Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

Running 35r on stock maf

Thread Tools
 
Search this Thread
 
Old Jan 1, 2009, 05:54 AM
  #1  
Newbie
Thread Starter
 
jamie_v1's Avatar
 
Join Date: Apr 2008
Location: u.k
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
Running 35r on stock maf

Hi guys is anyone running a gt35r on a stock maf i am running a gt3076 on stock maf at the minute and i have epoxyed the honeycomb in to give more support

I am wanting to know when running a 35r do people remove the honeycomb or leave it in place and if removed what effect does this have on the load that the ecu sees
Old Jan 1, 2009, 06:07 AM
  #2  
Evolved Member
iTrader: (35)
 
JakeTheVIII's Avatar
 
Join Date: May 2007
Location: Austin, TX
Posts: 1,754
Likes: 0
Received 0 Likes on 0 Posts
Lot's of people run them on stock MAF with nothing done to it.
Old Jan 1, 2009, 07:55 AM
  #3  
Newbie
Thread Starter
 
jamie_v1's Avatar
 
Join Date: Apr 2008
Location: u.k
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
Would there be an advantage removing the honeycomb also would the maf have to be rescaled
Old Jan 1, 2009, 07:59 AM
  #4  
Evolved Member
iTrader: (20)
 
6-speed's Avatar
 
Join Date: Apr 2003
Location: NY/Central NJ
Posts: 928
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by jamie_v1
Would there be an advantage removing the honeycomb also would the maf have to be rescaled
You can either search for posts from Mellon of Mellon Tuning or give him a call; I believe he's running a large turbo (HTA35R) on the stock ECU and MAF.

Very nice and helpful guy from all accounts by his customers.
Old Jan 1, 2009, 08:04 AM
  #5  
EvoM Guru
iTrader: (5)
 
MalibuJack's Avatar
 
Join Date: Feb 2003
Location: Royse City, TX
Posts: 10,569
Likes: 0
Received 9 Likes on 9 Posts
DO NOT REMOVE THE HONEYCOMB, it will ruin the sensor and foul up the metering and drivability.. Epoxy is a good safety measure if your moving alot of air, but there's plenty of GT35r guys running with a completely unmodified MAF.

If you find you've exceeded the capacity of the stock MAF to meter properly, you have other options too.
Old Jan 1, 2009, 08:08 AM
  #6  
Evolving Member
iTrader: (19)
 
Muad's Avatar
 
Join Date: May 2006
Location: Ohio
Posts: 336
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by 6-speed
You can either search for posts from Mellon of Mellon Tuning or give him a call; I believe he's running a large turbo (HTA35R) on the stock ECU and MAF.

Very nice and helpful guy from all accounts by his customers.
YEah, Mellon is running the hta86 with the stock ECU and MAS. Making over 600awhp on pump with it.

He glued his honeycomb too. SO I think you are fine.
Old Jan 1, 2009, 08:18 AM
  #7  
Newbie
Thread Starter
 
jamie_v1's Avatar
 
Join Date: Apr 2008
Location: u.k
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
Thanks guys i will contact mellon thanks for the help
Old Jan 1, 2009, 08:42 AM
  #8  
Evolved Member
iTrader: (1)
 
whitey4d's Avatar
 
Join Date: Sep 2005
Location: Harpers Ferry,WV
Posts: 751
Likes: 0
Received 0 Likes on 0 Posts
<-untouched stock MAF with no epoxy all year.

People used to hack up 2g MAFs back in the DSM days but they had 4 honeycombs in them. People would remove all but teh center one.

The EVO only has one screen. the one infront of the wire. You will probably have alot fo uncontrollable driviabilty and stalling issues with out extremely changing all the settings in your tune.
Old Jan 1, 2009, 08:58 AM
  #9  
Account Disabled
iTrader: (465)
 
TTP Engineering's Avatar
 
Join Date: May 2005
Location: Central FL
Posts: 8,824
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by whitey4d
<-untouched stock MAF with no epoxy all year.

People used to hack up 2g MAFs back in the DSM days but they had 4 honeycombs in them. People would remove all but teh center one.

