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


Go Back   ZPOST > BMW Z4 Technical Talk > Engine, Exhaust, Drivetrain Modifications
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      05-31-2013, 08:55 PM   #1
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Aeromotive Stealth 340 install for my VT-525 Z4M

Hello all just thought I'd post some pics from my install of the Aeromotive 340 fuel pump in my freshly upgraded VT-525 running cattless supersprint V2 stepped headers. I decide to proceed with this as my car has had some fueling issues on track at high RPM's when transitioning to full throttle from maintenance on long high speed sweepers that was not fuel level dependent (car would go into the 'Yellow brake light' full power cut limp mode which requires a restart". There was always no codes on the DME from these limp modes and it was something I only could reproduce on track.This would occur approximately every 50 or so laps in the exact same situation. After I upgraded to the VT-525 from the Vt-445 my first track day was a bit of a wash bc I literally happened every single hot lap in the same situation as before. On the street I def noticed the much stronger midrange torque of the 525 kit but was not impressed with it after 6k. After a lot of phone calls and trouble shooting I decided to upgrade my fuel pump as it has some age on it and I was near the limit of power for the stock pump anyway. I am waiting for my new DKF midpipe to come in so I haven't installed my wideband AFR yet . Yes i know it would have sorted this out much quicker. At any rate after the fuel pump install the car is Much Much Faster especially over 6k rpm on the street. I have 285 sport cups on it and before the pump could not break loose in 2nd gear to save my life (I have 4.10 gears too) and now it shreds it!! I am very happy with the kit now and look forward to objective testing at Roebling next weekend. I will post temps, segment speed deltas and lap time deltas. ESS did a very nice job on the throttle mapping which is much improved over the VT-1 ( sport mode is not useless now , and regular response is sharper) all with no perceptable increase in throttle lag over VT-1.
At any rate here are the pics of the install!
Attached Images
    
Appreciate 0
      06-01-2013, 11:03 AM   #2
ZStig
instagram 997turbotom
279
Rep
7,376
Posts

Drives: Interlagos Z4MR
Join Date: Jun 2008
Location: Delray Beach, FL

iTrader: (4)

is this anything like the walbro 255 in-line pump booster? how many hours to install?
__________________
Appreciate 0
      06-01-2013, 11:22 AM   #3
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by ZStig View Post
is this anything like the walbro 255 in-line pump booster? how many hours to install?
No this is an in tank pump vs the Walbro in line you mentioned. It also can flow much better at the high psi our fuel system runs at. Walbro makes very good pumps this one is just better, and perfect for an in tank replacement for the Z4M. The install itself took around 4 hours , bc we had to drop the rear diffuser take down the exhaust etc. ,before dropping the tank. It hooks up electrically very easily , but you do have to mod it to sit in the stock basket. The oem pump has a bit of a neck on it while the stealth does not . So we used a clamp and screw setup to secure it in the stock position in the basket. Not a bad install. People do make sleeve kits for the stealth that work for the E46 M3 fuel basket which i believe is very similar to ours if you want a plug and play solution. I included a flier from a company that sells a kit.
Attached Images
  
Appreciate 0
      06-01-2013, 11:46 AM   #4
ZStig
instagram 997turbotom
279
Rep
7,376
Posts

Drives: Interlagos Z4MR
Join Date: Jun 2008
Location: Delray Beach, FL

iTrader: (4)

Quote:
Originally Posted by gmd2003 View Post
No this is an in tank pump vs the Walbro in line you mentioned. It also can flow much better at the high psi our fuel system runs at. Walbro makes very good pumps this one is just better, and perfect for an in tank replacement for the Z4M. The install itself took around 4 hours , bc we had to drop the rear diffuser take down the exhaust etc. ,before dropping the tank. It hooks up electrically very easily , but you do have to mod it to sit in the stock basket. The oem pump has a bit of a neck on it while the stealth does not . So we used a clamp and screw setup to secure it in the stock position in the basket. Not a bad install. People do make sleeve kits for the stealth that work for the E46 M3 fuel basket which i believe is very similar to ours if you want a plug and play solution. I included a flier from a company that sells a kit.
seems like a GREAT bang for the buck. It replaces the stock in-tank OEM pump? Looks like you get it installed for under $600 out the door, or do myself

You should definitely dyno your car now
__________________
Appreciate 0
      06-01-2013, 12:00 PM   #5
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by ZStig View Post
seems like a GREAT bang for the buck. It replaces the stock in-tank OEM pump? Looks like you get it installed for under $600 out the door, or do myself

