The car feels great...just like when I had the stock turbo. The engine note is a little deeper and the bov makes a different noise...but when you step on the gas look out! for this turbo set up I'm told that the 3071 will make much more tq when the boost is higher...the biggest difference is the usable torque it's at full tq from 3800 to redline! Much different than the stock turbo which was up for 1,000 rpm only! The reason I didn't get the 3076 is the spool up. It starts about 500 rpm higher than the 3071...it takes out the sweet spot around 3500. The 3071 is supposed to max out at 450 whp! Thats enough for me and quick spool up as well. The 3076 may make about 25-40 max more hp, but it comes on later and stronger. The thing I noticed about hte 3071r is how smooth it is. You can def. feel the power but not as if you are being rear ended by a big rig...which makes it more streetable. As for the alky kit, I have heard good things about it. I don't know anyone personally who has it though. The 3037 will give you the most potential hp, but I can't deal w/ my buddies car that spools up at 4500 rpm and makes peak boost at 5k...too much like a race car to me.

 

im definitely interested in the comparison between your car and your friend's car, especially since he is in a high elevation area. its been very tough for me to decide on what kit to go with. i have been trying to research on the forums for a couple of months now and still cant decide. there are no tracks around where i live, so my car will be only driven on the street. i am looking for the most usable power as long as it provides the best performance. i would like to know further comparisons between your car and your friend's car. an option i am considering if i get the 3076r is a stroker kit. the local guy that has the kit says he gets full boost at 4500rpm on 3rd gear. performance wise, is his car faster than yours? what kind of diff do you think there would be between both cars on pump and alky? thank you for your reply, i definitely appreciate your help.

btw, how do you think the 3071 and 20g would compare?

 

3071 should make more power as it uses a higher flowing exhaust housing and generally can flow better up top because of it.

 

here is the dyno results from my friends car. he got it dynoed at the same place I did.

430whp and 360 wtq

MODS:
ATP 3037 turbo kit
Revolver cams
25psi
100 octane
Greddy R Spec FMIC
660 Greddy injectors
3 Injen exhaust
DynoFlash with super afc 2

His car has revolver cams, mine hks 264/264 he was at 25 psi on a bigger turbo, he used 100 octane, I used 93-94, and the other mods are comparable.
In my opinion my turbo is better for the street. his is faster though. (he is crazy, he took me for a ride after the turbo kit was installed and hit 110 mph in 1 block from a stop, on city streets.) The boost comes on much stronger than mine. My boost is very smooth, but powerful. I was in the same situation you were, when I posted this thread. I was a phone call away from ordering a white rabbit for $1550, then I started reading about the 20g. I talked to my mechanic, he said save up for a kit...you will be much happier for the money spent...he was right! My mechanic has had personal experience with the stroker kit-he loves it a 2.4 l. kit makes the boost come on sooner and gives more power all around. As far as the 3037s and the 3076r-the 3037s is an older technology than the 3076. The 3076r is a new style of very efficient turbo, just like the 3071. They were designed for the evo 8. His car may be faster, but I don't have to down shift all the time to make the power I want.
As for the 20g vs the 3071...you saw my choice. Much more potential for a full bb turbo vs. a reg. turbo. Remember I made my power on a turbo that loves to spin at 24-28 psi of boost...I was at 20.5-21psi. The full b.b. turbo stops spinning about 1 min. after you shut the car off...with a cool spinning noise coming out of the intake

 

an ATP 3071 is not the same as a true garrett 3071. That hotside adds lag and hinders some topend.

 

Wow, i thought with 100oct the 3037 would make 450+whp at 25-28psi. what do you think your car could make with 100oct and the boost turned up?

you said that the 3076 was a newer version of the 3037s, do you think it can make more power? i really like the 3071 from what people ive talked to have said, but i just want to make sure i dont sell myself short by not getting the 3076. a stroker kit will more than likely be in my future plans.

