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
      12-05-2012, 07:01 AM   #1
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

so.... on the m3forum the Vt2-500 is making some pretty nice gains.....
It seems running catless/ 100 cell race cats, Re-tune is giving some pretty heavy power gains...
This is on a car with nearly 90k miles!!!!! No meth either......
heres the details copied straight over.... it shows me.... i need catless and now!!! Also Evolve are clearly taking the tune to the next level, id love to know how far its being pushed and how the safety margins look, either way, Take a look at this bad boi!!!

Euro headers/cats dyno was on September 13th, 2012: 440 rwhp, 304 lb/ft tq SAE.
SS V1 stepped / HJS cats dyno was on December 4th, 2012: 464 rwhp, 314 lb/ft tq SAE.

Same dyno, same dyno operator, same gear (4th), same tune, same fuel (91 U.S. piss with the highly coveted 10% ethanol mix).
A nice difference from the improved VE with the Supersprint setup!
Sending the info to Sal to maybe richen it up a bit in the upper RPM range.
So far (600 miles with the V1/HJS), no codes, no CEL.
Car runs perfectly; a treat to drive every time.

Downstream from the headers/cats is Supersprint X-pipe with resonator, and the SS Street muffler.
Upstream is a K&N RU-3130 air filter attached to a silicone hose with a 30 degree angle at the end.
This makes for an excellent fit over the top of a stock brake duct and in front of the wheel well cover.
No part of the filter is directly exposed to the elements, or blocking any airflow through the brake duct.

Big thanks to Alex (flipm3) for putting together the graph layout below.
I'll eventually get there, but wanted to post this sometime before the next century.

__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-05-2012, 07:09 AM   #2
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

464rwhp!!!!!! Wonderful.
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-05-2012, 07:52 AM   #3
tikamak
Captain
Lebanon
21

 
Drives: 2006 Z4M Roadster TiAG/black
Join Date: Jun 2011
Location: Beirut


Posts: 785
iTrader: (0)

Bro, you just made a post and replied on yourself :P
Appreciate 0
      12-05-2012, 08:38 AM   #4
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

I no!!!!!!, excitement got me !!!
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-05-2012, 10:18 AM   #5
SmartBastard
Stupid as shit
Austria
18

 
SmartBastard's Avatar
 
Drives: '08 M Coupe
Join Date: Jan 2011
Location: Vienna, Austria


Posts: 364
iTrader: (0)

Talking

Quote:
Originally Posted by Beedub View Post
464rwhp!!!!!! Wonderful.
Quote:
Originally Posted by Beedub View Post
Dyno figures are pretty inaccurate at the best of times, unless you take the motor out and do it on a engine dyno..... Then were talking ;-)


Very nice numbers tho
Appreciate 0
      12-05-2012, 10:41 AM   #6
tikamak
Captain
Lebanon
21

 
Drives: 2006 Z4M Roadster TiAG/black
Join Date: Jun 2011
Location: Beirut


Posts: 785
iTrader: (0)

Salman is a freak when it comes to tuning. he can really do magic.
I'll probably have him tune my ESS VT2-500 in the future if he doesn't ask for a lot of money.
Appreciate 0
      12-05-2012, 11:55 AM   #7
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

Quote:
Originally Posted by SmartBastard View Post


Very nice numbers tho

still stand by that statement.... its just a benchmark really..... at least guy has used the same dyno each time, used the same gear each time, its just an indicator at the end of the day however, but thanks anyway :-)

im just pleased their are gains to be had from catless, i was once told this isnt the case!!
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-05-2012, 11:56 AM   #8
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

Quote:
Originally Posted by tikamak View Post
Salman is a freak when it comes to tuning. he can really do magic.
I'll probably have him tune my ESS VT2-500 in the future if he doesn't ask for a lot of money.
have you seen the AFRs ??? not much room for error at all. what exactly are evolve doing to extract so much power from these kits.....
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-05-2012, 12:22 PM   #9
pokeybritches
Lieutenant Colonel
United_States
36

 
pokeybritches's Avatar
 
Drives: ESS/G-Power Z4M's, VF Z4 3.0i
Join Date: Sep 2009
Location: Alexandria, VA


Posts: 1,880
iTrader: (10)

