clutch pedal >> Dead pedal 18 Rep 709 Posts Drives: '11 e92 335is 6MT Join Date: Sep 2006 Location: GTA iTrader: (0) Garage List 2011 335is coupe [0.00] 2007 335i coupe [0.00]	... and IIRC, the valve opens under full throttle in stock form anyhow. __________________ In my garage: '11 e92 335is 6MT (05/10) SpGrey/CoralRed/GlacSlvr ExecPkg/NavPkg/19" 225M Retired: '07 e92 335i 6MT (12/06) SpklgGrpht/CoralRed/GreyPoplar Retired: '04 330Ci M-Sport 6MT SilverGrey/NaturalTan/MyrtleWood Retired: '00 328Ci 5MT SteelGrey/Grey/MyrtleWood Retired: '87 Pontiac Grand-Am 3AT White/Grey
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12-03-2007, 03:30 PM	#286
Dan335i Lieutenant Colonel 32 Rep 1,786 Posts Drives: 07 335i coupe 6MT,w/sp. pack. Join Date: Oct 2007 Location: orange county NY iTrader: (2)	I had the mod for a couple of days and then returned to stock. The only thing i got out of it was a louder car when started up cold for a minute until the idle came down to 600.
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