Which turbo guys? - Page 2 - Subaru WRX Forum
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#16 Old 06-24-2010, 10:33 AM
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Quote:
Originally Posted by RcrsWetDream View Post
No way in hell I would pay almost 2 grand for the avo... Barely bigger than the 52 to boot.

They claim hella spool but from their site

"We saw 16psi of boost at 3300rpms. Now, this is not due to the turbo alone, of course, as there is a full set of engine modifications to support this turbo."

On my vf52 I hit 19 psi at 3300 rpm's, 21 by 3500.

To each their own though.
1. You can't compare PSI on different sized turbos like that. Running 16 PSI of boost on an AVO 380 is not the same as running 16 PSI on a VF52. The AVO makes equal power with less boost.
2. You also can't compare peek power either. With comparable mods the old AVO380 will be making in excess of 40 more AWHP over the VF52. The bigger difference you need to consider here is the AVO will be holding and increasing that peak power all the way to redline where as the VF52 runs out of breath way before the AVO380. If you look at the power difference from where the VF52 dies out and how the AVO keeps on going, the difference is huge. There is no need to taper off boost in the 380 like you have to do with the VF52.
3. The AVO is a ball bearing Turbo not a journal bearing turbo like the VF52 so once you install it, the AVO should last the lifetime of your car.
4. The new AVO380 version 2 spools quicker than the old 380. I don't think they have any dyno charts up for that yet but I am willing to bet the difference between the performance of the AVO380 v.2 vs the VF52 will widen even more.
5. Most enthusiasts that mod their car and run them at the track don't ever let the revs go much lower than 4000rpm anyway. for street use if you like low end power and shifting really early the stock td04 in the 2008 model is quite good for that. In that case you could really save a ton or cash.
6. the AVO will get you to over 350 AWHP if that is the goal where as the VF52 as good as it is will not. Not that here is anything wrong with that. The potential of up to 320 is pretty good.
I'm not saying the VF52 is a bad turbo. After all I do have one too. Just not in the same league as an AVO 380 for making power.

Fabio
2008 VF52 WRX Opensource Magnus Motorsports Stage 3 Tune
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#17 Old 06-24-2010, 11:08 AM
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That info I had is from the v2 380. They don't even have the original on their site anymore.

I'm not arguing that the 380 will outperform a vf52, there's just no way I can justify an 1800 dollar turbo over the vf52 for maybe 40-50 whp... If I'm gonna drop just short of 2k on a turbo you can buy the new dom 4.0 xtr, or the 5.0 for another $100.

I stand by saying get the vf52. The avo is the better turbo and will for sure get you 350 whp, but the cost is just stupid high.

VF52, TMIC, 1000cc injector dynamics, fuel pump, headers/manifold, intake, E85. I that'll push 320-340 whp and that is still plenty fast.


The turbo may be good, their price point however is way off the mark.

-Chris
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#18 Old 06-24-2010, 11:11 AM
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Quote:
Originally Posted by synolimit View Post
pretty good price but the pics show a need for a FMIC no?
They haven't officially released the one I'm talking about yet. Email blouch directly, it's a direct bolt on 18g or 20g solution. Intro pricing is $1200, then they will probably follow the other 20g setups and run about $1400.

-Chris
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#19 Old 06-24-2010, 01:34 PM
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Quote:
Originally Posted by RcrsWetDream View Post
I'm not arguing that the 380 will outperform a vf52, there's just no way I can justify an 1800 dollar turbo over the vf52 for maybe 40-50 whp... If I'm gonna drop just short of 2k on a turbo you can buy the new dom 4.0 xtr, or the 5.0 for another $100......The turbo may be good, their price point however is way off the mark.
Is the Dom 4.0 bolt on or do you have to buy a front mount and rotate the turbo? The Dom 4.0 is about the same price point as the AVO Turbos. If you need more power like the Dom 4.0 XTR provides but don't want to go crazy all at once, AVO also has the AVO 450 and 500 which cost about the same as the 380 and are also direct bolt on. None of those turbos including the Dom 4.0 will show much better gains than the 380 unless you get a FIC and very expensive engine work though. Once you are pushing over that 350 whp mark you really need to consider upgrading internal engine components and sourcing a stronger transmission and/or gear set among other things. it's never "just $100 more".

That being said, both the AVO 380 and VF52 are good choices and no longer the only options out there. The VF52 is more than plenty for most people. It all depends how far you eventually want to take the mods. The AVO has a little bit more room to grow, and a real whole lot more if you don't mind a bit more lag and go for the 450 and 500 series. The advantage being direct bolt on so you can grow if you ever get tired of 350 AWHP and you have the cash to do the bottom end up in the future. The AVO should theoretically outlast the lifespan of the VF52 turbo as well and if it does for whatever reason die an early death, the AVO turbos are rebuildable so not all is lost.
If I were to do it all over again, I would look into the BNR turbo upgrades and compare them to the AVO line up. My 2 cents.

Fabio
2008 VF52 WRX Opensource Magnus Motorsports Stage 3 Tune
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#20 Old 06-24-2010, 02:04 PM
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The dom's need an FMIC or swap to the sti intake mani and tmic layout. Either way you're looking at 500+ in extra work to run the dom. Shouldn't have to rotate it though.

Only reason I compare the avo to to the dom is comparing price to power potential. yes there are other things to consider, but when you drop 1800 on a turbo that can push a little more than the vf52 (look how avo titles their turbos- 380, 450, 550 - those are crank hp figures) Although I've seen the 380 push 342 hp 365tq with 93 octane on a mustang . Best vf52 I've seen is a setup very similar to mine making 345hp/384tq on E85 on the same dyno. Stock on the dyno is about 230-240 hp/240tq. I bet the avo would be coming up on 385/415 on corn.

Other than that,

-Chris
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