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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 > Dont use 91 octane on 100% across the board on V2!!



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      10-20-2007, 04:56 AM   #1
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Dont use 91 octane on 100% across the board on V2!!

I decided to do 100% accross the board for the torque selection for the V2 and i induced knock. Car was hellla faster than the other settings but you need higher than 91 octane to not have any problems. After about 4K RPM's you will have power cut out and here a click click click and the rpm's just hang out for a little while untill you let off throttle. This is under full throttle. Just thought id let you guys know so you dont make the same mistake i have made. Everything works perfect now that i used the settings that the map came with. I talked to the people at vishnu and they said if you use 100 octane or like the other guy using 93 octane or above you will be perfectly fine. BTW. I Smoked my friends m6 . Did the race 3 times up to 100 and i had 5-7 car lengths on him and pulling haha. Will post videos when he sends them to me. He was in M mode and very mad lol.
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      10-20-2007, 05:00 AM   #2
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nice kill on the M6! he may have pulled on you if you went to higher speeds though. thank god you only went up to 100
thanks for the heads up! really helps us cali people
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      10-20-2007, 05:23 AM   #3
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Thanks for the info !

- Eugen
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      10-20-2007, 05:23 AM   #4
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We have 92 octane out here...
you guys think that would be good enough for a higher torque setting?
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      10-20-2007, 05:26 AM   #5
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Quote:
Originally Posted by jmramos44 View Post
We have 92 octane out here...
you guys think that would be good enough for a higher torque setting?
Nope. Just a higher safety margin.
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      10-20-2007, 05:38 AM   #6
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I am very happy that we slowly get a full picture about V2. There will be those hot summer days again when our engines tend to knock more than it has happened this night.

IMO

- 91 octane AKI ( 95-96 octane RON ) is the minimum requirement where you should be careful to don't get bad gas.

- 93 octane AKI ( 97-98 octane RON ) and the PROcede V2 predefined torque settings is a very safe and powerful combination.

- 100% across the board seems to be safe with 96 octane AKI or race gas ( 100-101+ octane RON ).

A more efficient FMIC will help in addition.


BTW, the standard V2 settings work perfect for me. I use them with Shell V-Power 100 octane ( RON ) gas. It's good to know that I could use 95-96 octane RON as well not getting into any troubles e.g. when I am not able to get the usual gas quality. The higher octane rating provides a higher safety margin and more power to me. I like to be on the bullet-proof safe side, when it comes to my car's engine tuning .

- Eugen

Last edited by e.n335; 10-20-2007 at 07:47 AM.. Reason: more infos
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      10-20-2007, 06:12 AM   #7
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Congrats on the win but did the M6 you ran look like this ?

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      10-20-2007, 06:13 AM   #8
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very weird... I assume shiv runs his car on the same shitty cali 91 that we get here in LA, and his map is even more aggressive than the v2.0.1 is out now.
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      10-20-2007, 06:15 AM   #9
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I believe the M6 and a PROcede V2 335i can be a drivers race.
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      10-20-2007, 06:17 AM   #10
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Quote:
Originally Posted by AB Tek 818 View Post
very weird... I assume shiv runs his car on the same shitty cali 91 that we get here in LA, and his map is even more aggressive than the v2.0.1 is out now.
Shiv says himself when you use 96 octane AKI you can use the 100% V2 torque settings across the board.
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      10-20-2007, 06:18 AM   #11
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Quote:
Originally Posted by e.n335 View Post
I believe the M6 and a PROcede V2 335i can be a drivers race.
yeah if the M6 driver has an IQ of 10.
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      10-20-2007, 06:19 AM   #12
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Quote:
Originally Posted by that guy nico View Post
yeah if the M6 driver has an IQ of 10.
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      10-20-2007, 06:20 AM   #13
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Quote:
Originally Posted by e.n335 View Post
I believe the M6 and a PROcede V2 335i can be a drivers race.
Me too! trust me but 5-7 car lengths seems a tad unreasonable unless he meant 5-7 1:18 scale replica car lengths that makes sense either that or the M6 owner stopped to get a cigarette. I think he may have been in front because I've done that too but not 5-7 car lengths! say something like on M5board you'll probably get a death threat lol
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      10-20-2007, 06:21 AM   #14
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Originally Posted by e.n335 View Post
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      10-20-2007, 06:21 AM   #15
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Quote:
Originally Posted by that guy nico View Post
yeah if the M6 driver has an IQ of 10.

There are some pretty bad drivers out there... or maybe the m6 was rolling on 87 octane
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      10-20-2007, 08:08 AM   #16
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Quote:
Originally Posted by SfValley335i View Post
There are some pretty bad drivers out there... or maybe the m6 was rolling on 87 octane
ha....I saw a guy this week doing just that! He was fueling up at Costco w/ 87 octane in his black M6. I wanted to go give him a beat down and take his car away from him. Idiot.
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      10-20-2007, 09:12 AM   #17
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Quote:
Originally Posted by e.n335 View Post
I am very happy that we slowly get a full picture about V2. There will be those hot summer days again when our engines tend to knock more than it has happened this night.

IMO

- 91 octane AKI ( 95-96 octane RON ) is the minimum requirement where you should be careful to don't get bad gas.

- 93 octane AKI ( 97-98 octane RON ) and the PROcede V2 predefined torque settings is a very safe and powerful combination.

- 100% across the board seems to be safe with 96 octane AKI or race gas ( 100-101+ octane RON ).

A more efficient FMIC will help in addition.


BTW, the standard V2 settings work perfect for me. I use them with Shell V-Power 100 octane ( RON ) gas. It's good to know that I could use 95-96 octane RON as well not getting into any troubles e.g. when I am not able to get the usual gas quality. The higher octane rating provides a higher safety margin and more power to me. I like to be on the bullet-proof safe side, when it comes to my car's engine tuning .

- Eugen

Very interesting Eugen. I thought the map setting were not to be connected to the gas used, but to the user's preference and to the transmission used.

Are you sure that with 93 oct US(98 EU) knock could still be induced?

I ask because in Italy there is Vpower (100 oct) and a 98 octanes of another brand that is sometime the one I end up using (no shell station available).
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      10-20-2007, 10:18 AM   #18
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Shiv's car is 6mt and exhaust. Perhaps the 100% settings work well with exhaust and 91 but not well with stock ehaust. Or it could be your aftermsrket Intake may have something to do with it.
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      10-20-2007, 10:36 AM   #19
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Quote:
Originally Posted by pushok132 View Post
I decided to do 100% accross the board for the torque selection for the V2 and i induced knock.
Are you sure it was knock?
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      10-20-2007, 10:39 AM   #20
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V1.47 with M6 will go neck to neck until around 110 or something like that. My buddy always goes "forgot to push the ///M button" - jokingly of course.

it's time for V2 i guess, time to beat the E63 now
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      10-20-2007, 10:47 AM   #21
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A stock BMW M6 (and M5) makes 315-320 ft-lb torque, 420-430 rwhp on a Dynojet. M6 curb weight is 3770 lb. At slow speeds the v2 335i will pull past the M6, then the M6 will start to catch up and then start passing the v2 335i at about 110MPH. Just look at all of the 1/4 mi timeslips on dragtimes.com.

What is interesting is that road courses don't provide much high-speed time - the v2 335i would kill the M6/M5 in such an environment.
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      10-20-2007, 10:53 AM   #22
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unless it was a m6 vert. V2 should pull easilly
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