Hi Guys,

Takes a look at these new turbo from Garrett. They are capabale of producing up to 525hp from that 2.0L engine. Obviously this will require major upgrades to the intake, fuel supply and exhaust and I'm pretty sure internal parts as well.

http://www.autopartsprice.com/auto-p...071r-a-gt3076r-

 

Is been posted, but yeah i can't wait. 3076 for me in 2010

 

Already covered:

https://www.evolutionm.net/forums/ev...30r-turbo.html

 

I was looking for it. Thanks spdracerut

 

looks like the red will have some competition! In any event, this means good news for you X guys.

 

any word on which one is the best so far

 

It's all about the supporting mods with these 2 turbos. The HP figures they quote are general guidelines but based on previous dyno runs and recent gains over that mod level when looking at VDR graphs I'm sitting at around 550 crank HP. I don't think they are the BEST turbo setup in the world but they can be made to work decently.

 

Damn, you're getting that much flow out of the 76mm wheel? And you're on the compressor inlet elbow that comes with the turbo right? I bet there are some gains left by going to the ATP 3" inlet elbow with full 3" intake tubing. Not sure what that'll do to the compressor surge margin though.

 

I thought these were the turbo's everyone and their mother was having problems with. Most people lost power when they got these installed and tuned compared to the stock turbo.

 

There were also people that lost power installing something as simple as a 2-piece upper IC pipe CBRD made 370whp on his dyno in summer with a FMIC and catback exhaust. Maybe a test pipe... can't remember. Still had the stock O2 housing though which chokes a lot of flow.

 

the highest we made was 372whp, but torque was about 20-30 less than stock...

we've since made some big changes.... on our own stuff, and made power in the 370s (same mods) and torque +20-30 over stock

cb

 

I plan on replacing the inlet elbow leading to the turbo for certain, it may not hurt that much at low boost but when really trying to push this setup it is likely a major restriction past 27 psi. Peak power may not go up all that much past what I'm getting now but low to mid range should improve as I increase boost with cams and other intake mods.

The intake manifold I'm using showed a ~40 crank HP increase and I'll post a full report tonight. Other tweaks with the different O2 DP and Exhaust manifold gained some more low end torque and held boost a bit better in the mid range. Testing with better compressor outlet pipes and moving to a 75mm throttlebody with larger than 2.5" IC piping will also be done.

On the compressor surge issue I'm working with Gunzo on testing some tweaks on the Mivec tables to make them work as gear based maps instead of temp based maps. Currently there is only surge in 5th gear at around 3400 when going past 20 psi, but if I can have it switch to a Mivec map with very conservative mivec in the 3000-3500 range past 180% load it should reduce the surge quite a bit. Then gears 1st-4th I can use slightly more aggressive Mivec than I do now and possibly get even more spool back.

I'll have more details soon.

 

modifying the garrett supplied comp inlet can help alleviate some surge issues...

cb

 

I run 505 awhp with 460lbs. of torque

 

and you dont have a evo x so no one cares