Big Single Build

[ItTricky]

damn buddy, looks like you're coming right along.

[j2k4]

Jealous of your pile-o-parts, Kev.

[Boost4VR4]

Ordered Maximal Performance Solid Motor mounts and Brownline Digital Torque Wrench.

[Boost4VR4]

So I had a post on the other forums regarding the wastegates leaking on the plunger side, so I thought I'd explain what some of the parts in the wastegate kit are.

You have the basic wastegate:


Note the surface of the ring is opposite that of the plunger in the wastegate as if to make a seal. However when you place the ring in this flange, it hits the plunger:


You need to put a vacuum pump on one of the nipples on the wastegate and pull the plunger back with vacuum. In my case, I was testing the amount of vacuum required to pull the plunger back:




Note, this is what the ring looks like when the plunger is down:


Then insert the ring with plunger up:



If you have a collection pipe like I do with the flange already welded on, you will want to insert the gasket and put your flange on and tighten it:



Now you will have the wastegate sealed and it should barely leak any air, a little is OK. You can pressure test it by hooking it up to an air compressor. I haven't pressure tested it on the valve side yet.

[Boost4VR4]

Here's a really good guide on installing external wastegate:

http://www.treadstoneperformance.com...nstall-112.pdf

[Erron Spalsbury]

That's the same type of gates that I'm using as well. They do work great. The gaskets however cook up and blow out fast. I made a set from sheet copper that hold up much better than what they come with. Thin sheet too, cut the outter portion with a pair of scissors.

[Boost4VR4]

That's the same type of gates that I'm using as well. They do work great. The gaskets however cook up and blow out fast. I made a set from sheet copper that hold up much better than what they come with. Thin sheet too, cut the outter portion with a pair of scissors.

Good tip, Erron, I was thinking about that too, these ceramic looking gaskets look like they will get brittle fast.

[Boost4VR4]

Ordered Synapse Synchronic BOV.

[Erron Spalsbury]

Good tip, Erron, I was thinking about that too, these ceramic looking gaskets look like they will get brittle fast.

Yes sir. Mine came with those and if memory serves they lasted about 20 minutes on the track. I think they just burn up, crack, then blow out.

[Boost4VR4]

Yes sir. Mine came with those and if memory serves they lasted about 20 minutes on the track. I think they just burn up, crack, then blow out.

I should be able to cut anything I want now that I have a bandsaw in the garage. I can cut out some meaty wastegate gaskets.