Tuning, Diagnostics, Electronics, and Wiring HP Tuners | EFILive | Hand Held Programmers | Stand Alone PCM's | Electronics | Wiring Diagrams

maf or speed density?

Thread Tools
 
Search this Thread
 
Old Oct 13, 2008 | 08:23 PM
  #1  
jow02327's Avatar
Thread Starter
TECH Enthusiast
iTrader: (21)
 
Joined: Sep 2004
Posts: 706
Likes: 0
From: Lubbock, Texas
Default maf or speed density?

I would like to know everyones opinion on which would work best with my setup. The setup is as follows:

d1sc procharger with 3.1in pulley(if it makes to much boost a 3.4 will go on there)

370ci

prc stage 3 ls6 heads

port matched victor jr. intake with ls2 90mm tb

sorry im not sure how much boost it will make but maybe some of the other procharger guys can chime in and give me some idea.

The truck is my daily driver also but gas mileage doesnt really matter
Reply
Old Oct 13, 2008 | 08:37 PM
  #2  
dewmanshu's Avatar
Moderately Differentiated
20 Year Member
Liked
iTrader: (4)
 
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
Default

This is your sig "Project X"? I moved your thread to here, in the tuning section.

If you aren't blowing the thresholds of the MAF (and it appears you plan to pulley up if you get to much boost), I'd stay with the MAF. No reason to complicate things.
Reply
Old Oct 13, 2008 | 08:52 PM
  #3  
jow02327's Avatar
Thread Starter
TECH Enthusiast
iTrader: (21)
 
Joined: Sep 2004
Posts: 706
Likes: 0
From: Lubbock, Texas
Default

i should have put that i would be upgrading to a lingenfelter 100mm maf, and the reason i said i would pulley up is if i made too much power for my fuel system to keep up(i'll be running a 255 pump with a magnavolt) until i can afford to upgrade.

I knew i was going to leave something out

Last edited by jow02327; Oct 13, 2008 at 09:26 PM.
Reply
Old Oct 14, 2008 | 08:55 AM
  #4  
Wilde Racing's Avatar
How do I change this text
iTrader: (26)
 
Joined: Jan 2005
Posts: 7,294
Likes: 2
From: Behind the TIG welder
Default

How much boost do you plan on running?

The maf will give a smoother engine "feel" and a slightlly quicker throttle response.. But if it were mine I through the stupid thing away...
Reply
Old Oct 14, 2008 | 09:37 AM
  #5  
dewmanshu's Avatar
Moderately Differentiated
20 Year Member
Liked
iTrader: (4)
 
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
Default

The lingenfelter is only as good as the pcm's limits. (512g/sec I do believe on the '06) I just think alot of people pull the trigger on 2bar before they really need to. I get the love/hate for the MAF, but if you are within it's limits, fug it. UNLESS you are tuning yourself and love to do it. The go 2bar, it's fun.
Reply
Old Oct 14, 2008 | 10:57 AM
  #6  
dirt track racer 81's Avatar
TECH Senior Member
iTrader: (45)
 
Joined: Jun 2005
Posts: 9,439
Likes: 13
From: Hennessey, Oklahoma
Default

2 bar speed density is the only way id go
Reply
Old Oct 14, 2008 | 06:17 PM
  #7  
jow02327's Avatar
Thread Starter
TECH Enthusiast
iTrader: (21)
 
Joined: Sep 2004
Posts: 706
Likes: 0
From: Lubbock, Texas
Default

well i talked to my tuner and he said go with speed density also. where and how does the sensor go because with a maf i would have just put a silicone coupler on each side. I'm sorry for the dumb question, but i've never seen pics of the piping or air intake of a vehicle thats been sd tuned. In case you were wondering i'm not going to try and undertake this myself. Nelson will be sd tuning it when it is finished, i just didnt get to talk to him directly when i called because he was with a customer.

Thanks,
J
Reply
Old Oct 14, 2008 | 07:43 PM
  #8  
dewmanshu's Avatar
Moderately Differentiated
20 Year Member
Liked
iTrader: (4)
 
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
Default

What is your target boost level? 5.3L?

You replace your current MAP sensor with a new 2 bar MAP sensor. The MAF will become and ornament besides the critical IAT sensor that is housed in there.
Reply
Old Oct 14, 2008 | 09:17 PM
  #9  
nonnieselman's Avatar
TECH Senior Member
iTrader: (10)
 
Joined: Oct 2004
Posts: 14,068
Likes: 2
From: Crystal Springs, MS
Default

I like the 2 bar Speed Density cause i know how to do it... lol
It was easier for me to grasp than tuning with the MAF.. And im glad i got rid of the MAF cause some people at the track never can figure out where it is...
Reply
Old Oct 14, 2008 | 09:33 PM
  #10  
dewmanshu's Avatar
Moderately Differentiated
20 Year Member
Liked
iTrader: (4)
 
Joined: Nov 2004
Posts: 27,563
Likes: 3
From: Maryland
Default

jeeesh guys LMAO it's not that hard to tune a MAF if you aren't blowing passed it's limits LMAO. After 4K rpm it's all MAF how hard can it be? OH yeah, forgot, tuning part throttle. FABOpartthrottletuning, fine..go 2bar.
Reply



All times are GMT -5. The time now is 05:47 PM.