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
      08-05-2013, 11:45 AM   #925
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

oh, and I'm going to hide the meth injection kit by using the windshield washer tank as the reservoir, and hiding the pump inside the bumper. Also plan to get it running on concentrated windshield washer fluid which is 30% methanol, and cheap enough to run daily. I guess within the next 3 weeks or so
__________________
ZStig is offline  
0
Reply With Quote
      08-05-2013, 01:01 PM   #926
seank
enthusiast
 
seank's Avatar
 
Drives: e30 m3,e90 wagon,sprinter,z4m
Join Date: Dec 2011
Location: sacramento, ca

Posts: 1,476
iTrader: (3)

Quote:
Originally Posted by ZStig View Post
oh, and I'm going to hide the meth injection kit by using the windshield washer tank as the reservoir, and hiding the pump inside the bumper. Also plan to get it running on concentrated windshield washer fluid which is 30% methanol, and cheap enough to run daily. I guess within the next 3 weeks or so
Please take pics of the install for us. I look forward to seeing this.
seank is offline  
0
Reply With Quote
      08-05-2013, 01:32 PM   #927
dorifto88
Major
 
Drives: 88 Nissan Pathfinder
Join Date: May 2010
Location: cowtown

Posts: 1,022
iTrader: (2)

any ideas as to where you are going to go for the tune?
dorifto88 is offline  
0
Reply With Quote
      08-05-2013, 05:20 PM   #928
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Quote:
Originally Posted by dorifto88 View Post
any ideas as to where you are going to go for the tune?
Probably a local dyno. I want something custom, not an off-the-shelf tune.
__________________
ZStig is offline  
0
Reply With Quote
      08-05-2013, 07:38 PM   #929
pokeybritches
Lieutenant Colonel
 
pokeybritches's Avatar
 
Drives: G-Power Z4M, VF Z4 3.0i, ZJ
Join Date: Sep 2009
Location: Gulf Coast, USA

Posts: 1,807
iTrader: (10)

Garage List
2006 BMW Z4M  [0.00]
2003 BMW Z4 3.0i  [4.33]
Quote:
Originally Posted by ZStig View Post
oh, and I'm going to hide the meth injection kit by using the windshield washer tank as the reservoir, and hiding the pump inside the bumper. Also plan to get it running on concentrated windshield washer fluid which is 30% methanol, and cheap enough to run daily. I guess within the next 3 weeks or so
Windshield washer fluid varies in its methanol content. Some of the colder fluids are 50/50.
__________________
pokeybritches is offline   Afghanistan
0
Reply With Quote
      08-05-2013, 07:52 PM   #930
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Quote:
Originally Posted by pokeybritches View Post
Windshield washer fluid varies in its methanol content. Some of the colder fluids are 50/50.
Very hard to find something rated below -20* which is around 30% meth content, especially in Florida
__________________
ZStig is offline  
0
Reply With Quote
      08-05-2013, 10:29 PM   #931
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Here's what my cutouts sounds with no cats, at partial throttle. They're now blocked off though, as they're for sale.

__________________
ZStig is offline  
0
Reply With Quote
      08-06-2013, 08:06 PM   #932
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

very odd, apparently my "old" belt was a 6pk2300. My ESS parts list shows it using a 6pk2315 so that's what I put in. Logic would say that this is a 15mm longer belt right?

I did a bunch of pulls and I'm getting a clean 7 to 8psi in 2nd gear at 7900rpm, but only hitting a max of 6psi on top of third gear... Slow boost leak, belt slip, or the rubber around the fittings on the air lines going to the boost gauge are old and maybe leaking there.

The new Continental Contitech 6pk2315 doesn't feel any tighter either. I think I was seeing similar boost numbers on the old no-name belt today actually..


ugh.....
__________________
ZStig is offline  
0
Reply With Quote
      08-06-2013, 11:33 PM   #933
seank
enthusiast
 
seank's Avatar
 
Drives: e30 m3,e90 wagon,sprinter,z4m
Join Date: Dec 2011
Location: sacramento, ca

Posts: 1,476
iTrader: (3)

Quote:
Originally Posted by ZStig View Post
very odd, apparently my "old" belt was a 6pk2300. My ESS parts list shows it using a 6pk2315 so that's what I put in. Logic would say that this is a 15mm longer belt right?

I did a bunch of pulls and I'm getting a clean 7 to 8psi in 2nd gear at 7900rpm, but only hitting a max of 6psi on top of third gear... Slow boost leak, belt slip, or the rubber around the fittings on the air lines going to the boost gauge are old and maybe leaking there.

The new Continental Contitech 6pk2315 doesn't feel any tighter either. I think I was seeing similar boost numbers on the old no-name belt today actually..


ugh.....
Mine says 2360. Now I am confused. I checked twice and it definitely says 6pk2360.

Last edited by seank; 08-06-2013 at 11:39 PM.
seank is offline  
0
Reply With Quote
      08-07-2013, 06:58 AM   #934
Beedub
Brigadier General
 
Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

Posts: 3,901
iTrader: (0)

When I get home ill check the belt on my car ....
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Beedub is offline   United Kingdom
0
Reply With Quote
      08-07-2013, 09:01 AM   #935
Beedub
Brigadier General
 
Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

Posts: 3,901
iTrader: (0)

my belt says...



no belt slip at all...
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Beedub is offline   United Kingdom
0
Reply With Quote
      08-07-2013, 09:01 PM   #936
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Quote:
Originally Posted by Beedub View Post
my belt says...



no belt slip at all...
5mm smaller than mine

girls probably won't notice

I'm gonna double check my pulley sizes to make sure everything is correct, these recent vt2-525 threads are scaring me.

