318ti.org forum

Go Back   318ti.org forum > Garage > Track, Auto-X & Drag Racing

Notices

Track, Auto-X & Drag Racing Discuss "organized" racing, car set-ups, driving techniques, track tips, events, driving schools, maintenance and more.

.
» Recent Threads
1996 M44 Crank, no...
10-18-2018 10:36 PM
Last post by 318tiFatherFigure
Today 08:03 PM
7 Replies, 886 Views
New ti owner from Chicago
10-12-2018 10:28 PM
Last post by K12Pilot
Today 01:31 PM
7 Replies, 1,074 Views
names for your TI
10-08-2004 04:48 AM
Last post by andakn
Today 02:38 AM
347 Replies, 82,262 Views
Age Demographics
10-30-2004 05:06 AM
Last post by Locus7
Yesterday 03:04 AM
322 Replies, 87,904 Views
FS: 1998 Black BMW 318ti...
10-29-2016 07:52 AM
Last post by winky
11-18-2018 11:31 PM
12 Replies, 8,975 Views
What model ti do you own?
02-26-2003 04:40 AM
Last post by K12Pilot
11-18-2018 01:51 PM
324 Replies, 108,423 Views
New to the Ti but not...
11-18-2018 01:48 PM
Last post by K12Pilot
11-18-2018 01:48 PM
0 Replies, 98 Views
Long time swapped to...
11-16-2018 04:12 AM
Last post by Toolmaker
11-18-2018 03:04 AM
2 Replies, 231 Views
FS Black 1997 318ti...
11-09-2018 01:05 AM
Last post by tmca
11-17-2018 09:14 PM
4 Replies, 921 Views
205/60r16 tires on model...
11-17-2018 06:02 PM
Last post by mrmikkelsen
11-17-2018 06:02 PM
0 Replies, 155 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 06-04-2018, 08:19 PM   #1
slowoldpoop
Member
 
Join Date: Oct 2011
Location: cedar rapids iowa
Posts: 75
Vehicles
iTrader: (0)
Default Supercharged 332ti starting problem

I have a '96 318ti with a '97 M3 motor (built by a shop in Jacksonville, FL). Engine mods include a M50 manifold, cats removed, Shrick cams and Turner Stage 3.

A local BMW shop installed an Active Autowerke supercharger (thus replacing the Turner Stage 3 stuff). The car runs very strong--except when I shut it off, it won't restart.

We discovered, when checking fuel pressures, that if we cut power to the fuel pump, it starts! By watching the gauge, we see that the engine cranks for a few seconds until fuel pressure at the fuel rail drops to 20 psi, and then it starts. So now I have a switch to turn off the fuel pump and I'm getting by.

But I'd sure like to make it right. Before the supercharger, the car ran like a clock.

We've been working with the Active Aerowerkes experts, and their opinion is that it's something very simple--like something is mis-plumbed--but nobody can figure it out. We wonder if there's something different between 318ti and E36 fuel plumbing that could be causing this. Or if the M50 intake manifold is different from the E36 manifold the supercharger is designed for.

Here's some data:
45 psi at the fuel pump and fuel rail.
New fuel pump installed per Mike Miller's suggestion.
Seems to run rich.
82000 miles on M3 motor

Any ideas? Is there anybody in Iowa that REALLY knows BMWs?
slowoldpoop is offline   Reply With Quote
Old 06-05-2018, 03:30 PM   #2
spidertri
Senior Member
 
spidertri's Avatar
 
Join Date: Apr 2007
Location: Elizabeth City, NC
Posts: 3,832
Vehicles
iTrader: (9)
Default

Where is the fuel pressure regulator located after the swap?

I'm pretty sure the '96 M44 had the FPR located on the fuel rail while the '97 M3 had the FPR located under the driver seat. Was the M3 FPR added when you did the swap?
__________________
~Dave~

98 328ti Morea Grun slicktop
13 JGC WK2 Deep Cherry

Search | RealOEM
spidertri is offline   Reply With Quote
Old 06-06-2018, 04:07 AM   #3
slowoldpoop
Member
 
Join Date: Oct 2011
Location: cedar rapids iowa
Posts: 75
Vehicles
iTrader: (0)
Default

The FPR is under the driver seat. We have a new one, but haven't put it in yet.
We were wondering about all the goofy plumbing under there.
Don't forget--the car ran fine for 6 years BEFORE the supercharger.
slowoldpoop is offline   Reply With Quote
Reply

Bookmarks

Tags
332ti , fuel pressure , supercharger


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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
M44 intermittent starting problem markslc1 Engine 4 01-04-2014 03:46 AM
Having problem with power and starting Freak1 Misc 1 01-05-2011 11:13 PM
Intermittent starting problem theredchaser Electrical 2 02-25-2010 05:49 PM
'95 318ti Starting Problem s_menezes Electrical 20 02-05-2009 09:43 PM
problem starting car on occasions hotmilk400 Engine 3 12-17-2008 12:08 AM


All times are GMT +1. The time now is 11:29 PM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2018, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 78.34 k/90.22 k (13.17%)]

318ti.org does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or products discussed.