GM MAF sensor question

[sweet97]

What is an SLP MAF?
We change to the GM MAF due to it's increased flow over the DSM mas. Set up in a blow thru position it allows the BOV to vent to the atmosphere, some like that. The translator that is being marketed is designed to work with the GM MAF allowing us to tune fuel through tricking the ECU as to the amount of air flowing through the MAS/MAF. Mark

 

[boostedinaz]

Many of us Camaro owners ditch the crappy GM MAF as soon as the modding begins...
I replaced my stock GM piece with a SLP MAF. Noticeable difference in both quality and function IMO...

Why would anyone mess up a perfectly fine DSM with a GM part? I just don't understand...

I admire your spunk Dred, but take advice from a GM owner: The GM maf is not woth all the time that you will invest in this project... Just my humble opinion...
Good luck with your ride!

The GM MAf is just fine. I have numerous friends that have made more power than most people on this board with a stock GM MAF. They range from 850 to the wheels all the way down to stock and none of them had any problems, all F bodies and Vettes.

Now if you want to do just like this guy is doing and try to make you own correction tables then by all means pick up and after market MAF. They are usually about 250 and up and already have a bit of a "tune " to them so you need to adjust the the way the translator reads them.

It is also common knowledge that the GM MAF is leaps and bounds better than and DSM MAF.

 

[boostedinaz]

What is an SLP MAF?

SLP is an after market company for alot of GM products. They are the ones who take a regualr Z28 and convert it to an SS for GM.

 

[danielbui]

Off the topic.Alot of the aftermarket GM MAF WILL NOT work with the translator for Turbo DSM's ie. Summit Racing, JEGS, ect..... that is why the the stock 3.5" or 3" is used. on the topic how about starting with a potentiometer and the stock dsm mas air for tuning. then start figuring out how to translate one signal to another. buy a 3" GM MAF to start with since it will be your first try and its the most popular. remember the translator has selectable dip swich for different sizes which usually means the different sizes have slightly different signal patterns..

 

[sweet97]

Thanks for the info. I have been using the MAFT for a year and have had bo problems withit and infact I enjoy it a great deal. Thought the guy had something constructive to offer with the SLP MAF. Mark

 

[Nt-Eclipse-Dail]

What is an SLP MAF?
We change to the GM MAF due to it's increased flow over the DSM mas. Set up in a blow thru position it allows the BOV to vent to the atmosphere, some like that. The translator that is being marketed is designed to work with the GM MAF allowing us to tune fuel through tricking the ECU as to the amount of air flowing through the MAS/MAF. Mark

The SLP MAF is slightly larger (inside dia.) and is much 'smoother' inside compared to the stock GM MAF. Some guys who keep their stock GM MAF sometimes buy special MAF ends to help 'smooth out' the flow somewhat, This is not necessary with the SLP part, It is a nice straight shot with no restrictions other than the screen (which can easily be removed). Also the SLP part is a 'drop-in' replacement part and plugs in just like the OEM part... No tuning required.

I had no idea that the DSM setup was considered so bad and the GM part preferred in it's place... As both a GM and Mitsubishi owner, I am amazed that a GM part offers an improvement over Mitsubishi... I guess it's time to dig my old GM MAF out of the closet and post it in some classifieds? I love both of the DSM's my wife and I own and I wish that my Camaro could hold up as well... But I honestly do not see that happening.
I have always believed that Mitsubishi simply made a better product... Just My Opinion.
Hope my 'lack of knowledge' on the subject did not mess up your thread. I just thought there were nicer alternatives to the GM part, based on my personal experiences.


Quote: posted by Boostedinaz
"The GM MAf is just fine. I have numerous friends that have made more power than most people on this board with a stock GM MAF. They range from 850 to the wheels all the way down to stock and none of them had any problems, all F bodies and Vettes."

I will definitely agree with that statement. Lots of guys who like to spray prefer to spray through the stock GM MAF (I do not know why). I have had no problems at all spraying a 100 shot through my SLP MAF and I did notice a slight improvement in throttle response over the GM part. I will be staying with SLP until something better comes along.

 

[sweet97]

For the $45. a used GM MAF goes for and how well it works I believe it will be a mainstay here for some time to come. Besides the advantages the translator offers me it also allowed me to place my K&N intake in the position the stock IC was allowig my turbo to ingest cooler ambient temps. Every litle bit helps.

 

[danielbui]

For the $45. a used GM MAF goes for and how well it works I believe it will be a mainstay here for some time to come. Besides the advantages the translator offers me it also allowed me to place my K&N intake in the position the stock IC was allowig my turbo to ingest cooler ambient temps. Every litle bit helps.

to add to sweet97's comment alot of DSM'ers (and i mean alot) would rather spend $45 on a piece of tuning device then turn around port and polish the hell out of it. thats our version "smooth and straight shot". alot of guys using this type of tuning devices and simple supporting mods have easily propelled into high 12's. budget racing at its best.

 

[Hammer_Gaidin]

SLP is an after market company for alot of GM products. They are the ones who take a regualr Z28 and convert it to an SS for GM.

SLP is basically HKS for the GM world. However, the Z28 and the SS are the same mechanically...it's just the trim package.

