Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

MAF vs Throttle Body

Thread Tools
 
Search this Thread
 
Old 03-15-2002, 06:59 PM
  #1  
TECH Addict
Thread Starter
iTrader: (1)
 
eallanboggs's Avatar
 
Join Date: Mar 2002
Location: New Orleans
Posts: 2,080
Likes: 0
Received 1 Like on 1 Post

Default MAF vs Throttle Body

Does it do me any good to upgrade to a 85mm MAF if my Throttle Body is only 52mm. Common sense would say the Venturi Effect would prevent all of the available air molecules to back up as they wait their turn to get thru the more narrow throttle body. "Whoa Brother, wait a minute. All you air molecules can't get thru here at the same time". The old cliche says "A chain is only as strong as its' weakest <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> link and an air intake is only as wide as its' throttle body". Did I just coin a new cliche? Cliches' ain't that easy to coin Bro.
Old 03-15-2002, 10:40 PM
  #2  
LS1Tech Premium Sponsor
iTrader: (3)
 
Trevor @ Texas Speed & Perf.'s Avatar
 
Join Date: Nov 2001
Location: Lubbock, Texas
Posts: 4,399
Likes: 0
Received 4 Likes on 4 Posts

Default Re: MAF vs Throttle Body

Your TB is not a 52mm unit; that's for the LT1 guys. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Patrick G dyno-tested a ported MAF vs. a stock MAF and lost 0 HP on the dyno by going to the stock MAF. Keep in mind this is a heads/cam car that dynos over 400 RWHP. My point is that I think a bigger MAF is a waste of time. People are seeing gains from porting the ends, but it's coming from the added timing and leaner a/f ratio, NOT from the added airflow. So, regardless whether you're running the stock TB or a fully-ported one, I'd stick with the stock MAF. Pull the screen out if you like, but keep the stock ends. It will flow plenty for ya. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
__________________
Old 03-16-2002, 08:37 AM
  #3  
TECH Senior Member
iTrader: (7)
 
Ragtop 99's Avatar
 
Join Date: Nov 2001
Location: Bethesda, MD
Posts: 9,491
Likes: 0
Received 1 Like on 1 Post

Default Re: MAF vs Throttle Body

You can port the TB and pick up a few HP even on a fairly stock LS1.
Old 03-16-2002, 09:49 AM
  #4  
Staging Lane
 
MaxHax's Avatar
 
Join Date: Mar 2002
Location: Northern CA.
Posts: 85
Likes: 0
Received 0 Likes on 0 Posts
Default Re: MAF vs Throttle Body

Most of the people around here have had the best A/F Ratio on Dyno by simply removing the screen of the stock MAF.



Quick Reply: MAF vs Throttle Body



All times are GMT -5. The time now is 07:53 AM.