I think my AEM meth kit's pump AND controller are dead. I'll have a shop confirm it. for fucks sake, I have only used it for a few days in the last 2 years, and already replaced the controller box once. Hope it was less than 1 year ago, and under warranty. Aem says they'll give me a discount on a replacement if over 1 year
__________________
ZStig is offline  
0
Reply With Quote
      08-07-2013, 09:31 PM   #937
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Finally some luck, I have 3 weeks of warranty left on AEM's meth controller box, I'll get a replacement free of charge. The pump is only like $67.

I'll be cleaning up my ghetto install too.
__________________
ZStig is offline  
0
Reply With Quote
      08-07-2013, 09:38 PM   #938
seank
enthusiast
 
seank's Avatar
 
Drives: e30 m3,e90 wagon,sprinter,z4m
Join Date: Dec 2011
Location: sacramento, ca

Posts: 1,476
iTrader: (3)

Quote:
Originally Posted by ZStig View Post
5mm smaller than mine

girls probably won't notice

I'm gonna double check my pulley sizes to make sure everything is correct, these recent vt2-525 threads are scaring me.

I think my AEM meth kit's pump AND controller are dead. I'll have a shop confirm it. for fucks sake, I have only used it for a few days in the last 2 years, and already replaced the controller box once. Hope it was less than 1 year ago, and under warranty. Aem says they'll give me a discount on a replacement if over 1 year
What I can't figure out is how my belt is 2360 (vs 2310 it's suppose to be) and they are going to send a larger crank pulley. How's that going to fit?
seank is offline  
0
Reply With Quote
      08-07-2013, 11:26 PM   #939
pandusr
Enlisted Member
 
pandusr's Avatar
 
Drives: BMW Z4M Roadster ESS CFR 525
Join Date: Mar 2012
Location: Italia

Posts: 32
iTrader: (0)

Quote:
Originally Posted by seank View Post
What I can't figure out is how my belt is 2360 (vs 2310 it's suppose to be) and they are going to send a larger crank pulley. How's that going to fit?
Probably you've never been able to take advantage of the kit. To increase the speed of the compressor you can:
-reduce the pulley on the compressor or increase the lower pulley.

... maybe you had posted/installed the belt correct with a wrong low puleghia.
__________________
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"
pandusr is offline   Italy
0
Reply With Quote
      08-10-2013, 11:34 AM   #940
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Secondary air pump removed, Lang Racing blockoff plate. 4.25lbs saved from the front-end. No check engine light
Attached Images
 
__________________
ZStig is offline  
0
Reply With Quote
      08-10-2013, 06:44 PM   #941
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Ok, I checked my measurements, and I have a 3.33" pulley (edge to edge since the ribs come up to same level), and 130mm crank pulley.

I think my hydraulic belt tensioner is tight enough, but my belt should be 5-10mm shorter to that there's less slack. Am I correct in assuming that a 2315 belt is exactly 5mm longer than a 2310 belt?

Either way, I'm ordering a 141mm Jaws crank pulley soon , so I'll need a different belt
__________________
ZStig is offline  
0
Reply With Quote
      08-10-2013, 07:36 PM   #942
Rated M Roadster
Captain
 
Rated M Roadster's Avatar
 
Drives: 2011 X5M
Join Date: Jun 2011
Location: ABQ

Posts: 676
iTrader: (7)

Quote:
Originally Posted by ZStig View Post
Either way, I'm ordering a 141mm Jaws crank pulley soon , so I'll need a different belt
That will take you to exactly 570 spec (impeller speed wise; 48000rpm).
__________________

Z4MR ll VF570 470whp 344wtq ll AA headers
RE X-pipe ll Stromung ll APEX ARC-8 on PSS
Stoptech 6pot Fr ll H&R coilovers ll APEX stud kit
Aero skirts ll Passport SRX
Rated M Roadster is offline  
0
Reply With Quote
      08-11-2013, 12:18 AM   #943
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Quote:
Originally Posted by Rated M Roadster View Post
That will take you to exactly 570 spec (impeller speed wise; 48000rpm).
hope so!
__________________
ZStig is offline  
0
Reply With Quote
      08-11-2013, 09:34 PM   #944
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

I'm using Vortech's V-3 calculator, using engine speed of 8000. Are my numbers off? Honestly, I'm not sure what my peak boost is right now. I'm hitting 8 in second, but only 6.5 in 3rd...
Attached Images
 
__________________
ZStig is offline  
0
Reply With Quote
      08-12-2013, 12:18 AM   #945
seank
enthusiast
 
seank's Avatar
 
Drives: e30 m3,e90 wagon,sprinter,z4m
Join Date: Dec 2011
Location: sacramento, ca

Posts: 1,476
iTrader: (3)

Who is unk? Also, shouldn't the boost increase as you move down the chart?
seank is offline  
0
Reply With Quote
      08-12-2013, 09:50 AM   #946
ZStig
Major General
 
Drives: VT2-500 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL

Posts: 7,174
iTrader: (3)

Quote:
Originally Posted by seank
Who is unk? Also, shouldn't the boost increase as you move down the chart?
Unk is some stats I found online. Yes, boost should increase, hence my confusion
__________________
ZStig is offline  
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 10:35 AM.




zpost
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