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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Vishnu New Firmware and Maps



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      07-07-2009, 07:56 PM   #89
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Quote:
Originally Posted by shiv@vishnu View Post
I know everyone is anxious but Please wait for documentation. Writing it now. Pretty easy to follow but quite a bit of info.

Shiv
good to hear!! Thank you! Shiv
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      07-07-2009, 08:10 PM   #90
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Anyone found with these new maps that they are getting severe hesitation around 3,300 rpm when the engine is cold? It nearly throws me through the windshield. I'm sure it's the new safety feature that prevents full power while the engine is cold, but my 335 is not liking it when the weather is really cold in the mornings. In the warmer afternoon it seems 90% okay.

It's winter here and this is the first time my car has had any issues with new maps, normally I upload and car runs as smooth as a baby with no 'adaptation' jitters. FYI, stg 1 @ 75% UT.
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      07-07-2009, 08:59 PM   #91
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Originally Posted by xsboost View Post
Anyone found with these new maps that they are getting severe hesitation around 3,300 rpm when the engine is cold? It nearly throws me through the windshield. I'm sure it's the new safety feature that prevents full power while the engine is cold, but my 335 is not liking it when the weather is really cold in the mornings. In the warmer afternoon it seems 90% okay.

It's winter here and this is the first time my car has had any issues with new maps, normally I upload and car runs as smooth as a baby with no 'adaptation' jitters. FYI, stg 1 @ 75% UT.
Surprising enough, just took the car for a boot and was in a rush. Driving fast but not super hard, major jerks when car is cold! Not liking that. Runs great once car warms up though!
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      07-07-2009, 09:18 PM   #92
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Quote:
Originally Posted by xsboost View Post
Anyone found with these new maps that they are getting severe hesitation around 3,300 rpm when the engine is cold? It nearly throws me through the windshield.
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Originally Posted by badass335 View Post
Surprising enough, just took the car for a boot and was in a rush. Driving fast but not super hard, major jerks when car is cold! Not liking that. Runs great once car warms up though!
Not good at all! Maybe best to hold off on loading these new ones til these kinks get ironed out!
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      07-07-2009, 09:48 PM   #93
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Ah.. found a little bug that only exists when you go full throttle with a cold engine. It was an engine cut we implemented early in the development process. Forgot to take it out This is why we are still in beta testing!

Should have a firmware update within a day or two. For now, you can keep running it. Just don't hammer on the engine when it is cold. No issue at all once you get even a little bit of heat into the oil.

Shiv
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      07-07-2009, 10:18 PM   #94
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Quote:
Originally Posted by shiv@vishnu View Post
Ah.. found a little bug that only exists when you go full throttle with a cold engine. It was an engine cut we implemented early in the development process. Forgot to take it out This is why we are still in beta testing!

Should have a firmware update within a day or two. For now, you can keep running it. Just don't hammer on the engine when it is cold. No issue at all once you get even a little bit of heat into the oil.

Shiv
Thanks Shiv! You are the man. Btw, I wasn't going full throttle. Probably 60-70%. had to get past some cars to make a turn ahead!
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      07-07-2009, 10:27 PM   #95
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Thanks Shiv! You are the man. Btw, I wasn't going full throttle. Probably 60-70%. had to get past some cars to make a turn ahead!
Yep.. 60-70% applied throttle will induce a brief period of actual full throttle at the throttle plate. That is what we used for the engine cut trigger

Shiv
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      07-07-2009, 10:31 PM   #96
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Quote:
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Thanks Shiv! You are the man. Btw, I wasn't going full throttle. Probably 60-70%. had to get past some cars to make a turn ahead!
Same here. No worries, thanks Shiv; after all that is why they are beta's!
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      07-08-2009, 10:58 AM   #97
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I assume the new user controllable features (ignition correction,...) are functional with Rev 1 Procede?
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      07-08-2009, 11:33 AM   #98
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I assume the new user controllable features (ignition correction,...) are functional with Rev 1 Procede?
Yes, although you will need an external logger (like the BT tool) to dial it in properly since Rev1 doesn't offer CANbus integration. And soon the Rev2 will automatically adjust the ign correction % and UT % based upon internal log data. So Rev1 users, even with a BT tool won't have access to these new features.

Shiv
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      07-08-2009, 11:52 AM   #99
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hey shiv, think you might post the documentation today?
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      07-08-2009, 12:57 PM   #100
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hey shiv, think you might post the documentation today?
Still working on it. It appears everything takes longer than I initially expected...lol.
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      07-08-2009, 01:32 PM   #101
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Shiv,
What settings do I set on my stage 3 map for race gas mixed 1/2 with sunoco 94. I think this race gas is leaded 120 or 126...going to the drag strip...i'm competely catless but the o2 sensors are still on the exhaust pipes?
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      07-08-2009, 01:58 PM   #102
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leaded race gas? get some unleaded 109octane
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      07-08-2009, 02:22 PM   #103
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leaded race gas? get some unleaded 109octane
I would but unavailable...leaded bad?
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      07-08-2009, 02:25 PM   #104
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I would but unavailable...leaded bad?
If you like your O2 sensors and would prefer not to replace, don't run leaded.
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      07-08-2009, 02:27 PM   #105
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i don't like their price when bought new at all i'm being convinced by someone i know that running half/half for a track day wouldn't damage them, true/not?
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      07-08-2009, 02:28 PM   #106
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i don't like their price when bought new at all i'm being convinced by someone i know that running half/half for a track day wouldn't damage them, true/not?
Will a mix imediately damage, most likely not. But it is still not good to do and can potentially cause issues with the sensors as well as the catalyst.
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      07-08-2009, 02:30 PM   #107
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...leaded bad?
Yes. Catalytic converters go bye-bye.
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      07-08-2009, 02:31 PM   #108
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i'm not running cats guys! the sensors are on though ..

Here is a list of race fuels available at the Cayuga, Ontario track

$1.80 94 Octane
$4.00 C12
$5.00 C14
$6.00 C16
$4.00 MS103
$4.00 VP Red
$6.00 Q16
$2.75 Meth

Are all of these leaded and which would you take? i have 94 sunoco at the pump here for almost half the price...
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      07-08-2009, 04:53 PM   #109
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Leaded gas doesn't matter to your cats, since your catless.

Leaded gas can muck with your O2 sensor, but you're not doing it that often. I've had all my past cars mix 91 octane + 110 leaded (at least 20 tanks worth - trackdays) and never had a problem. Its not a guarantee, but if you're only doing it handful of time, I don't see a problem.

(and the PROcede can be set to whatever setting to my your ECU happy with the cat status).

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      07-08-2009, 05:45 PM   #110
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I thought MS 103 is unleaded, I know at least MS 109 is.............Why not go with MS 103? I heard that's more stable than MS 109, don't know if it's true or not?
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