Hey guys, as I have been doing some more research on my turbo project, I have come across two types of turbo wastegates, internal and external. Which one is better? I would like for the wastegate that I get to be adjustable from inside the car. So what are the pros and cons to both? Thanks, Paul Moore
Trying to become the most modded out N/A 2nd gen sunbird 4 cylinder on the org with a..... screw that, I'm going turbo!!!
2.Slow OHC I4
Ported cylinder head, intake and exhaust
Relocated IAT with a custom WAI with a 6x9 K&N conical filter
All this, and I still can't go fast.............yet!!
Well, speaking from first hand experience, I would have to say that External is the best way to go.
Internal is not bad, but sometimes it is harder to control the boost and sometimes I would get boost spikes.
With external, I have found that it is a bit easier to control boost levels being that it is a bit more accurate.
As far as controlling boost levels from inside the car, you are going to need and electronic boost controller OR Trubo XS has a dual stage unit that can be changed from low to high boost with a press of a button, but the 2 stages of boost has to be changed under the hood first then you just use the button to change between the 2 set levels.
Either wastegate that you decide on will work with any boost controller and you can control boost levels from inside the vehicle with a electronic boost controller if that is what you want.
Internal is still not a bad option if you decide to go that way, but I am a fan of external ever since I went with a new manifold setup with a external wastegate.
I also use a Greddy Profec B Spec II Electronic boost controller on my setup and I would not use anything different. Very easy to use and can change from high to low boost with one button press and boost can be adjusted with just a turn of a knob.
Hope that helps some.
Later,
Jeff
--------------------------------
2000 Turbocharged Silver Z24 5spd
Cardomain Site
also internals usaly have a problem with heat
"
Kick azz is my boost hero!!! 
"
Not to mention they love to creep..
z24 aint afraid of no ecotec
We use to use internal for our kits and recently switched to external. I prefer the external MUCH better...
MaximumBoost.net
1-888-TURBO-31
sales@maximumboost.net
TAX ID: 45-8013458577-3
Thanks for the input, external it is!!
Trying to become the most modded out N/A 2nd gen sunbird 4 cylinder on the org with a..... screw that, I'm going turbo!!!
2.Slow OHC I4
Ported cylinder head, intake and exhaust
Relocated IAT with a custom WAI with a 6x9 K&N conical filter
All this, and I still can't go fast.............yet!!
