E90Post
 


Extreme Powerhouse
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Max HP/TQ for a Step 6mt



Reply
 
Thread Tools Search this Thread
      11-16-2009, 09:23 PM   #1
JPA
Private First Class
8
Rep
106
Posts

Drives: German
Join Date: Aug 2009
Location: USA

iTrader: (3)

Max HP/TQ for a Step 6mt

What would you all estimate the max power you can generate without toasting an auto 335? Anyone making 400 HP or better having transmission problems?

Thanks,
John
Appreciate 0
      11-16-2009, 09:44 PM   #2
HPFREAK
Lieutenant Colonel
63
Rep
1,884
Posts

Drives: C6 ZO6
Join Date: Sep 2009
Location: Socal

iTrader: (8)

I am pretty sure they can handle 400 without issue. If you look at Terry from BMS his cars are making over 400hp at the wheels and have been doing so for awhile now and are daily drivers with no issues that I know of.
__________________
My Youtube Channel
Appreciate 0
      11-17-2009, 03:00 AM   #3
Terrance28
Brigadier General
Terrance28's Avatar
United_States
109
Rep
3,334
Posts

Drives: Crimson Red E92
Join Date: Nov 2007
Location: Killeen, TX

iTrader: (17)

We have already passed the 400 mark a long time ago.
__________________
Mods list got too long, lets just say more than enough.
Appreciate 0
      11-17-2009, 03:02 AM   #4
thatsosm
Miracle Whip
thatsosm's Avatar
United_States
44
Rep
740
Posts

Drives: 07 e90 AW335i
Join Date: Apr 2007
Location: NJ/NY

iTrader: (1)

ASR's upgraded turbo kit/meth put out 540 RWHP
__________________
13.16@108.97 2.195 60'
Appreciate 0
      11-17-2009, 10:00 AM   #5
Sniz
Lieutenant General
Sniz's Avatar
648
Rep
10,587
Posts

Drives: e92 335 - gone // e36 M3 turbo
Join Date: Mar 2007
Location: Ellicott City, MD

iTrader: (1)

the clutch is what needs to be upgraded. Not sure anyone has seen the limits of the actual tranny.
__________________
Appreciate 0
      11-17-2009, 10:04 AM   #6
wakeboarder109
Lieutenant Colonel
wakeboarder109's Avatar
United_States
167
Rep
1,734
Posts

Drives: in High Country
Join Date: Jul 2008
Location: RVA

iTrader: (3)

Quote:
Originally Posted by alexosma View Post
ASR's upgraded turbo kit/meth put out 540 RWHP
isn't ASR's 135 a 6MT though?
Appreciate 0
      11-17-2009, 10:09 AM   #7
Sniz
Lieutenant General
Sniz's Avatar
648
Rep
10,587
Posts

Drives: e92 335 - gone // e36 M3 turbo
Join Date: Mar 2007
Location: Ellicott City, MD

iTrader: (1)

Quote:
Originally Posted by wakeboarder109 View Post
isn't ASR's 135 a 6MT though?
ah....looks like the OP wanted to confuse us all.
__________________
Appreciate 0
      11-17-2009, 10:11 AM   #8
wakeboarder109
Lieutenant Colonel
wakeboarder109's Avatar
United_States
167
Rep
1,734
Posts

Drives: in High Country
Join Date: Jul 2008
Location: RVA

iTrader: (3)

Quote:
Originally Posted by Sniz View Post
ah....looks like the OP wanted to confuse us all.

yea, his thread title got me at first too
Appreciate 0
      11-17-2009, 10:16 AM   #9
john boxter
Captain
United_States
35
Rep
763
Posts

Drives: 2008 e93
Join Date: Sep 2009
Location: long Island New York

iTrader: (3)

Quote:
Originally Posted by alexosma View Post
ASR's upgraded turbo kit/meth put out 540 RWHP
540rwhp? where did you see that? i was under the impression asr upgraded turbos only add 50 or whp
Appreciate 0
      11-17-2009, 10:18 AM   #10
Proper Motion LLC
Custom Powder Coater
Proper Motion LLC's Avatar
147
Rep
2,784
Posts

Drives: White 335i Sedan
Join Date: Dec 2008
Location: Orange County CA

iTrader: (2)

