tial 38mm

[yellow90tsi]

Does anyone know if u have a 38mm tial wastegate, do i have to hook any vacuum lines up to it if just running the spring that came with it(14.7)? And if i do where should i run that line from, the compressor housing? Thanks guys.

 

[andymoraitis]

To use spring pressure to open the gate, you'd hook a vacuum line from your compressor housing or boost source to the side port on the Tial. If you have a top port on the wastegate, that's reserved for use with an EBC.

 

[delta448]

If you don't hook a vac line to it for it to recieve a boost signal from, you'll have infinite boost, not your spring pressure. A wastegate spring is rated at how much boost it takes to overtake the spring and open the wastegate. If you don't alter the signal going to the WG from the vac line in any way, your max boost will be the spring's rating. That's how boost controllers work. They allow more boost than the spring by not allowing the pressure signal to reach the WG until after the boost pressure is at a higher level.

 

[yellow90tsi]

THanks guys, thats what i thought but wasnt 100% sure. I havent really got on the car yet to see any amount of boost yet so thats why i was asking. I searched but not that good. Usually everyone runs a mbc or an ebc. I plan on running an ebc here shortly. Thanks again.