|
|
|
|
Thread Tools | Display Modes |
02-28-2010, 02:23 AM | #1 |
Scooby Specialist
Member#: 158888
Join Date: Sep 2007
Chapter/Region:
MAIC
Location: Baltimore area
Vehicle:2011 STi EFR 7163! 07 GT30 WRX sold :/ |
Spool for gt3076r around 325-350whp
So im going to be running stock drivetrain for an 07wrx and I have a perrin rotated 3076r with fmic etc etc...Im going to go really conservative(yes its cliche' term) with a goal of 325-350whp to prolong the life of the butter clutch that I have for now...How is this big turbo going to perform at that level? im assuming around 17psi or so right? how will torque be as well?
Thanks in advance, Chris
* Registered users of the site do not see these ads.
|
02-28-2010, 04:08 PM | #2 |
Scooby Specialist
Member#: 198053
Join Date: Dec 2008
Chapter/Region:
Tri-State
Location: CT
Vehicle:02 WRX Wagon www.efilogics.com |
find a turbo thats more efficient at your power goals.
|
02-28-2010, 06:47 PM | #3 |
Scooby Specialist
Member#: 160040
Join Date: Sep 2007
Chapter/Region:
AKIC
Location: Anchortown
Vehicle:2002 Bugi / 1993 L Symmetry Tuning |
id go with a 18g or 20g, or gt28, but a 30r is better for like 375-425, great turbo though.
|
02-28-2010, 07:17 PM | #4 |
Scooby Specialist
Member#: 108089
Join Date: Feb 2006
Chapter/Region:
MWSOC
Location: Minnesota
Vehicle:2003 WRX NF Performance |
Re: Spool for gt3076r around 325-350whp
You will be fine on the 30r and a conservative tune
|
03-01-2010, 03:08 AM | #5 |
Scooby Guru
Member#: 140444
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Near Seattle, WA
Vehicle:05 Stage Free LGT ATP 3076, 6MT, AVO FMIC |
You mean for the power goals he has for the near future, or the power goals he has for after he gets his clutch upgraded?
OP: I hit 15psi at around 3500 RPM with my ATP 3076. Your setup would probably behave similarly. I had my ATP 3076 limited to about 10psi for a few weeks after my stock clutch started slipping (it hit 10 at about 3200 rpm). That got me around 250 whp, pretty similar to my 'stage 2' setup but the power came on much later - power basically increased linearly from idle to redline. I'm basing the 250 figure on MAF, relative to the MAF and dynoed HP from my 'stage 2' setup. It only slipped around peak boost (which was 23psi) and 3rd gear or higher, so it probably could have held 18 or maybe 20 psi, but I wanted the car to be reliable until I got the clutch swapped. I'm guessing that 17psi would put you around 300-325 hp and tq. Also guessing based on MAF and some old logs. I still need to get my ATP dynoed. If you know that's the turbo you want in the end, I say go for it. Even at limited boost it will be a significant upgrade from stock. When you get your clutch upgraded, it'll be another significant upgrade. The only catch is that if you're not tuning it yourself you'll end up paying to get it tuned twice. If you don't make any changes between tunes (other than the clutch of course), maybe you can get your tuner to give you a discount since some of the work will already be done during the first tuning session. |
03-01-2010, 10:34 AM | #6 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
I was hitting 340whp at 16.5 psi on my 30r.
After the motor build (cams + 8.9 compression), I'm now hitting around 360whp at 15 psi. Just to give you an idea of the [very rough] mrp required for a given power level on the 30r. |
03-01-2010, 12:38 PM | #7 |
Scooby Specialist
Member#: 182092
Join Date: Jun 2008
Chapter/Region:
NWIC
Location: WA
Vehicle:99 Miata Green |
i have an 05 stock bottem end 30r .82 run it at 19 psi making 371hp and 350 tq. spooling around 4g's got 53k on the clock and still no clutch "factory" slip. i am running meth aswell and many other mods. one day all be rebuilding tell then vroom vroom. prersonally i love the bigger turbo on the highway you'll keep pulling.
|
03-01-2010, 12:57 PM | #8 | |
Scooby Specialist
Member#: 230988
Join Date: Nov 2009
Chapter/Region:
NWIC
Location: The compound
Vehicle:2006 WRX SGM |
Quote:
aren't they only good to like 300ish? |
|
03-01-2010, 06:28 PM | #9 |
Scooby Specialist
Member#: 136358
Join Date: Jan 2007
Chapter/Region:
NESIC
Location: Newington, CT
Vehicle:2006 WRX Limited 6mt/5x114/vf43/S204 |
Gears are very sensitive subject. I have since somebody break 3 gearset (all oem) at stock power levels(had catback and intake only). At the sametime I have seen people go 30k+miles with 350wtrq np. So it is all on the drivers. I would say though over 300wtqr your starting to be on that more things might happen side though, again not something I proved just looking at billions of threads here about it.
