LS-1 MAF translator vs ARC-2/ VPC

[jw]

Some pictures are needed because I am still unsure what setup you guys are talking about. When did we have a 3.5" IC pipes for 3.5" MAF blow through application? If you use it as a draw through, what's wrong with a 2G MAS?

 

[Ramchargers]

Originally posted by jw
Some pictures are needed because I am still unsure what setup you guys are talking about. When did we have a 3.5" IC pipes for 3.5" MAF blow through application? If you use it as a draw through, what's wrong with a 2G MAS?

I don't know where you got the idea you need 3.5" pipes for a blow through, you do not. You also do not have to use the 3.5" sensor the 3" sensor in a 2.5" pipe would work great. The 2G sensor is resrictive and does not measure air very well. Better spool up better, throttle response, and better air measuring are just a couple benifits. Of course there is always the $ savings of not needing an AFC too.
Mike

 

[BobTurbo]

Originally posted by 1 fast POS
Mike, you said that the controls are under the hood right? Why? Why not route into the vehicle? Can I modify it to be in the dash?

Well, the easiest way to do this is to use the "Samurai Method". Meaning that you can chop the connectors off the translator wiring and splice directly to the vehicle wiring at the ECU (underdash.) This way you would not be running a bunch of wires thru the firewall.

Bob

 

[tanner261]

Running the blow through setup would require a couple 3" to 2.5" reducers, correct? Are the GN guys running 3" intercooler piping?

 

[ttawd3s]

I'll prob. go "Samari" style. My ECU has to come out for the A/F gauge, Apexi AFC, Tach, and now the translator. But I doubt I'll mount it in the dash, hehe...

 

[peregrine]

subscribing

 

[jw]

Originally posted by Ramchargers

I don't know where you got the idea you need 3.5" pipes for a blow through, you do not. You also do not have to use the 3.5" sensor the 3" sensor in a 2.5" pipe would work great. The 2G sensor is resrictive and does not measure air very well. Better spool up better, throttle response, and better air measuring are just a couple benifits. Of course there is always the $ savings of not needing an AFC too.
Mike

The other thread on 3.5" MAF and larryd was saying about 3.5" MAF and I've also read it can be used as a blow through mentioned everywhere in the posts? FYI, 2G MAS is good to 2600-2700hz before it start losing count. How many here have maxed out a 2G MAS and see it lost count? How is hotwire more accurate when it comes to measuring airflow compared to karmen vortex sensor other than being more restrictive?

If you use a 3" sensor, you will need a reducer piece on both sides and most of the DSMers has 2.25"-2.5" UIC pipes. Where should they fit the sensor? Also, there are different IC pipes routing. Short route vs stock IC pipes route? Which one are you thinking?

 

[TheObiJuan]

mike, will ported maf ends or plastic ported maf ends affect the maf negatively.

also, do you think the plastic ported maf ends would hold boost at all?

 

[nine5raptor]

Originally posted by jw

The other thread on 3.5" MAF and larryd was saying about 3.5" MAF and I've also read it can be used as a blow through mentioned everywhere in the posts? FYI, 2G MAS is good to 2600-2700hz before it start losing count. How many here have maxed out a 2G MAS and see it lost count? How is hotwire more accurate when it comes to measuring airflow compared to karmen vortex sensor other than being more restrictive?

this sensor can be used to control the actual signal for the mass air, thereby eliminating the need for an afc for larger injectors (and a vpc for a blowthru system). prelim. reports also have said that it dramatically reduces spool time.

Originally posted by jw

If you use a 3" sensor, you will need a reducer piece on both sides and most of the DSMers has 2.25"-2.5" UIC pipes. Where should they fit the sensor? Also, there are different IC pipes routing. Short route vs stock IC pipes route? Which one are you thinking?

you could still run it as a drawthru and not worry about larger piping or use it as a blowthru for more accurate reads of the actual mass of air entering the engine after compressing/cooling as opposed to getting a general idea of what is going past the sensor and possibly leaking out elsewhere.

 

[nine5raptor]

Originally posted by TheObiJuan
mike, will ported maf ends or plastic ported maf ends affect the maf negatively.

also, do you think the plastic ported maf ends would hold boost at all?

