E90Post
 


European Auto Source
 
BMW 3-Series (E90 E92) Forum > E90/E92/E93 Marketplace (For Sale / Trade / Wanted) > Private Owners For Sale / Trade / Wanted > Turbo Engine / Drivetrain / Exhaust Parts > Turbo? : loneeagletrading ( 917)Feedback: 99.9% Positive



Reply
 
Thread Tools Search this Thread
      04-05-2006, 02:17 AM   #1
JJin909
Private
1
Rep
75
Posts

 
Drives: E90
Join Date: Mar 2006
Location: 909

iTrader: (2)

Turbo? : loneeagletrading ( 917)Feedback: 99.9% Positive

BIMMERPOST / Classifieds
Asking Price:
None
Item Interest
Is this for real?

http://cgi.ebay.com/ebaymotors/BMW-E...QQcmdZViewItem

it really works?

Appreciate 0
      04-05-2006, 06:24 AM   #2
bos
Private
0
Rep
86
Posts

 
Drives: 2006 330i
Join Date: Mar 2006
Location: San Jose

iTrader: (0)

Garage List
2006 330i  [0.00]
Not really that useful. The quoted high cfm numbers drop drastically once the fan/blower begins to generate even a small amount of static pressure.

I you really want to do this, save yourself some money and buy a 12V boat bilge ventilator blower for a fraction of the price. A 250CFM part can be had for less than $30.

Last edited by bos; 04-05-2006 at 06:41 AM.
Appreciate 0
      04-05-2006, 07:13 AM   #3
bos
Private
0
Rep
86
Posts

 
Drives: 2006 330i
Join Date: Mar 2006
Location: San Jose

iTrader: (0)

Garage List
2006 330i  [0.00]
Just to do the math on this one:

There's an air-compressor rule of thumb that states 1 HP produces 4 CFM at 100 PSI. Power = (output) airflow * pressure.

Let's look at the cfm at 1 PSI of boost. It would take a 1/2 HP to deliver 200 CFM at +1 PSI. And a HP is 745 watts. No way is a motor drawing a couple of amps @ 12 V (24 watts) going to come even close.

The air consumption of the engine depends entirely on RPM, so any pressure it does produce will fall-off very rapidly with engine RPM as well, since unlike a turbo/super-charger, there is no scaling with engine speed. At 6000rpm, a 3L engine will actually inhale in excess of 300 cfm.

These guys, in contrast, are drawing 60 amps (120 amps for the super version), making their boost claims much more reasonable. http://www.electricsupercharger.com/faq.shtml. This is very much in line with the theoretical power requirements to compress air at these rates and pressures.

Last edited by bos; 04-05-2006 at 08:09 AM.
Appreciate 0
      04-05-2006, 10:25 AM   #4
longtran
Moderator
longtran's Avatar
443
Rep
16,617
Posts

 
Drives: E90 M3
Join Date: Jul 2005
Location: CA

iTrader: (105)

Garage List
2006 325i  [0.00]
Quote:
Originally Posted by bos

These guys, in contrast, are drawing 60 amps (120 amps for the super version), making their boost claims much more reasonable. http://www.electricsupercharger.com/faq.shtml. This is very much in line with the theoretical power requirements to compress air at these rates and pressures.
thats my friends shop. he gave me one for my 99 prelude but i never installed it.
Appreciate 0
      04-06-2006, 12:47 AM   #5
ChineseGuy
QuickShifter
ChineseGuy's Avatar
34
Rep
1,500
Posts

 
Drives: Black E90
Join Date: Nov 2005
Location: North Pole

iTrader: (2)

Is that Turbonator?
Appreciate 0
      04-06-2006, 02:05 AM   #6
JJin909
Private
1
Rep
75
Posts

 
Drives: E90
Join Date: Mar 2006
Location: 909

iTrader: (2)

So if the electric motor draws big power / more juice / moves more air = electric Turbo!

is that right BO?

so in theroy it is working ... just that not powerful enuff ??
Appreciate 0
      04-06-2006, 03:30 AM   #7
bos
Private
0
Rep
86
Posts

 
Drives: 2006 330i
Join Date: Mar 2006
Location: San Jose

iTrader: (0)

Garage List
2006 330i  [0.00]
I'm sure it does something, but you'd be looking at a tenth of a PSI at best.
Appreciate 0
      04-06-2006, 11:15 AM   #8
canucklion
pull my finger to get your kinder® surprise
canucklion's Avatar
Canada
110
Rep
10,454
Posts

 
Drives: circles around you
Join Date: Dec 2005
Location: Toronto, Canada

iTrader: (9)

there's sucker born every minute
Appreciate 0
      04-06-2006, 04:54 PM   #9
lux.sh
missing two turbos.
lux.sh's Avatar
United_States
139
Rep
4,860
Posts

 
Drives: fast around corners.
Join Date: Sep 2005
Location: Curves

iTrader: (12)

Garage List
turbonator is different.

everyone should jump on this deal. this is crazy. supercharger for $300!
what a bargain!!!!!!!! that thing has been around for awhile. one of the site I goto has contract with them.

I assume it'll gain nothing but 1whp and 10pds of extra unnecessary weight.
__________________
06 AW E90 330i ZPP/ZSP/Step/Expired Warranty

: Prior Design Front : ACS Rear : ACS Roof : BlackLines : Simota Intake : Carbon Fiber Interior Trim :
: MTEC V3 : 24% Charcoal : V1 Hardwired : Solaris Invisibulbs/LED interior :
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
Forum Jump


All times are GMT -5. The time now is 04:09 AM.




e90post
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