SLP MASS Airflow Sensor Question
Thread Starter
Teching In
Joined: Mar 2003
Posts: 18
Likes: 0
From: Andover Kansas
SLP MASS Airflow Sensor Question Gentleman,
I have a 00 vette LS1 with heads, cam headers, 430 RWHP and want to install SLP's mass airflow sensor due to the larger design of the sensor 85mm vs 75mm (97-00) and better airflow. Does the SLP come allready calibrated out of the box or do I have to have the sensor recalibrated for the 01-04 application. In addtition I have a blackwing aircleaner will I have to order the lager bellows for the larger airflow sensor? Any info wuld be apprechiated
v/r
THEYAV
I have a 00 vette LS1 with heads, cam headers, 430 RWHP and want to install SLP's mass airflow sensor due to the larger design of the sensor 85mm vs 75mm (97-00) and better airflow. Does the SLP come allready calibrated out of the box or do I have to have the sensor recalibrated for the 01-04 application. In addtition I have a blackwing aircleaner will I have to order the lager bellows for the larger airflow sensor? Any info wuld be apprechiated
v/r
THEYAV
11 Second Club
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
SEARCH!!! 
There are many, many, many posts about the SLP MAF (and messing with the MAF in general)
Long story short, DON'T do it.
Edit: Unless you are confident you can tune for it, but that isn't exactly simple so you should know what you are getting into ahead of time, otherwise leave the thing alone. Actually, my personal take is to leave it alone even if you think you can handle it.
There are many, many, many posts about the SLP MAF (and messing with the MAF in general)Long story short, DON'T do it.
Edit: Unless you are confident you can tune for it, but that isn't exactly simple so you should know what you are getting into ahead of time, otherwise leave the thing alone. Actually, my personal take is to leave it alone even if you think you can handle it.
Last edited by blkZ28spt; Aug 23, 2005 at 08:35 PM.
If you don't know how to tune for it (and trust me, you will want to know), then don't mess with it. It will only give you a headache. I personally run an 85mm truck MAF, but I have tuned around it.
Take a look in the tuning section stickies. There is a good conversation on how the MAF works, and another with great information on what it takes to re-calibrate a MAF. MAF tuning is a very involved process. Unless you have the means to tune for it, it's generally a great idea not to mess with the MAF
And even if you do have the means to tune for it, it's generally not a great idea to mess with the MAF 
Man those GM engineers wrote a LOT of "checks and balances" of sorts into the code...
Man those GM engineers wrote a LOT of "checks and balances" of sorts into the code...
TECH Veteran
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
my 99 version of the SLP has an electronic circuit that is attached to the MAF. It is supposed to fool the PCM into thinking it has a stock unit... I thought they ask you when you buy it wheather you have a program to alter MAF signals.
Trending Topics
"Electronic circuit" = resistor.
Band-aid solution. Try and have someone cough up a good calibration table for that bad boy and you'll quickly find that few understand what SLP did.
Band-aid solution. Try and have someone cough up a good calibration table for that bad boy and you'll quickly find that few understand what SLP did.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
The "electronic circuit" on SLP MAFs is a resistor.
On the plus side you also get an adaptor harness
(with three of the 5 wires) and half of a piece of
geniuine Fernco hose. Professional grade.
SLP doesn't ask for anything but your money and
a ship-to address (unless it's SS/Firehawk stuff
and then they want your VIN too).
You can "tune" the MAF by changing out the
resistor for another value. I have done this.
Lower value is leaner, higher value is richer.
But better tools have come along, as have
better deals (MAF-wise) for those who use
them.
On the plus side you also get an adaptor harness
(with three of the 5 wires) and half of a piece of
geniuine Fernco hose. Professional grade.
SLP doesn't ask for anything but your money and
a ship-to address (unless it's SS/Firehawk stuff
and then they want your VIN too).
You can "tune" the MAF by changing out the
resistor for another value. I have done this.
Lower value is leaner, higher value is richer.
But better tools have come along, as have
better deals (MAF-wise) for those who use
them.
Originally Posted by THE YAV
Thanks Guys......I will leave the MASS sensor alone. Am I losing any performace with the smaller one on?
v/r
THEYAV
v/r
THEYAV
Originally Posted by jimmyblue
The "electronic circuit" on SLP MAFs is a resistor.
On the plus side you also get an adaptor harness
(with three of the 5 wires) and half of a piece of
geniuine Fernco hose. Professional grade.
SLP doesn't ask for anything but your money and
a ship-to address (unless it's SS/Firehawk stuff
and then they want your VIN too).
You can "tune" the MAF by changing out the
resistor for another value. I have done this.
Lower value is leaner, higher value is richer.
But better tools have come along, as have
better deals (MAF-wise) for those who use
them.
On the plus side you also get an adaptor harness
(with three of the 5 wires) and half of a piece of
geniuine Fernco hose. Professional grade.
SLP doesn't ask for anything but your money and
a ship-to address (unless it's SS/Firehawk stuff
and then they want your VIN too).
You can "tune" the MAF by changing out the
resistor for another value. I have done this.
Lower value is leaner, higher value is richer.
But better tools have come along, as have
better deals (MAF-wise) for those who use
them.
What do you mean a lower value? You mean a resistor that basically doesn't resist as much? What exactly could someone replace it with to make it work properly with a headers, slp lid, and cammed car (TR224 on 114 = ) A specific size recommendation would be great! haha
I actually took the resistor out and my car didn't seem to like that. I've been trying to get that thing to work w/o tuning for it by making it NOT trick the computer.
Thanks!
Last edited by Xtnct00WS6; Aug 26, 2005 at 02:29 PM.
