Ok, I am having problems with running the vacuum lines for the boost system. I have the compressor fitting off the turbo running to the side port of the 38mm Tial Wastegate. The top port of the wastegate is going to the out port of the Blitz electronic boost controller. The in port of the electronic boost controller is connected to the vacuum line off the FPR.

With this setup, at idle, the wastegate is constantly letting out exhaust and it is very loud. Something is not right and I cannot pin-point it out. Any ideas anyone? Thanks all.

Also, my HKS SSQ BOV is not releasing air at all, even with the adjuster screw all the way out. I am totally lost at this point.

 

I dont quite understand your setup right now, do you have any pics. Is the tial connected to a vac source such as the FPR vac hose? Is you BOV connected to a vac source?

 

The wastegate is connected directly to the turbo. There is a vacuum fitting right off of the compressor. The BOV is connected to a vacuum source off the FPR.

 

Do you have a boost gauge? Try hooking the wg to a diff vac source.

 

Also, anyone know the Hg I should be at idle?

 

With the Tial wastegate, there is a little ring that you need to install before you install the WG. If you don't install that little adapter ring it WILL blow at idle.

For BOV, it would help if you could show how you set it up. The BOV has a vacuum line fitting that goes tees into the boost/vacuum pipe.

As far as the boost controller goes, I would need to see the instructions for it before I can comment on anything there. Try the setup without boost controller first.

Good Luck ... and as always call me if you need help!

 

Also, be sure you have the hoses attached to the correct ports on the wg

 

I was looking over the directions for my EVC III and they say... do not use the FPR hose as a vaccum source, unless specifically instructed to... I don't know if they say that because the BC might get mixed readings or if they are afraid it might affect the FPR somehow. I'd find another vaccum/boost source other than that. does the Blitz have a 3rd hose(should go somewhere on the charge pipe before the IC and after the compressor)??

 

No, the Blitz does not. It says to tap a vacuum source somewhere in between the compressor and the throttle plate, so I am gonna try that instead of the FPR vacuum hose.

Nigel: I did install that ring, I almost forgot about it too lol. I am gonna uninstall the main engine components for the Boost controller and run it manually for now. When I do this, how exactly do I run the wastegate hoses and all? Thanks guys.

 

 

yeah thats what I meant, same as HKS. I'm guessing maybe they suggest it to be before the IC though in order to get a more defineite boost reading(ie- no pressure drop), good luck.

 

Erik- my setup was....


Wastegate connected to compressor side of turbo .....

BOV, Boost Gauge, FMU connected to that is connected to the back of the inatke manifold...



This setup worked fine




Now it is Wastegate, BOV, FMU, boost gauge all connect to theline on the back of the manifold.

If you need pics.. I am at work but I can post them tomorrow LATE as always

 

Thanks guys for the help. Well, I think I know the exact problem(s).

I know that I have a vacuum leak because my fuel pressure gauge is constantly bouncing between 30-40 psi at idle.

And I know that my wastegate is constantly letting off exhaust at idle because my boost controller was set for the wrong type of wastegate. It was set for an internal wastegate design, not and external. Duh........

And lastly, which won't matter until I get the others fixed, my FMU fuel lines were reversed.......

 

BTW you should see 20-22 HG at idle in PARK.. THIS is from what I have read for an AUTO

Guessing 18-20 HG in Neautral for you 5 spd guy

 

that little AC/WG switch is a sneaky one, eh?

try not to run everything off the FPR vacuum, as it's a pretty small line. I ran most of my vacuum lines straight from the intake manifold.

 

As promised pics a day late as usual.. sorry

 

 

 

Hmm! Interesting! I didn't do it that way, but it works too. I would take pics of mine too but my tranny is still out and nothing is hooked up cos i had to remove the turbo stuff.