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05-11-2021, 03:52 PM | #26 | |
Scooby Specialist
Member#: 395793
Join Date: Jul 2014
Chapter/Region:
Tri-State
Location: SLC and Lake Placid
Vehicle:2005 92x Aero Beige |
Quote:
Through my research and discussions with Killer B, the G series turbos are not that much better than the Gen 2 GTX turbos. The one advantage they have in a better IWG design. Their biggest down side is they have a tendency to have issues with shaft speed and require a speed sensor when pushing them hard. For this reason it seems the GTX are better overall as they spool fast and don't have spinning too fast. If you want an IWG the EFR turbos might be your best bet and have a built in port for a speed sensor.
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05-11-2021, 03:54 PM | #27 |
Scooby Specialist
Member#: 179775
Join Date: May 2008
Chapter/Region:
South East
Location: Huntersville, NC
Vehicle:03 WRX/15 FXT 14 BRZ/ 92 SVX |
Motion Lab closed doors a couple years ago after getting into some legal troubles and shady business practices. If you search, I'm sure the details are still out there somewhere.
I did a double take when I saw their name get bumped up in the recent threads |
05-11-2021, 05:48 PM | #28 | |
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region:
NWIC
Location: Greater Seattle Area
Vehicle:Link G4X flex tuned 02' EJ205 20G 6MT wagon |
Quote:
And snowbound is pretty much exactly right about the G Series. There was a lot of hype surrounding it and they are pretty great. But there are some genuine drawbacks when it is compared directly to the GTX Gen 2 Series. But you really can't beat the EFR turbos if you are wanting to say internally gated. Go ahead and pm if you have more questions Last edited by K3rm1tth3fr0g; 05-11-2021 at 06:38 PM. |
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05-12-2021, 08:22 AM | #29 | ||
Scooby Newbie
Member#: 339923
Join Date: Dec 2012
Location: Virginia
Vehicle:2006 Impreza WRX STi grey |
Quote:
yeah i have seen alot of the efr's not carry as much up top without adding extra stuff. so i'm hesitant on those. i like garrett for the reliability they seem to provide under alot of abuse, which i definitely plan on doing lol. it's hard to find alot about the g series, but i'm leaning more and more towards the gtx gen2 lineup. just have to decide if the 3071 is enough or if i should jump to the 3576. hence all the research. Quote:
i'll shoot you a pm shortly. |
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05-12-2021, 01:14 PM | #30 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
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05-12-2021, 02:37 PM | #31 | |
Scooby Newbie
Member#: 339923
Join Date: Dec 2012
Location: Virginia
Vehicle:2006 Impreza WRX STi grey |
Quote:
i remember talking to you about your setup. initially i wanted the 3076 but now i cant decide if i should go bigger or BIGGER lol. coming from a 20g. the 71 will likely hit my goals and spool faster. but that extra power of the 3576 is just something i cant ignore. which is why the decision is so dang tough |
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05-12-2021, 03:48 PM | #32 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
I recently got a chance to drive a car with the gen 2 3576 and it was a let down to my gen 1 3076 when looking at control at part throttle and transient response. When it hit the powerband it was clear there is a large leap in overall power but it was not as smooth or enjoyable overall. But lets be honest, there are way to many factors with the cars I am comparing. Good example being one weighs like 3600lbs and mine is at 2800lbs. lol |
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05-12-2021, 03:56 PM | #33 |
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Join Date: Mar 2003
Chapter/Region:
MAIC
Location: Milton Keynes, UK
Vehicle:96 3MI Racing search FIRST, then PM!!! |
Beat me to it
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05-12-2021, 06:01 PM | #34 | |
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region:
NWIC
Location: Greater Seattle Area
Vehicle:Link G4X flex tuned 02' EJ205 20G 6MT wagon |
Quote:
And was it on flex fuel? The way I understand it, with all else being equal, the transient response between the 3071 and 3576 are very similar if you are past the boost threshold and everything is configured correctly. Albeit that threshold may be a few hundred PM later in the powerband vs the GT30. |
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05-13-2021, 09:52 AM | #35 |
Scooby Newbie
Member#: 339923
Join Date: Dec 2012
Location: Virginia
Vehicle:2006 Impreza WRX STi grey |
^^^
i too am curious. |
05-13-2021, 12:51 PM | #36 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
I know my set-up is generally more efficient then the car with the 3576 but mine is also more focused on high rpm power (272 cams, oversized valves, 75mmTB with 3" coldside pipe and 2.5" hot side pipe). I also have single AVCS and the other car was duel AVCS. The way I see it is the difference in spool and transient response are close enough that most wouldn't really notice enough difference to leave 100whp or so on the table. I get that. They are similar, but not the same in transient response. But a gen2 3071 can make mid 500's at a reasonable boost level, so if that's the goal it's a waist to go bigger IMO. |
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05-13-2021, 01:06 PM | #37 | |
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region:
NWIC
Location: Greater Seattle Area
Vehicle:Link G4X flex tuned 02' EJ205 20G 6MT wagon |
Quote:
This is my thought process. Both options are good. The 3576 will just allow the head to be built down the line for more power with almost the same response. Last edited by K3rm1tth3fr0g; 05-13-2021 at 01:17 PM. |
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05-14-2021, 06:07 PM | #38 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
Don't get me wrong I LOVE going fast, I just have my opinions on the stopping point with a 2.5L that still falls under the DD category. Others might have a different view and that's A-ok. |
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05-17-2021, 03:09 AM | #39 | |
Scooby Newbie
Member#: 366241
Join Date: Aug 2013
Chapter/Region:
South East
Location: broward county, Florida
Vehicle:2009 09 wrx delivery Dgm |
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05-17-2021, 12:43 PM | #40 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
Quote:
We all have our preference, the people that get hung up on everyone needing to like what they do are always going to be annoyed. I just try to help give a prospective then let people do what they want and be happy. LOL |
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05-17-2021, 01:04 PM | #41 | |
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region:
NWIC
Location: Greater Seattle Area
Vehicle:Link G4X flex tuned 02' EJ205 20G 6MT wagon |
Quote:
There are lots of folks who haven't gone insane with their builds and still have stockish brakes but still make 500+. The trick is to not overdrive the car beyond its limits as is hopefully obvious. |
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05-17-2021, 02:29 PM | #42 | |
Scooby Specialist
Member#: 328635
Join Date: Aug 2012
Chapter/Region:
NWIC
Location: Portland*
Vehicle:2004 STi GTX3076R Rally Blue |
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