Garage List
2006 BMW Z4M  [4.25]
2003 BMW Z4 3.0i  [4.50]
I'm adding the V1 stepped headers and HJS cats when I have my G-Power kit installed. Here's to some good gains
__________________
Appreciate 0
      12-05-2012, 12:44 PM   #10
ZStig
Major General
175

 
Drives: VT2-525 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL


Posts: 7,227
iTrader: (3)

Quote:
Originally Posted by tikamak View Post
Bro, you just made a post and replied on yourself :P
He pulled a "villanova"
__________________
Appreciate 0
      12-05-2012, 03:14 PM   #11
johanness
Banned
36

 
Drives: 2008 Z4MC
Join Date: Aug 2010
Location: Seattle, Vancouver


Posts: 1,741
iTrader: (3)

Garage List
Quote:
Originally Posted by pokeybritches
I'm adding the V1 stepped headers and HJS cats when I have my G-Power kit installed. Here's to some good gains
When's that going to be Pokey? You'll be the 1st stateside I take it?

Exciting
Appreciate 0
      12-05-2012, 03:29 PM   #12
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

Quote:
Originally Posted by pokeybritches
I'm adding the V1 stepped headers and HJS cats when I have my G-Power kit installed. Here's to some good gains
What are hjs cats??
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-05-2012, 03:30 PM   #13
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

Quote:
Originally Posted by ZStig
Quote:
Originally Posted by tikamak View Post
Bro, you just made a post and replied on yourself :P
He pulled a "villanova"
The only thing is missed was saying
"Just saying" after every word ;-)



Just saying.
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-05-2012, 05:05 PM   #14
SCHMOUPE
Lieutenant Colonel
United_States
27

 
SCHMOUPE's Avatar
 
Drives: 2007 Z4M Coupe
Join Date: Apr 2010
Location: NJ


Posts: 1,601
iTrader: (6)

Garage List
2007 Z4M Coupe  [0.00]
Quote:
Originally Posted by Beedub View Post
The only thing is missed was saying
"Just saying" after every word ;-)



Just saying.
JOTHOTTTT
__________________
The Raspinator

Gruppe M CAI / Euro Headers / Rogue Engineering X-pipe / RE Diablo Exhaust
Appreciate 0
      12-05-2012, 05:59 PM   #15
tikamak
Captain
Lebanon
21

 
Drives: 2006 Z4M Roadster TiAG/black
Join Date: Jun 2011
Location: Beirut


Posts: 785
iTrader: (0)

Quote:
Originally Posted by Beedub View Post
have you seen the AFRs ??? not much room for error at all. what exactly are evolve doing to extract so much power from these kits.....
What salman does exactly is adjust the timing and ignition of the engine to increase the dynamic compression inside the cylinder. What happens exactly is that he reduces the time where both intake and exhaust are open at the same time and the air is hovering by over the cylinder to a minimum. This produces more power as well as let's the engine breathe better and be efficient without getting into the knock limits.

He also uses better methods that are optimized as well as some other stuff he refused to share with me, but I do trust his tuning especially after I have discussed his methods with him and I have seen how my car behaves with his tune.

It's just that much better to drive, you can feel the engine behaving at its best.
Appreciate 0
      12-06-2012, 01:43 AM   #16
beta
Lieutenant Colonel
39

 
Drives: 2006 M Roadster
Join Date: Mar 2011
Location: CA


Posts: 1,655
iTrader: (2)

Quote:
Originally Posted by pokeybritches View Post
I'm adding the V1 stepped headers and HJS cats when I have my G-Power kit installed. Here's to some good gains
Can't wait to see. If g-power torque gains are confirmed it'll be the best low PSI kit on the market.
__________________
Appreciate 0
      12-06-2012, 10:36 AM   #17
pokeybritches
Lieutenant Colonel
United_States
36

 
pokeybritches's Avatar
 
Drives: ESS/G-Power Z4M's, VF Z4 3.0i
Join Date: Sep 2009
Location: Alexandria, VA


Posts: 1,880
iTrader: (10)

Garage List
2006 BMW Z4M  [4.25]
2003 BMW Z4 3.0i  [4.50]
Quote:
Originally Posted by johanness View Post
When's that going to be Pokey? You'll be the 1st stateside I take it?

