davepnola

No just pics in the living room... Anyway the holes are definetly not dilled, They are where the diaphragm is creased to flex back and forth. I do not think these wastegates are aluminum, seems to be heavy. I would say cast steel on the bottom, stainless mix on the top.

Ok still where can I buy a diaphragm that will work ?? (and not for 100.00$) I do not think it has to be exactly the same , but pretty close. Plus since it will be true dual gate having opposing presure to control the valve, I would think the flex of the diaphragm would not have to be as much ?? Thanks

Olli Snellman

In europe original WG's has been rebuild for years. At least in UK & Sweden are companies who has done this.

davepnola

Please find me where I can purchase the diaphragm. Thanks

reno808

dude save your self the hassle and buy a tial you never again have to worry about it and you can hold more boost.

davepnola

Still looking for a wastegate diaphragm ,, anyone ???????

lee101315

I need one too, the tial is a bit on the expensive side

tommo951

Thats not what Patrick said
"My tial jammed shut and I saw over 30psi at the track with a helmet on and couldn't hear the engine trying to explode. Lucky to drive home that day. Have a LDPWG since, no probs."

Tials are good, but there are equally good wastegates out there. Remember Tials have a Diaphragm too that will eventually wear out.
Somebody posted a non diaphragm wastegate on here a while back. Looked like the way forward

blown 944

Well, I went ahead and did this to mine.

I wasn't going to do it b/c with the turbo I am using (T4 .58 ar P trim hotside BIG)I figured the backpressure in the crossover would be minimal. It is to an extent but, after doing this mod I had to completly readjust my MBC.

W/O the dual port it was runnignup to 22 psi and holding a rock solid 20 to redline with the MBC set to bleed a little .

Now with the dual port setup... it right away ran ...well not sure b/c the guage couldn't readthat far... but It was pointing completely down. If the same increment values were used it would most likely be about 27 psi.

I only did that for one quick burst then adjusted the MBC. Now it holds a rock steady... whatever .. I put it to. Currently set at 22 psi (actually it goes up to about 24 momentarily then down to 22).

I would say this is a A+ mod

the only thing I will add to what has been mentioned, is that I used a 3/16" tall piece of copper tube to seal between the diaphram housing and the valve housing. I did the same type setup by drilling and tapping a 1/8" nipple into the bottom side of the diaphram housing. I usedself tapping screws to seal the 4 holes. Then tested the seal with and air blow gun.

I was looking for a Tial but this works very well

Thanks for the idea I think I just saved a bit of $$