Fordmods Logo

maf mod. any tried this 

 

Page 1 of 1 [ 12 posts ] 

 
 Post subject: maf mod. any tried this
Posted: Mon Feb 19, 2007 7:42 am 
Getting Side Ways
Offline
User avatar

Age: 53

Posts: 527

Joined: 14th Mar 2005

Gallery: 14 images

Ride: ebxr8

Location: adelaide
SA, Australia

these modded mafs r on ebay,mod looks simple enough,has anyone tried to do this :?:
I suppose they still work with computer upgrade.

 

 

Attachments:
AUPORTEDMAF3SMALLMKIII.jpg
AUPORTEDMAF3SMALLMKIII.jpg [ 37.12 KiB | Viewed 31 times ]
AUPORTEDMAF1SMALLMKIII.jpg
AUPORTEDMAF1SMALLMKIII.jpg [ 39.41 KiB | Viewed 43 times ]

 

_________________

Image

Top
 Profile  
 
 
Posted: Mon Feb 19, 2007 3:11 pm 
EFI Guru
Offline

Age: 52

Posts: 4289

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

You need to formulate a new MAF transfer function and program that into the EEC. Done a couple of these with TwEECer BTW.
I did an 80mm Cobra MAF like this many years ago for a guy but he never brought the car around for me to recal then subsequently blamed me for the poor running of his car. Dumb C***!

Pete.
Top
 Profile  
 
 
Posted: Mon Feb 19, 2007 6:18 pm 
Getting Side Ways
Offline
User avatar

Age: 53

Posts: 527

Joined: 14th Mar 2005

Gallery: 14 images

Ride: ebxr8

Location: adelaide
SA, Australia

why r they made so restrictive?

 

_________________

Image

Top
 Profile  
 
 
Posted: Mon Feb 19, 2007 10:21 pm 
Tyre Shredder
Offline
User avatar

Age: 40

Posts: 378

Joined: 3rd Dec 2004

Ride: EB V8

Location: Blue Mountains
NSW, Australia

ixlrate wrote:
why r they made so restrictive?

Restrictive? They are not even close to restrictive on a stock motor. Think about it, they were not designed for your deep breathing stroker.

As for real restrictions, the stock exhaust manifold is the first restriction on a stock motor. From there, decide what capacity & work backwards with heads, manifold, perhaps a cam (while motor is open), TB/EGR (best size will depend on heads/intake/cam/crank), then finally worry about the MAF (& injectors).

 

_________________

Production Editor of Performance Motoring at Express Media Group
shollier@expresspublications.com.au
Phone: (02) 9741 3838 (direct line)

Top
 Profile  
 
 
Posted: Tue Feb 20, 2007 10:39 am 
EFI Guru
Offline

Age: 52

Posts: 4289

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

What Sam said.
As an example; my mates' 5.0 Capri makes 305rwhp and is 0.02V off maxing out his 70mm Cobra MAF.

Pete.
Top
 Profile  
 
 
Posted: Tue Feb 20, 2007 6:21 pm 
Getting Side Ways
Offline
User avatar

Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

XR9UTE wrote:
You need to formulate a new MAF transfer function and program that into the EEC. Done a couple of these with TwEECer BTW.
I did an 80mm Cobra MAF like this many years ago for a guy but he never brought the car around for me to recal then subsequently blamed me for the poor running of his car. Dumb C***!

Pete.


You gotta love Morons like them, only want half a job, and wonder why it doesn't perform.

 

_________________

http://youtu.be/jJTh9F3Vgg0

Top
 Profile  
 
 
Posted: Wed Feb 21, 2007 6:00 am 
Tyre Shredder
Offline

Posts: 311

Joined: 3rd Jan 2006

Location: tauranga
New Zealand

i was gonna do this to mine when havin a flash tuner fitted on the dyno , because it must be a restriction MAF 70mm=TB65mm when you subtract the decrease in area from the bar the area of the MAF is smaller than the TB???
Top
 Profile  
 
 
Posted: Wed Feb 21, 2007 7:44 am 
Getting Side Ways
Offline
User avatar

Age: 53

Posts: 527

Joined: 14th Mar 2005

Gallery: 14 images

Ride: ebxr8

Location: adelaide
SA, Australia

i've got the same prob tb65mm maf70mm but very restrictive,my cars at the dyno at the minute i'll do the mod later when i get a decent exhaust then get some minor adjustments on the dyno and see wat difference it makes.
my tuner said take the maf home do the mod bring it back but i'm worried i may fcuk it up and then we're stuck.

 

_________________

Image

Top
 Profile  
 
 
Posted: Wed Feb 21, 2007 9:51 am 
Tyre Shredder
Offline

Posts: 311

Joined: 3rd Jan 2006

Location: tauranga
New Zealand

i was gonna do mine as a budget MAF replacement it cant hurt as long as what Pete said you have to be able to tune it to the extra airflow ...it would be easy enough to do yourself,cuttin the bridge out??
Top
 Profile  
 
 
Posted: Wed Feb 21, 2007 10:21 am 
EFI Guru
Offline

Age: 52

Posts: 4289

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

fairy v8 wrote:
i was gonna do this to mine when havin a flash tuner fitted on the dyno , because it must be a restriction MAF 70mm=TB65mm when you subtract the decrease in area from the bar the area of the MAF is smaller than the TB???


You forgot about the throttle blade and shaft in the t-body. The 70mm MAF still flows more.
Another example is a 55mm MAF(which has a periferal back flow inhibitor) flows more than the 60mm stock t-body.

Pete.
Top
 Profile  
 
 
Posted: Wed Feb 21, 2007 11:19 am 
Getting Side Ways
Offline
User avatar

Age: 53

Posts: 527

Joined: 14th Mar 2005

Gallery: 14 images

Ride: ebxr8

Location: adelaide
SA, Australia

comparing the au 70mm maf to my eb 55mm maf,i recon they would possibly flow the same any thoughts on this?

 

_________________

Image

Top
 Profile  
 
 
Posted: Wed Feb 21, 2007 12:27 pm 
EFI Guru
Offline

Age: 52

Posts: 4289

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Nope 70mm flows more.

Pete.
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 12 posts ] 

Who is online

Users browsing this forum: No registered users and 7 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Dec 15, 2017 4:40 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names