Exciting
I believe I will be... at least the first on Zpost. My build date is scheduled as soon as I return from overseas - the first week in April.

Quote:
Originally Posted by Beedub
What are hjs cats??
HJS cats are the best cats money can buy. They're expensive, but I don't want to leave my car too illegal or deal with the rasp from a catless exhaust. Supersprint uses them in their catted section 1's.

Quote:
Originally Posted by beta
Can't wait to see. If g-power torque gains are confirmed it'll be the best low PSI kit on the market.
Me too! However, the SS V1 stepped headers are focused on high rpm power, so that may skew the results a bit. There would be a few hp difference in the midrange between the SS V1 stepped vs the SS standard headers (or AA/Euro/other aftermarket headers).
__________________
Appreciate 0
      12-06-2012, 12:23 PM   #18
Beedub
Brigadier General
United Kingdom
81

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


Posts: 4,031
iTrader: (0)

yeah i spoke to supersprint this morning.... wow.... those HJS cats are insane!!! seriously high end items right their..... their 100 cell cats are pretty awesome, i very nearly purchases them..... if the dkf option doesnt happen soon, im going to jump on these!! im hoping they wont introduce lots of rasp into the setup!!??

i was also told they would need to be hot for the car to pass emission tests.....

I didnt understand why these pipes were so expensive... Now i understand.....
__________________
Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.
Appreciate 0
      12-06-2012, 12:43 PM   #19
ZStig
Major General
175

 
Drives: VT2-525 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL


Posts: 7,227
iTrader: (3)

I'm gonna use Aero Turbine mufflers in place of my section 1 cats, should flow better than expensive 100 cell cats, and reduce rasp
__________________
Appreciate 0
      12-06-2012, 01:00 PM   #20
dorifto88
Major
25

 
Drives: 88 Nissan Pathfinder
Join Date: May 2010
Location: cowtown


Posts: 1,041
iTrader: (3)

Quote:
Originally Posted by Beedub View Post
yeah i spoke to supersprint this morning.... wow.... those HJS cats are insane!!! seriously high end items right their..... their 100 cell cats are pretty awesome, i very nearly purchases them..... if the dkf option doesnt happen soon, im going to jump on these!! im hoping they wont introduce lots of rasp into the setup!!??

i was also told they would need to be hot for the car to pass emission tests.....

I didnt understand why these pipes were so expensive... Now i understand.....
im in the same boat with pokey. if i can sell my fabspeeds i intend to get ss ver 1s and their catted section 1. is the dkf option 2.5 in the section 1?
Appreciate 0
      12-06-2012, 01:12 PM   #21
pokeybritches
Lieutenant Colonel
United_States
36

 
pokeybritches's Avatar
 
Drives: ESS/G-Power Z4M's, VF Z4 3.0i
Join Date: Sep 2009
Location: Alexandria, VA


Posts: 1,880
iTrader: (10)

Garage List
2006 BMW Z4M  [4.25]
2003 BMW Z4 3.0i  [4.50]
Quote:
Originally Posted by dorifto88 View Post
im in the same boat with pokey. if i can sell my fabspeeds i intend to get ss ver 1s and their catted section 1. is the dkf option 2.5 in the section 1?
Check out Custom Performance at http://www.custom-performance.net/pr...rt/pc/home.asp

I'd been talking with Jack about getting a custom section 1 using the Supersprint connecting pipe with HJS welded in, or a fully custom pipe for a little less. The SS pipe with HJS cats welded in by Custom Performance will cost ~$1k less than the catted section 1 from Supersprint.

It's still expensive, but better than a fine. I haven't been pulled over in about 5 years, but all it takes is one time with an observant cop smelling the vapors... Plus I want to remain somewhat emissions legal if I can. Cats do a better job of masking rasp than aeroturbines.
__________________
Appreciate 0
      12-06-2012, 07:15 PM   #22
ZStig
Major General
175

 
Drives: VT2-525 M Roadster
Join Date: Jun 2008
Location: Delray Beach, FL


Posts: 7,227
iTrader: (3)

What kind of mufflers do S54 "rasp pipes" use?
__________________
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
Forum Jump


All times are GMT -5. The time now is 02:58 PM.




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