Home Made MAF adapter..

[mf94_4x4]

Hi all, ive been wanting to get a KKM style intake for a while, but being a poor college student 100 dollars seemed to be a bit too much especially since i figured i could fabricate an MAF adapter myself.. so i finally got around too it.

I went over to autozone and picked up a washable cotton fiber K&N knockoff for $24, and a 3" exauhst adapter for 1.49, then down at the Shop where i work i made a cardboard templated to mount up to the MAF and then using the template, cut a peice out of some scrap metal plate, marked and drilled holes to bolt it up to the MAF, then using a 3" hole saw, i cut out a hole in the plate. Then welded up the 3" exahuast adapter to the peice i cut and drilled and then ground the edges smooth and sprayed the outside with some black krylon, looks damn good if u ask me.

Then i bolted it up to the MAF, clamped on the filter, plugged the vacum lines for the stock Air Box and that was that. Took a good 2 hours to get it all done. I noticed some increased throttle response and a pretty throaty sound when i get on it, we will see if it does anything for gas mileage but im imppresed so far.

Anyone else try this before??
Seems like a good $$ saver if youve got the tools and skills. It was easier than i thought it would be too.
Ill see if i can get some pictures up soon.

 

[aldive]

Congratulations. Post some pictures of your creation.

 

[spindlecone]

thats great, as an adapter only, most likely will work as good as any, are only talkin bore size, pipes a pipe

 

[mf94_4x4]

Should have some pictures up by tommrow evening...

 

[Josh]

I was at the junkyard the other day and was looking at a 95 with the conical style OEM filter. It Seems that if you take apart the assembly, the part the bolts to the MAF is just an adapter with what appears to be a 3" lip for the filter to mount on. I think that would work as well.

 

[DeerSlayer]

Try the Ranger station they have another homebrew creation made out of a shower drain.
http://www.therangerstation.com/tech_library/airintake.htm

 

[xmodster3o3]

Autozone sells a plastic adapter looking thing for three bucks, I used it, all I had to do was drill new holes in it. I think it's for bringing cold air into the intake and it bolts to the inner fender or something. But it works great as an adapter for our explorers.

If anyone wants a pic I can drive down there and take a pic.

 

[mf94_4x4]

Here the are....Here of some shots of the MAF adapter i made with the filter mounted up to the factory air tube in and out of the truck, looks pretty good....

http://community.webshots.com/user/mf5ohstang


Ive def noticed and increase in throttle response and sound and mabey a little get up and go....and i seem to be doing slightly better on gas so far..

 

[945speed]

What did you do with the 2 lines running to the airboxx? are they neccesarry? i was thinking pvc filter?

 

[mf94_4x4]

I just plugged them, never had an issue.

 

[945speed]

Plugged them?? but they have vacuum pressure wouldnt that hurt. I believe they are some ventilation that is just drawing in filtered air.

 

[jd4242]

Plugged them?? but they have vacuum pressure wouldnt that hurt. I believe they are some ventilation that is just drawing in filtered air.

the two little ones do nothing once you remove the box,the big one is part of the pcv and goes to the oil fill neck,if you dont use this one the best thing is to plug it,DO NOT just put a little filter on the oil fill neck and think it ok

 

[Backwoods "X"]

So, what do you propose instead of simply blocking off the air inlet for the PCV system? If you leave no way for fresh air to enter the system, then it WILL find a weak point, and force a leak then wouldn't it? Like having too much crankcase pressure will force an oil seal to fail, but only backwards, from the vacumn being generated, right?

 

[jd4242]

So, what do you propose instead of simply blocking off the air inlet for the PCV system? If you leave no way for fresh air to enter the system, then it WILL find a weak point, and force a leak then wouldn't it? Like having too much crankcase pressure will force an oil seal to fail, but only backwards, from the vacumn being generated, right?

dont think you understand how a pcv system works.a pcv system has to hoses,one on each side of the motor,they both pull vac.its purpose is to create a sealed vac system on the motor,then when any blow bye occurs it is sucked into the intake.the crank should have a negative pressure.if you remove one side and leave it open or put a small filter there the other side will suck in fresh unmetered air,moister and who knows what else,basically a vac leak.why i said if you do anything you should plug it so its still a sealed system and only sucks blow bye gases.really both should be hoked up.you do not want fresh air in the motor period

 

[jd4242]

ps pcv stands for Positive Crankcase Ventilation,IE when the pressure is no longer a negative or vacuum, it sucks the positive pressure out