How to get Max Speed out of AT 335's?

ThickRhinoceros · 10-14-2018, 07:21 PM

Hey all. When driving my 335i, sometimes I notice I feel a bit slower flooring (not using kickback) the car rather than just maybe only pushing 3/4'ths of the pedal. I notice some people have said the same thing and just wanted to get some final clarification if this is anything or I'm just insane. Oddly enough, in general, sometimes my car feels slower than other times too which is also kind of weird.

Pladi · 10-15-2018, 09:12 AM

Yes this is very real and true. You should be glad this happens. The knock sensor is protecting the engine. The car will feel more sluggish at some throttle/load/gear conditions when the DME decided to pull ignition timing. To avoid this you should put best octane possible.

This is assuming you are not heavily modded with some stage 2 tune map... Which case things get more complicated.

ThickRhinoceros · 10-16-2018, 10:42 PM

I see, hmm, well I put in 91 everytime from Shell so not like I'm exactly putting weak gas in the car. And i'm currently stock, I guess I'll appreciate the system but it makes me wonder when I'm hitting the cars full potential.

TemjinX2 · 10-17-2018, 11:14 AM

could be just how the car responds going from hot weather 90-80s now to cooler weather 60-70s.

could also be your throttle adaption settings, you can try resetting it see if it makes a difference.

also if your on mhd, you can change it to a linear throttle map.

Pladi · 10-17-2018, 11:52 AM

Its California 91.. only a Canadian like me knows what your talking about. We have very bad gas.. 91 is ACN, its SHIT

Hot weather will make things worse. I notice that when its cold in Canada my car runs sooo much better. Alot more torque. Cold air is the best for engines.

Fritzer · 10-17-2018, 12:28 PM

California sucks for high octane. There is one gas station near me and they have 93 and 100 but for astronomical prices since it's in the nicest neighborhood in the county. Talking $7/$10 per gallon. :O

On second thought, considering 91 is now floating around $4.00/$4.20 per gallon, it's not that crazy. I miss $3 for a gallon of 91...

Pladi · 10-17-2018, 01:55 PM

Quote:

Originally Posted by Fritzer

California sucks for high octane. There is one gas station near me and they have 93 and 100 but for astronomical prices since it's in the nicest neighborhood in the county. Talking $7/$10 per gallon. :O

On second thought, considering 91 is now floating around $4.00/$4.20 per gallon, it's not that crazy. I miss $3 for a gallon of 91...

Same with us. We have 94 Octane but its very very expensive. Similar prices to what you describe.

The best would be E30. Would love to have that option.

A real option for us is Water Injection. Esp for California. No winter and you can only use water and drop the temp to the point where you wont see knock even at 15 + PSI never mind stock level.

tlow98 · 10-17-2018, 02:03 PM

Prolly like 160. Maybe 170.

I dunno

Pladi · 10-17-2018, 02:34 PM

Quote:

Originally Posted by tlow98

Prolly like 160. Maybe 170.

I dunno

Very helpful post hahahaha

Zajac1 · 10-17-2018, 04:49 PM

Quote:

Originally Posted by Fritzer

California sucks for high octane. There is one gas station near me and they have 93 and 100 but for astronomical prices since it's in the nicest neighborhood in the county. Talking $7/$10 per gallon. :O

On second thought, considering 91 is now floating around $4.00/$4.20 per gallon, it's not that crazy. I miss $3 for a gallon of 91...

Today in NJ shell VPower cost me 3.45per gallon

BM3Rrrr · 10-17-2018, 06:06 PM

Quote:

Originally Posted by ThickRhinoceros

Hey all. When driving my 335i, sometimes I notice I feel a bit slower flooring (not using kickback) the car rather than just maybe only pushing 3/4'ths of the pedal. I notice some people have said the same thing and just wanted to get some final clarification if this is anything or I'm just insane. Oddly enough, in general, sometimes my car feels slower than other times too which is also kind of weird.

What mode are you driving in? Drive/Sport/Manual??

Try driving manual and completely turn off DTC

ThickRhinoceros · 10-17-2018, 11:53 PM

Quote:

Originally Posted by BM3Rrrr

What mode are you driving in? Drive/Sport/Manual??

