18 + psi, no no no no!!!!
 

I have a new problem, looks like my 8psi internal wastegate doesn't works correctly. When i hit full boost in 3rd gear it goes to 18 + psi, like if the wastegate doesn't open.

I check the wastegate arm to verify it moves, and seems to be ok.

Need to change the wastegate or what i need to do? :3

Re: 18 + psi, no no no no!!!!
 

you sure the vac line didnt pop off?

Re: 18 + psi, no no no no!!!!
 

either that or the line is getting weak from heat causing the line to expand giving your WG a false psi reading and making it open waaaaaayyy to late. It was happening to me. I had to re-route my WG line behind the VC...

Re: 18 + psi, no no no no!!!!
 

I think that is going to be the problem.

Let me change it, and see what happens.

Thanks

Re: 18 + psi, no no no no!!!!
 

high pressure fuel line is nice to use for vac line that is under high heat and pressure ;)

Re: 18 + psi, no no no no!!!!
 

put a carb spring on it 8)

Re: 18 + psi, no no no no!!!!
 

Internal wastegate changed, same problem, vacuum line changed, same problem.

Solution: Need an external wastegate

Re: 18 + psi, no no no no!!!!
 

Fixed it for you

Re: 18 + psi, no no no no!!!!
 

:y

Re: 18 + psi, no no no no!!!!
 

Lets see your down pipe. You sure the flapper is opening all the way?

You might have a leaky diphram or bad vacuume source. make sure you dont have a check valve or something from where your getting it from.

Re: 18 + psi, no no no no!!!!
 

show us some pics of your setup

Re: 18 + psi, no no no no!!!!
 

You also might have the wastegate actuator to tight. If the actuator is too tight it will never open. When it is set properly; when the rod is removed from the flapper stud (on the wastegate itself) it should only pull back half of the width of that wastegate flapper stud. My roomate and I ran into the same problem with his 242 turbo volvo. Just my $.02

Re: 18 + psi, no no no no!!!!
 

get and XTERNAL GATE about TIME stop being O0

Re: 18 + psi, no no no no!!!!
 

A external gate would be nice. But, at 8psi I don't think it is necessary. People go external gates for more flow to eliminate boost creep. So many of these kits that are out there use external gates only, so most people are only exposed to are external gates (that comes with these kits) so thats all they know. my roomate is running 23 psi on his stock garrett internal gate with no problems. My grand national swap (internally gated) in my malibu runs 20 psi. I think if he was pushing more than 325+ hp than I would call it boost creep, and tell him to step up to an external gate. At this point I honestly think the actuator arm is just improperly adjusted.

**And Turbo4life, I am "O0"..... and I use mostly external gates except on my malibu and dd crx, so you can throw that comment out the window..............**

Anyways, hard2obtain hows the progress coming ??

Re: 18 + psi, no no no no!!!!
 

well im im a white negro O0 use external on 4 psi lol jk.. well i will beon my b20 for 5 t0 8 psi..

Re: 18 + psi, no no no no!!!!
 

Has there been any progress here???? I'd like to know what the problem was

Re: 18 + psi, no no no no!!!!
 

Well I had some free time yesterday so I took some pics. I just wanted to give an example for adjusting internal wastegates. In theory, the internal gate is only actuated (moved) around 1/2 inch at most on a standard garrett. If it moves any farther the flapper inside opens too far and hits the housing. If the actuator arm is adjusted too tight, the wastegate will never open fully. This in the end leads to boost creep.

The first pic is of a internally gated wastedgate housing that has a properly adjusted wastegate actuator when its pulled of of the arm. Like I said above it should only move back half of the width of the stud. The second picture is of the adjusted actuator hooked onto the wastegate stud.

Re: 18 + psi, no no no no!!!!
 

Right now i don't have a pic from the turbo and internal wastegate, but here is one of the actual setup

Attachment 17828

Re: 18 + psi, no no no no!!!!
 

If the actuator is working fine, you changed the actuator itself, and still hitting 18psi - your WG line is ----, its not hooked up to the right place, or your gauge sucks balls and is broke like most of the nogs on this website. You should have a decent line from the manifold (after the throttle body) that is *not* tee'd from some other source that goes directly to the turbo WG. If nothing else, make sure the line isn't blocked - take it off, stick it in your mouth, and blow like a good tijuana hooker would.

Re: 18 + psi, no no no no!!!!
 

Internal wastegate changed for another that fit's better, here is some pics of the Ching chong Turbo

This is the new wastegate, look the wastegate flapper, the position looks good
Attachment 17688

This is how it seems
Attachment 17689

Attachment 17690

Soon i'm going to install it again and see if the problem gone.

Re: 18 + psi, no no no no!!!!
 

Spend $5 and get a mexican hooker to give your WG nipple a blowjob - pressurize it to 10-19psi, see if it moves. If it don't, fix it. If it does, give her another $5 and drop your pants... :6

Re: 18 + psi, no no no no!!!!
 

You have a hose clamped to an AN fitting. Thats asking to blow off later down the road.

Re: 18 + psi, no no no no!!!!
 

think that could be leaking? i have never personally seen it done so im not sure on how tight of seal that would be.

Re: 18 + psi, no no no no!!!!
 

Since your running the internal, you are blocking off the external port in your manifold aren't you?

Re: 18 + psi, no no no no!!!!
 

wouldnt build any boost if it was left open :1

Re: 18 + psi, no no no no!!!!
 

u must be a knee grow O0

Re: 18 + psi, no no no no!!!!
 

Wish I had this problem, even with a boost controller im having trouble getting my snail over 4-5 psi,

5psi internal wastegate spring FTL!

Re: 18 + psi, no no no no!!!!
 

Just checking, now adays common sence isn't to common.You know how new diy'ers are.And yes im a knee grow , :P

Re: 18 + psi, no no no no!!!!
 

No boost leak owns you. :8

Re: 18 + psi, no no no no!!!!
 

hahah, i need a reason to install my new turbo.

Re: 18 + psi, no no no no!!!!
 

^^^ you already have a reason even if everything works great-- NEW TURBO! :4

Re: 18 + psi, no no no no!!!!
 

The problem was the Wastegate position.

Here i attach a pic that show the problem and the solution

Re: 18 + psi, no no no no!!!!
 

Ed Zackary.