There isn't enough data available yet about the WR, the SS55, or the 20g to give you a solid answer. I went with the WR because I want mine to look stock under the hood and still have usable street power. I am getting close to having it tuned and have been driving it a lot. I have to say that without a tune, you don't get a huge boost in peak power, but the power comes on earlier and stays all the way to the top. I really needed to learn to drive it all over again. The power used to drop off and I would shift due to lack of pull, after bouncing off the rev limiter a few times, I realized that it is still pulling hard up top.
Now, if you don't want to wait to see how things play out, I think the next best bet would be the 3071. You will have a longer spool time, but you will have massive top end. If you plan on road course or autox, I don't think this is the direction you want to go though. Then, there is the EVO IX turbo coming. There is a little noise starting about that one having a much better compressor housing.
Good luck with your choice.

 

Yeah, anyone on the fence about these turbos should really wait it out. Every week we hear about more dyno sheets and records falling for stock and stock-ish turbos.. But in reality, these turbos aren't for everyone.

I have a 20G turbo going onto my car.. I have access to another car not as highly modified with a WR.. I will have the opportunity to assess what the different turbos feel like, I also have another friend with a WR on a similarly modified car to mine, so it should be a closer comparison.

My personal opinion is "its not for everyone" there's more to making power than just bolting up a new turbo.. When your building a combination, its the sum of the parts, and sometimes less does more when your combination is right for the car. So we'll see.. From a price per horsepower perspective, I think it really may rank up there with modifications that enhance drivability and power under the curve, without making significant gains in peak power (Exhaust Headers and O2 housings, or throttlebody, ported intake manifolds, rank up there, or a ported head, all cost more money than the gains would indicate, but have an impact when combined with other matched modifications)

Again, if your on the fence, give it time, this stuff is just too new to really jump on any particular product. There are specific reasons someone would consider this type of turbo over a bigger turbo upgrade.. I've said this many times before, but the people who choose turbos like this are like me, looking for gains, without making sacrifices in things such as reliability, servicability, drivability in traffic or part throttle, etc.. When you take those things into account, then the gains under the curve are well worth the money... The one day you get stuck on the side of the road with components that can't easily be swapped for stock at the dealer or local shop, then you'll kinda understand my perspective.

 

3071....

 

That about sums it up...

 

When someone comes out with a ball bearing section for the stock/10.5 housing w/ the lightened wheel, I will be all over it. For the money though it is starting to look like the ATP 3071 for me...stock manifold can be used (or borla header in my case), stock appearence and I just have to give up about 300-500 on the spool up. (I checked my dyno sheets and compared) But when it hits...look out I will be approaching 400 whp on 93-94 octane

 

I recently "bolted up" the WR and at this point on stock injectors (boost no higher then 20psi) and a temp flash for a 10.5 housing all I can say is the turbo responds ultra quick between shifts, hits incomparably harder then my previous 9.8t and does not surge, not with my Forge DV with one of the stiffer springs in either the stock location or in the new location with my Injen Intake kit (on the UICP).

Honestly, I can't say what I expect from this turbo at this point, I've been chasing boost leaks the past couple days and just tonight having thought that I sured everything up its taken a liking to blowing off the lower ic pipe on hte cold side. Spool up on the car is "violent" and thats with the stock actuator adjusted somewhat loose (set from FP). I hope to have some more conclusive impressions to post in the next couple days but I honestly don't see how this turbo will not make considerably more power then my previous setup even on straight pump.

 

I paid 2k for my atp 3071 and installed myself, very simple install.

 

Sweet!!! I am awaiting your findings

 

How do you like your ATP kit?

 

I was waiting on one of these modified stock turbos initially but am now of the belief that my money will be better spent on an entry-level turbo kit from ATP/Vishnu/BR that's going to cost only a thousand or so more but gives alot more power. Reliability wise, we can't say for sure that the modified offerings will be as reliable as the stocker.

 

Well, Its not really "Just a thousand more" because of other modifications required, but its no different than any upgrade path.

I do know that the smallest of the aftermarket turbo kits will produce around 440whp, these modified stock turbos are beginning to approach those numbers in fully modified cars.

I think the point that people who say this are missing is, there is a need for a turbo like this, and a market, simply put, there are those of us who don't consider aftermarket turbo kits practical. Performancewise, you have to go through a similar upgrade path as any other setup, not just bolt on the turbo and go. But there are those of us (and I've posted this before) that consider several things when choosing upgrades. In my case, I don't want to be stuck somewhere on a road trip without the ability to easily service my car. As soon as you begin to modify things to that point, you take the risk of uneccesary downtime on a road trip. I realize many of you folks don't really care about that, but after working with so many different cars and combinations, I've come to the conclusion that less is more, I've spent most of my time picking a combination that I feel will work best, not throwing together the biggest components I can.

In reality, many of the people who put big turbos on their car don't really understand what their getting into, and many of those guys either take the turbo off, or sell the car to someone else. I want to enhance what the Evo does well, not compromise it.

 

the td05 hotside is the limiting factor! you can't stuff more air into a motor thats backed up from the hotside. these turbos are a waste of time and your money. talk to any reputable turbo company and they will tell you the bigger the comp wheel the bigger the hotside needs to be if power is to be made. even a clipped TD05 is gonna flow a little more but it's also gonna lag more then say a WR. I guess only AMS recognizes this and doesn't want to rip you off. my 2c.

 

I got $ for anyone that can put a Garrett BB CHRA in a TME/WR. Stateside that is, (I don't have THAT much $ ) That's kind of my personal holy grail.

But, of course that's a waste cuz I could get like 9000AWP with a Dynoflash, Noz and a GT35Rrrrrrr! for the same $.

 

woow how many WR vs. 20g vs. just 10.5 threads are we gonna have?!! Everybody is asking the same question. First use the seach feature we offer here on evom it's great. Then second wait till more info becomes available about the different options listed above.

 

I have to agree with you. We have been saying this for some time now.
But to give some credit to other side of the line...
I believe that many of the people here just want a simple upgrade to the stock setup without the hassle of too many modifications to exhaust, intake, ETC.
Some of the kits really are not that easy to install on this car without changing alot of the asthetics.
With that being said the drive behind some of these bolt on turbo's was to give the majority an option that would hold boost a little bit better than the stock turbo above 23 - 25 psi on the street.
NOT that they are better or more powerful than a good aftermarket unit.

MY opinion is to fit a GT3071 on the Evo. IMHO it is the best all around turbo for this car. I have personally tested many , many turbos for this vehicle....
I have it on mine. It runs low 11's on the track with only 20 psi, and the spoolup around town is fantastic. I recommend it to everyone. With the proper setup it can be used with the stock MAF and stock computer to keep the car Carb legal. It's only my 2 cents, but I again agree with you. You need a larger turbine wheel to increase the stock compressor to a point where you are making some conciderable gains for the money spent.