Try driving manual and completely turn off DTC

Well when I'm having fun I'm usually using DS mode with DTC off. To be honest I haven't felt what I described in the post for a while now actually for some reason. Seems to have same power all around now. But despite what you're recommending me to do, my main question still is whether or not flooring it (no kickdown) is better than pressing it maybe 3/4th's of the way or not. I've seen some people say that and I was pretty confused LOL

ThickRhinoceros · 10-17-2018, 11:55 PM

Quote:

Originally Posted by tlow98

Prolly like 160. Maybe 170.

I dunno

Alright, we found the answer, threads done everybody go home.

Unknown_Car · 10-18-2018, 12:03 AM

Quote:

Originally Posted by Fritzer

California sucks for high octane. There is one gas station near me and they have 93 and 100 but for astronomical prices since it's in the nicest neighborhood in the county. Talking $7/$10 per gallon. :O

On second thought, considering 91 is now floating around $4.00/$4.20 per gallon, it's not that crazy. I miss $3 for a gallon of 91...

Oww expencive man. I pay only $2.20 for e85 :-). But 93 here is i belive 3.10 and 91 is like 2.80.

Pladi · 10-18-2018, 08:06 AM

Quote:

Originally Posted by ThickRhinoceros

Alright, we found the answer, threads done everybody go home.

Have to admit though that your thread title is very misleading. Sounds like you are asking about the car's top speed..

ThickRhinoceros · 10-18-2018, 06:31 PM

Quote:

Originally Posted by Pladi

Have to admit though that your thread title is very misleading. Sounds like you are asking about the car's top speed..

LOL yeah tbh you're right. I fixed it

ThickRhinoceros · 10-18-2018, 06:34 PM

Quote:

Originally Posted by Zajac1

Today in NJ shell VPower cost me 3.45per gallon

That's so nuts.. it's $4.20 where I'm at in Cali

IllSic_Design · 10-18-2018, 06:44 PM

Quote:

Originally Posted by ThickRhinoceros

Well when I'm having fun I'm usually using DS mode with DTC off. To be honest I haven't felt what I described in the post for a while now actually for some reason. Seems to have same power all around now. But despite what you're recommending me to do, my main question still is whether or not flooring it (no kickdown) is better than pressing it maybe 3/4th's of the way or not. I've seen some people say that and I was pretty confused LOL

If you are in a higher gear(4/5/6) and are at a lower RPM(lugging/cruising) then no you shouldn't floor it, as it'll actually put more stress on the engine. Either downshift(which if you stomp the pedal to the floor it will automatically downshift because of the kickdown switch on the throttle pedal) or gradually press the throttle.

ThickRhinoceros · 10-18-2018, 10:56 PM

Quote:

Originally Posted by IllSic_Design

If you are in a higher gear(4/5/6) and are at a lower RPM(lugging/cruising) then no you shouldn't floor it, as it'll actually put more stress on the engine. Either downshift(which if you stomp the pedal to the floor it will automatically downshift because of the kickdown switch on the throttle pedal) or gradually press the throttle.

How do I know what gear I'm in while in dsmode tho? I should know depending on the speed? I assume just use kickdown on freeway but full throttle when not cruising on a freeway . When launching should I use kickdown?
Sorry for so many questions, only got into cars recently LMAO

BimmerNugget · 10-19-2018, 12:17 AM

Quote:

Originally Posted by Pladi

Its California 91.. only a Canadian like me knows what your talking about. We have very bad gas.. 91 is ACN, its SHIT

Can you explain? Why is his 91 gas shit? I thought 91 octane is 91 octane no matter where you go. I use BP 93 octane in my car.

BimmerNugget · 10-19-2018, 12:19 AM

Quote:

Originally Posted by Fritzer

California sucks for high octane. There is one gas station near me and they have 93 and 100 but for astronomical prices since it's in the nicest neighborhood in the county. Talking $7/$10 per gallon. :O

On second thought, considering 91 is now floating around $4.00/$4.20 per gallon, it's not that crazy. I miss $3 for a gallon of 91...