Quote:
Originally Posted by john boxter View Post
540rwhp? where did you see that? i was under the impression asr upgraded turbos only add 50 or whp
It adds 50WHP or so on pump gas. (91 octane I believe)
__________________
Appreciate 0
      11-17-2009, 10:19 AM   #11
ArmyBimmerDude
Major General
ArmyBimmerDude's Avatar
United_States
152
Rep
5,501
Posts

Drives: Lola
Join Date: Nov 2006
Location: Georgia

iTrader: (3)

Garage List
Quote:
Originally Posted by john boxter View Post
540rwhp? where did you see that? i was under the impression asr upgraded turbos only add 50 or whp
Incorrect. Their current vehicle with all bolt-ons, meth, race fuel, and piggyback makes around 550rwhp on a Dynojet. Shiv made a thread and posted some videos if i remember right.

By the way, doesnt a transmission only care about torque?

Thread with graphs:

http://www.e90post.com/forums/showth...&highlight=ASR
__________________
2007 E92 Montego Blue 335i
Appreciate 0
      11-17-2009, 10:26 AM   #12
Proper Motion LLC
Custom Powder Coater
Proper Motion LLC's Avatar
147
Rep
2,784
Posts

Drives: White 335i Sedan
Join Date: Dec 2008
Location: Orange County CA

iTrader: (2)

Transmissions are rated by torque not horsepower. And even the 400WHP N54's are only making about 300ft-lbs @ 6500RPM, and much less even @ 7000RPM.

Altho it still sucks that our 6AT is rated at 333 ft-lbs (ZF-6HP21), and a freaking V6 Hyundai Genesis Coupe is rated at 433 ft-lbs (ZF-6HP26)
__________________
Appreciate 0
      11-17-2009, 10:52 AM   #13
Former_Boosted_IS
Major General
307
Rep
5,175
Posts

Drives: 4 Wheels
Join Date: Aug 2007
Location: Planet Earth!

iTrader: (15)

Quote:
Originally Posted by 09AlpineTTSedan View Post
Transmissions are rated by torque not horsepower. And even the 400WHP N54's are only making about 300ft-lbs @ 6500RPM, and much less even @ 7000RPM.

Altho it still sucks that our 6AT is rated at 333 ft-lbs (ZF-6HP21), and a freaking V6 Hyundai Genesis Coupe is rated at 433 ft-lbs (ZF-6HP26)
It really should't matter where you make the torque though. It is rare you snap a tranny at high rpms, it is normally in the massive torque spikes. I am one of the 400 rwhp N54s you mention and I make over 425 rwtq, so "we" make big torque numbers.
Appreciate 0
      11-17-2009, 11:04 AM   #14
Proper Motion LLC
Custom Powder Coater
Proper Motion LLC's Avatar
147
Rep
2,784
Posts

Drives: White 335i Sedan
Join Date: Dec 2008
Location: Orange County CA

iTrader: (2)

Quote:
Originally Posted by Former_Boosted_IS View Post
It really should't matter where you make the torque though. It is rare you snap a tranny at high rpms, it is normally in the massive torque spikes. I am one of the 400 rwhp N54s you mention and I make over 425 rwtq, so "we" make big torque numbers.

Then I don't understand why they would give us a transmission that is rated for 333ft-lbs when The BMW Performance Pack 335i is rated at exactly 333ft-lbs, and is obviously underrated.
__________________
Appreciate 0
      11-17-2009, 11:12 AM   #15
Catahecassa
Enlisted Member
0
Rep
49
Posts

Drives:
Join Date: Apr 2008

iTrader: (0)

413 lb-ft ist the limit for the clutch, 460lb-ft for the manual transmission, 480 lb-ft for the driveshafts.
Clutch will start to slip, transmission will get cracked, driveshafts will getting drilled.
Appreciate 0
      11-18-2009, 05:15 AM   #16
Former_Boosted_IS
Major General
307
Rep
5,175
Posts

Drives: 4 Wheels
Join Date: Aug 2007
Location: Planet Earth!

iTrader: (15)

