AVO turbo kit for BRZ - initial build thread

[AVOturboworld]

Originally Posted by Jeff86

Thanks for the teaser. The scavenge pump is my biggest concern about your setup and I like the fact that I couldn't hear a noisy electric pump. Very curious to see what you are doing. I've heard of mechanical pumps driven off of cam gear. Is there going to be a reservoir? One of my worries is the pump being too efficient and running the turbo dry.

There will be a reservoir, of course. That's the only way to design it.

We don't like the sound of a electric pump either. And with an electric pump, you don't have the control over pump speed that you need (idle vs. higher rpm).

[No Limit Motorsport]

Originally Posted by Batman

@AVOturboworld

Is there any chance of an external wastegate setup on this?

They stated that they would not be using one, since the internal wastegate they use on their exhaust housings perform as designed, and control boost fine.

That being said any qualified tuner shop should be able to add an external wastegate to the kit. Just weld the internal closed, and weld a flange/wastegate to the exhaust manifold manifold.

[Batman]

Originally Posted by No Limit Motorsport

They stated that they would not be using one, since the internal wastegate they use on their exhaust housings perform as designed, and control boost fine.

That being said any qualified tuner shop should be able to add an external wastegate to the kit. Just weld the internal closed, and weld a flange/wastegate to the exhaust manifold manifold.

Thanks, I'm somewhat new to the aftermarket turbo world, I've always tuned up stock turbo setups. Loving this kit so far though!

[djdnz]

Having run an external wastegate on my last car, it's really not worth it on low boost. More piping needed, more weight, more cost, more potential for squeaks. Internal wastegate is the way to go with a low boost application.

[VSGTS14]

yea def, an ewg is not going to be needed. it won't benefit anything, besides noise.

[Batman]

Originally Posted by VSGTS14

yea def, an ewg is not going to be needed. it won't benefit anything, besides noise.

Haha well I'm all about noise, but its nothing a good straight pipe can't fix. I'm used to the 22 psi on my TT so its a new experience. Thanks!

[dsmx17]

Originally Posted by djdnz

Having run an external wastegate on my last car, it's really not worth it on low boost. More piping needed, more weight, more cost, more potential for squeaks. Internal wastegate is the way to go with a low boost application.

An external wastegate is ideal for low boost applications. (just to clear that statement up)

[djdnz]

Originally Posted by dsmx17

An external wastegate is ideal for low boost applications. (just to clear that statement up)

That's exactly the opposite of what I just said...

Internal wastegate is less complexity, less cost, less weight, smaller space envelope. My own opinion is to stay internal until you are running high enough boost that the internal wastegate can't flow enough.


The way i see it, the AVO kit is not really aiming for pure power numbers, it's a fairly balanced and easily streetable setup. I'd imagine that a nice 8psi will give you a 280whp output, which an internal is more than capable of handling. Not to say this kit isn't capable of more, just with the components they have shown off that's my guess as to where AVO had planned to go.

Now, AVO some updates please!

[dsmx17]

I understand its not what you said, im at work so I tend to type less than an entire thought sometimes.

An external wastegate with larger diameter ports than most internal wastegates is more capable of controlling low boost applications with low to zero risk of boost creep.

IE: once the exhaust is free flowing post turbine, a small internal wastegate has trouble opening soon enough/and large enough to keep boost at low pressure. Where compared to a 44mm external wastegate, regulating low pressure regardless of exhaust flow/turbine speed is easily maintained.


*Edit try blowing air into a baloon consistently with a small hole in it VS a large hole and imagine which would cause the baloon to fill more.

[Drift-Office]

^^^ QFT...

Originally Posted by djdnz

Now, AVO some updates please!

^^^ Indeed! You should have like Friday updates for all of us every week until this kit comes to market!



Bob

[djdnz]

Agreed, the external will provide better control, however in an application where cost, weight and packaging are to be considered, that is only one part of the equation.

Boost creep can be accommodated for if designed correctly, and ultimately kept within safe limits.

[DriftEightSix]

How much boost can the internal on Handel?

[GC GTS Aero Kit]

Haha I love all your bitching it's laughable.....I know that alot of followers in here don't read before they think or type for that matter.

The best part about this kit is it was designed on JDM model RHD and that all the US companies are developing on LHD...AVO are smart enough to think that both RHD and LHD customers will want this kit.

I get the feeling that alot of US tuners only see the US as the whole picture and this makes me think the R & D of this kit is top notch.

My only downside to this UEL Header design is the boxer burble which being a Toyota Fan I was hoping to avoid on the car just to separate the WRX typecast. This is not a whine just a personal touch I would have avoided if I could.

I am interested Paul in working out the scavenger oil return will there need to be a hole made in the sump for return?

[Celica00]

Originally Posted by GC GTS Aero Kit

Haha I love all your bitching it's laughable.....I know that alot of followers in here don't read before they think or type for that matter.

The best part about this kit is it was designed on JDM model RHD and that all the US companies are developing on LHD...AVO are smart enough to think that both RHD and LHD customers will want this kit.

I get the feeling that alot of US tuners only see the US as the whole picture and this makes me think the R & D of this kit is top notch.

My only downside to this UEL Header design is the boxer burble which being a Toyota Fan I was hoping to avoid on the car just to separate the WRX typecast. This is not a whine just a personal touch I would have avoided if I could.

I am interested Paul in working out the scavenger oil return will there need to be a hole made in the sump for return?

soo... thats just as much whining as anyone else is doing here. sometimes, people have gripes and wording it conservatively doesnt change the fact that its a gripe. either way, it'll be a great kit and definitely one i'm rooting for.