|
|
|
|
Thread Tools | Display Modes |
04-21-2016, 08:43 AM | #26 |
Scooby Guru
Member#: 261612
Join Date: Oct 2010
Location: Minneapolis, MN
Vehicle:2002 WRX - 750WHP 9.5s @ 150mph |
|
04-21-2016, 09:01 AM | #27 |
Scooby Specialist
Member#: 280693
Join Date: Apr 2011
Location: Ohio
Vehicle:15' Launch Edition WRB on Gold BBS |
sent you a pm pet3r
|
04-21-2016, 09:50 AM | #28 |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
|
04-21-2016, 09:52 AM | #29 |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
|
04-28-2016, 11:43 AM | #30 |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
Anyone think its worth upgrading valve springs? I keep thinking about it, which means in the end i'll likely end up doing it, ha.
But, if I'm running a "small" turbo, its not going to rev super high anyway. I think it will hold power to redline, but I'm not looking to rev super high anyway. Are springs more of a safety precaution though? |
04-28-2016, 12:36 PM | #31 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
If you aren't touching the heads then I would not do anything to them
|
04-28-2016, 08:37 PM | #32 | |
Scooby Newbie
Member#: 362723
Join Date: Jul 2013
Chapter/Region:
E. Canada
Location: Land of the Igloos
Vehicle:2002 WRX w/ V7 EJ207 WRB |
Quote:
That's not necessarily true, If the setup has been built for the smaller turbo you can spin them quite high. There's a local 06 STI build that's running a gtx2867r in a stock location that holds a flat torque curve all the way to 7k and the turbo is not the limiting factor rpm wise. My V7 ej207 and it's stock VF30 runs all the way out to 7k, lets not forget all the Hondas running a gtx3071r spinning to 9500rpm with flat torque curves. If you're choking the turbo at 6k rpm something is wrong. Either the housing is too small, you're post turbo exhaust is too restrictive either size wise or the bends are too sharp after the turbo, intake is too restrictive, etc....or it could be the tuner is afraid of rpm, which sadly is the case most of the time in the Subaru world. There's only 1 local builder/tuner to me that I've ever seen build setups and tune them with flat torque curves on Subarus, one is a rotated 30r setup and the other is that gtx2867r in a stock location. If built and tuned right the size of the turbo should only limit your power potential, not your rpm....to a point. Last edited by Nick411; 04-28-2016 at 09:14 PM. |
|
04-30-2016, 12:47 AM | #33 | |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
Quote:
What I mean by "no advantage revving out past 6k rpm anyway" is that this turbo is documented to start dropping power after 6krpm, both HP and torque, above 500whp. Thats the target power goals. If it was 400whp on 93, then it would probably hold fine, but it doesn't sustain in the higher rev range. |
|
04-30-2016, 12:48 AM | #34 |
Scooby Specialist
Member#: 135429
Join Date: Dec 2006
Chapter/Region:
NWIC
Location: Lake Stevens WA
Vehicle:'05 Cornfed CGM STi 94 Legacy SS |
pet3r's EFR7163 EWG, IAG closed deck, TMIC build
My heads were machined for 1/2 in studs along with my case, I ended up using 625's on the new case with the 1/2 machined heads.
Last edited by Joshwrx04; 06-07-2016 at 06:22 PM. |
05-04-2016, 07:32 PM | #35 |
Scooby Newbie
Member#: 242784
Join Date: Mar 2010
Chapter/Region:
SWIC
Vehicle:2008 Subaru STI WRB |
Another pet3r build?! Yes please! I loved your hatch and definitely look forward to this! Gave me some ideas to do to mine! Glad you're back!
|
05-07-2016, 04:12 PM | #36 |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
All the parts except the block and exhaust are in. Need to take some pics of it all
Surprised at how small the EFR turbo really looks. I swear the gtx3076 housing was much larger. Excited for the full vband setup! |
05-08-2016, 03:36 AM | #37 |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
|
06-06-2016, 01:40 PM | #38 |
Scooby Specialist
Member#: 232458
Join Date: Dec 2009
Chapter/Region:
SWIC
Location: Las Cruces/El Paso
Vehicle:2005 & 2008 STi Cobb 20g & EFR 7670 |
Heck ya. Will follow this closely. Loved your last car! Ron really did a great job tuning it as well
|
06-06-2016, 01:48 PM | #39 |
Scooby Specialist
Member#: 265430
Join Date: Nov 2010
Chapter/Region:
MWSOC
Location: Cleveland
Vehicle:2005 OBP WRX STi IG/FB - seriousblacksti |
Nice parts and nice shots, this car is going to be fun to drive!
