TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Convert MAF to Speed Density

Thread Tools
 
Search this Thread
 
Old Nov 26, 2002 | 11:12 PM
  #1  
zerotosixtyV8's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2002
Posts: 570
Likes: 0
From: MO
Car: Camaro
Convert MAF to Speed Density

What all would it take to do this. I hear speed density has numerous benefits over mass airflow. regardless of this, speed density systems seem to have more options available and eliminate an expensive and annoying part of my car, the MAF. Speed density computers and connectors are for sale on ebay for abuot $60 for the computer and $30 for the sensors themselves. anything else needed for this? Is the conversion doable?
Reply
Old Nov 27, 2002 | 02:55 AM
  #2  
Matt87GTA's Avatar
Supreme Member
 
Joined: Mar 2001
Posts: 2,047
Likes: 0
From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
Do a search on this subject at the DIY PROM board as it is asked extremely often and all of the answers are already out there to your questions.
Reply
Old Nov 27, 2002 | 10:39 AM
  #3  
85MikeTPI's Avatar
Senior Member
25 Year Member
iTrader: (2)
 
Joined: Aug 1999
Posts: 858
Likes: 6
From: Elkton MD, USA
Car: 1985 Camaro Z28, VIN F
Engine: 427 sbc, HSR
Transmission: T-56, self rebuilt 700+ hp
Axle/Gears: Moser 12bolt, 3.42 trutrac
Originally posted by Matt87GTA
Do a search on this subject at the DIY PROM board as it is asked extremely often and all of the answers are already out there to your questions.
Or just go to the Tech Articles on this very
site... 8-)

mike
Reply
Old Nov 27, 2002 | 01:02 PM
  #4  
zerotosixtyV8's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2002
Posts: 570
Likes: 0
From: MO
Car: Camaro
Originally posted by 85MikeTPI
Or just go to the Tech Articles on this very
site... 8-)

mike
oooh sounds good, thanx
Reply
Old Nov 27, 2002 | 02:00 PM
  #5  
rockind78's Avatar
Member
 
Joined: Jun 2001
Posts: 355
Likes: 0
From: Michigan
Or you could just leave it MAF. At this point in the ball game, I don't know if the ends would justify the means. That is a fair bit of work, and I guarantee that as of right now, your MAF is NOT a restriction. If you are referring to the car in the sig.
Reply
Old Nov 27, 2002 | 02:08 PM
  #6  
85MikeTPI's Avatar
Senior Member
25 Year Member
iTrader: (2)
 
Joined: Aug 1999
Posts: 858
Likes: 6
From: Elkton MD, USA
Car: 1985 Camaro Z28, VIN F
Engine: 427 sbc, HSR
Transmission: T-56, self rebuilt 700+ hp
Axle/Gears: Moser 12bolt, 3.42 trutrac
Originally posted by rockind78
Or you could just leave it MAF. At this point in the ball game, I don't know if the ends would justify the means. That is a fair bit of work, and I guarantee that as of right now, your MAF is NOT a restriction. If you are referring to the car in the sig.
I don't believe the orig post said anything about
a restiriction? The SD system is much more programmable
and the MAP sensor is much cheaper to replace than the MAF sensor..

The MAF probably won't be a restriction until about 400 fwhp on a N/A motor.

mike
Reply
Old Nov 27, 2002 | 03:18 PM
  #7  
rockind78's Avatar
Member
 
Joined: Jun 2001
Posts: 355
Likes: 0
From: Michigan
Originally posted by 85MikeTPI
I don't believe the orig post said anything about
a restiriction? The SD system is much more programmable
and the MAP sensor is much cheaper to replace than the MAF sensor..