You should definitely dyno your car now
Yes sir it's not bad at all, not many good dyno options in the Charleston area (all are mostly for american muscle, crappy fans,no familiarity with our cars ,etc.)but I did get a dyno when I was stock with SS headers and a tune. It was a pretty low reading dynojet I was 280/240 with headers and a tune (But it was 110 in there that day lol with a small room fan) so it might be pretty accurate. Maybe I'll take it back there and see what it will do. My favorite test to be honest is 60-130 delta . NA with headers and a tune it was 12.1 seconds and with the Vt-1 kit in the same location similar conditions it was 10.5 seconds. I would expect I should definitely be in the 9's now. Ar any rate I'll be back at roebling road next weekend so I'll hopefully get good comparison data to my VT-1 kit. It will be in 90's so this will be a good test of the system in general. I'm certain thought the Setrab oil cooler unit is inferior to the custom M6 oil cooler I was running with my VT-1 kit but there just wasn't room for that massive thing with the intercooler in place. I will let everyone know how she does!
Appreciate 0
      06-01-2013, 08:18 PM   #6
DRedman45
Lieutenant
DRedman45's Avatar
35
Rep
441
Posts

Drives: E86 //M coupe
Join Date: Oct 2012
Location: Northern va

iTrader: (0)

My buddy runs aeromotive on his 500+ hp ti...they are great pumps for sure
__________________
2007 //M Coupe. BSM. Fabspeed headers. Catless. BMS x-pipe. Strömung cans. evolve tune. Turner CSL airbox. Airrex air suspension with autopilot v2 management.

My Build Thread
Appreciate 0
      06-01-2013, 10:42 PM   #7
seank
enthusiast
seank's Avatar
48
Rep
1,695
Posts

Drives: e30 m3,e90 wagon,sprinter,z4m
Join Date: Dec 2011
Location: sacramento, ca

iTrader: (4)

Has anyone else had this issue with the 525? Why did you not opt to try a new oem fuel pump, since your was old and worn? How many miles were on your fuel pump? Jut ordered one, so I want to be prepared for any future issues. Thanks
Appreciate 0
      06-02-2013, 06:19 AM   #8
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by seank
Has anyone else had this issue with the 525? Why did you not opt to try a new oem fuel pump, since your was old and worn? How many miles were on your fuel pump? Jut ordered one, so I want to be prepared for any future issues. Thanks
There are only 3 running 525 kits out there as we speak , and none of them are set up like my car with supersprint headers , and none have had issues yet.... . My pump had 20,000 miles on it , I had replaced the original stock one when I purchased the car used and started setting it up for the track . I just wanted to take the pump capacity out of the equation . the general consensus is over 550 HP is the limit for the stock pump , and I didn't want to have a marginal situation . With SS stepped headers my 525 should be 550.
George
Appreciate 0
      06-02-2013, 12:33 PM   #9
seank
enthusiast
seank's Avatar
48
Rep
1,695
Posts

Drives: e30 m3,e90 wagon,sprinter,z4m
Join Date: Dec 2011
Location: sacramento, ca

iTrader: (4)

Well, it will be 4 in a few weeks
Appreciate 0
      06-02-2013, 12:35 PM   #10
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by seank
Well, it will be 4 in a few weeks
Congrats Sean !! How many miles on your beast ?
Appreciate 0
      06-02-2013, 09:20 PM   #11
Str8 RippiN
First Lieutenant
Str8 RippiN's Avatar
46
Rep
398
Posts

Drives: E46 ZCP ///M3
Join Date: Dec 2011
Location: Pacific Beach

iTrader: (4)

i currently have the 445 and i'm thinking about going 525, would you say it was worth it? and is the pump a necessity? I have euro/csl headers and was thinking about going epics as well. Interested to hear your thoughts!
__________________
-Tommy

