E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Stage 2 Sneak Peak



Reply
 
Thread Tools Search this Thread
      09-14-2011, 12:05 PM   #177
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

Quote:
Originally Posted by dzenno View Post
I know what you mean by marketing but in this case I'm pretty confident its not the case...i guess dynos will tell...and Ben's right, procede retards timing (CPS=100%) by 3-4 degrees on pump gas as well...but let's stay on topic of stage 2 otherwise this will get out of control again
The beauty of a flash tune is predictability, something piggybacks can't match. If stage 2 is as predictable as my experience with stage 1 is, I may not need more than what stage 2 provides.
__________________
E90 LCI N54 6AT
Appreciate 0
      09-14-2011, 03:02 PM   #178
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3441
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

MBT, however you get their depends on the platform. More boost? More Ignition. Time will tell.
Appreciate 0
      09-14-2011, 03:04 PM   #179
Pseudo Nim
twinborific
Pseudo Nim's Avatar
118
Rep
4,836
Posts

Drives: fast, sometimes slow
Join Date: Nov 2008
Location: i am a citizen of the world

iTrader: (9)

Quote:
Originally Posted by Jeff@topgearsolutions View Post
MBT, however you get their depends on the platform. More boost? More Ignition. Time will tell.
MORE POWERRRRRRRRRR
__________________
Doko ni itemo, hito wa tsunagatte iru...
Appreciate 0
      09-14-2011, 03:04 PM   #180
Joshboody
Lieutenant Colonel
65
Rep
1,708
Posts

Drives: pickemuptruck
Join Date: Jul 2009
Location: Phoenix, AZ

iTrader: (7)

I guess we'll get guys doing this with atr. Lower boost increase timing you're lowering egt and exhaust manifold pressure, offering more timing and even more boost in the top end. An FBO in mild weather can run almost 15psi with stock timing on 93... Just make the IAT corrections greater. Hell, lower coolant temp by 10, 20deg and you get further benefits... I hope they are doing this now... There's plenty of cooling capacity it seems anyway.

I know there's safety to consider, but you can detonate after TDC also.
Appreciate 0
      09-14-2011, 03:23 PM   #181
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

Quote:
Originally Posted by Joshboody View Post
I guess we'll get guys doing this with atr. Lower boost increase timing you're lowering egt and exhaust manifold pressure, offering more timing and even more boost in the top end. An FBO in mild weather can run almost 15psi with stock timing on 93... Just make the IAT corrections greater. Hell, lower coolant temp by 10, 20deg and you get further benefits... I hope they are doing this now... There's plenty of cooling capacity it seems anyway.

I know there's safety to consider, but you can detonate after TDC also.
Show me a log with no CPS at 15 psi without timing dropouts. Every log I've ever pulled without CPS shows at least 2-3 dropouts in a single 3rd gear pull at 15 psi.
__________________
E90 LCI N54 6AT
Appreciate 0
      09-14-2011, 03:29 PM   #182
woodga16
First Lieutenant
16
Rep
378
Posts

Drives: BMW 335i
Join Date: Mar 2011
Location: US

iTrader: (0)

This all sounds great. I might consider trying it if it had meth mapping.
Appreciate 0
      09-14-2011, 03:34 PM   #183
Joshboody
Lieutenant Colonel
65
Rep
1,708
Posts

Drives: pickemuptruck
Join Date: Jul 2009
Location: Phoenix, AZ

iTrader: (7)

Quote:
Originally Posted by themyst View Post
Show me a log with no CPS at 15 psi without timing dropouts. Every log I've ever pulled without CPS shows at least 2-3 dropouts in a single 3rd gear pull at 15 psi.
That maybe a little exagerated but I'm talking theory in general. The futher boost in increased the farther youre getting from peak pressure.
Appreciate 0
      09-14-2011, 03:40 PM   #184
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

I have no idea where you got this theory to begin with. The stock tune knocks under extreme conditions.
__________________
E90 LCI N54 6AT
Appreciate 0
      09-14-2011, 03:40 PM   #185
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3441
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

I'm not sure what you guys are getting into but this car knocks even at stock boost. So you most certainly cannot run stock ignition at 15 PSI without seeing some knock. If you do you got some serious cold air and maybe a little bit of magic under the hood
Appreciate 0
      09-14-2011, 03:43 PM   #186
uwotm8
Captain
62
Rep
709
Posts

Drives: E92 M3, F85 X5M, SL55, 997TT
Join Date: Aug 2011
Location: Dallas, TX

iTrader: (8)

This excites me!
Appreciate 0
      09-14-2011, 03:47 PM   #187
thebigragu99
Banned
45
Rep
828
Posts

Drives: 135 tuorbbo
Join Date: Aug 2011
Location: nyc

iTrader: (1)

Quote:
Originally Posted by Jeff@topgearsolutions View Post
I'm not sure what you guys are getting into but this car knocks even at stock boost. So you most certainly cannot run stock ignition at 15 PSI without seeing some knock. If you do you got some serious cold air and maybe a little bit of magic under the hood

+1 they do knock some,just like stock evos!

Well said jeff!!
Appreciate 0
      09-14-2011, 03:49 PM   #188
dzenno
Banned
Canada
273
Rep
5,876
Posts

Drives:
Join Date: Feb 2006

iTrader: (1)

Quote:
Originally Posted by Joshboody View Post
I guess we'll get guys doing this with atr. Lower boost increase timing you're lowering egt and exhaust manifold pressure, offering more timing and even more boost in the top end. An FBO in mild weather can run almost 15psi with stock timing on 93... Just make the IAT corrections greater. Hell, lower coolant temp by 10, 20deg and you get further benefits... I hope they are doing this now... There's plenty of cooling capacity it seems anyway.