|
03-02-2010, 12:36 AM | #10 |
Scooby Newbie
Member#: 216043
Join Date: Jul 2009
Chapter/Region:
W. Canada
Vehicle:05 Legacy STi Steel Blue |
You're going to need a better clutch. need for speed is going to be hitting as hard as that turbo. I"m running an exedy twin plate. I can't say how your turbo is going to spool but my 3076r twin scroll is passing thru 1.5 bar at 3200 rpm. That turbo is going to be barely working at 17 psi. Buy something smaller if you want to run a stock clutch. Or wait till u can afford the turbo and the clutch.
|
03-02-2010, 01:48 AM | #11 | |
Scooby Specialist
Member#: 202146
Join Date: Feb 2009
Chapter/Region:
SCIC
Location: My Island
Vehicle:2018 Crosstrek Crystal White |
Re: Spool for gt3076r around 325-350whp
Quote:
|
|
03-02-2010, 07:24 AM | #12 |
Scooby Specialist
Member#: 136358
Join Date: Jan 2007
Chapter/Region:
NESIC
Location: Newington, CT
Vehicle:2006 WRX Limited 6mt/5x114/vf43/S204 |
The problem with getting a new clutch on a stock tranny is your going to cause more shock and stress to the gears, having a better chance to fail. The slipping the stock clutch is what saves a lot of people from breaking the gears. So this is a catch 22 here. One hand you get a better clutch to help you put the power down at the cost of possibly breaking your gears or you keep your stock clutch causing some slip at times but saving your gears.
Otherwords if you want to put power down as your first mods that is fine but your going to have to do drivetrain at some point or another, you can't just push the tranny to the side, cover your ears and say lalalalala all the time cause at some point or another your going to break them. As somebody mentioned if you have PPG lined up thats the wrong approach. Find a gearset or tranny that suits you. PPG and sti transmission is not for everybody. Might it work for you sure, but it doesn't meet everybody needs 100% of time. That is a whole another huge story and I would tell you to start reading threads now on that. But answer to your question is if you want 325-350whp a vf turbo or 16/18g may get what your looking for better. gt30 is a turbo that will put around 375-400 more at the cost of a little more lag then those other turbos.gt30 will be hard on your stock gears and not to mention gt30 might be hard on some internal parts of engine. Things like ringlands if not tuned 100%. These are all side things you need to consider and have saved up for incase. You can't just pick a turbo, put it on and not have things to support it. |
03-02-2010, 01:11 PM | #13 |
Scooby Guru
Member#: 140444
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Near Seattle, WA
Vehicle:05 Stage Free LGT ATP 3076, 6MT, AVO FMIC |
Am I the only one who read the OPs post and figured out that he is going to upgrade his clutch later?
What is the deal with all these recommendations for smaller turbos? Do you guys figure it's better to upgrade the turbo twice? That's a waste of time and money. You can put parts on in any order, as long as you are aware of the limiting factors. And the OP obviously is, or he wouldn't have started this thread. |
03-02-2010, 01:54 PM | #14 | |
Scooby Specialist
Member#: 136358
Join Date: Jan 2007
Chapter/Region:
NESIC
Location: Newington, CT
Vehicle:2006 WRX Limited 6mt/5x114/vf43/S204 |
Quote:
|
|
03-02-2010, 01:57 PM | #15 | |
Scooby Specialist
Member#: 202146
Join Date: Feb 2009
Chapter/Region:
SCIC
Location: My Island
Vehicle:2018 Crosstrek Crystal White |
Re: Spool for gt3076r around 325-350whp
Quote:
|
|
03-03-2010, 12:22 AM | #16 | |
Scooby Guru
Member#: 140444
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Near Seattle, WA
Vehicle:05 Stage Free LGT ATP 3076, 6MT, AVO FMIC |
Quote:
|
|
03-03-2010, 08:05 AM | #17 |
Scooby Specialist
Member#: 136358
Join Date: Jan 2007
Chapter/Region:
NESIC
Location: Newington, CT
Vehicle:2006 WRX Limited 6mt/5x114/vf43/S204 |
|
03-03-2010, 10:25 AM | #18 |
Scooby Guru
Member#: 140444
