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Old 05-10-2019, 07:10 AM   #1
Lancaster
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Default 3076 gen 2

2014 WRX full STI drivetrain

Tuned by Johnson Tuning
IAG stage 3 plus
D25 heads with GSC valves / beehive spring
Kelford 272 cams
625 head studs
ID1300
Walbro 525 Visconti hanger
I-wire fuel pump hardwire
Cobb rails with -6 feed / return
Garrett GTX3076r gen 2
BNM rotated hot parts
Cobb fmic

At this power the ID1300 were at 94% so power was pulled back to 585whp



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Last edited by Lancaster; 05-11-2019 at 09:03 PM.
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Old 05-10-2019, 09:34 AM   #2
Turpid Porpoise
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Those are pretty impressive numbers for a GTX3076. Which turbine housing were you using? Did you have to increase base fuel pressure so you didn't run out of injector to hit those numbers?
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Old 05-10-2019, 12:23 PM   #3
TDagen
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The first graph is the wrong one. That's the same one you posted in the 6266 thread.
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Old 05-10-2019, 12:36 PM   #4
Lancaster
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Quote:
Originally Posted by TDagen View Post
The first graph is the wrong one. That’s the same one you posted in the 6266 thread.


Lol damn your right ***129315;
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Old 05-10-2019, 12:38 PM   #5
Lancaster
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Quote:
Originally Posted by Turpid Porpoise View Post
Those are pretty impressive numbers for a GTX3076. Which turbine housing were you using? Did you have to increase base fuel pressure so you didn't run out of injector to hit those numbers?


Sorry first graph was the wrong one. 607 were the 3076 numbers . Using the Garrett .82 v-band
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Old 05-11-2019, 12:01 AM   #6
TDagen
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Quote:
Originally Posted by Lancaster View Post
Lol damn your right ***129315;
Lol! Do you have a graph for the 3076?

I like the photo with the turbo hanging out in the engine ready to inhale some serious air.
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Old 05-11-2019, 05:44 AM   #7
NSFW
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Was that 485whp on straight pump gas?

What RPM do you get full boost at?

I've been wondering about upgrading from my GT3076 to GTX3076 so I'm really curious about where the powerband starts with these turbos.
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Old 05-11-2019, 05:44 AM   #8
NSFW
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Was that 485whp on straight pump gas?

What RPM do you get full boost at?

I've been wondering about upgrading from my GT3076 to GTX3076 so I'm really curious about where the powerband starts with these turbos.
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Old 05-11-2019, 08:22 AM   #9
Scuby04STi
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Quote:
Originally Posted by NSFW View Post
Was that 485whp on straight pump gas?

What RPM do you get full boost at?

I've been wondering about upgrading from my GT3076 to GTX3076 so I'm really curious about where the powerband starts with these turbos.
Well keep in mind your gt is a 52lbs/min and the GTX is 64lbs/min so its a noticable size jump. But for refferance I see boost around 3800rpm-4k depending on things.

Op have you had a chance to take the car down the 1/4 mile? Curious about trap speeds seeing on mine was hitting those mid 90's idc's at the 500whp mark (stock base pressure) on a relatively similar set-up.
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Old 05-11-2019, 05:49 PM   #10
blurred
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Quote:
Originally Posted by NSFW View Post
Was that 485whp on straight pump gas?

What RPM do you get full boost at?

I've been wondering about upgrading from my GT3076 to GTX3076 so I'm really curious about where the powerband starts with these turbos.
Its exactly the same, my friend just upgraded only the turbo and tuned today, spool is basically identical on his setup.
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Old 05-11-2019, 09:00 PM   #11
Lancaster
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Default 3076 gen 2



That graph only shows the e85 pull but boost is coming in around 3800-4000rpm

Base pressure is set at 50psi or 50 at FP differential, I don’t currently recall pressures under load. Have not had a chance to play with the car sadly, to busy on customer cars.

The 485 pull was on 93, the 607 was on E60 as we did not drain the tank after the 93 runs.
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Old 05-11-2019, 09:11 PM   #12
TDagen
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Looks good!

The gen 2 30r really throws down compared to the old 30r.
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Old 05-14-2019, 09:22 AM   #13
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That is a boatload of power. What boost and/or timing are you running on E85?
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Old 05-14-2019, 10:08 AM   #14
CEEBEE
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That's some power from a 3076 and 1300cc injectors! Would be a weapon to drive with that fat torque curve! How much boost to make the 600?
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Old 05-14-2019, 11:23 PM   #15
2slofouru
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Very nice, even on 93. I have the G2 3576r with S2 cams and 2kcc injectors, and am hoping for similar numbers. Hopefully my spool isn't much later without avcs.
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Old 05-15-2019, 08:48 AM   #16
Lancaster
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Quote:
Originally Posted by CEEBEE View Post
That's some power from a 3076 and 1300cc injectors! Would be a weapon to drive with that fat torque curve! How much boost to make the 600?


29 lb on average, hits 30 here and there.
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Old 11-05-2020, 12:37 PM   #17
Karlot
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damn this looks like it would be a perfect setup for my car (trackcross/street/ sometimes autocross)

beautiful car man
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Old 11-07-2020, 04:19 PM   #18
NSFW
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Quote:
Originally Posted by Scuby04STi View Post
Well keep in mind your gt is a 52lbs/min and the GTX is 64lbs/min so its a noticable size jump. But for refferance I see boost around 3800rpm-4k depending on things.

Op have you had a chance to take the car down the 1/4 mile? Curious about trap speeds seeing on mine was hitting those mid 90's idc's at the 500whp mark (stock base pressure) on a relatively similar set-up.
I have been to a drag strip but the main takeaway was that I suck at it. Just barely missed a 12 second slip with a 13.01. I think my best trap speed was 110 but I wouldn't swear to that, it was ten years ago. Best 60-foot times were 1.8something, that part I remember clearly because it was my biggest goal at the time.

Full boost at 4k would be fine, that's what I get now. Part of me thinks that I should go smaller though, like a 3071, and try to get slightly better spool and slightly more power. I'm actually pretty content with the power I have now, and like you said the gtX3076gen2 is a pretty big jump.
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Old 11-08-2020, 09:16 AM   #19
Scuby04STi
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Quote:
Originally Posted by NSFW View Post
I have been to a drag strip but the main takeaway was that I suck at it. Just barely missed a 12 second slip with a 13.01. I think my best trap speed was 110 but I wouldn't swear to that, it was ten years ago. Best 60-foot times were 1.8something, that part I remember clearly because it was my biggest goal at the time.

Full boost at 4k would be fine, that's what I get now. Part of me thinks that I should go smaller though, like a 3071, and try to get slightly better spool and slightly more power. I'm actually pretty content with the power I have now, and like you said the gtX3076gen2 is a pretty big jump.
With the way all the gen 2 stuff has looked I would go with the 3071 also, I run a gen 1 3076 and the numbers line up closer to the gen 2 3071 and the gen 2 3076 seems to make an extra 100whp or so.

I was asking the OP about the drag strip seeing we have a very similar set-up but I have a gen 1 @26psi and that is a gen 2 pushing 29-30psi.

Dyno's are great but if you can get trap #s it seems to be a more helpful reference point. Imo
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