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 > Going for 400rwhp....



Reply
 
Thread Tools Search this Thread
      06-11-2008, 02:04 PM   #23
cwn23
Major
24
Rep
1,142
Posts

Drives: E92
Join Date: May 2007
Location: USA

iTrader: (0)

we will see if those numbers are true to its advertisement once and for all!!!
Appreciate 0
      06-11-2008, 02:04 PM   #24
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by ironic View Post
either way still great numbers so if you were to fall a little short don't sweat it. your car will sitll be making some serious power. for those days you want 400 hp you could probably just mix your fuel
I might do some race gas runs too....

As I said, I am bringing the laptop so I will have a bunch of maps downloaded and ready to go....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
Appreciate 0
      06-11-2008, 02:06 PM   #25
OpenFlash
United_States
1849
Rep
17,960
Posts

Drives: A Lot
Join Date: Sep 2006
Location: SF Bay, CA

iTrader: (0)

Garage List
Quote:
Originally Posted by e90AW335i View Post
So adding catless DPs onto my current setup (365rwhp), would only get me 5-10rwhp?

I guess we will just see. I hope to suprise everyone.....
Yeah because the exhaust still has to go through the back half of the exhaust which is restrictive. If you already had a cat-back with no secondary cats, adding dps would be worth much more power. Especially above 6000rpm.

Shiv
Appreciate 0
      06-11-2008, 02:10 PM   #26
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by shiv@vishnu View Post
Yeah because the exhaust still has to go through the back half of the exhaust which is restrictive. If you already had a cat-back with no secondary cats, adding dps would be worth much more power. Especially above 6000rpm.

Shiv
Damn. Okay, well I am gonna have Joel cut off the secondary cats and put straight pipe in. Do you think you are gonna have a new map for me to run?
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
Appreciate 0
      06-11-2008, 02:15 PM   #27
b335i
First Lieutenant
b335i's Avatar
22
Rep
386
Posts

Drives: 2008 e92 335i, 2012 f10 535i
Join Date: Dec 2007
Location: socal

iTrader: (3)

Quote:
Originally Posted by e90AW335i View Post
Damn. Okay, well I am gonna have Joel cut off the secondary cats and put straight pipe in. Do you think you are gonna have a new map for me to run?
If you are catless w/ just straight pipe all the way back it will sound like FYI
Appreciate 0
      06-11-2008, 02:16 PM   #28
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by b335i View Post
If you are catless w/ just straight pipe all the way back it will sound like FYI
I am still going to run the stock mufflers. I dont want strait pipe sound.....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
Appreciate 0
      06-11-2008, 02:19 PM   #29
b335i
First Lieutenant
b335i's Avatar
22
Rep
386
Posts

Drives: 2008 e92 335i, 2012 f10 535i
Join Date: Dec 2007
Location: socal

iTrader: (3)

Quote:
Originally Posted by e90AW335i View Post
I am still going to run the stock mufflers. I dont want strait pipe sound.....
Yeah..good idea. Not too sure how that would sound, my buddy did ur catless with 2nd cat delete and Dinan mufflers....put it this way, he put the cats back on.
Appreciate 0
      06-11-2008, 02:21 PM   #30
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by b335i View Post
Yeah..good idea. Not too sure how that would sound, my buddy did ur catless with 2nd cat delete and Dinan mufflers....put it this way, he put the cats back on.
LOL, that sucks....

That is why I wanted to keep the secondary cats on as well but I really want to hit that power point....

I will make my final decision Saturday before they put it on the lifts....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
Appreciate 0
      06-11-2008, 02:21 PM   #31
ktdw
BMWCCA #401908
ktdw's Avatar
60
Rep
470
Posts

Drives: 135i
Join Date: Apr 2008
Location: Bay Area

iTrader: (0)

What about High Flow Cats, instead of catless?
__________________


Vishnu PROcede v3, Vishnu Dual Cone Intake, Code3 FMIC, Riss Racing Downpipes, Riss Racing Exhaust, H&R Sport Springs
Best 1/4 mile: 12.583 @ 117.609 mph
Appreciate 0
      06-11-2008, 02:21 PM   #32
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by ktdw View Post
What about High Flow Cats, instead of catless?
It is still cats. You wont make nearly the same amount of power.....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
Appreciate 0
      06-11-2008, 02:22 PM   #33
ironic
Major General
ironic's Avatar
United_States
271
Rep
8,338
Posts

Drives: Jet Black 335i
Join Date: Dec 2006
Location: San Francisco, Ca

iTrader: (22)

Quote:
Originally Posted by b335i View Post
Yeah..good idea. Not too sure how that would sound, my buddy did ur catless with 2nd cat delete and Dinan mufflers....put it this way, he put the cats back on.
my exhaust right now is full catless, it sounds pretty good so i think it has to do with the mufflers a lot

http://www.e90post.com/forums/showpo...19&postcount=2
__________________


Widebody 335i Project Car BUILD | PHOTOSHOOT
Appreciate 0
      06-11-2008, 02:23 PM   #34
b335i
First Lieutenant
b335i's Avatar
22
Rep
386
Posts

