Long story short, i was GReddy turbo'ed before and 270WHP was just not enough after a year of driving..

New setup:

Pfab stage 2 kit with ELT manifold
GT3076R or GTX3071R
ID1000
AEM series 2
Hondata 4 Bar
Turbo blanket
AEM Boost Control Solenoid
AEM Serial Gauge
AEM UEGO Inline Wideband
3" exhaust


Now i'm still not able to make up my mind to go either GT3076R or go GTX3071R

I just LOVED the way my old greddy kit PULLED from 4K RPM but lacked so much at redline...
The car was a blast to drive in "touge" / canyon roads and on the streets it was really nice to have a great lo/mid torque..
So im looking to achieve the same as the GReddy kit but 10x better!

Boost levels will be around 10-14psi

From what i have read, the GT3076R is a great turbo and capable of 400-450WHP around 14 PSI. However the GT(x)3071R also can hit those numbers.

My goal is to have 350-400WHP SMOOTH powerband, which would be an AWESOME increase over my old 270WHP setup.. but i do would like to have a BIT of room to grow and the GTX3071R seems to be the best choice since it SHOULD hit better numbers at the same PSI level as the GT3076R and with faster spool.. ( im guessing 500 rpm faster? )

What do you guys think?


I also have a berk 3"headerback which sounded very quiet with the greddy kit.. Im guessing an tial 44mm external wastegate WITH recirculation would make the exhaust alot louder right? Or can i best go with a dumptube?

Also loved the sound of the Greddy type-RS BOV... i don't read many good things about the TIAL Q BOV, seems a bit BIG.. Should i get the new Greddy RZ bov instead for < 16 psi ?

 

3076r is what I have for my pfab setup. 4k rpm onwards the car is a rocket. There's really no reason to get the 3071 at all. 3076r is the perfect street turbo from Garrett.

If you're buying the kit new get a GTX3076 series turbo. It's well worth the couple hundred dollars with slightly faster spool and much better power potential if you want to crank it up later.

 

I had a GT3076R before and currently have a GTX3071R. There is no down side to the new turbo except for cost.

 

Neither. Get the Borg Warner efr 7670.
But u have to go with Garrett get the gtx3576r.
Whatever u do dont go with precision.

 

Why would you go for a gtx35 on a street car ? Gtx3076 can support over 600hp. Why sacrifice spool and response for power levels that will never be used.

EFR7670 is unavailable, nobody has them in stock and the pfab stage 2 is made for an externally gated setup.

 

http://www.enginebasics.com/Advanced...20GTX3576R.htm

Also if bottom and spool is important. Make sure u go with a twinscroll setup

 

This is my GTX3071R. Tell me why you'd need a GTX3576R, please.

 

you can get the 7670 with a external gate set up, but i agree on its impossible to find them, shame too, so many people want these

 

I noticed a guy here who swapped his gt3076r to a gtx3076r. He actually lost 300rpm spooltime but gained 30whp.. Seems like the gtx version makes more power BUT at psi levels i NEVER gonna run (18+) the gtx3071r on the other hand seems to have more potential than the gt3076r?

I do plan to stick with garret

Thanks for the help so far!

 

Because most people must run pump/ 91 octane fuel and can only boost 11-13psi.