Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)

E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 02-02-2005, 12:30 PM
joema joema is offline
Officially Welcomed to the 'Fest
Location: Nashville, TN
 
Join Date: Aug 2002
Posts: 209
Mein Auto: 2003 330i SP sedan 5-spd
330i Dyno results: Dinan CAI, TB, exhaust, software

Here are my before/after Dynojet results for the Dinan CAI, throttle body, exhaust, and stage 3 ECU software. Both before and after graphs are each the best of 5 runs.

2003 330i SP 5-speed. Ambient temperature 48 degrees. 93 octane premium. Pictured runs in 4th gear. We experimentally tried 3rd and 5th gear, and it made little difference.

I was hoping for better gains, but my pre-mod numbers were quite high - 204.9 HP/206.3 ft-lbs. The dyno tech said if you get a lucky "strong" engine, they often don't respond as well to simple bolt-on mods.

On the plus side there are no drivability issues. No unpleasant induction noise, exhaust droning, idle problems, etc.
Attached Thumbnails
Click image for larger version

Name:	File0045.jpg
Views:	13246
Size:	56.3 KB
ID:	43919  
Reply With Quote
Ads by Google
  #2  
Old 03-11-2005, 10:16 AM
doeboy's Avatar
doeboy doeboy is offline
DHP pwns ZHP :p
Location: OC, California
 
Join Date: Sep 2002
Posts: 7,081
Mein Auto: DHP Heehee... :p
Wow... good strong numbers...
__________________

'03 330Ci DHP
'06 M3 SMG
"du hast mich gefragt, und ich hab nichts gesagt"
Reply With Quote
  #3  
Old 03-11-2005, 10:22 AM
Kaz's Avatar
Kaz Kaz is offline
King of Rear Clunks
Location: OC, CA
 
Join Date: Dec 2001
Posts: 12,915
Mein Auto: 01 325iT, 88 M6
Correct me if I'm wrong but I think these are the highest non-boosted M54 Dynojet numbers we've seen here.
Reply With Quote
  #4  
Old 03-11-2005, 11:25 PM
Matthew330Ci's Avatar
Matthew330Ci Matthew330Ci is offline
:-)
Location: NorCal
 
Join Date: Sep 2002
Posts: 2,262
Mein Auto: E46 M3
Quote:
Originally Posted by Kaz
Correct me if I'm wrong but I think these are the highest non-boosted M54 Dynojet numbers we've seen here.
I believe it is.

Congrats to joema!
__________________
-Matt, Nor Cal

02 M3 6MT - a bunch of mods | No V-CSL | No carbon fiber anywhere
Sold: 03 330Ci - No Leather | No Moonroof | No Step | European delivered
Reply With Quote
  #5  
Old 03-12-2005, 08:32 AM
Mr Paddle.Shift Mr Paddle.Shift is offline
Officially Welcomed to the 'Fest
Location: bmw
 
Join Date: Dec 2001
Posts: 3,848
Mein Auto: bmw
I do think that your numbers are stronger (even as stock) compared to fso_BamBam. Reason being I see that your tech smoothed out the graph. A dyno graph with smoothing certainly has a lower maximum value than a non-smoothed graph. Dynojet s/w provides graph smoothing from 0 to 5, in order of smoothness. I personally prefer smoothing just because it provides a better picture of the expected transition between the data points collection.
__________________


Technik Engineering ASA Stage 1 Supercharged E46 M54B25.
NASA TTD So Cal. Track blog: VSETrack

Reply With Quote
  #6  
Old 03-12-2005, 04:41 PM
Robbyrh10 Robbyrh10 is offline
Registered User
Location: Orange County
 
Join Date: Dec 2004
Posts: 40
Send a message via AIM to Robbyrh10
Mein Auto: 330ci ZHP
can yo u actually feel the gains?
__________________
Reply With Quote
  #7  
Old 03-12-2005, 07:38 PM
joema joema is offline
Officially Welcomed to the 'Fest
Location: Nashville, TN
 
Join Date: Aug 2002
Posts: 209
Mein Auto: 2003 330i SP sedan 5-spd
Quote:
Originally Posted by Robbyrh10
can yo u actually feel the gains?
To be honest, no. But keep in mind the total max HP/torque gain was fairly small, percentage-wise.

Also I can't tell much difference in 0-60 time. Both before and after it's about 6.2 sec, measured by either stop watch or G-Tech. So despite the superficially high Dynojet numbers, it didn't translate into obviously faster acceleration.

However there's definitely a throttle response difference. The Dinan ECU software remaps the throttle so power builds faster as RPMs climb. That makes it feel faster, although peak power isn't much higher. A downside is it's almost twitchy under some conditions, mainly when cold.

In general if you want significant, unmistakable power increase, forced induction is the only way.
Reply With Quote
  #8  
Old 03-13-2005, 09:41 PM
fso_BamBam's Avatar
fso_BamBam fso_BamBam is offline
Officially Welcomed to the 'Fest
Location: West Coast
 
Join Date: Dec 2002
Posts: 181
Mein Auto: '03 330ci
joema's numbers are superb.

He already explained the small difference in power increase, due to having such a strong stock baseline to begin with. I've been running Chevron 92 octane since the dyno day, and plan on dynoing again in a couple of months. Hopefully, it'll be closer to 210/210 this time.

I think however that joema's stock numbers are the exception, not the norm. He simply has a freakishly strong stock engine. So, the Dinan mods really didn't have much else to extract out of that. For most us, I think 190-195 whp stock is probably a more realistic number.
__________________
'06 Titanium Silver M3
Black Leather / HK / Xenons / 6-MT / Matching Corner Lenses / Coming Soon: ZCP Wheels

Reply With Quote
  #9  
Old 03-13-2005, 10:36 PM
The HACK's Avatar
The HACK The HACK is offline
Rest in peace, Coach
Location: People's Republic of United States
 
Join Date: Dec 2001
Posts: 9,108
Mein Auto: '06 MZ4C, '09 WRX Wagon
Quote:
Originally Posted by fso_BamBam
joema's numbers are superb.

He already explained the small difference in power increase, due to having such a strong stock baseline to begin with. I've been running Chevron 92 octane since the dyno day, and plan on dynoing again in a couple of months. Hopefully, it'll be closer to 210/210 this time.

I think however that joema's stock numbers are the exception, not the norm. He simply has a freakishly strong stock engine. So, the Dinan mods really didn't have much else to extract out of that. For most us, I think 190-195 whp stock is probably a more realistic number.
I dunno. That's 4 out of 4 "exception rather than the norm" type cars that members here have. There's another dyno posted earlier in the week, Doeboy's DHP, and Tanin's old 330i...All showed higher than expected HP ratings. If I'm not mistaken, another 330i pulled at the same dyno showed higher than published number as well.

I think BMW just understates the HP numbers, period.
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)
Today's Posts Search
Thread Tools
Display Modes

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 On



Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dinan software installed in '01 M (long) bmargolis E36 /7 Z3 (1996-2002) 23 01-20-2003 09:36 AM
opinions on the dinan engine software Magna 3 Series / 4 Series 45 07-03-2002 09:39 AM
Dinan CAI / Stage II Software for 330i ? Tanin 3 Series / 4 Series 8 06-25-2002 12:38 PM
Edmunds Convertible review The BoatMan 3 Series / 4 Series 35 06-19-2002 09:13 PM
The scoop on Dinan mods!!! humanoid General BMW 11 05-17-2002 05:10 PM


All times are GMT -7. The time now is 01:13 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms