how to make intake leak tester?

[WhyteSpyder]

Anyone have or know where I can get instruction on how to make a intake/boost leak tester? My car is not running fast because I have some major boost leak.

 

[98TsiAWD]

www.vfaq.com

Basically take a 2" PVC cap, drill a hole in the end of it and put a tire air valve in the hole, then clamp the PVC cap to your turbo inlet using a 3" long piece of rubber coupling and 2 hose clamps. Then just use a compressor to pressurize it. Have a buddy watch the boost gauge so you dont push more than 20psi into it tho...
You will hear a boost leak, it will be a whistle sound, if you have no leaks you wont hear antying.

 

[greyforestgst]

Originally posted by 98TsiAWD
www.vfaq.com

Basically take a 2" PVC cap, drill a hole in the end of it and put a tire air valve in the hole, then clamp the PVC cap to your turbo inlet using a 3" long piece of rubber coupling and 2 hose clamps. Then just use a compressor to pressurize it. Have a buddy watch the boost gauge so you dont push more than 20psi into it tho...
You will hear a boost leak, it will be a whistle sound, if you have no leaks you wont hear antying.

yep, but i'd personally put 25lbs, just to be sure your system is leak-free

 

[WhyteSpyder]

I did the test and the only leak I hear is from my turboxs high performance boost control. The leak is comming from the two little holes where the lower 0-ring is. There are two of them and it's from the lower one. Is this normal or not?

 

[greyforestgst]

Originally posted by WhyteSpyder
I did the test and the only leak I hear is from my turboxs high performance boost control. The leak is comming from the two little holes where the lower 0-ring is. There are two of them and it's from the lower one. Is this normal or not?

normal, it is supposed to leak out of the end side, or else when it pushes the ball enough to pressurize the line running to the wastegate and suddenly you let off the throttle, the ball would return back and the spring would uncompress but the wastegate would still be open because the pressurized air can't escape.

summary: plug off the vac line to your mbc while boost leak checking

 

[hellcat77]

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

 

[ChicagoGSX]

Hellcat, how do you have a 99 Talon, they stopped production in 98.

 

[kpt4321]

The important thing to watch is how slowly your boost drops after you get it to a certain psi level.

...Kyle T.

 

[WhyteSpyder]

Thanks guys, I found my leaks now....after I plug the vac ling to the mbc.