external wastegate not opening help!!!!

[matt98eclipse]

i just installed my turbo kit for my 420a its a t3/t4 my wastegate is a 38mm 8 psi and i cant get it to open, the turbo just spools past 8 and i know its not good to go any higher then that so i havent even been able to give it wot yet ### help call my cell if you want its 480-430-4340 thanxs guys i really need help !!!!!

matt

 

[andymoraitis]

Just an FYI. I gave Matt a call and determined that he had a hole in the vacuum line going from the compressor boost source to the wastegate. This was allowing the boost signal to bleed off while guranteeing that the wastegate spring would never see enough airflow to open.

Some new vacuum should fix that up in a jiff.

Cheerio,

Andy

 

[95blackGsTurbo]

Did you make sure everything is hooked up properly. Vacuum line is using one and whatnot. Check it over real good and make sure it's all working and make sure the wastegate has got the right spring.

 

[95blackGsTurbo]

That was what I recommneded in the other post. Nice job. If that wouldn't have fixed I would have gone to look at it personally...nothing better to do today.

 

[VelocitàPaola]

Duplicate threads merged.

 

[andymoraitis]

Duplicate threads merged.

Grazie Signore Paolo!

 

[matt98eclipse]

Update: As u guys know, I had a vacuum leak, so I went to auto zone and got some 5/16 fuel injection hose and put it on. I just got back from a test drive and its still not opening but I did notice that when I got around 6 or 7 psi the car would hesitate and backfire a little bit. What would cause this? Would it have to due with my fuel pressure? Thats the only thing I can think of.

 

[andymoraitis]

I think you need to test for boost leaks before going any further and make sure you also don't have any leaks before the turbo in the exhaust system. Aside of those suggestions, I'd pull the plugs and read them for leanness or richness. Also you needed 3/16 fuel hose not 5/16 which is a bit large.

 

[VelocitàPaola]

Grazie Signore Paolo!

Dai, Andy... anche tu parli Italiano?

 

[matt98eclipse]

Update: k guys I went today and bought some new spark plugs and plug wires and took it for a spin. The car ran great no more misfiring but the car still is going past 8 psi when I have a 38mm with a 8 psi spring in it!! What do I do? How is the wastegate suppose to be installed just to make sure I have it right!!!???

 

[95blackGsTurbo]

Do you have picture's of how yours is installed so we can tell you if you have something backwards. How far past 8psi does it go?

 

[95blackGsTurbo]

If Mesa wasn't so far away I would be all for a roadtrip there if you can't get it figured out.

 

[matt98eclipse]

No sorry I don't have any right now. What I did was it goes the manifold, gasket, then the wastegate but I'm not sure if I installed the ring thing in there the right way.

 

[95blackGsTurbo]

Then try it another way if it isn't working.

 

[95blackGsTurbo]

http://www.tialsport.com/documents/w3_tial_wg_assem.pdf

There is a drawing from Tial website on how to assemble there 38mm wastegate.

 

[andymoraitis]

I'd also pull the cap off to make sure that the spring is seated correctly.

On a good note, at least she's not breaking up anymore under boost. I told you those platinums were crap.