Why would you need to port it? Is 3" or 3.5" not big enough for you?

 

[TheObiJuan]

the ported maf ends make it perfectly round and the plastic helps keep heatsoak down.

but from DSMTALK mike stated that it is not worth it. only 40cfm difference.
and having the ported maf ends will make it run leaner.

 

[DrZiplok]

Mike, or anyone else from Ramchargers watching this thread; what's survivability like for the electronics in underhood applications?

Do you conformal-coat the board? Is the enclosure gasketted? (I realise the lid has to come off for adjustments, so you can't pot it properly...)

It sounds like mounting the unit inside the car won't be a major issue, so for worry-warts like me the 'samurai' technique described elsewhere will probably do just fine, but enquiring minds want to know...

One final question; I read that the 3" MAF is pretty compact. Does anyone have a picture of it with a 1G MAF or something similar for reference? If I can hide it inside the 1G aircan/filter, that'd be ideal from the survival-in-California perspective.

Many thanks for doing the work; you're on my shopping list.

 

[Bohrn]

I think this is gonna be GREAT!

One question. Can you run bigger injectors with this thing and not have to use a S-AFC to clean it up for emmissions/fuel economy etc?

I'm gonna need 550s at one point and if this does that as well, then YAY

 

[1 fast POS]

This picture may put the simplicity into perspective.

You must be logged in to view this image or video.

 

[BobTurbo]

Yes, conformal coated, switches have internal o-rings (Grayhill)

The box has a lip where the cover screws on and fits very well. The boxes are custom molded from Noryl for us.

The unit has enough adjustability so no AFC should be necessary.

There is at least one Buick guy that put the 3" MAF inside the stock air can for California Camoflage.

Bob

 

[peregrine]

alright, i read through this thread and i cant find a clear date when these will be ready. is there an e.t.a for these to ship? are they just waiting on some more field testing? if so ill volunteer to buy a prototype to test. thanks, john

 

[RedlinedTSi]

They're on the website for sale. Goto www.ramchargers.com and follow the DSM Performance link on the side.

 

[peregrine]

looks great!! where can i find the gm mafs that were pictured above? about how much are they? its about time we get some trickle down from the domestic knowledge. ive been waiting for something like this for awhile. if this turns out to be as good as i think it will be, hk$ and greedy wont have the market cornered anymore in electronics.

 

[Bohrn]

yea that is now my question as well.

What GM Mafs will work? Year and makes or part numbers. I work at a GM dealership.

 

[BobTurbo]

3" 25180303 (Impala SS and a buncha others)

3.5" 25179711 (LS1 aluminum)

Bob

 

[NOSLO2PT0]

3" 25180303 (Impala SS and a buncha others)

3.5" 25179711 (LS1 aluminum)

Are those GM part numbers?? I searched for a MAF in junkyard search engine from a Chevy Impala 1980+ and got everything from mid 90's Lumina, to Monte Carlo's, to Olds Achieva, to late model Buick Centurys.

Doing a search for a MAF for an LT1 Camaro, I get everything from the Chevy/GMC truck lineup, to all the LT1 powered cars (Camaro and Firebird)

Are these all the same unit? Are these all the same MAF that the LT1 uses? I know lots of the Mitsu vehicles use a MAS similar to the 2G one (montero and EVO use same MAS).


If this is the case, these 3" hotwire MAF's are DIRT CHEAP and can be found anywhere!!!!

Mike

 

[hdswanny]

search for 95/96 Impala SS

 

[STARION]

I ordered mine
Now I need to get the Impala SS maf and set her up for blow through. Glad I never baught an AFC.

 

[1 fast POS]

Originally posted by STARION
I ordered mine
Now I need to get the Impala SS maf and set her up for blow through. Glad I never baught an AFC.

Hey Starion, you going to keep us posted on the stuff we are all wondering about?

Like simplicity of install, total cost invested, problems that came up, tunability, performance gains, service after the sale, and anything else that comes to mind.

Thanks bro

 

[STARION]

sure will. I placed the order and called em up. They said that it would go out in 1-2 weeks, as it is new and they want to make sure its perfect before it gets sent out. Now, I just gotta hurry up and wait