Notices
DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Miata noob....would this work (MAF related)?

Thread Tools
 
Search this Thread
 
Old Mar 15, 2007 | 01:42 PM
  #1  
SloS13's Avatar
Thread Starter
I'm Miserable!
iTrader: (1)
 
Joined: Oct 2005
Posts: 853
Total Cats: 1
From: Columbia, SC
Default Miata noob....would this work (MAF related)?

Us Nissan guys commonly use a little trick; use the guts of a stock MAF and stick them into a larger OD pipe, sized with some simple geometry.

WARNING: Arbitrary numbers below:

Say where the unmolested MAF would read 2v at 100CFM the hacked MAF is now reading 1.5v @ 100CFM, which of course would lower the injector duty cycle.

In other words, stick your MAF guts into a larger housing (similar to tightening an AFM), put in appropriately sized larger injectors and voila. You then have a better "stock starting point" so say before your emange limit to running injectors would be 350cc you can now run say 480cc and idle fine, etc.

Of course a drawback would be affected ignition timing, but that could be worked out in the emanage, right?
Old Mar 15, 2007 | 01:44 PM
  #2  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 80,552
Total Cats: 4,368
From: Chantilly, VA
Default

spend $400, solder a few wires, and remove it altogether.
Old Mar 15, 2007 | 01:46 PM
  #3  
SloS13's Avatar
Thread Starter
I'm Miserable!
iTrader: (1)
 
Joined: Oct 2005
Posts: 853
Total Cats: 1
From: Columbia, SC
Default

Originally Posted by Braineack
spend $400, solder a few wires, and remove it altogether.
MS scares me but yeah getting rid of the MAFS would be pimpalicious.
Old Mar 15, 2007 | 01:53 PM
  #4  
Joe Perez's Avatar
Boost Pope
iTrader: (8)
 
Joined: Sep 2005
Posts: 34,402
Total Cats: 7,523
From: Chicago. (The less-murder part.)
Default

Originally Posted by SloS13
MS scares me but yeah getting rid of the MAFS would be pimpalicious.
EMU.
Old Mar 15, 2007 | 01:55 PM
  #5  
SloS13's Avatar
Thread Starter
I'm Miserable!
iTrader: (1)
 
Joined: Oct 2005
Posts: 853
Total Cats: 1
From: Columbia, SC
Default

Originally Posted by Joe Perez
EMU.
ooh yeah forgot about that one. I'll look into that, though I'm a notoriously cheap bastard.
Old Mar 15, 2007 | 02:23 PM
  #6  
PAT!'s Avatar
Junior Member
iTrader: (1)
 
Joined: Sep 2006
Posts: 464
Total Cats: 0
Default

I think that that would be a bit more complex with a flap style AFM compared to the SR hotwire setup. I wouldn't even know where to start to figure out how the increased length and weight of a larger flapper would affect things.
Old Mar 15, 2007 | 03:06 PM
  #7  
SloS13's Avatar
Thread Starter
I'm Miserable!
iTrader: (1)
 
Joined: Oct 2005
Posts: 853
Total Cats: 1
From: Columbia, SC
Default

I should have mentioned, mine is a MAF car. I'll put that in my sig for future reference.
Old Mar 15, 2007 | 03:09 PM
  #8  
Newbsauce's Avatar
Elite Member
iTrader: (2)
 
Joined: Jul 2006
Posts: 2,299
Total Cats: 2
From: NoVA
Default

I'll sell you my VPC and you can play with MAF annddd fuel!
Old Mar 15, 2007 | 03:24 PM
  #9  
SloS13's Avatar
Thread Starter
I'm Miserable!
iTrader: (1)
 
Joined: Oct 2005
Posts: 853
Total Cats: 1
From: Columbia, SC
Default

Originally Posted by Newbsauce
I'll sell you my VPC and you can play with MAF annddd fuel!
I havent heard many good things about tuning with a VPC. Think I'll stay away from that one.
Old Mar 15, 2007 | 03:38 PM
  #10  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 80,552
Total Cats: 4,368
From: Chantilly, VA
Default

you mean remove the maf and play with fuel
Old Mar 15, 2007 | 04:28 PM
  #11  
VRTSid's Avatar
Senior Member
 
Joined: Mar 2005
Posts: 531
Total Cats: 0
Default

Originally Posted by SloS13
I havent heard many good things about tuning with a VPC. Think I'll stay away from that one.
the vpc used to be the cats pajamas...
Old Mar 15, 2007 | 06:38 PM
  #12  
Joe Perez's Avatar
Boost Pope
iTrader: (8)
 
Joined: Sep 2005
Posts: 34,402
Total Cats: 7,523
From: Chicago. (The less-murder part.)
Default

Originally Posted by VRTSid
the vpc used to be the cats pajamas...
So did the triple-expansion steam engine.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
satisfied
MEGAsquirt
144
Nov 5, 2018 04:05 PM
elesjuan
Build Threads
7
Nov 3, 2015 01:51 PM
Voltwings
WTB
5
Sep 11, 2015 08:23 AM
main
Meet and Greet
2
Sep 5, 2015 01:03 PM
Motorsport-Electronics
ECUs and Tuning
0
Sep 5, 2015 08:02 AM




All times are GMT -4. The time now is 02:59 PM.