AVO Turbo Kit Stage 2 - work in progress

[Huehuecoyotl]

Awesome response thanks! You guys are making solid power and great TQ, it makes total sense youre using more injection capacity than some other setups. So much air on tap looking at the boost curve, this stage 2 setup sounds fun as heck

Great results Paul, keep up the great work.
tell me this: I was driving a members car that has a P&L kit..

why did you guys spec a separate pump for oil flow while some other turbo kits look like they are just taking oil off the motors supply-there is that orifice plug to the left of the ac compressor, and why the need for a reservoir? I see some kits that look like they are turbos but have less sophisticated plumbing. You must be addressing something? can you share what the advantage is of your way vs the simpler cheaper way? Some of the complexity has been something I'm trying to make sense of. Flow, heat what is it? Is an oil cooler part of the stage 2 kit? radiator? are the dyno's above on stock injection, at 8 and 10 psi respectively?

While I have adopted one vendors kit for one of our cars, there us no final decision on what the 'other brz' in my household will get, so my questions are both out of curiosity and consideration as a prospect.

[nonicname]

Originally Posted by AVOturboworld

Still working on ironing some exhaust details out. We know what we've hit on the manual, and this is what we are aiming for with the automatic.

8psi on Stage 1.5, manual transmission, with full exhaust, MAP sensor, 7psi Actuator

for reference, these numbers are exactly what my stock 370Z made. both HP and torque are almost identical.

[sw20kosh]

Originally Posted by Huehuecoyotl

why did you guys spec a separate pump for oil flow while some other turbo kits look like they are just taking oil off the motors supply-there is that orifice plug to the left of the ac compressor, and why the need for a reservoir? I see some kits that look like they are turbos but have less sophisticated plumbing. You must be addressing something? can you share what the advantage is of your way vs the simpler cheaper way? Some of the complexity has been something I'm trying to make sense of. Flow, heat what is it? Is an oil cooler part of the stage 2 kit? radiator? are the dyno's above on stock injection, at 8 and 10 psi respectively?

Correct me if I am wrong, but they are using a mechanical oil scavenging pump to return oil to the engine/oil pan.

The reason for having this setup and not the "typical" turbo kit oil supply/return set up is because the turbo is mounted below the engine.

The P&L turbo is above the oil pan so oil can just naturally drain down from the turbo and into the pan. This is the "conventional" way to do it.

Low mount turbo's do have their advantages though. =) Ptuning and AP use low mount turbos.

[JP]

Originally Posted by Huehuecoyotl

why did you guys spec a separate pump for oil flow while some other turbo kits look like they are just taking oil off the motors supply-there is that orifice plug to the left of the ac compressor, and why the need for a reservoir? I see some kits that look like they are turbos but have less sophisticated plumbing. You must be addressing something? can you share what the advantage is of your way vs the simpler cheaper way? Some of the complexity has been something I'm trying to make sense of. Flow, heat what is it? Is an oil cooler part of the stage 2 kit? radiator? are the dyno's above on stock injection, at 8 and 10 psi respectively?

Second time you've asked this...

The AVO scavenge pump/resivour is the same design as the factory low-mount turbo FA20.

Other kits with the turbo mounted above the sump oil line use gravity feed for the oil drain and do not require a scavenge pump.

Other low-mount turbo kits in the market use electric scavenge pumps for the oil return. I personally prefer the factory/AVO solution with the cam-driven mechanical pump and resivour.

[AVOturboworld]

A better question is: Why does Subaru want to mount the turbo below the motor?

Answer: Because the exhaust ports are below the motor.

Shorter the path from exhaust ports to turbo, greater the efficiency. On an inline 4/6, this means the turbo will reside higher than the oil pan naturally. The boxer motors have exhaust ports at the bottom of the motor, which means that, if you wanted to maximize efficiency, you had to mount the turbo below the motor. They didn't mount the turbochargers up beside the motor in the EJ series because it was more efficient, they did it because it was easier to do a gravity feed solution on their 20 year old engine design than to redesign the engine from scratch for a oil scavenge system. Finally, the FA series motors came, a total redesign in which they also incorporated a oil scavenge setup.

[Tansey86]

Turbo positioning on Subaru's are actually quite poor from what I hear. Something about the turbo causing heat near one of the cylinders and causing detonation.

[AVOturboworld]

Originally Posted by Tansey86

Turbo positioning on Subaru's are actually quite poor from what I hear. Something about the turbo causing heat near one of the cylinders and causing detonation.

If you are talking in reference to EJ motors, I think that's a generalized rumour (amongst a lot of others) to explain why somebody blew up a motor. There's a lot of other factors that would and could cause detonation before the heat from a turbocharger would.

[Brody602]

Originally Posted by AVOturboworld.com

Stage 2 Kit Hardware:
The AVO Stage 2 Kit utilizes all of the hardware of the Base Stage 1 kit, and adds on the following components:

AVO 7psi Actuator
3-bar MAP Sensor
AVO Street Breather Tank system with Turbo PCV Valve Upgrade
AVO Ceramic Coated Cross-over Pipe
AVO Stainless Steel Front Pipe with 5" Metal Cat
Stage 2 Base Map [EcuTEK]
Blow-off Valve is sold separately. EcuTEK License and Cable are sold separately.

Pulled this from your website, the breather tank is included with the 6k price tag? Thanks


P.S. Avo, I hate that you can prpduce an amazing quality product, looks like my wallet is going to be 10k to 11k more broke. :'( Stage 2, BOV, ecutek license + cable, cat back exhaust, dyno time and possibly a clutch,

[gdrider77]

yeah, this is looking epic...just waiting for my stuff to ship....wait is killing me

[AVOturboworld]

Originally Posted by Brody602

Pulled this from your website, the breather tank is included with the 6k price tag?

Yes, that is included in there.

[Sportsguy83]

Originally Posted by AVOturboworld

Yes, that is included in there.

We need to chat :happy0180:

[DriftEightSix]

Can't wait to see the 300hp numbers

[Huehuecoyotl]

Originally Posted by vubaru

Why don't you join our club?

Get the best of both worlds, SC and TC.

Keen as I am on TQ offered by TCs, I think I will observe a few more systems get installed before making up my mind for the 2nd car, AVO recommended a Fuel pump be installed over a certain PSI, and sure, indeed, there is added TQ to be had with the Stg2 TC setups as I see it, that makes me eager, but I see some install pitfals turbo installers need to avoid(the boom thread really scares me), as products and install instructions evolve, namely on fuel pumps, seems some arent as well evolved as others-yet, and some kits offer greater complexity than others, so I am taking it all in before I pull the trigger again to best assess whats best for me, my budget and rather unforgiving environment. While AVO product appears to be nicely developed, the supporting marketplace picture is unclear to me, at this point.

[Sportsguy83]

First rev's after AVO install:


[ame="http://www.youtube.com/watch?v=oNXE5A4aT1I"]First Startup after BRZ AVO Kit install. - YouTube[/ame]