Can the MAF sensor be eliminated

[cano86]

I've seen some pictures of car that after the turbo dont have anything else no fiter or Maf I would like to know how can it be done since all my car does when I unplug it is it turns off right away. any help

 

[boostngsx]

As far as I know. If you dont want a mas, you can run a speed density set up. Someone correct me if I am wrong. Search speed density and read up on it.

 

[Thomas98GSSNTBT]

the mafs controls your engine dont think it will run with out it?

 

[spaugh]

You have to switch to a speed density set up. About the only way is to switch a full stand alone ECU something like AEM EMS.

 

[snowborder714]

Yes, to run a car with no MAS/MAF sensor, you have to use a MAP and IAT sensor for a speed density setup. AEM EMS is one program that will allow you to run this setup.

 

[gregalmighty]

You have to have a MAF, whether its your stock one on the intake pipe or a GM 3" MAF with a "MAF translator". Basically its a larger mass airflow sensor that goes somewhere along your intercooler piping.

Here is a link with everything you could possibly know about the subject: http://www.dsmtuners.com/forums/new...-maft-questions-merged-gm-maf-translator.html

Its not really a necessary mod until you're overrunning your stock maf. You can however tune a little bit with it and vent your blow off valve without any ill effects with this setup. Money better spent elsewhere if you ask me.

This is the setup ran by guys who have no intake pipe or stock maf that you have seen.

Hope this helps and clears it up for you a little bit

 

[cano86]

Well my turbo spools real nice I since the blow off valve is not conected to the intake pipe is left to the open

 

[boostngsx]

So do a blow-through set up so you can vent without any problems.

 

[cano86]

I had a blow through set up before but I just like the sound of that open valve

 

[8urwrx]

Like the guy abouve me said, use a GM maf and the translator if you want to eliminate the stock maf and vent your Bov to atmosphere. You can still hear the "Sound" your talking about.

 

[gregalmighty]

Well my turbo spools real nice I since the blow off valve is not conected to the intake pipe is left to the open

Your turbo will spool just the same if you recirculate it. The WOOSH sound you hear when your bov is vented isn't the turbo spooling, its the spooled air being released when the throttle plate slams shut.

This topic has been argued to death. Be prepared for random misfires at wot, idle surge and other various side effects of venting without a blow through setup. You may not notice them now but you will eventually.

Just out of curiosity do you have an mbc and if so how to you have the vacuum lines run? This question seems a little off topic but I have legitimate reason for asking.

 

[cano86]

Your turbo will spool just the same if you recirculate it. The WOOSH sound you hear when your bov is vented isn't the turbo spooling, its the spooled air being released when the throttle plate slams shut.

This topic has been argued to death. Be prepared for random misfires at wot, idle surge and other various side effects of venting without a blow through setup. You may not notice them now but you will eventually.

Just out of curiosity do you have an mbc and if so how to you have the vacuum lines run? This question seems a little off topic but I have legitimate reason for asking.

The sound on this one is not a woosh type of sound is more like I dont know some sort of sneezing sound is weird its actually the sound that mustangs usually make when they are turbocharged. And the MBC yes I do have one which is set to 14PSI and it runs from the intake manifold to the BOV to the MBC and finally into the turbo in that same order.

 

[gsxtasy]

And the MBC yes I do have one which is set to 14PSI and it runs from the intake manifold to the BOV to the MBC and finally into the turbo in that same order.

Whoa whoa whoaWTF. That is NOT how your MBC should be hooked up. Don't tap it into the BOV at all, don't tap anything into the BOV line for that matter. You need a line from the intake manifold to the BOV. Then you need a line from a boost source(aka turbo nipple, or LICP nipple) to the MBC and from the MBC to the wastegate. So, boost source>MBC>wastegate.

 

[GofaST4life]

Whoa whoa whoaWTF. That is NOT how your MBC should be hooked up. Don't tap it into the BOV at all, don't tap anything into the BOV line for that matter. You need a line from the intake manifold to the BOV. Then you need a line from a boost source(aka turbo nipple, or LICP nipple) to the MBC and from the MBC to the wastegate. So, boost source>MBC>wastegate.

You def need to hook up the MBC the correct way. Listen to what gsxtasy is saying.
Also, because you dont want to hurt your car, recirculate your BOV until you set it up for blow through or speed density. Your running way lean in between shifts by venting to the atmosphere. Once again...