"The Zillenium Falcon" mod journal - http://www.m3forum.net/m3forum/showthread.php?t=440670
Appreciate 0
      06-03-2013, 09:36 PM   #12
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by Str8 RippiN
i currently have the 445 and i'm thinking about going 525, would you say it was worth it? and is the pump a necessity? I have euro/csl headers and was thinking about going epics as well. Interested to hear your thoughts!
It's a lot more midrange , the torque is more of an increase from VT-1 to VT-2 525 than it was going from stock to VT-1. They also did a very nice job with the throttle mapping and making the tune smoother. It is however a very expensive upgrade charge for an intercooler a tune and an oil cooler . I wish I was stock then the VT-2 525 is a fantastic value , but the upgrade not so much. I really wanted to run intercooled bc of the severe heat soak on track due to high IAT's with my VT-1 so I didn't have a choice. Even with a M6 oil cooler which kept my oil temps down to 230 range , having IAT's near 200 towards the end of a session would rob 6 mph off my straight speed. Now that my car is running correctly I will post a track review after this coming weekend at Roebling Road. I needed a better fuel pump with my setup , ESS claims that it is not necessary though .
Appreciate 0
      06-03-2013, 10:15 PM   #13
seank
enthusiast
seank's Avatar
48
Rep
1,695
Posts

Drives: e30 m3,e90 wagon,sprinter,z4m
Join Date: Dec 2011
Location: sacramento, ca

iTrader: (4)

She has 50,000 miles.


Quote:
Originally Posted by gmd2003 View Post
It's a lot more midrange , the torque is more of an increase from VT-1 to VT-2 525 than it was going from stock to VT-1. They also did a very nice job with the throttle mapping and making the tune smoother. It is however a very expensive upgrade charge for an intercooler a tune and an oil cooler . I wish I was stock then the VT-2 525 is a fantastic value , but the upgrade not so much. I really wanted to run intercooled bc of the severe heat soak on track due to high IAT's with my VT-1 so I didn't have a choice. Even with a M6 oil cooler which kept my oil temps down to 230 range , having IAT's near 200 towards the end of a session would rob 6 mph off my straight speed. Now that my car is running correctly I will post a track review after this coming weekend at Roebling Road. I needed a better fuel pump with my setup , ESS claims that it is not necessary though .
Wouldn't the best set- up for track be the 445 but with the 525 intercoolers and oil cooler upgrade? That combined with a lower thermostat should keep you running cool.
Appreciate 0
      06-03-2013, 11:21 PM   #14
pokeybritches
Colonel
pokeybritches's Avatar
United_States
479
Rep
2,782
Posts

Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles

iTrader: (12)

Garage List
2006 BMW Z4M  [10.00]
2006 BMW Z4M  [8.50]
2003 BMW Z4 3.0i  [9.00]
Quote:
Originally Posted by gmd2003 View Post
It's a lot more midrange , the torque is more of an increase from VT-1 to VT-2 525 than it was going from stock to VT-1. They also did a very nice job with the throttle mapping and making the tune smoother. It is however a very expensive upgrade charge for an intercooler a tune and an oil cooler . I wish I was stock then the VT-2 525 is a fantastic value , but the upgrade not so much. I really wanted to run intercooled bc of the severe heat soak on track due to high IAT's with my VT-1 so I didn't have a choice. Even with a M6 oil cooler which kept my oil temps down to 230 range , having IAT's near 200 towards the end of a session would rob 6 mph off my straight speed. Now that my car is running correctly I will post a track review after this coming weekend at Roebling Road. I needed a better fuel pump with my setup , ESS claims that it is not necessary though .
Did you consider using WMI?
__________________


VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
Appreciate 0
      06-03-2013, 11:23 PM   #15
pokeybritches
Colonel
pokeybritches's Avatar
United_States
479
Rep
2,782
Posts

Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles

iTrader: (12)

Garage List
2006 BMW Z4M  [10.00]
2006 BMW Z4M  [8.50]
2003 BMW Z4 3.0i  [9.00]
Quote:
Originally Posted by Str8 RippiN View Post
i currently have the 445 and i'm thinking about going 525, would you say it was worth it? and is the pump a necessity? I have euro/csl headers and was thinking about going epics as well. Interested to hear your thoughts!
Beware that ESS require Euro/CSL headers. Many people have had problems with other headers, even with NA tunes. ESS claim it's the primary O2 placement.
__________________


VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
Appreciate 0
      06-04-2013, 05:01 AM   #16
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by pokeybritches
Quote:
Originally Posted by Str8 RippiN View Post
i currently have the 445 and i'm thinking about going 525, would you say it was worth it? and is the pump a necessity? I have euro/csl headers and was thinking about going epics as well. Interested to hear your thoughts!
Beware that ESS require Euro/CSL headers. Many people have had problems with other headers, even with NA tunes. ESS claim it's the primary O2 placement.
I had no problems at all with my headers with their NA tune with SS V2 headers . They are essentially the same as csl headers in design. Also the EAS test car for the 525 kit has headers that are non CSL and have had no problems . The whole Euro csl only stuff was silly excuse in my opinion . The individual who was having problems that everyone claimed was his headers , actually had a problem with his tune .
Appreciate 0
      06-04-2013, 01:48 PM   #17
Beedub
Major General
United Kingdom
423
Rep
5,327
Posts

Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

iTrader: (0)

really pleased to see someone do this.... fits like a glove!!!
any pics of the stock pump if possible please????
__________________
Z4MR VT2 - Clubsport build.
Multi award winning Detailing | Wrap | PPF specialists UK based - www.topwrapz.com
Appreciate 0
      06-04-2013, 02:31 PM   #18
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by Beedub View Post
really pleased to see someone do this.... fits like a glove!!!
any pics of the stock pump if possible please????
Thanks Beedub, I wasn't planning on it but it was the one thing that made sense in diagnosing my problem, and it has seemed to workout well. The increase in midrange and especially top end power on the street leads me to believe i was correct. Won't know for certain until I hit the track this weekend though. Sorry i didn't take pics of the stock pump, but it is similar in dimensions to the Stealth. It just has a bit of a neck too it and is slightly larger in circumference , the center pickup and electrical hookups are identical.
George
Appreciate 0
      06-04-2013, 03:39 PM   #19
pandusr
Enlisted Member
pandusr's Avatar
Italy
4
Rep
33
Posts

Drives: BMW Z4M Roadster ESS CFR 525
Join Date: Mar 2012
Location: Italia

iTrader: (0)

Excellent. Thanks for sharing.

The fuel pressure of my car (5 bar) decreases in full acceleration. Does not have sufficient capacity.

which fuel-pressure you had before and after the change?

which model do you have installed?
11140 center inlet?
11141 offset inlet ?
11142 inline inlet?
__________________
Z4M E85/2006 || ESS CFR525 || AEM Water / Methanol Injection Kits || Supersprint Exhaust (catless,XPipe,rear exhaust race) || 4.10 || front brake AP Racing 6 piston kit (cp5575-1010) || K-Sport suspension with camber plates || Sparco Pro2000 seat || 6 pti Sparco belts -|| Hankook S1 EVO 1 (front 245/35 19 - rear 275/35 19) || OZ Racing Ultraleggera HLT 19"

Last edited by pandusr; 06-04-2013 at 04:00 PM..
Appreciate 0
      06-04-2013, 04:04 PM   #20
gmd2003
Colonel
gmd2003's Avatar
352
Rep
2,176
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by pandusr View Post
Excellent. Thanks for sharing.

The fuel pressure of my car (5 bar) decreases in full acceleration. Does not have sufficient capacity.

which fuel-pressure you had before and after the change?

which model do you have installed?
11140 center inlet?
11141 offset inlet ?
11142 inline inlet?
I still have the 5 bar stock regulator , and the Z4M requires the center inlet version of the pump.
Appreciate 0
      06-04-2013, 04:41 PM   #21
Beedub
Major General
United Kingdom
423
Rep
5,327
Posts

Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

iTrader: (0)

Quote:
Originally Posted by gmd2003 View Post
I still have the 5 bar stock regulator , and the Z4M requires the center inlet version of the pump.
should we be doing anything with the fuel regulator with this pump??? wondering if its possible to put to much fuel through the stock unit??

i have no idea if thats even possible just throwing thoughts around???
__________________
Z4MR VT2 - Clubsport build.
Multi award winning Detailing | Wrap | PPF specialists UK based - www.topwrapz.com
Appreciate 0
      06-04-2013, 04:49 PM   #22
pandusr
Enlisted Member
pandusr's Avatar
Italy
4
Rep
33
Posts

Drives: BMW Z4M Roadster ESS CFR 525
Join Date: Mar 2012
Location: Italia

iTrader: (0)

Quote:
Originally Posted by gmd2003 View Post
I still have the 5 bar stock regulator , and the Z4M requires the center inlet version of the pump.
Thanks !!!!
__________________
Z4M E85/2006 || ESS CFR525 || AEM Water / Methanol Injection Kits || Supersprint Exhaust (catless,XPipe,rear exhaust race) || 4.10 || front brake AP Racing 6 piston kit (cp5575-1010) || K-Sport suspension with camber plates || Sparco Pro2000 seat || 6 pti Sparco belts -|| Hankook S1 EVO 1 (front 245/35 19 - rear 275/35 19) || OZ Racing Ultraleggera HLT 19"
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



All times are GMT -5. The time now is 10:34 AM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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