refresh951

I believe you can run Dual Port, hook up as shown below (Tial 38):

Note: I have the WG supply line coming from the output of the IC but it can be in the stock location at the input to the IC.



Also, here is Tial's diagram:

black944 turbo

So Shawn, my manual controller (reliaboost) should work in Dual port? I attempted to hook it up as shown and it was uncontrollable boost. I also have 46 mm if that makes a difference.

refresh951

Yep, should work.

Does the reliaboost look like the LR MBC? Basic flow regulator?

http://www.lindseyracing.com/LR/Parts/951BOOST1.html

black944 turbo

No, mine is a ball and spring type.

Is there any advantage to running dual vs. single?

refresh951

Yes, I think you need to run single port with a ball and spring.

Peedster

Tom: Im pretty sure the system wasn't working correctly before either. Last summer I only drove it for a few miles and I didn't have a boost gauge then but if remember correctly it boosted quite crazy then too. It's not until now that I understand this though.

But since installing the MBC I've had the lines hooked up exactly like Rogues diagram and got confused when I saw LRs diagram so I changed it to their setup with lines goin opposite.
Will change it to single mode and see what happens now.

Any comments on stuck wastegate? Could this be it?

Refresh951: How many turns does it take your MBC to go from closed to fully open? Mine takes about 3 complete turns and then I can continue turning for a couple of turns without function.
Also my MBC ( looks identical to the LR) closes when turning to "minus" and open when turning "plus". Is this correct?

Thanks

Tom M'Guinn

If the lines were backwards, the wastegate could stay open and seem like it's stuck. Try correcting that first.

Zeff

The lindsey diagrams are for their dual port wg. The Tial needs to be run opposite.

Peedster

Hi guys,

I took off the WG and put compressed air through the side port and the valve opens fully at 0,9 bar and closes fast when the air is shut off.

Also tried to have the MBC setup in single port mode but still overboosts.

I have one last thing to test....switching the WG upside down...
My is pointing upwards to the passenger side of bellhousing.
This means that crossover comes to the side and discharge is in the bottom.

Is this really correct? Anyone have pictures of the correct position?

I also saw that the three pipes that's connected with a metallic 3-leg connector between ISV and MAF were really loose with their original clamps. Maybe it's good to replace those clamps with screw type ones.

/Peter

Tom M'Guinn

Wastegate sounds backwards -- see the Tial illustration in this thread. Here's a picture of my Tial 46mm pipes for reference.

Peedster

Yes I have it installed the opposite to you.

The funny thing is that when I mounted it the first time I had like that but someone said it was wrong....

I guess that the exhaust gasses work against the spring in my install causing it to overboost?

Hoping to change any day.

Thanks

black944 turbo

You do have a tial, correct? If it is a lindsey dp it will go opposite.

Peedster

Yes I've got a Tial 38.

So I should install as Tom with crossover connected in the bottom port?

Hoping this will solve boost issue!

toddk911

I have seen and read in here more times than not of problems trying to run in Dp mode.

Also, I have yet to hear any feedback of anyone noticing any difference in Dp over single port. Maybe with EBC but never with MBC.

Peedster

So I installed the Tial the correct way with crossover pipe going to the bottom port and the dump pipe to side port.

This was so tight that the WG scratches the torque-tube and I had to take away the top port banjo and run it in single mode from the side.

So now the boost line goes from banjo on ic-pipes to the MBC and then to the side port on WG.

But it still overboosts.....??

Cant the exhaust pressure push the WG valve open? The spring is only 0,9 bar. I was not able however twitch my fingers push down the valve.

What is still not correct? :-(