BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > M3 vs....
 
Post Reply
 
Thread Tools Search this Thread
      05-13-2008, 04:36 AM   #1
Gabri343
Private
Italy
4
Rep
79
Posts

 
Drives: Z4 M Roadster - ex M3 E46
Join Date: Jun 2007
Location: Italy

iTrader: (0)

C63 with RennTech ECU



PRE-ECU Flash 334.5 on a dyno

VIDEO


http://mbworld.org/forums/showthread.php?t=243116
Appreciate 0
      05-13-2008, 09:41 AM   #2
assuck
u w0t m8?
assuck's Avatar
United_States
1
Rep
105
Posts

 
Drives: 2014 bucket
Join Date: Apr 2006
Location: Upland, CA

iTrader: (0)

451bhp and it only puts 334 to the wheels?
Appreciate 0
      05-13-2008, 11:59 AM   #3
stook2003
Registered
0
Rep
2
Posts

 
Drives: I want a m3
Join Date: Apr 2008
Location: Canada

iTrader: (0)

Quote:
Originally Posted by assuck View Post
451bhp and it only puts 334 to the wheels?

If no correction factors were used, Dyno Dynamic reads very very low. A C6 Z06 only reads around 350WHP on one of our local dyno dynamics.
Appreciate 0
      05-13-2008, 09:55 PM   #4
ybbiz34
Moderator
ybbiz34's Avatar
181
Rep
4,714
Posts

 
Drives: 2013 C63 AMG Sedan
Join Date: Jul 2007
Location: USA

iTrader: (1)

Quote:
Originally Posted by stook2003 View Post
If no correction factors were used, Dyno Dynamic reads very very low. A C6 Z06 only reads around 350WHP on one of our local dyno dynamics.
+1. Dyno Dynamic = heartbreak.
Appreciate 0
      05-13-2008, 10:36 PM   #5
ToothDoc
Second Lieutenant
3
Rep
236
Posts

 
Drives: 997.2 TTS, IS-F, X5M
Join Date: Aug 2007
Location: Chicagoland

iTrader: (0)

HOLY COW! 100 HP from just a retune? WOW!!!! Well, we all knew this car was detuned coming out of the factory - but I didn't think that there was another 100 HP left in there. How'd they do it? Obviously more gas, but how do you put more air into a NA engine?
Appreciate 0
      05-13-2008, 11:10 PM   #6
GT3 Tim
Moderator
GT3 Tim's Avatar
United_States
30
Rep
1,897
Posts

 
Drives: 2008 E90 M3
Join Date: Feb 2008
Location: Sacramento, CA

iTrader: (0)

Come on....85 whp from a flash? please....

edit: yeah, something looks fishy with the stock whp figure....looks WAY low to me too.
__________________
Tim (apparently likes "3" cars)
E90 M3 -- Current ride
2004 GT3 -- Sold
1997 M3/4 -- Sold
1995 M3 -- Sold

Last edited by GT3 Tim; 05-13-2008 at 11:15 PM. Reason: Serious BS problem
Appreciate 0
      05-14-2008, 01:22 AM   #7
Hans Delbruck
BMW & MB - friends in my garage
Hans Delbruck's Avatar
United_States
21
Rep
1,285
Posts

 
Drives: C63, 135i, 1959 BUICK
Join Date: May 2005
Location: Huntington Beach, CA

iTrader: (0)

According to my butt dyno (and it's a big one ) the C63 is FAST!!!
__________________
2009 135i 6MT Euro Delivery 9/5/09
BMW Performance Power Kit - Exhaust - Short Shifter
Appreciate 0
      05-14-2008, 05:30 AM   #8
Gabri343
Private
Italy
4
Rep
79
Posts

 
Drives: Z4 M Roadster - ex M3 E46
Join Date: Jun 2007
Location: Italy

iTrader: (0)

The same engine 6.2 V8 on CL63 has 525 hp
Appreciate 0
      05-14-2008, 05:32 AM   #9
Gabri343
Private
Italy
4
Rep
79
Posts

 
Drives: Z4 M Roadster - ex M3 E46
Join Date: Jun 2007
Location: Italy

iTrader: (0)

Quote:
Originally Posted by GT3 Tim View Post
Come on....85 whp from a flash? please....

edit: yeah, something looks fishy with the stock whp figure....looks WAY low to me too.
You sell a GT3 mkII for a E90 M3
Appreciate 0
      05-14-2008, 07:55 AM   #10
bruce.augenstein@comcast.
Lieutenant Colonel
21
Rep
1,907
Posts

 
Drives: Legacy GT - 13.704@99.39
Join Date: Jul 2007
Location: Manheim, PA

iTrader: (0)

Quote:
Originally Posted by ToothDoc View Post
HOLY COW! 100 HP from just a retune? WOW!!!! Well, we all knew this car was detuned coming out of the factory - but I didn't think that there was another 100 HP left in there. How'd they do it? Obviously more gas, but how do you put more air into a NA engine?
I probably missed something, but reading through the posts it seemed as if there were two different tests with two different measuring devices, all on a stock engine - retune to follow but not yet published.

Did I get that wrong?