 

[rEclipserGST]

You def need to hook up the MBC the correct way. Listen to what gsxtasy is saying.
Also, because you dont want to hurt your car, recirculate your BOV until you set it up for blow through or speed density. Your running way lean in between shifts by venting to the atmosphere. Once again...

I 3rd this motion. You have ZERO mods listed & your doing certain things for all the WRONG reasons. I know what sound your talking about, but its not worth it in the long run. Def FIX your mbc, and recirculate. Getting an aftermarket bov & having the boost controller set up correctly will give you sexier sounds with less problems. And problems are NEVER sexy. Unless its girl problems...

&& if your having both, i feel bad for son. 99 problems but a ......

 

[JusMX141]

I had a blow through set up before but I just like the sound of that open valve

Commonly the first "ricer mod" done to our cars. I blows my mind (no pun intended) how no one connects the fact that their car somehow begins stalling to the removal of the recirculation tube.....

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Here's some food for thought: My buddy's running 22psi with a Frank 5 20G on his '95 TSi AWD. The car has a 3" Dejon intake, and a Recirculated Dodge Garage-Modded 1G BOV that was purchased unmodded from eBay for $20.

Just for kicks, we disconnected the recirc tube and capped the intake side just to see how much louder the BOV would get....it DIDN'T CHANGE. It was literally just as loud with the tube hooked up as it was disconnected.

So before you ricers head out and dump $200+ on a "louder" blowoff valve, try spending the money on USEFUL mods that allow you to TURN UP THE BOOST.

 

[gregalmighty]

For your mbc hookup follow this thread: http://www.dsmtuners.com/forums/articles-turbo-system-intercooler/237982-best-way-install-mbc.html

It has pictures and everything you can't go wrong.

Tapping your bov line for your mbc creates a small boost leak at the bov which will hinder your performance. You should have one separate vac line from the bov to the intake mani as previously stated. Also between shifts you'll be in a really rich condition (not lean as previously stated) which will further hinder performance and eventually cause problems.

An aftermarket or 1g bov is a good investment if you do plan on turning up the boost because the plastic 2g bov's leak quite a bit. However, one that can be recirculated into the intake is the way to go. Thats the way our cars are meant to run. If you DO want a blowthrough setup then go for it but make sure you know why you're getting it and how to work it properly otherwise you'll just be creating more problems for yourself.

Would you care to post a list of current mods? Theres nothing in your profile.

 

[cano86]

Hey thanks for all your help I'll definitely look it over in my car and have everything fix

 

[banishedmunk]

in my opinion you need to stop what you are doing n any case and read a $$$$ ton more than you are before you really mess somethng up. dont think you realize how tempermental these cars truley are. there are plenty of places that have plenty of info on the questons you are asking VFAQ Site - Visual Frequently Answered Questions will answer all of your questions and help you learn and understand alot more than you do hopeful in the long run saving the life of your car.

 

[cano86]

Being curious is this how I should set my MBC
http://www.dsmtuners.com/forums/att...1-mbc-installation-w-ext-wastegate-wotee.jpeg

 

[soccerplayaz16]

my car has a maft pro with speed density and i love it...i re did my intercooler piping...in the middle i needed to move the car out of the garage....with no piping connected i was able to start it up and move it with no problem at all..also i blew the charge pipe once but was still able to drive the car home with no issue

 

[snowborder714]

Being curious is this how I should set my MBC
http://www.dsmtuners.com/forums/att...1-mbc-installation-w-ext-wastegate-wotee.jpeg

No. The line going to the bottom of the MBC should be coming from the boost source (intake manifold, compressor housing, j pipe, etc.). The line going to the side of the MBC should run to the wastegate nipple.

http://www.dsmtuners.com/forums/problem-diagnosis/3175-mbc-install-merged-10-7-a.html

 

[bluetlr2001]

I had a blow through set up before but I just like the sound of that open valve

The blow-thru hes talking about isnt what your thinking. Hes is refering to taking and putting a GM mas after your bov but before your throttle body which will allow you to get rid of your stock maf. Bu you also have to have the mas translator. OR i have seen something new but havent been able to find any info on it here that will allow you to get rid of the maf altogether without going full standalone. Its called MAPECU and its a piggyback system like an afc is. I emailed them and tehy said they have used it on multiple dsms. If anybody on here has some experience with them maybe they can tell you more, or you could go check out there website.

: PERFORMANCE MOTOR RESEARCH LTD :

 

[JrCRXHF]

standalone AEM EMS, Mega squirt and so on.

Speed density ditch the maf.