Drives: 2008 e92 335i, 2012 f10 535i
Join Date: Dec 2007
Location: socal

iTrader: (3)

Quote:
Originally Posted by ironic View Post
my exhaust right now is full catless, it sounds pretty good so i think it has to do with the mufflers a lot

http://www.e90post.com/forums/showpo...19&postcount=2
I definitely agree.
Appreciate 0
      06-11-2008, 02:24 PM   #35
continentalg5
Major
continentalg5's Avatar
United_States
18
Rep
1,074
Posts

Drives: BMW
Join Date: Dec 2005
Location: Earth

iTrader: (0)

I hope you have tires that can bite down with that much power going to them.
Appreciate 0
      06-11-2008, 02:25 PM   #36
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by continentalg5 View Post
I hope you have tires that can bite down with that much power going to them.
Nope, OEM runflats FTL!
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
Appreciate 0
      06-11-2008, 02:26 PM   #37
Ryan@Motorwerks
Captain
Ryan@Motorwerks's Avatar
50
Rep
963
Posts

Drives: X3M
Join Date: Oct 2005
Location: Houston, TX

iTrader: (0)

pull a VIP tuning and run spray...and then deny it
Appreciate 0
      06-11-2008, 02:26 PM   #38
ironic
Major General
ironic's Avatar
United_States
271
Rep
8,338
Posts

Drives: Jet Black 335i
Join Date: Dec 2006
Location: San Francisco, Ca

iTrader: (22)

Quote:
Originally Posted by e90AW335i View Post
Nope, OEM runflats FTL!
haha well you'll have drama like you're running 500hp when you floor it

wheelspin isn't the quickest way around but it's fun
__________________


Widebody 335i Project Car BUILD | PHOTOSHOOT
Appreciate 0
      06-11-2008, 02:28 PM   #39
jcarlucci1
Lieutenant Colonel
72
Rep
1,642
Posts

Drives: Jet Black 335i
Join Date: Mar 2007
Location: Tampa

iTrader: (10)

If they can do exhaust work there, why not dyno with downpipes/stock exhaust, then if you dont like the numbers, replace sec. cats with straight pipe and re-dyno? I think that would be really useful info!



Quote:
Originally Posted by e90AW335i View Post
LOL, that sucks....

That is why I wanted to keep the secondary cats on as well but I really want to hit that power point....

I will make my final decision Saturday before they put it on the lifts....
Appreciate 0
      06-11-2008, 02:29 PM   #40
Nakashima
New Member
United_States
0
Rep
16
Posts

Drives: MB 335i
Join Date: Aug 2007
Location: Houston TX

iTrader: (0)

Good Luck!!!!
__________________
[SIGPIC]
2007 E92 335I
Appreciate 0
      06-11-2008, 02:32 PM   #41
Sniz
Lieutenant General
Sniz's Avatar
715
Rep
10,584
Posts

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

iTrader: (1)

Quote:
Originally Posted by ironic View Post
haha well you'll have drama like you're running 500hp when you floor it

wheelspin isn't the quickest way around but it's fun

+1


new tires will be worth gold once you hit that power level, hell even at your current level the RFT can't handle it. Mine were TOAST before long.


best of luck w/ your #'s!!
__________________
Appreciate 0
      06-11-2008, 02:32 PM   #42
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by jcarlucci1 View Post
If they can do exhaust work there, why not dyno with downpipes/stock exhaust, then if you dont like the numbers, replace sec. cats with straight pipe and re-dyno? I think that would be really useful info!
It would be useful information but I dont have money for all of that. Plus, it is already going to be a tight timeframe as it is.....

I need to decide if I am going to keep them or not. I might put up a poll....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
Appreciate 0
      06-11-2008, 02:32 PM   #43
ZJP
Lieutenant Colonel
United_States
136
Rep
1,759
Posts

Drives: F10 535xi / B6 S4
Join Date: Jan 2008
Location: LI, NY

iTrader: (7)

Quote:
Originally Posted by e90AW335i View Post
It is still cats. You wont make nearly the same amount of power.....
What, like 5-6whp loss with HFC? or is it much more...
Appreciate 0
      06-11-2008, 02:33 PM   #44
e90AW335i
Major General
United_States
149
Rep
6,608
Posts

Drives: e90 335i
Join Date: Sep 2007
Location: ......

iTrader: (4)

Quote:
Originally Posted by Tranzporter View Post
What, like 5-6whp loss with HFC? or is it much more...
Not sure, I would guess more....
__________________
I install all tunes, intakes, o2 simms, and most cosmetic mods. PM me for a quote.
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 04:25 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, 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