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
Sorting out door panel...
09-08-2020 04:13 AM
Last post by goku7642
Today 06:53 AM
3 Replies, 652 Views
1998 318ti for sale
09-20-2020 03:17 AM
Last post by jimcville
Yesterday 09:38 PM
4 Replies, 364 Views
bmw e36 3 series repair...
08-26-2020 03:55 PM
Last post by austinindian
09-21-2020 03:28 PM
2 Replies, 714 Views
1995 318Ti Sport
08-22-2020 03:24 AM
Last post by JimWW
09-20-2020 07:52 PM
11 Replies, 1,733 Views
180K MILES M42 Motor and...
09-20-2020 07:52 AM
Last post by jahnaboi
09-20-2020 07:52 AM
0 Replies, 191 Views
Center high mount tail...
12-26-2003 03:33 PM
Last post by fieldhb
09-19-2020 05:18 PM
7 Replies, 1,884 Views
New club member..
09-17-2020 04:42 AM
Last post by SoundinBetween
09-17-2020 11:34 PM
3 Replies, 490 Views
318ti parts
06-09-2020 12:00 AM
Last post by Mark96CaliRoof
09-16-2020 12:07 AM
32 Replies, 7,821 Views
The 318ti OBD-II engine...
10-19-2006 06:48 PM
Last post by djljs32
09-15-2020 08:38 PM
156 Replies, 109,023 Views
VIN number decoding
09-30-2007 04:07 PM
Last post by bpalmer
09-14-2020 03:44 PM
2,264 Replies, 593,000 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 06-04-2018, 07:19 PM   #1
slowoldpoop
Member
 
Join Date: Oct 2011
Location: cedar rapids iowa
Posts: 79
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, 02:30 PM   #2
spidertri
Senior Member
 
spidertri's Avatar
 
Join Date: Apr 2007
Location: Elizabeth City, NC
Posts: 3,877
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
11 128i space gray slicktop
13 JGC WK2 Deep Cherry

Search | RealOEM
spidertri is offline   Reply With Quote
Old 06-06-2018, 03:07 AM   #3
slowoldpoop
Member
 
Join Date: Oct 2011
Location: cedar rapids iowa
Posts: 79
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 02:46 AM
Having problem with power and starting Freak1 Misc 1 01-05-2011 10:13 PM
Intermittent starting problem theredchaser Electrical 2 02-25-2010 04:49 PM
'95 318ti Starting Problem s_menezes Electrical 20 02-05-2009 08:43 PM
problem starting car on occasions hotmilk400 Engine 3 12-16-2008 11:08 PM


All times are GMT +1. The time now is 04:41 PM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2020, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 78.68 k/90.58 k (13.14%)]

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