Wow that's crazy! $7/gallon for 93 octane? I fill up at BP near my house. $3.39 for 93 octane. 93 octane is plentiful around NYC, not sure why it's rare in Cali.

city1991 · 10-19-2018, 12:58 AM

Quote:

Originally Posted by BimmerNugget

Quote:

Originally Posted by Fritzer

California sucks for high octane. There is one gas station near me and they have 93 and 100 but for astronomical prices since it's in the nicest neighborhood in the county. Talking $7/$10 per gallon. :O

On second thought, considering 91 is now floating around $4.00/$4.20 per gallon, it's not that crazy. I miss $3 for a gallon of 91...

Wow that's crazy! $7/gallon for 93 octane? I fill up at BP near my house. $3.39 for 93 octane. 93 octane is plentiful around NYC, not sure why it's rare in Cali.

Can't get 93 octane in Iowa anymore. 91 is the top.

10-14-2018, 07:21 PM	#1
ThickRhinoceros New Member 3 Rep 24 Posts Drives: Black 335i E90 2009 Join Date: Oct 2018 Location: Hercules, California iTrader: (0)	How to get Max Speed out of AT 335's? Hey all. When driving my 335i, sometimes I notice I feel a bit slower flooring (not using kickback) the car rather than just maybe only pushing 3/4'ths of the pedal. I notice some people have said the same thing and just wanted to get some final clarification if this is anything or I'm just insane. Oddly enough, in general, sometimes my car feels slower than other times too which is also kind of weird. Last edited by ThickRhinoceros; 10-18-2018 at 06:32 PM..
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10-15-2018, 09:12 AM	#2
Pladi Lieutenant Colonel 718 Rep 1,753 Posts Drives: 2011 335i xdrive Join Date: Nov 2017 Location: Waterloo, ON Canada iTrader: (0)	Yes this is very real and true. You should be glad this happens. The knock sensor is protecting the engine. The car will feel more sluggish at some throttle/load/gear conditions when the DME decided to pull ignition timing. To avoid this you should put best octane possible. This is assuming you are not heavily modded with some stage 2 tune map... Which case things get more complicated.
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10-16-2018, 10:42 PM	#3
ThickRhinoceros New Member 3 Rep 24 Posts Drives: Black 335i E90 2009 Join Date: Oct 2018 Location: Hercules, California iTrader: (0)	I see, hmm, well I put in 91 everytime from Shell so not like I'm exactly putting weak gas in the car. And i'm currently stock, I guess I'll appreciate the system but it makes me wonder when I'm hitting the cars full potential.
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10-17-2018, 11:14 AM	#4
TemjinX2 Major 521 Rep 1,485 Posts Drives: 2008 335xi e92 Join Date: Dec 2009 Location: Socal OC iTrader: (0)	could be just how the car responds going from hot weather 90-80s now to cooler weather 60-70s. could also be your throttle adaption settings, you can try resetting it see if it makes a difference. also if your on mhd, you can change it to a linear throttle map.
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10-17-2018, 11:52 AM	#5
Pladi Lieutenant Colonel 718 Rep 1,753 Posts Drives: 2011 335i xdrive Join Date: Nov 2017 Location: Waterloo, ON Canada iTrader: (0)	Its California 91.. only a Canadian like me knows what your talking about. We have very bad gas.. 91 is ACN, its SHIT Hot weather will make things worse. I notice that when its cold in Canada my car runs sooo much better. Alot more torque. Cold air is the best for engines. Last edited by Pladi; 10-17-2018 at 11:59 AM..
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10-17-2018, 12:28 PM	#6
Fritzer No one sleep in Tokyo 945 Rep 1,507 Posts Drives: 2011 E90 328i//1995 E34 530i Join Date: Oct 2018 Location: San Diego, California -> Austin, Texas iTrader: (3)	California sucks for high octane. There is one gas station near me and they have 93 and 100 but for astronomical prices since it's in the nicest neighborhood in the county. Talking $7/$10 per gallon. :O On second thought, considering 91 is now floating around $4.00/$4.20 per gallon, it's not that crazy. I miss $3 for a gallon of 91... __________________ 2011 E90 328i, 1995 E34 530i, 1992 E32 740i, 1991 E34 525i
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10-17-2018, 02:03 PM	#8
tlow98 Major General 2185 Rep 5,000 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	Prolly like 160. Maybe 170. I dunno
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