ive been looking and i cant find the thread to do the boost leak test and how to make it. can someone help please

 

I will take a pic of mine when I get home. Basically it is a 1 1/2" to 2" rubber coupler which can be found at home depot and a 1 1/2" end cap. You drill the end cap out enough to fit a press in air valve (from a car). When I say 1 1/2" to 2" coupler, I mean that one end is 1.5 and the other is 2 inches. The coupler comes with band clamps to hold everything together. Works great.

 

where can i get the press in valve stem? im guessing auto zone?

 

Search for "pressure tester" or go to vfaq.com and look for the vfaq that shows you exactly how to do it.

 

Walmart sells them in two packs for about $1.50

 

Here's a shot of mine

 

where do you connect the 2 inch side of the coupler? i would think it would have to be 3" if u were connecting it to the MAF pipe no? or where are you connecting yours?

 

You remove the maf pipe and intake. The coupler connects to the turbo inlet. I used a 2.5" coupler...

 

you can get "VALVE STEAMS" from a auto parts/Lowes... . The tester goes on the inlet of the turbo.

 

Connect it directly to your turbo, the intake pipe does not see pressure. And I used an airhose connector for mine, the male side that plugs in to an air hose. You can find them at any hardware store, look at the second item down..

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This way they are threaded (stay put well and do not leak) and you can turn down the regulator on your compressor and connect directly to it thus giving a constant supply of ait at whateve psi you want. This is good because you will find leaks, and it keeps it aired up while you isolate them. Also, you will naturally leak some air into the engine past the throttle body. I found several and I would have sworn that I did not have any. Start with a very low pressure (10-13 lbs) and work your way up to 25 lbs or whatever you think your limit will be.

 

My Master Piece....$25-$30 home Depot......Works with my compressor =0)

 

I see you already have some pics of the same unit I made.

 

Hey nhsean, what are the parts you used? I can't find the right coupler from home depot at all. They only have 1.5", 2", 3", and 4 inches only. No 2.5". Is that a 3 inch end cap or 2 inch? Thanks

 

i did that so long ago, i really dont remember, let me see if i can get some measurements on it when i get home.

Sean

 

I got everything listed here (i used a rubber coupling instead of radiator hose tho, this could be another option for you if you cant find this stuff at your local home depot) from Home Depot a few years back. I improvised on the attachments for the regulator and Compressor nozzles.

http://www.vfaq.com/mods/ICtester.html