Turbo Questions Here

Devil Man

Devil Man

Spectator
ok as you all know i had that thread to try to figure out how to swap a rb in my shit box, well got that one figured out. Now the problem is for me is the turbo's im not too familer with turbo's. so if you guys could explain the differences in the set ups and in rcir, and atmos blow off the pros and cons, internal waste gates external waste gate. anything else that im missing, like i said i dont know. and also the intercooling, can you go to big??? ok thanks
 
I guess i'll get it started you have a T3 flange on your stock manifold. so you have many options on what to do.

1. get a biger internaly wastegated turbo that has a t3 flange
2. get a biger turbo and have them weld a wastegate to your stock manifold (not really good for flow)
3. get a ss auto crap manifold and have it break in a month.
4. get the full race manifold but get ready to give away your first born lol.
5. have a custom setup made.
 
hehe glad you popped the cherry. haha ok so its a t3 flange and custom setup, where could you get that done, any of you peeps know anything over there? thanks
 
madcowCONV said:
2. get a biger turbo and have them weld a wastegate to your stock manifold (not really good for flow)
Click to expand...

That's not really true. An internal gate is horrible for flow. People see gains in power by welding an external gate onto stock manifolds.
 
A wastegate is a valve that regulates how much boost a turbo makes by diverting exhaust gases away from the turbine when its opened.

Basically, if it weren't for a wastegate, the turbo would continue increasing in rpm until one of the following occurs:
1. Your engine grenades
2. Your turbo grenades

There are 2 primary types of wastegates, internal and external. Internal wastegates are more often referred to as actuators. They reside on the turbo (usually looks like a gold diaphragm) while external gates are attached to the manifold (usually where the collector resides).

Got sick of typing and found this for you:
http://en.wikipedia.org/wiki/Wastegate
 
Tonymac said:
1. Your engine grenades
2. Your turbo grenades
Click to expand...
:laugh: :laugh: :laugh: :laugh:

for some reason i find humor in what you just said. ok thanks for that link it makes things easier and now i know what you are talking about in the internaly waste gates
 
Tonymac said:
That's not really true. An internal gate is horrible for flow. People see gains in power by welding an external gate onto stock manifolds.
Click to expand...


Hey you learn something new every day :D . But I was comparing a custom manifold to a stock manifold not internal to external wastegate.
 
Devil Man said:
is there a recirculating BOV or is that just the waste gate that can riculate or dump it out? thanks
Click to expand...

The wategate dumps exhaust pressure.

A BOV dumps intake pressure when the throttle plate is closed.

Both are similar in design and operate off vacuum but their purposes are different. The BOV prevents compressor surge and I already explained the wastegate.
 
ah gotcha so how does a bov recir? where would it go to? thanks

oh and all this is controled by vac lines right, so where do boost controlers come in? thanks
 
Just come over my house...or we could meet up at towers. I learned about turbos from doing my ka-t...Hands on...the best way to learn...
 
off topic but when are the meets at the towers?

Back on topic:

the way a recirculating BOV works is it takes the air that is released from the turbo surge and places that air back into the intake before the turbo compressor.

2778_8lo.jpg

^ Sorry this image isn't bigger, but it's a great, simple diagram to reference.
 
Devil Man said:
ah gotcha so how does a bov recir? where would it go to? thanks

oh and all this is controled by vac lines right, so where do boost controlers come in? thanks
Click to expand...

The BOV (if setup to recirculate) recirculates back into the intake.

Boost controllers intercept the vacuum and "trick" the wastegate. If the boost controller is set to say 20 psi, it will hold off sending the vacuum to the wastegate until the desired boost level is reached.
 
sounds good rb maybe next weekend.

how come there is a vac line from the plenum that says low pressure opens the bov? shouldnt it be high pressure? the rest of the pic i get. if i was to have atomosphere dump then after the blow off it jus be open right? thanks peeps
 
madcowCONV said:
off topic but when are the meets at the towers?

Back on topic:

the way a recirculating BOV works is it takes the air that is released from the turbo surge and places that air back into the intake before the turbo compressor.

2778_8lo.jpg

^ Sorry this image isn't bigger, but it's a great, simple diagram to reference.
Click to expand...

nice find bro!
 
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