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Near Seattle, WA
Vehicle:05 Stage Free LGT ATP 3076, 6MT, AVO FMIC |
|
03-03-2010, 09:16 PM | #19 |
Scooby Specialist
Member#: 198053
Join Date: Dec 2008
Chapter/Region:
Tri-State
Location: CT
Vehicle:02 WRX Wagon www.efilogics.com |
at 17psi it would give you a pressure ratio ~2.15 so if you plot if on your map with your airflow ~33-40 lbs/min you will see that you can get a turbo that is more efficient at your power goals and not getting near the choke limit. im just sayin |
03-03-2010, 09:56 PM | #20 |
Scooby Specialist
Member#: 65623
Join Date: Jul 2004
Chapter/Region:
SCIC
Location: Walnut,CA
Vehicle:2005 05 Varis WRX 95 LS400 |
GT3071 would be better choice
|
03-05-2010, 08:46 AM | #21 | ||||||
Scooby Specialist
Member#: 158888
Join Date: Sep 2007
Chapter/Region:
MAIC
Location: Baltimore area
Vehicle:2011 STi EFR 7163! 07 GT30 WRX sold :/ |
I want to thank everyone for responding..I appreciate all comments even those stating to get a smaller turbo, but I want to be around 400whp in the future, but for now I am looking for 325-350 give or take...
Quote:
Quote:
Quote:
Quote:
But I understand why your rec. a smaller turbo, just note that I have the big snail with all supporting mods sitting in my living room waiting for a sunny couple days... Quote:
Quote:
Im new to maps but at 17psi with what you mentioned...I should have efficiency rating of about 78%? or do I not follow that line where 78% is down to where my settings will be? I understand if you dont want to clarify that for me and there are threads on maps, but seems like turbo will perform pretty well but not 100% at 325-350whp range? Thank you for that Last edited by Obababoy; 03-05-2010 at 08:52 AM. Reason: we all make mistakes.. |
||||||
03-05-2010, 10:45 AM | #22 | |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Quote:
Here is the dyno, on spoolup the boost spiked to about 22 psi, then plummeted to about 15. By 6000 RPM it was back at ~16.5 psi. http://www.thesuicidaleggroll.com/ho....2008_dyno.jpg Last edited by the suicidal eggroll; 03-05-2010 at 10:54 AM. |
|
03-05-2010, 11:29 AM | #23 | |
Scooby Specialist
Member#: 158888
Join Date: Sep 2007
Chapter/Region:
MAIC
Location: Baltimore area
Vehicle:2011 STi EFR 7163! 07 GT30 WRX sold :/ |
Quote:
|
|
03-05-2010, 11:34 AM | #24 |
Scooby Guru
Member#: 140444
Join Date: Feb 2007
Chapter/Region:
NWIC
Location: Near Seattle, WA
Vehicle:05 Stage Free LGT ATP 3076, 6MT, AVO FMIC |
|
03-06-2010, 12:57 PM | #25 |
Scooby Specialist
Member#: 158888
Join Date: Sep 2007
Chapter/Region:
MAIC
Location: Baltimore area
Vehicle:2011 STi EFR 7163! 07 GT30 WRX sold :/ |
NSFW: So my setup does not use the blow through maf but it does have a big maf extension piece for the cold air intake that goes right in front of filter..I did get a 50/50 txs bov, but i pretty much need to have sensor closer to intake manifold in order for that to not cause drivability issues between shifts...with that said, since im not going over 20psi for now, will the stock bpv be sufficient?
Also the SS oil inlet line for turbo does not have the banjo fitting to mate up to my WRX(I bought perrin's kit) Perrin charges like 70bucks for this little line...can I just buy the banjo thing at an autoparts store or somewhere cheaper? if so what am I looking for Anyone else feel free to chime in... |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
WTT GT3582R for GT3076R | bkk6284 | MWSOC Private Classifieds | 13 | 10-02-2009 07:14 PM |
WTT GT3582R for GT3076R | bkk6284 | Engine/Power/Exhaust | 14 | 10-02-2009 07:14 PM |
Gaskets for Gt3076r | Subiemaddness | Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) | 1 | 02-18-2008 11:10 PM |
AZ: 03 WRX for sale, 2.5L - 350whp | DubuRX | Private Vehicle 'For Sale' Classifieds | 11 | 05-08-2005 05:42 AM |
What front mount for a green making 350whp on my STI | whiteguyblacksti | Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) | 16 | 05-11-2004 11:24 AM |