Quote:
Originally Posted by 09AlpineTTSedan View Post
Then I don't understand why they would give us a transmission that is rated for 333ft-lbs when The BMW Performance Pack 335i is rated at exactly 333ft-lbs, and is obviously underrated.
There is a significant difference in what a tranny is rated for and what it will withstand. I suspect there is probably a 20% overhead in the rating, so I don't think the tranny is the biggest concern we have on this car.
Appreciate 0
      11-18-2009, 06:42 AM   #17
Alpina_B3_Lux
Colonel
Alpina_B3_Lux's Avatar
263
Rep
2,564
Posts

Drives: Audi R8 LMX, BMW M550i xDrive
Join Date: Feb 2008
Location: Germany

iTrader: (0)

Garage List
2009 335i  [8.90]
Quote:
Originally Posted by Catahecassa View Post
413 lb-ft ist the limit for the clutch, 460lb-ft for the manual transmission, 480 lb-ft for the driveshafts.
Clutch will start to slip, transmission will get cracked, driveshafts will getting drilled.
Where do these figures come from? I'm curious on whether it's an additional safety feature that is also programmed in the DME, as my Evotech flash although increasing in hp didn't go beyond 560 Nm torque (which is 413 lb-ft); and the new GIAC stage 2 flash seems to go until short of 460 lb-ft (around 623 Nm)...mere coincidence?

Alpina_B3_Lux
__________________
Audi R8 LMX, BMW M550i xDrive (G30 LCI); gone: Alpina B3 3,3 (E46), BMW 335i, Audi R8 V10 manual, Audi R8 V10, BMW M235i, BMW 550i F10
Appreciate 0
      11-18-2009, 07:25 AM   #18
Former_Boosted_IS
Major General
307
Rep
5,175
Posts

Drives: 4 Wheels
Join Date: Aug 2007
Location: Planet Earth!

iTrader: (15)

Quote:
Originally Posted by Catahecassa View Post
413 lb-ft ist the limit for the clutch, 460lb-ft for the manual transmission, 480 lb-ft for the driveshafts.
Clutch will start to slip, transmission will get cracked, driveshafts will getting drilled.
Hold on a second. First let's remember the M5/6 share the same 6MT tranny (ZF Type G). Some facts:

--- The Dinan M5/6 package creates 468 ft/lb of torque and 611 horsepower
--- The M5/6 also weighs about 500 lbs more than the 335i and 900 than the 135i

If you believe for one second that 460 ft/lb of torque is the maximum the 6MT (ZF Type G) will hold on the 135i/335i then you are crazy. The 6MT tranny is the last thing you need to worry about in my opinion.
Appreciate 0
      11-18-2009, 08:25 AM   #19
ArmyBimmerDude
Major General
ArmyBimmerDude's Avatar
United_States
152
Rep
5,501
Posts

Drives: Lola
Join Date: Nov 2006
Location: Georgia

iTrader: (3)

Garage List
Getrag is known for building robust manual transmissions. I wouldnt worry about that either.
__________________
2007 E92 Montego Blue 335i
Appreciate 0
      11-18-2009, 08:49 AM   #20
Mike@N54Tuning.com
Joint Chiefs of Staff
Canada
4902
Rep
115,955
Posts

Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

iTrader: (89)

We have seen a few dynos now in the 400-450 range from several tuners.

Mike
Appreciate 0
      11-18-2009, 09:38 AM   #21
enrita
Major General
enrita's Avatar
Sweden
159
Rep
7,378
Posts

Drives: 335i - Big turbos
Join Date: Sep 2008
Location: Italian in Sweden

iTrader: (0)

does the AT have some kind of torque limiter or it will just handle whats given to it? Think i have read that different gears have different limits...
__________________
07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
Appreciate 0
      11-18-2009, 12:21 PM   #22
JPA
Private First Class
8
Rep
106
Posts

Drives: German
Join Date: Aug 2009
Location: USA

iTrader: (3)

Sorry for the original post's title. But I really am concerned about the Auto-Step. I am not just concerned with brief 1/4 miles or even back to back 1/4 miles. I am wondering about taking a highly modded AT car to the track, and running hard for 20-30mins. Would I need to turn down the power/torque to survive the whole day?

Should I just start over with a 6mt; look into transmission coolers; or what?

John
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 09:18 AM.




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