stand alone waste gate . possible ?
Thread Starter
On The Tree
Joined: Jan 2013
Posts: 104
Likes: 0
From: Regina, canada
stand alone waste gate . possible ? Can a person run a stand alone waste gate with out a controller, and if so, do they make one that is manually adjustable ?
I want to find my desired boost pressure and just leave it there without having to worry about a controller.
Is this a possibility or do I need to run a controller ?
Im looking to run somewhere between 7 and 12 lbs I think .
I want to find my desired boost pressure and just leave it there without having to worry about a controller.
Is this a possibility or do I need to run a controller ?
Im looking to run somewhere between 7 and 12 lbs I think .
Teching In
Joined: Oct 2012
Posts: 17
Likes: 0
Yes you can run a wastegate without a boost controller. The prssure is set by the spring inside. So to change the boost level without a boost contoller, you will need to swap springs. There are some adjustable wastegates on the market, but I personally have no experiance with them. I don't trust their design. I feel by adding more preload to the spring, you are also decreasing the overall amount it can open. Thats all for external gates at least. Internal gates can easitly be adjusted but changing the length of the rod. I would just get a manual controller though. They are cleap and easy to use. Remember though, you can never run lower boost than the wastegate is set at. Boost contollers only increase the boost above that.
I assume your running the common 76mmish on an LS engine? Check out the Precision Turbo 46mm gate, $315. Run the vacuum line from the compressor outlet to the bottom port on the gate and leave the top open to atmoshere.
Thread Starter
On The Tree
Joined: Jan 2013
Posts: 104
Likes: 0
From: Regina, canada
So, I can assume, this shud work for all waste gates,,Ive got a turbo smart one coming....and I dont really want a controller, if I can get by without it..
and yes a 7675 turbo for a ls engine..
and yes a 7675 turbo for a ls engine..
TECH Enthusiast
Joined: Feb 2007
Posts: 625
Likes: 0
From: Raleigh, NC
When you say controller, do you mean electric controller, or manual controller? Manual boost controllers are simple and cheap, basically they are just bleeder ball valves.
You can DIY one for cheap, google DIY MBC and you will get lots of hits.
If you want NO boost controller at all, then ignore.
You can DIY one for cheap, google DIY MBC and you will get lots of hits.
If you want NO boost controller at all, then ignore.
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9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
Can a person run a stand alone waste gate with out a controller, and if so, do they make one that is manually adjustable ?
I want to find my desired boost pressure and just leave it there without having to worry about a controller.
Is this a possibility or do I need to run a controller ?
Im looking to run somewhere between 7 and 12 lbs I think .
I want to find my desired boost pressure and just leave it there without having to worry about a controller.
Is this a possibility or do I need to run a controller ?
Im looking to run somewhere between 7 and 12 lbs I think .
Chosen spring pressure will approximately equate to your desired boost level, but there are many factors that can influence it
And yes you need to run a signal line from a boost source to the wastegate. In effect that is the primary control method.
This can be played with to increase desired boost pressure, and can be done so very easily. WHich is why it's often preferred to choose a slightly softer spring, and then bleed off to your desired boost pressure