Bruce
Appreciate 0
      05-20-2008, 08:58 PM   #11
spearfisher
Lieutenant
spearfisher's Avatar
6
Rep
409
Posts

 
Drives: C6 ZO6
Join Date: Oct 2007
Location: FL

iTrader: (0)

that's some scary #'s, what a beast
Appreciate 0
      05-20-2008, 11:58 PM   #12
mcorliss
Private
United_States
1
Rep
77
Posts

 
Drives: 2011 X3 M-Sport (Loaded)
Join Date: Apr 2008
Location: Boston, MA

iTrader: (0)

Spoke to RennTech today about ECU for C63

Quote:
Originally Posted by ToothDoc View Post
HOLY COW! 100 HP from just a retune? WOW!!!! Well, we all knew this car was detuned coming out of the factory - but I didn't think that there was another 100 HP left in there. How'd they do it? Obviously more gas, but how do you put more air into a NA engine?
When I spoke to RennTech this afternoon, they said the ECU Upgrade is only good for 26-28 HP at a cost of $3,465. I don't know about you, but I have to ask myself whether a 5.76% increase in HP when you are already starting with 451 is even perceptible. Does not sound like it is worth $3,465 to me. Just my humble opinion.
Appreciate 0
      05-21-2008, 12:09 AM   #13
BlackJetE90
Colonel
36
Rep
2,515
Posts

 
Drives: E90
Join Date: Jul 2007
Location: e90

iTrader: (0)

Quote:
Originally Posted by mcc3456 View Post
When I spoke to RennTech this afternoon, they said the ECU Upgrade is only good for 26-28 HP at a cost of $3,465. I don't know about you, but I have to ask myself whether a 5.76% increase in HP when you are already starting with 451 is even perceptible. Does not sound like it is worth $3,465 to me. Just my humble opinion.
+1

It is already a beast. Not to mention warranty issues.
Appreciate 0
      05-22-2008, 12:32 AM   #14
Hans Delbruck
BMW & MB - friends in my garage
Hans Delbruck's Avatar
United_States
21
Rep
1,285
Posts

 
Drives: C63, 135i, 1959 BUICK
Join Date: May 2005
Location: Huntington Beach, CA

iTrader: (0)

Quote:
Originally Posted by mcc3456 View Post
When I spoke to RennTech this afternoon, they said the ECU Upgrade is only good for 26-28 HP at a cost of $3,465. I don't know about you, but I have to ask myself whether a 5.76% increase in HP when you are already starting with 451 is even perceptible. Does not sound like it is worth $3,465 to me. Just my humble opinion.
OMG you are already on this!!

VRP is just down the street from me and they are looking for a "test" car... I think I will let someone else go first.....
__________________
2009 135i 6MT Euro Delivery 9/5/09
BMW Performance Power Kit - Exhaust - Short Shifter
Appreciate 0
      05-22-2008, 12:38 AM   #15
mcorliss
Private
United_States
1
Rep
77
Posts

 
Drives: 2011 X3 M-Sport (Loaded)
Join Date: Apr 2008
Location: Boston, MA

iTrader: (0)

Quote:
Originally Posted by Hans Delbruck View Post
OMG you are already on this!!

VRP is just down the street from me and they are looking for a "test" car... I think I will let someone else go first.....
Well...like you said in your other post...a 500hp C63 would not necessarily be a bad thing per se
Appreciate 0
      05-22-2008, 12:43 AM   #16
Hans Delbruck
BMW & MB - friends in my garage
Hans Delbruck's Avatar
United_States
21
Rep
1,285
Posts

 
Drives: C63, 135i, 1959 BUICK
Join Date: May 2005
Location: Huntington Beach, CA

iTrader: (0)

Quote:
Originally Posted by mcc3456 View Post
Well...like you said in your other post...a 500hp C63 would not necessarily be a bad thing per se
We definitely need to do this!
__________________
2009 135i 6MT Euro Delivery 9/5/09
BMW Performance Power Kit - Exhaust - Short Shifter
Appreciate 0
      05-22-2008, 11:30 AM   #17
icemang17
Captain
icemang17's Avatar
15
Rep
644
Posts

 
Drives: 2008 E92 M3 DCT
Join Date: May 2008
Location: Stockton CA

iTrader: (0)

The most powerful 6.2L AMG motor is 518HP is some other models..... I wonder if the cams are different in the C63 or everything is related to tuning and more restrictive intake-exhaust plumbing?
__________________
Brian
2008 E92 M3, MR, DCT, extended BB leather, loaded!
1988 Porsche 928S4, Guards red/Champagne leather
1989 Porsche 928S4 track beast!!!
Appreciate 0
      05-22-2008, 10:10 PM   #18
mcorliss
Private
United_States
1
Rep
77
Posts

 
Drives: 2011 X3 M-Sport (Loaded)
Join Date: Apr 2008
Location: Boston, MA

iTrader: (0)

Good Question!

Quote:
Originally Posted by icemang17 View Post
The most powerful 6.2L AMG motor is 518HP is some other models..... I wonder if the cams are different in the C63 or everything is related to tuning and more restrictive intake-exhaust plumbing?
Wondering that myself! I understand the crazy logic that the lower model in the hierarchy should not have more power than the flagship, but come on, does a 40s-50s year old dude care if a 20s-30s kid drives a car with the same horsepower. They should all be 518hp providing the intake and exhaust manifold flow optimally, but artificially limiting the hp via the software is kind of paranoid, don't you think?
Appreciate 0
      05-26-2008, 02:25 PM   #19
KonigsTiger
Racying Dynamics
KonigsTiger's Avatar
66
Rep
4,398
Posts

 
Drives: E92M3 RS46 Club Sport, others
Join Date: Jan 2008
Location: Dweller

iTrader: (0)

I know for a fact that the exhaust and headers on the C63 are more restrictive than on other “higher up” models, I suspect the intake may be rather restricted as well and camos (though I donīt think so) may be different as well. In any event, I donīt think you can get an additional 100 hp from just an ECU reflash on that engine. Sounds way fishy, but then again, I have spoken to a Renntech technician (albeit only one but still from Renntech in Florida) that said some things that sounded way exaggerated to me.
__________________
==================================================
Appreciate 0
Post 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
Forum Jump


All times are GMT -5. The time now is 07:16 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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