 

[talondude4]

hey just buy the good damn translator..... it dont matter if ure copying or not man u all ready copying by using the gm one.... so get over ureself..... ok now save the money and ure hands from typing and just buy one ......... ur not a rocket scientist k man

 

[JiveMasterT]

SLP is basically HKS for the GM world. However, the Z28 and the SS are the same mechanically...it's just the trim package.

the SS has more horsepower than the Z28 on the newer camaros, it has about 15 more horsepower and 10 more lbs of torque. there's little things done to it...

the SLP MAF is about 4 inches... it is huge. We just put one on my friend's trans am a few weeks ago along with a ram air air box and a ported throttle body. its amazing how much a difference that stuff makes on those cars... oh and so im buying his 3.5" GM MAF off him cause he doesnt need it...

now i just need to figure out how to plumb it into my car.

 

[Dred]

ur not a rocket scientist k man

I bet you're still under the impression that you need to be one in order to make a translator or tune your car (or maybe even to check tire pressure). I already have the table, and I'm not sure if you guys knew this already, but the EPROM in an eprom ECU has it's own table for Hz to gm/s. I'm going to try to do 2 things, either make a standalone translator in the engine compartment, or burn 5 diff tables into my EPROM and use that (along with some other goodies that can be done w/ ECU hacking.)
]
My friend is comin over today and we'll see how far we can get in terms of making a small board diagram.

I'll keep everyone posted.

P.S. No matter how many un-original "Just buy it" replies I get, I am not going to "just" buy it. So stop trying.

 

[sweet97]

the SS has more horsepower than the Z28 on the newer camaros, it has about 15 more horsepower and 10 more lbs of torque. there's little things done to it...

the SLP MAF is about 4 inches... it is huge. We just put one on my friend's trans am a few weeks ago along with a ram air air box and a ported throttle body. its amazing how much a difference that stuff makes on those cars... oh and so im buying his 3.5" GM MAF off him cause he doesnt need it...

now i just need to figure out how to plumb it into my car.

Just get some silicone reducers from a place like www.hightempsilicone.com 3.5" to whatever IC piping you are using. Simple!

 

[boostedinaz]

However, the Z28 and the SS are the same mechanically...it's just the trim package.

It is not only a trim package. You get exhaust, and a good amount of suspension upgrades depending on how the car was optioned. They also build the Firehawk for Pontiac. If you arent sure of an answer please dont post.

 

[Nt-Eclipse-Dail]

It is not only a trim package. You get exhaust, and a good amount of suspension upgrades depending on how the car was optioned. They also build the Firehawk for Pontiac. If you arent sure of an answer please dont post.

FWIW,

My 2001 Z-28 was ordered with all available factory options (less leather, less t-tops)
This included the performance ride and handling package (Decarbon's + 32mm sway bar) and the SLP loudmoth exhaust. Other than the 'trim package' my Z-28 is identical to the SS. I have a friend with a 2001 SS and we checked 'em side by side in the driveway...

Other than the SS badging, Loudmouth Exhaust, and Suspension Package the two cars are the same. A Z can be found with the same factory upgrades (factory installed). The difference in the rated horsepower of the two cars comes from the exhaust NOT from any sort of internal engine differences.

 

[sweet97]

Summit sell the SLP MAF for $159.95 which is not an obscene price. They claim a 10HP increas over stock. Usually these ratings are inflated a bit though on a turbo car may actualy help except the normal upper IC piping is 2.5" so a custom 3" system would have to be fabricated. That alone could add 10HP. The stock TB is 60mm on a 1G? Now a Mustang or whatever the popular TB upgrade is would be required to make the MAF worthwhile though I have a friend running he 3.5" MAF now.
I guess if someone is doing a fullout maxed motor it could be worth the expense. I a NOT a candidate! mark

 

[Dred]

Ok, so after a lot of digging and googling I found something really interesting. I've been doing alot of alot of reading on eprom chipping and etc, and found out there there is a table (found that table as well) for the Hz from the MAF. For the 1geners who switch to a 2g MAF you can correct the values about 20% for the 2g MAF reports about 20% less Hz for same Airflow, so. There is also a multiplier for these values which is binary code, but simply put, it's 100. I can change the value of this multiplier, and I hope you guys know where I'm getting at now. So, this is what I'm going to try to do.

Write a binary code and burn it on my eprom along w/ all of the needed algorithms that come stock w/ the BIN from my ECU (with some tuning ). The extra binary code will be a simple formula that will change the maf multiplier to what I need it in order to get the right Hz for proper ECU calculations.

How does this sound so far?

Bet you guys thought i gave up huh? NOT

P.S. I can also perhaps find another MAF that has a somewhat linear Hz chart so that would exlude the need of a formala to keep on changing the multiplier.

 

[Hammer_Gaidin]

FWIW,

My 2001 Z-28 was ordered with all available factory options (less leather, less t-tops)
This included the performance ride and handling package (Decarbon's + 32mm sway bar) and the SLP loudmoth exhaust. Other than the 'trim package' my Z-28 is identical to the SS. I have a friend with a 2001 SS and we checked 'em side by side in the driveway...

Other than the SS badging, Loudmouth Exhaust, and Suspension Package the two cars are the same. A Z can be found with the same factory upgrades (factory installed). The difference in the rated horsepower of the two cars comes from the exhaust NOT from any sort of internal engine differences.

Yup...that's what i was trying to say. From a modification standpoint they are the same minus the trim.

 

[01rbuild]

the real question is what car, brand and model
has the bigest karman sensor.....?
im going to my local jy to see mitsu trucks....
check this