makemeknowit
Kwisatz Haderach
Gotpropane turbo, 22R. Was like this when I got buggy. My turbo knowledge is limited. The 2 short clear hose pieces and the 2 on the bov
Nope, there are 2 waste gates and 0 bov's in these picsAre you guy's using "wastegate" and "bov" interchangeably???
Cuz them 2 units are on opposite sides of the piston....
In this case.
I R confuse ed
First off: does it work, in a way you're "generally" happy with, as it is? If so, great, don't change much. If not, why not, and read on. I don't specifically recognize that turbo, so I will speak generically.
The actuator on the wastegate that's actually embedded in the turbo has two ports on it, one to hold it closed (most likely the rod side) and one to blow it open (most likely the cap side). Normally, you'd have manifold pressure hooked to one (or maybe both) of those, but with a boost solenoid (or two) controlling how much pressure is being put to the wastegate actuator, in order to manage boost.
To illustrate this a bit, on my turbo setup, I have only one wastegate actuation line. The can has a spring in it, and if I put pressure to the line, it opens the wastegate at some point when it overcomes the spring. I have a boost solenoid that is engine computer controlled, and it (grossly oversimplified) says X% throttle = X% wastegate pressure blockage. So I mash the gas, the boost solenoid says "no boost for you!" to the wastegate, and the wastegate is given zero help from the engine boost to open. At that point, it's just exhaust pressure vs. spring pressure to blow it open.
In your case, with nothing hooked up at all, you have full "natural" boost all the time, no help from what a lot of turbo guys call "dome control" to add more holding-shut help to the wastegate spring(s), and your turbo should make max designed boost for the airflow situation, all the time.
Other stuff: the two elbows on the aluminum ducting, should be either connected to something (boost gauge, blowoff valve, wastegate actuator) or plugged off, depending on what you want. Open is bad. Connecting one of them straight to the wastegate actuator can (depending on which side) can potentially create either minimized boost if you help the wastegate open, or runaway boost if you force the wastegate shut. Usually those would be attached to one side of a boost solenoid, and the other side to the wastegate actuation, to manage boost, but that would require either a boost control ready engine computer and boost solenoid, or a standalone boost controller (and still a boost solenoid).
The blowoff (?) on the exhaust manifold looks like just a popoff in case exhaust pressure goes too high. I'm not sure why you'd need that, much less why you'd want that dumping into the engine bay, unless the wastegate in the turbo itself is grossly undersized or non-functional. I'd probably remove that thing entirely and plug off its left-behind hole.
External waste gate is pre turbo, to bleed off exhaust pressure if needed.Boosted exhaust
Wastegate on outgoing (exhaust manifold) valve side, sounds jake ish
Talked to a local friend who knows turbos, he said this exactly and P.O. likely did this to keep boost low.In your case, with nothing hooked up at all, you have full "natural" boost all the time, no help from what a lot of turbo guys call "dome control" to add more holding-shut help to the wastegate spring(s), and your turbo should make max designed boost for the airflow situation, all the time.
Going to give this a try. Said turbo friend has a manual boost controller we will hook up.Op, hook up internal waste gate, plug extra ports and see what happens.
Motor has a cam to compliment the turbo and "as is" makes far more power than my previous 22R ftoy that was n/aFirst off: does it work, in a way you're "generally" happy with, as it is?
Here's the info from gotpropane/CaryI don't specifically recognize that turbo, so I will speak generically.
Ok
seems like a lotta work when the internal was already there.
yes I read the "they don't work so well" part, but no boost control?
I bet the pyro is mia....
poor yota
+1 on hook one up and test