The EVO only has one screen. the one infront of the wire. You will probably have alot fo uncontrollable driviabilty and stalling issues with out extremely changing all the settings in your tune.
Its not a wire, its a Karman vortex meter.

The Evo X has a hotwire maf.

We did this last night on a 35R HTA with stock MAF. This is an actual dyno and not a Datalog Lab estimated hp figure as has been quoted further up in the thread.

I would like to see Mellon get on a dyno sometime. He is welcome to drive down south here and dyno for free if he would like.

Old Jan 1, 2009, 09:16 AM
  #10  
Evolved Member
iTrader: (1)
 
whitey4d's Avatar
 
Join Date: Sep 2005
Location: Harpers Ferry,WV
Posts: 751
Likes: 0
Received 0 Likes on 0 Posts
I understand that the differnce between a Hotwire that uses temperature change across the wire to detemine flow rate compared to a Karmen Vortex meter that uses a frequency output of the said wire to determine flow rate,

We can talk about Vane style meters if you want to but this thread is about the factory 8/9 meter that does not need to have the honeycombs removed to make big power that is not he same on every dyno.

Thanks for the input about the Xs being hotwire. That I wasnt aware of as I havent even seen one in person yet letalone work on one.
Old Jan 1, 2009, 10:31 AM
  #11  
Evolved Member
iTrader: (82)
 
MasterNater's Avatar
 
Join Date: Aug 2006
Location: Tupelo, MS
Posts: 865
Received 22 Likes on 20 Posts
Mellon is running the hta86 w/ stock maf, and he finally DID remove the honeycomb after having it glued in for a while. It's just one of those things where a bunch of people on EvoM say don't do it, and then someone like Mellon tries it, and it works. He was able to tune his car just fine without the honeycomb.

Last edited by MasterNater; Jan 1, 2009 at 12:05 PM.
Old Jan 1, 2009, 11:10 AM
  #12  
EvoM Guru
iTrader: (5)
 
MalibuJack's Avatar
 
Join Date: Feb 2003
Location: Royse City, TX
Posts: 10,569
Likes: 0
Received 9 Likes on 9 Posts
I don't think so.. There's no need to remove the MAF honeycomb, All it does is direct airflow properly passed the Karmann sensor. Without the honeycomb, you will have a large amount of turbulence at different airflow rates resulting in inconsistent and unpredictable output of the MAF, therefore making it Difficult to impossible to tune consistently.

You should periodically check your honeycomb for damage, as dings and bends WILL generate turbulence and in some cases "lift" causing the honeycomb to become further damaged. its not uncommon to see many of the outer edges of a MAF sensor with damage, those are the ones that seem to become "compressed" and then dislodged. The Epoxy will help keep that from happening, but its not necessary.

Remember, we're not talking about sheer air volume here, as removing the honeycomb will result in more air being able to travel through, but what good is it if you cannot measure it properly? But hey, if you want to remove your honeycomb after getting cautioned against it, fine, just remember to put a new MAF on the car when you finally decide to sell the car because you made it run like crap.
Old Jan 1, 2009, 11:20 AM
  #13  
Evolving Member
iTrader: (12)
 
Poloiceberg's Avatar
 
Join Date: Dec 2007
Location: Ny
Posts: 282
Likes: 0
Received 0 Likes on 0 Posts
I read somewhere that Mellon removed the honeycomb from his maf, if i remember correctly
Old Jan 1, 2009, 12:40 PM
  #14  
Account Disabled
iTrader: (102)
 
1NastyMR's Avatar
 
Join Date: Jul 2007
Location: Chicago, IL
Posts: 1,086
Likes: 0
Received 0 Likes on 0 Posts
If you want to remove the maf as a whole just go AfterMarket ECU such as Autronic or AEM
Old Jan 1, 2009, 12:47 PM
  #15  
Account Disabled
iTrader: (465)
 
TTP Engineering's Avatar
 
Join Date: May 2005
Location: Central FL
Posts: 8,824
Likes: 0
Received 2 Likes on 2 Posts
http://videos.streetfire.net/video/T...n-e_208938.htm


Quick Reply: Running 35r on stock maf



All times are GMT -7. The time now is 08:08 AM.