New gate location.
http://www.shop.trickperformanceprod...mages/mani.jpg

I remember that one. Glad it worked out.
Might I recommend taking a small piece of metal strap. Weld from gate outlet to the down pipe.
Should give that unit more support.

i just measured a flange for a 38mm gate, its actually about 35mm ID, my 44mm gate is much larger than the port on the manifold so i would say the WG is not the restriction, or am i thinking wrong here?

I find some of your posts hard to understand.

1- What is the smallest part? Yes there is a valve inside the wastegate.
2- How is the gate a restriction when it's larger than the hole? When it's closed the wastegate is definitely a restriction. But when it's wide open, 46mm is larger than 38.

The stock hole measured 1.5" = 38.1mm
My new hole is 2" = 50.8mm.

They run 38mm wastegates on 2 liter engines. With mine being 6.6l, I decided to go big right away on the wastegate to make sure I have no problems. It will be a lot easier and cheaper to do this the first time for me than buying a smaller gate but then having to switch it out for a larger one when it doesn't work well enough for me.

I like the new wastegate location. Looks like a good spot! Looks like it has a smooth transition too.

Ok let's start over. The 1st casted manifold has an opening of 1.5.
38.1mm. 38mm gates have a smaller flange area.
More like 35mm. So the manifold is not the restriction.
Now even if the gate flange was 38mm the gate is still the restriction.
The valve still be smaller. And it's in the way.
Just like CHODA truck. 39mm gate he had some slight issues.
Installed a 39/46 adapter. Used a 46mm gate.
Problem went away.

Yea I do that alot. :)

They run the 38 on pretty much on
Everything.
Yours being a large cube engine. Then the larger gate is perfect.
Will help you run lower boost the. The 38mm would.
Agreed easier to do with it out the first time.
If you had a small engine no need for a 50mm gate.

Just because a gate is 46mm does not mean that it will flow what a 46mm opened pipe will flow. I would love to see what a 46mm gate would flow on a bench, im sure it would flow less than a 38mm opened pipe.

I see what you're saying now. Having both pipe and gate of equal size, the gate will be the restrictor between the two. That would be interesting to see.

Anyway, the stock wastegate flange and hole are on the smaller side for the displacement of my engine. Making it bigger opens up more options for me.

I recommend you throw the turbo on there. Check your oil lines
Cold piping etc. prior to cutting and fitting the gate.
A slight tilt might make your install cleaner and easier on you.

I notice you used a sawzaw. Wow. How many blades you go throu?

Did some measuring last night on my setup

my manifold flange 37.8mm
my flange to bolt to manifold is beveled on one side 35.10 on the non beveled side, 38.73 on the beveled side thats where a pipe can slide in and welded
Tial BOV flange-48.04 on beveled side that accepts pipe
inside that meets the "fire ring" is only 39.51.

So my plan is to port match the manifold, new 38mm flange to the 39.51 of the inlet of my tial 44 flange

:D:hack::D

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