 

It's that ATP hotside, doesn't flow as well and Lags

 

Where are you getting that from? Are you just repeating what others have said/written or do you have some proof. I have known Dr. Garret he used to get his Audi tuned at Velocity Sport Tuning (a vw tuner) I have talked to him personally about this hot side issue. He said he developed the turbo at his place and worked with ATP to market it. He assured me personally that the 3071r or any gt30 series that fits on an evo 8 will perform just as well as switching a manifold, to get one that does not need to fit an evo 8. There is a lot of hype going around...so I asked him myself. The reason for making the hotside match the stock is so he will sell alot more of his turbos. It won't scare as many people away if they don't have to switch their manifold out. the ATP 3071r was built by Garret specifically for the EVO 8

 

See my above post!

 

My friend didn't push his car...The mechanic who installed my turbo kit also installed his. He thinks he can easily push out another 50 whp with that turbo and another 20 wtq.
If you want the power and want to make sure you don't "sell yourself short" than go with the 3076, the stroker kit will get you on the road to 500 hp!

 

Probably every one I have seen run one of these kits. The 3071 spoolup is hindered and the topend again is hindered, that hot side is not allowing it to make big power. If it WAS, everyon would have one. Vishnu has designed a proper way to mount on that housing to the stock manifold, everyne else uses an unmolested garrett with a proper manifold.


You mean a vender who sells that stuff guarantess it? Right, I can guarantee I would make more power utilizing a AMS/RNR/Vishnu kit, I am only seeing 380WHP on pump with the ATP's, that is pretty low considering the size of the turbo.


You seem very upset, I didn't, mean to cause some conroversy, but these ATP kits leave a lot to be desired and they are compromised, they do not spool as fast nor can they flow enough exhaust gas before detonation.



Right, why wouldn't he PUSH it with 100octane. People are making more then that on pump with a 3071R


And a 3037 is fine, Al went plenty fast on it, wasn't an ATP kit.

 

Here is ATP's answer: Evolutionm can be your friend or your enemby. We have found that
people that
work for Vishnu really try to push people away from our kit after
selling our
kit and then coincidently later coming out with a very similar design
and
started telling people our kit is laggy. We garantee that the GT3071R
we
sell with the .63 A/R is the fastest spooling kit on the market? Why?
Because we tested all the combinations on the EVO8 engine, including
ones
with the full length header driving the T3 flanged turbo, then the
adapter
method off the stock manifold and then into the turbine housing, etc.
We
found that we had to build a custom housing that contours the shape of
the
entry and brings high veocity to the turbine wheel. The result is at
least
300 - 400 then any of the other systems. It's the only kit on the
market
built like that. We have sold close to 300 of these kits since the
this time
last year and all of our customers have come back with "quick spool"
and "awesome" power. There might be 1 or 2 people out of this group
that say
otherwise on Evolutionm, but if you trace them, they are linked to the
Vishnu.


Any other questions you have we will help with it.

Thanks though!

ATP

As for my being upset, I am just stating the facts, and relaying information that I have received. I could have bought anyone's kit but I went with the ATP and have not looked back-literally!

 

Stating facts from the VENDER, please. This turbo makes power, this is true, but not as much as a true unmolested Garrett.


Do you run an atp kit?

 

Yes, I just got it. I hate to bash, but the 3 weeks before I got my ATP kit in a guy went to my mechanic and said he wanted a turbo kit, while my mechanic looked into kits for him, he got impatient and went directly to RNR and had a t3/t4 kit installed from them. They assured him it was a great deal and put out monster hp and tq. 1 week after it was in, this guy went back to my mechanic to show off. My mechanic drove the car, and was not impressed(neither was the guy) he called me to come over and give this guy a test drive in my car w/a stock turbo with leaking lower ic pipe and a blown gasket where the turbo bolts to the manifold. My car with a stock turbo and those other problems blew the RNR kit car away-that RNR actually installed and tuned. If the mfg. actually installs and tunes the car I would think it's the best it can do, right? My mechanic told me what a p.o.s. that kit was, and showed me all the extra modification it took to
make it work. So the bottom line is, you can actually get a turbo kit that is out done by a moderately tuned stock turbo car...so you better do your homework.

P.S. My mechanic pulled the RNR turbo kit off that guys car, and put it back to stock 2 weeks later and a day after he saw and felt my ATP kit. This is the only experience I have had w/ RNR stuff. Everyone bows down to them...except me I guess.

 

That's all tuning, not the turbo or the kit. The RNR/AMS kits do just fine.