The MAF probably won't be a restriction until about 400 fwhp on a N/A motor.

mike
I was actually just throwing that in as a side note. I can't imagine throwing that much work into something because it is a little more programmable. By the way, aren't those Wells Units warrantied for life at $175? Did I read a sig wrong? I personally would rather have a $175 lifetime warranty MAF than convert to speed density at a higher price (by the way, if anyone has converted to speed density for less than that...good job . However, my time is worth something to me)
Reply
Old Nov 27, 2002 | 03:23 PM
  #8  
Bort62's Avatar
Supreme Member
 
Joined: Oct 2000
Posts: 2,264
Likes: 0
Having just Done essnetially this this past weekend, I can say its not very difficult.

I followed Mike's Pinout Diagram, and was repinned in a few hours, taking my time and Telling stories the entire time.

Its really one of those things that everyone with a MAF car should do, whenever they have a spare day.

its pretty straitforward.





Last edited by Bort62; Nov 27, 2002 at 03:26 PM.
Reply
Old Nov 27, 2002 | 03:24 PM
  #9  
zerotosixtyV8's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2002
Posts: 570
Likes: 0
From: MO
Car: Camaro
an MAF for less than $300??? this is new...
Reply
Old Nov 27, 2002 | 03:30 PM
  #10  
Bort62's Avatar
Supreme Member
 
Joined: Oct 2000
Posts: 2,264
Likes: 0
I was actually just throwing that in as a side note. I can't imagine throwing that much work into something because it is a little more programmable. By the way, aren't those Wells Units warrantied for life at $175? Did I read a sig wrong? I personally would rather have a $175 lifetime warranty MAF than convert to speed density at a higher price (by the way, if anyone has converted to speed density for less than that...good job . However, my time is worth something to me)
Well, If your determined to be slow, Who am I to Stop you ?

BTW My 486 here just Went Kaput on me. I can get another 486 MB and processor for a couple hundred bucks, and it will slide right in.

Why should I go through all the trouble of converting to a P4 for a Higher cost?
Reply
Old Nov 27, 2002 | 03:47 PM
  #11  
rockind78's Avatar
Member
 
Joined: Jun 2001
Posts: 355
Likes: 0
From: Michigan
I am NOT turning this into a MAF VS. Speed Density pissing match. There have been enough of those I am sure. My point was this:

*The current MAF works fine
*Not a restriction for him as of yet (This means I don't think he will be running 11's with a little PROM tuning and his mods)
*Spend the $$$ on something else
*If its not broke, why fix it?
Reply
Old Nov 27, 2002 | 03:51 PM
  #12  
rockind78's Avatar
Member
 
Joined: Jun 2001
Posts: 355
Likes: 0
From: Michigan
Originally posted by zerotosixtyV8
an MAF for less than $300??? this is new...
Nahhh....

https://www.thirdgen.org/techbb2/sho...ight=Wells+MAF
Reply
Old Nov 27, 2002 | 05:54 PM
  #13  
Matt87GTA's Avatar
Supreme Member
 
Joined: Mar 2001
Posts: 2,047
Likes: 0
From: The State of Hockey
Car: 1987 Trans Am GTA
Engine: Miniram'd 383, 24X LS1 PCM
Transmission: TH700R4, 4200 stall
Axle/Gears: 9", 4.33:1
The bottom line is that if you plan to have anything more than a stock engine, you should swap to SD for the greater tuneability, driveability, and reliability.... The performance potential of the system being much greater than the MAF system is a bonus for now and a necessity when/if you start getting serious with the mods.

And I did the entire swap for about $100 and I went with a new GM knock sensor (everything else used)......

Oh, and pretty much a ditto on the actual swap details Bort..... I seem to remember BS-in quite a bit when I did mine too ....
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
May 10, 2023 07:19 PM
Steve78LT
Tech / General Engine
4
Feb 24, 2016 12:15 AM
Thornburg
TPI
2
Aug 27, 2015 08:28 PM
Keith5
DFI and ECM
2
Aug 27, 2015 04:37 PM
86Base
TPI
14
Aug 8, 2015 01:34 PM




All times are GMT -5. The time now is 07:32 AM.