I know there's safety to consider, but you can detonate after TDC also.
No Josh you can't run 15psi on stock timing, not even in Canada's cool weather and 94 pump Sunoco gas...on autotuning it'd max out at about 12.5psi on my car with full boltons as timing would be pulled 1-3 times mid 3rd gear pull and procede used to react to it by lowering boost (i.e. auto"tooning" it )
Appreciate 0
      09-14-2011, 04:01 PM   #189
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

If you could run 15 psi on stock timing curve without knock, the Shiv and Terry wars of 2009 would never have happened. Lmao
__________________
E90 LCI N54 6AT
Appreciate 0
      09-14-2011, 04:34 PM   #190
PlutoniumTans
Lieutenant
United_States
22
Rep
575
Posts

Drives: 335i
Join Date: Jul 2011
Location: Brooklyn,NY

iTrader: (2)

Quote:
Originally Posted by themyst View Post
If you could run 15 psi on stock timing curve without knock, the Shiv and Terry wars of 2009 would never have happened. Lmao
Now DIY mr5 intake
Appreciate 0
      09-14-2011, 05:03 PM   #191
Joshboody
Lieutenant Colonel
65
Rep
1,708
Posts

Drives: pickemuptruck
Join Date: Jul 2009
Location: Phoenix, AZ

iTrader: (7)

Geez, I may have exaggerated the specifics but I'm talking theory in optimizing engine efficiency compared to upping boost and lowering timing. anyway, carry on...
Appreciate 0
      09-14-2011, 10:30 PM   #192
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

Cobb stage 2 just made me giggle like a little schoolgirl. 6AT logs to come....
__________________
E90 LCI N54 6AT
Appreciate 0
      09-14-2011, 10:31 PM   #193
bulldog_yyc
Major General
bulldog_yyc's Avatar
130
Rep
5,040
Posts

Drives: GT3RS
Join Date: Oct 2008
Location: probably work

iTrader: (28)

Quote:
Originally Posted by themyst View Post
Cobb stage 2 just made me giggle like a little schoolgirl. 6AT logs to come....
Appreciate 0
      09-14-2011, 10:49 PM   #194
Brey335i
Banned
112
Rep
4,771
Posts

Drives: e46 ///M3
Join Date: Oct 2009
Location: Austin, TX

iTrader: (11)

Please note that my next question has nothing to do with any tuner wars and is not an attempt at attacking COBB's tune:

How does the Stage 2 feel when boost is being pulled back from 18 down low to 10 at redline or whatever Rob said?

It seems like the car would be a huge disappointment as you rev it...

I'm very interested to try out the COBB stage 2 with my mods and I'd love it if someone could explain what it feels like.
Appreciate 0
      09-15-2011, 01:43 AM   #195
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

Quote:
Originally Posted by Brey335i View Post
Please note that my next question has nothing to do with any tuner wars and is not an attempt at attacking COBB's tune:

How does the Stage 2 feel when boost is being pulled back from 18 down low to 10 at redline or whatever Rob said?

It seems like the car would be a huge disappointment as you rev it...

I'm very interested to try out the COBB stage 2 with my mods and I'd love it if someone could explain what it feels like.
Feels perfectly strong. It sure isn't 8psi at redline for sure. Do the math actually, Clap is sustaining close to 350whp at redline. Is that possible with 8psi at redline? even 10 psi at redline?
__________________
E90 LCI N54 6AT
Appreciate 0
      09-15-2011, 01:55 AM   #196
Brey335i
Banned
112
Rep
4,771
Posts

Drives: e46 ///M3
Join Date: Oct 2009
Location: Austin, TX

iTrader: (11)

Quote:
Originally Posted by themyst View Post
Feels perfectly strong. It sure isn't 8psi at redline for sure. Do the math actually, Clap is sustaining close to 350whp at redline. Is that possible with 8psi at redline? even 10 psi at redline?
I'll trust your experiences. I don't really care what it is at redline for now as long as it doesn't feel like it falls flat on its face as you hit high rpms. Which it sounds like it doesn't anyways...
Appreciate 0
      09-15-2011, 02:14 AM   #197
Bash
First Lieutenant
Bash's Avatar
8
Rep
395
Posts

Drives: E92-335i
Join Date: Jan 2011
Location: Beirut

iTrader: (0)

Quote:
Originally Posted by dzenno View Post
No Josh you can't run 15psi on stock timing, not even in Canada's cool weather and 94 pump Sunoco gas...on autotuning it'd max out at about 12.5psi on my car with full boltons as timing would be pulled 1-3 times mid 3rd gear pull and procede used to react to it by lowering boost (i.e. auto"tooning" it )
Tell that to Terry, where he suggets that i have drops at 11psi - 12psi due to the fact our 98 RON is performing as 89/90 octane US. Not the fact that you simply cannot run JB4 or procede for that matter without offestting or race/meth.

When someone runs meth/race then fine enjoy JB/procede.
But when only pump is available, to run them would be pure ignorance and stupidity. I cant believe its advertised as "map 2 intended for 93 octane" Show me one log that has not been tampered with that can run clean???????!!!!!!!
__________________

COBB S2+ - Mr.5 CAI, Catless DP, Catless MP, AMS FMIC.
Appreciate 0
      09-15-2011, 06:59 AM   #198
bmwm3redblack
Captain
bmwm3redblack's Avatar
59
Rep
886
Posts

Drives: BMW ///M3 E46, BMW E92 335Xi
Join Date: Jan 2011
Location: e13 osl

iTrader: (0)

Clap, just to make the things clear. If i got catless dp's,dci + Fmic can i safely run stage 2?

Catback is it compulsury or optional?
Appreciate 0
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 11:01 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST