[SCCThree]

Originally Posted by ///ADMAN

BMW actually makes a bike carrier. I asked my dealer about it since I saw they were being discontinued and were being offered at 1/2 off. They said they have never installed one because of the price and the modification that needed to be done on the bumper. Basically, they have to drill out spots on the rear beam and then add pop-off covers to both sides of the rear facia. Install was something like $1,500.00 alone.

Ouch. Thats not going to fly.
Thanks for the info. I think I should just put a hitch on the ol lady's Accord!

[moveswiftly]

Would a large size 3.46 Bolted Diff (Full pumpkin) work on a 2012 335iS with a manual transmission? I'm under the impression that the size of the differential (large v. small) determines whether it will be compatible.

[bungo]

Just noticed my oil level has dropped about a quarter from the Max line.

The car has only 44,000km on it and it's only been 10,000km since BMW changed the oil. Just wondering if anyone else has noticed any similar issues / problems. Hopefully this isn't the start of something

[SUHleen]

BMW's typically burn some oil. On my e46, it was about 1 quart every 1000 miles. On the e9x I've noticed its usually about 1 quart every 3-5k miles. You should be alright unless you see it drop VERY quickly/smoke a lot

[SGe92is]

I have about 5k since I bought it, and I have had to add 1 qt twice, the most recent being today. Dealer said it's normal.

[///ADMAN]

+1 on being normal. I'm at 24K miles and have had to stop by the dealership to top off my oil 4 or 5 times now.
I thought that was rather strange too. Good reason to add a catch can, I guess. Where is the best spot on N54?

[BMOEW]

Anybody know the part number for the paddle shifters on the 335Is?

[BMOEW]

Bump

[Kid Eh]

Originally Posted by BMOEW

Anybody know the part number for the paddle shifters on the 335Is?

61319241800

[SQ5]

Going to the drag strip tomorrow. Going to test out if if the Sport button really activates the overboost or if the car will overboost in at state.

[SCCThree]

Originally Posted by 2013GTR

Going to the drag strip tomorrow. Going to test out if if the Sport button really activates the overboost or if the car will overboost in at state.

Sweet! Let us know how it goes.

[///ADMAN]

Huh? Overboost is always active regardless of the drive mode.

[SQ5]

Originally Posted by ///ADMAN

Huh? Overboost is always active regardless of the drive mode.

How do you know for sure? Have you done testing?

[///ADMAN]

Originally Posted by 2013GTR

How do you know for sure? Have you done testing? Please provide proof other than your word.

[///ADMAN]

Oh, and here is Launch Control. But, I doubt you'll be able to pull that off every time at the Drag Strip. It doesn't always activate and is hard to time if you are already staged in the box. Plus, it's faster to "double stage" the launch - as some people call it. You can look up those videos here on the forum. I also got better traps times and better trap speeds - feathering the throttle on my own leaving it in AT and SPORT/SPORT. But, I also left a lot more rubber on the track in the process.

Most people don't get this video because all they see is the RMP and SPEEDO stall during launch. But, the point of the footage outside is the fact that I had no smokey burnout and left hardly any rubber on the pavement - regardless of what the ECM is doing to the engine and tranny at the time. That is the point of launch control.

I still get 0-60 in 4.8 - which is faster than you can do on your own regardless of the drive mode.

[SQ5]

Adman, how are those videos proof?

Some say it's only active when the sport button is pressed.

If someone could use the BT tool to log boost with the button pressed and not that would be great.

[Kid Eh]

Originally Posted by 2013GTR

How do you know for sure? Have you done testing? Please provide proof other than your word.

What's a 335is M Sport by the way? No such thing. It's a 335is.

[SQ5]

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[BMOEW]

Originally Posted by Kid Eh

61319241800

Can you not just get paddles them self without the switches?

[///ADMAN]

Originally Posted by 2013GTR

Why would you make a statement like that unless you proved it one way or another?

I thought in my first video I had the boost gauge set to my gas gauge sweep. If not, my bad. I think that video was all about AutoTune MAP5. You can CLEARLY see when you are in overboost with the JB4/Cobb/Procede/Dinan setup that way - as long as you disable the CAN - essentially putting it back to stock mode MAP0. Otherwise, you eliminate overboost altogether running a custom tune. I would hit approximately 14psi before dropping back to 11psi. Depends on the RPM, gear, temp, ECM, etc. Not sure what all BMW Engineering put into the algorithm. I think that's why the car hesitates every now and then when dropping from 7th to 5th or 6th to even 3rd. There is a lot for the ECM to measure.

I thought the boost sweep was kinda cheesy on the analog gauge. Nonetheless, I saw overboost activated in every drive mode with the PNP. I no longer have my JB4. So, someone else will have to video that for you. Or like you said, take your car to a dyno shop and post up your findings.

That way, you can be right and show us the proof.

[/unsubscribed]

[///ADMAN]

Originally Posted by KevinJ

The 335i has a turbo overboost of 8.7 PSI. The 335is ups this to 14.5 for (7-10 seconds). Recall that the 335i has a nominal boost of 5.5psi with a max of 8.7psi. The 335is has a nominal of 11.6 with a max of 14.5.

The overboost happens under certain load conditions or such as sudden or hard acceleration. Further reports that emphasize this: "temporary peak torque of 370 lb-ft is available under special high-load circumstances, such as when overtaking at higher speeds." Under load the boost is upped from 11.6 to 14.5 in higher gears for up to 7-10 seconds.

Further according to BMWUSA.com "electronically-controlled overboost function to briefly increase torque under full load by another 37 lb-ft.". According to BMW the temporary 37ft lb torque is delivered through the "standard turbo boost function".


"The 335is comes packing 320hp at 5,900 rpm and 332lb-ft of torque is available from 1,500-5,000 rpm. The engineers have tweaked the twin-turbo 3-liter motor to have an overboost function that increases torque to 370lb-ft. The overboost function comes into play at higher engine speeds and gears, similar to that of the Z4 sDrive35is."

The early reports of the 335is said 7 second overboost reported by BMW. There are a few other reports of 10 seconds of overboost.

You can see the overboost on the torque dyno below. It would be nice for someone to hack it so it boosts to redline!

.

[SQ5]

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