[bboy8282]

I have a quick question for those that can help me out....from what i understand if we use 91 gas in Cali, Cobb prefers us to use "drive"...and for "sport" or "aggressive" we need to use a higher octane gas...how about NV...is it ok to run "sport" on their 91....asking because ill be headed to vegas and i kinda wanna get a feel for how sport and aggressive is like...my car is bone stock except for the Cobb AP

[rader1]

Originally Posted by bboy8282

I have a quick question for those that can help me out....from what i understand if we use 91 gas in Cali, Cobb prefers us to use "drive"...and for "sport" or "aggressive" we need to use a higher octane gas...how about NV...is it ok to run "sport" on their 91....asking because ill be headed to vegas and i kinda wanna get a feel for how sport and aggressive is like...my car is bone stock except for the Cobb AP

Does nevada use ACN 91 octane? If it's "real" 91 octane, try sport and see how the logs look.

[805beemer]

ACN stands for Arizona, california, nevada so unfortunetly there gas is just as shitty

[rader1]

I wasn't sure if it was nevada or new mexico. Either way, that shit sucks.

[Juicehead]

Rob....

Will the revised maps address the random wastegate cycling? At least that is what I have been told it is...

I can be crusing at a given RPM and throttle setting and suddenly the exhaust volume increases a few decibels and it pops like crazy on decel. This lasts for a good 30 seconds or so then returns to normal.

Please let us know as it gets fairly annoying.

[dfv2]

I love it when it does that!!

[azeemtn]

There may be a gas station near you in Nevada that has 100 octane, and you can run a mix to get to aggressive without any issues.

Here's a link even though it says socal

http://www.davebarton.com/Unleaded_Racing_Fuel_in_SoCal

[bboy8282]

Awesome...thanks for the help everyone

[RaihaX]

Originally Posted by Juicehead

Rob....

Will the revised maps address the random wastegate cycling? At least that is what I have been told it is...

I can be crusing at a given RPM and throttle setting and suddenly the exhaust volume increases a few decibels and it pops like crazy on decel. This lasts for a good 30 seconds or so then returns to normal.

Please let us know as it gets fairly annoying.

So that is what I have been getting

[Rob@Cobb]

Originally Posted by Juicehead

Rob....

Will the revised maps address the random wastegate cycling? At least that is what I have been told it is...

I can be crusing at a given RPM and throttle setting and suddenly the exhaust volume increases a few decibels and it pops like crazy on decel. This lasts for a good 30 seconds or so then returns to normal.

Please let us know as it gets fairly annoying.

Does the popping start when holding the throttle steady or after lifting off the throttle?

Cheers,
Rob

[Dr_Dirt]

I just heard that COBB is working on some street legal downpipes (race cats) that would be compatible with their stage 2 tune

[RaihaX]

Originally Posted by Rob@Cobb

Does the popping start when holding the throttle steady or after lifting off the throttle?

Cheers,
Rob

mine would change tone when holding the throttle steady and the popping/burbling would be during decel (lifting off).

[marv85]

Originally Posted by Dr_Dirt

I just heard that COBB is working on some street legal downpipes (race cats) that would be compatible with their stage 2 tune

really? I hope they start designing hardware for this platform

[Dr_Dirt]

Originally Posted by marv85

really? I hope they start designing hardware for this platform

I spoke to Calvin at their Plano shop today, while I scheduled my ETS IC installation for next week. I told him if there is a list for the DP and exhaust to put me on it

[rader1]

Rob's car is using in-house DPs.

[marv85]

Originally Posted by rader1

Rob's car is using in-house DPs.

cool! didn't know that

[marv85]

Originally Posted by Dr_Dirt

I spoke to Calvin at their Plano shop today, while I scheduled my ETS IC installation for next week. I told him if there is a list for the DP and exhaust to put me on it

I'll be installing my ETS at their local shop too

[Jeef]

Originally Posted by Rob@Cobb

If you would be so kind, grab the codes for me if this happens again. The 3100 code will be thrown if another system requests limp mode and cuts pressure. Meaning there might be something else tripping the 3100.

Cheers,
Rob

Thanks for the response Rob. The only code it threw on the AP was a 0FF(if i remember correctly) which is the boost leak code.

[BmwFanFL]

Warranty ending shortly and I'm keeping the car. Ordered today from Cobb -- they were very helpful on the phone. I couldn't justify the overnight charges, after waiting years to get a tune ;-) I'll post experiences soon.

How about a few new threads for Cobb and let this fade -- rather long. One for 50 daily posts asking about updates, others for questions/experiences, etc. Just sayin'

[markk132]

just bought a used '07 335xi sedan, has a cpo warranty and free maintenance until july 2013. planning to get the cobb AP but want to wait until i can get new spark plugs free from bmw (service said to come back in 800 miles and they can do them under my free maintenance, im at 40k miles). don't want to flash the tune on old plugs, seems like that will be trouble for sure. so i'll be enjoying the car and getting used to stock power, and hopefully cobb releases the new maps soon and when im ready to jump on the cobb bandwagon, the new tunes will be out and tested by many with good feedback. the timing is setting up real nice for me ...although i am a little confused with the whole stock throttle and linear throttle thing on all the different maps. but im in NJ so i'll definitely be going with the aggressive tune on 93 octane, but need more detailed information on the difference in the throttle..

also, this is a great forum, a lot of good info. thanks to everyone for informing me and teaching me new things about cars in general on a daily basis, SO informative

[skim7x]

Originally Posted by markk132

...although i am a little confused with the whole stock throttle and linear throttle thing on all the different maps... need more detailed information on the difference in the throttle..

http://www.e90post.com/forums/showthread.php?t=654069

[Brey335i]

Originally Posted by Dr_Dirt

I just heard that COBB is working on some street legal downpipes (race cats) that would be compatible with their stage 2 tune

Pretty sure that anything that modifies the stock catalytic converters is illegal according to federal emissions law. Although I could be wrong. But that's what I heard...