What size injectors are on the 318 and 325/328? - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 03-31-2004, 05:24 PM   #1 (permalink)
n00b
 
Join Date: Jan 2004
Car:
Posts: 40
Photos:
nick_g_evans is an unknown quantity at this point
So, are the 6 cylinder injectors bigger than the 4 cylinder? I wouldn't think so, but I hope so. Anybody know the stock sizes?
nick_g_evans is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-31-2004, 11:57 PM   #2 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
my book shows them to be the same, but does not mention flow rate, but the FPR is set to 43.5 on both, so I imagine flow is the same.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 03-31-2004, 11:59 PM   #3 (permalink)
n00b
 
Join Date: Jan 2004
Car:
Posts: 40
Photos:
nick_g_evans is an unknown quantity at this point
Quote:
Originally posted by El Presidente@Apr 1 2004, 01:37 AM
my book shows them to be the same, but does not mention flow rate, but the FPR is set to 43.5 on both, so I imagine flow is the same.
What book? The Bentely? I couldn't find it in there.
nick_g_evans is offline   Reply With Quote
Old 04-01-2004, 12:04 AM   #4 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
Actually the cheap Haynes manual.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 04-01-2004, 03:41 AM   #5 (permalink)
Super Moderator
 
dutchbmw's Avatar
 
Join Date: Dec 2003
Location: SW Minnesota
Car:
Posts: 5,370
Photos:
dutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond repute
Send a message via AIM to dutchbmw
They're not the same. The 325i/328i works also with higher fuel pressure!
__________________
BMW '96 M3 (SOLD)
June 2005 Car Of The Month!
Quote:
Originally Posted by Torque
I was just dropped off here by aliens one day. They got bored with me.
dutchbmw is offline   Reply With Quote
Old 04-01-2004, 12:42 PM   #6 (permalink)
3rd Gear Member
 
Andrewsd1985's Avatar
 
Join Date: Oct 2003
Location: Gainesville, Florida
Car:
Posts: 698
Photos:
Andrewsd1985 is an unknown quantity at this point
Send a message via AIM to Andrewsd1985
What would be good injectors to upgrade to in a 325?
__________________
PRESIDENT OF THE OVER 10 YEARS OLD AND UNDER 100K MILES CLUB
1993 325i 5spd
Benfer Performance Intake
M-tech Pedals and Shiftknob
Bavarian Auto Floor Mats
Wheelskin Steering Wheel Cover
Panasonic Head Unit
Euro Projector Lights w/ black Housing
Black Housing Clear Corners
Dinan Chip
MORE TO COME!!

<img src='http://plaza.ufl.edu/dunna/Pictures/banner.jpg' border='0' alt='user posted image' />
Andrewsd1985 is offline   Reply With Quote
Old 04-01-2004, 10:57 PM   #7 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
the only reason you would need larger injectors is if you biult a full race motor or went FI with a high PSI. Otherwise, you'll be wasting the money.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 04-01-2004, 11:28 PM   #8 (permalink)
You Can Has A Custom Title!!
 
Kevin325i's Avatar
 
Join Date: Mar 2004
Location: Madison, WI
Car:
Posts: 2,613
Photos:
Kevin325i is an unknown quantity at this point
Send a message via AIM to Kevin325i
Quote:
Originally posted by El Presidente@Apr 1 2004, 10:37 PM
the only reason you would need larger injectors is if you biult a full race motor or went FI with a high PSI. Otherwise, you'll be wasting the money.
werd

Adding bigger injectors might give you a tiny gain. Going too big will cause your car to die when you stop on the gas. Maybe if you had a big intake so you needed more fuel to mix in otherwise you'd just run rich the whole time.

I'd say just have the injectors cleaned and put the money you'd spend on new injectors into a chip.

Just my $0.02
__________________
Kevin (President TBEA)

&quot;WAAAAAAARRRRRIORS, come out to plaaaaay.&quot;
Kevin325i is offline   Reply With Quote
Old 04-01-2004, 11:54 PM   #9 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
if this was an POS car then you would probably see a gain, but because the DME determines how much fuel is neeeded, larger injectors won't automatically flow more fuel; they have to be told to. If they did flow more you just be running rich.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 04-02-2004, 04:15 AM   #10 (permalink)
Super Moderator
 
dutchbmw's Avatar
 
Join Date: Dec 2003
Location: SW Minnesota
Car:
Posts: 5,370
Photos:
dutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond repute
Send a message via AIM to dutchbmw
Quote:
Originally posted by El Presidente@Apr 2 2004, 01:34 AM
if this was an POS car then you would probably see a gain, but because the DME determines how much fuel is neeeded, larger injectors won't automatically flow more fuel; they have to be told to. If they did flow more you just be running rich.
But why the're different injectors for 318 / 325?

BTW, it's right the DME controls the flow!
__________________
BMW '96 M3 (SOLD)
June 2005 Car Of The Month!
Quote:
Originally Posted by Torque
I was just dropped off here by aliens one day. They got bored with me.
dutchbmw is offline   Reply With Quote
Old 04-02-2004, 11:28 AM   #11 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
According to my book they arent any different. They operate at the same pressure.

The logic that the i6 needs bigger injectors to produce more power is flawed. The i6 produces more power because it has 2 more cylinders, but does not need more fuel flow to do so.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 04-02-2004, 11:43 AM   #12 (permalink)
n00b
 
Join Date: Mar 2004
Location: Sheboygan, WI
Car:
Posts: 10
Photos:
Positive5 is an unknown quantity at this point
Now when you say "controls the flow" you are talking about pulse width? I would assume because the pressure is controled by the regulator so because the DME reads the signal from the MAF, all conversions for baro.,temp. and speed are all accounted for. SO adding bigger injector wont have a power gain unless it is running lean for some other reason.
Positive5 is offline   Reply With Quote
Old 04-02-2004, 11:57 AM   #13 (permalink)
Super Moderator
 
dutchbmw's Avatar
 
Join Date: Dec 2003
Location: SW Minnesota
Car:
Posts: 5,370
Photos:
dutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond repute
Send a message via AIM to dutchbmw
Here a copy of my book:
Attached Thumbnails
What size injectors are on the 318 and 325/328?-injectors.jpg  
__________________
BMW '96 M3 (SOLD)
June 2005 Car Of The Month!
Quote:
Originally Posted by Torque
I was just dropped off here by aliens one day. They got bored with me.
dutchbmw is offline   Reply With Quote
Old 04-03-2004, 12:10 AM   #14 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
interesting. I do not have my camera at home, but I shall take a pic of my manual on monday that says they are the same.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 04-03-2004, 09:49 AM   #15 (permalink)
Super Moderator
 
dutchbmw's Avatar
 
Join Date: Dec 2003
Location: SW Minnesota
Car:
Posts: 5,370
Photos:
dutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond repute
Send a message via AIM to dutchbmw
Even I don't if M50 is different from the VANOS engines, the info in my book is from the M50 engine!! I thought the M52 is VANOS??
__________________
BMW '96 M3 (SOLD)
June 2005 Car Of The Month!
Quote:
Originally Posted by Torque
I was just dropped off here by aliens one day. They got bored with me.
dutchbmw is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 11:10 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.