Internal Wastegate
03-24-2009, 07:41 AM
#4
I was being serious... I think I already answered this question in a PM to you (but apparently you delete them before the info gets to y0 brainz).
And the dude who said the one on there was set too high, doesn't know much about turbos either. You can adjust the pressure settings several diff ways. I suggest doing some research on waste gates / actuators so you can understand how they work.
And the dude who said the one on there was set too high, doesn't know much about turbos either. You can adjust the pressure settings several diff ways. I suggest doing some research on waste gates / actuators so you can understand how they work.
03-24-2009, 08:03 AM
#5
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Join Date: Feb 2009
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Well the dude acutally has a shop where he builds mostly z's but works on a lot of stuff. So I am going off what he says. Which is probably a mistake cause shops do need to make money. But he said that everyone who uses one like I am talking about doing ends up overboosting and messing up their ringlands. But the thing that throws me off is that if you have either a wastegate or a acutator set at 8 psi and you over boost wouldnt that be the wastegate or acuator itself?
03-24-2009, 08:18 AM
#6
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,296
Yes, sounds like you understand.
"set too high" would be where the actuator is set to open up at. You can change those out so I'm not sure why the internal wastegate itself was in question. (by the shop guy)
What psi is that turbo set to? It is for a Diesel truck, right?
"set too high" would be where the actuator is set to open up at. You can change those out so I'm not sure why the internal wastegate itself was in question. (by the shop guy)
What psi is that turbo set to? It is for a Diesel truck, right?
03-24-2009, 09:09 AM
#8
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Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
..... uh.... the actuator activates the wastegate once a certain psi is reached. its like a diaphram that wants to only see a certain peak psi. once that peak psi is met it starts to expand and in so moves the pushrod out with it which will open the wastegate to allow exhaust to start bypassing the turbine wheel, it only allows so much past so that it stays at that peak psi. you should read up on turbos. maximum boost is a great book. also, if i was going to use a turbo that big, i wouldn't mess with internal wastegates anymore and just go external at that point.
03-24-2009, 09:22 AM
#10
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if its for a diesel truck, its probably big, not huge, but big, and pretty efficient, it was meant to reach full boost on a much larger displacement motor at 1.6k rpm and full boost might have been 40psi.
03-24-2009, 10:00 AM
#13
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Location: lemont, Illinois
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yup yup! and im not saying it needs to be done, but if you ever start using it how it was meant to be used and up the boost closer to over 15 maybe 20 an external gate should be used. its just more or less preparing for the future. plus they sound BA with an open dump
03-24-2009, 01:26 PM
#19
03-24-2009, 01:41 PM
#20
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Join Date: Feb 2009
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Screw that. Looks like I will be ripping apart my enigne and upgrading internals. I want 350 to the wheels.
03-24-2009, 06:07 PM
#23
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Join Date: Sep 2005
Location: lemont, Illinois
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but also, i think bigphil just did what i said and maybe a bottom end rebuild and nothing for headwork and used a stock NA zx 5spd for like 350whp or something along those lines i think, so really.... theres no good answer haha
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