|
06-06-2016, 05:58 PM | #40 |
Scooby Guru
Member#: 15822
Join Date: Feb 2002
Location: TOPOHTO
Vehicle:1999 WRB GM6 2.34 LR destroker |
sub'ed
I got a TS 7163 laying in the garage waiting for the new motor, will also be using TMIC (ETS) is that a T3 turbo blanket you used? |
11-20-2016, 01:28 AM | #41 |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
Here are some numbers.
In all honesty, there was a lot of hype for this turbo. I can't say it lived up to it. Sure it has some decent response, but nothing that was so startling to me. Based on reports and dyno plots, others were raving about how responsive this turbo is. I'm not convinced, but its still fun! It definitely pulls hard all the way to redline. |
11-20-2016, 07:52 AM | #42 |
Scooby Specialist
Member#: 348177
Join Date: Feb 2013
Chapter/Region:
TXIC
Location: TX
Vehicle:2002 Bugeye Haltech GTX3584RS |
I looked at all the dyno plots when it came out and got flamed for saying it looks like a 2.5xtr but with way more hastle (they were having spring issues and were being finicky).
Looks like a good driver setup. |
11-20-2016, 10:56 AM | #43 |
Scooby Guru
Member#: 56203
Join Date: Feb 2004
Chapter/Region:
Tri-State
Location: south nj
Vehicle:00 RSTI Coupe Twin Scroll 2.5XTR EJ207 |
So comparing this graph with your gtx3076, the EFR spools slower and makes less power everywhere? Is there something I'm missing that contributes to that??
Do you have a graph with both turbos on it? How's boost recovery on shifts between the 2? |
11-20-2016, 02:38 PM | #44 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
JJ has always been unimpressed.jpg with EFR turbos
|
11-20-2016, 03:04 PM | #45 |
Scooby Specialist
Member#: 348177
Join Date: Feb 2013
Chapter/Region:
TXIC
Location: TX
Vehicle:2002 Bugeye Haltech GTX3584RS |
Last edited by ALOKIN; 11-20-2016 at 03:42 PM. |
11-20-2016, 03:51 PM | #46 |
Scooby Specialist
Member#: 255736
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Cincinnati
Vehicle:2004 STi JavaBlackPearl |
I'm making 100 more hp than you on a gtx3076r at 27psi. I'm glad I didnt go with the efr as I was thinking about the one you have.
|
11-20-2016, 06:53 PM | #47 | |
Scooby Specialist
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:2015 STi LE EFR7163 500whp/550wtq |
Quote:
Here is my previous build, compared to the current EFR. Blue line is the EFR, green is the gtx3076. Builds are somewhat comparable, but biggest differences: Spearco TMIC on the 08, no valve springs on the 08, not the same engine build specs on the 08, and I was running MAF tune on the 08, and stock fuel system on 08. Both had stock catback though. I went with the EFR this time around based on previous reviews. I didn't need 550whp if I would gain about 500rpm of better early response. Since I got neither, it was a bit disappointing. |
|
11-20-2016, 08:18 PM | #48 |
Scooby Specialist
Member#: 57064
Join Date: Mar 2004
Vehicle:2008 STi IAG built HTA86 E85 Kel272s Cos IM |
|
11-21-2016, 12:07 PM | #49 |
Scooby Specialist
Member#: 348177
Join Date: Feb 2013
Chapter/Region:
TXIC
Location: TX
Vehicle:2002 Bugeye Haltech GTX3584RS |
|
11-27-2016, 03:40 PM | #50 |
Scooby Specialist
Member#: 81659
Join Date: Feb 2005
Chapter/Region:
NWIC
Location: Snoqualmie
Vehicle:2006 STI / 2010 FXT Aspen White / Silver |
|
Thread Tools | |
Display Modes | |
|
|