Welcome to the North American Subaru Impreza Owners Club Friday March 29, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Proven Power Bragging

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Closed Thread
 
Thread Tools Display Modes
Old 10-17-2020, 06:34 PM   #951
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Quote:
Originally Posted by AuthenticAMD View Post
Is the stock turbo run also on e85?
Yes

Quote:
Originally Posted by junebugfareast View Post
Where are the recent dyno plots? Asking for a friend.
From post 940...

Quote:
Originally Posted by KillerBMotorsport View Post
Recent testing comparison...

Stock VF vs GTX3071 Gen2 vs GTX3576 Gen 2

Pretty obvious why we are big fans of the 3576 on the EJ25.

* Registered users of the site do not see these ads.
KillerBMotorsport is offline  
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-17-2020, 07:30 PM   #952
junebugfareast
Scooby Newbie
 
Member#: 167468
Join Date: Dec 2007
Chapter/Region: TXIC
Location: H-Town
Vehicle:
2004 STI
White-ish

Default

Thanks. They show up in Chrome, but not Firefox, on my Linux machine.
junebugfareast is offline  
Old 10-24-2020, 12:33 PM   #953
vicious_fishes
Scooby Guru
 
Member#: 158864
Join Date: Sep 2007
Location: Aussieland
Vehicle:
2003 SOHC destroker

Default

Still trying to work out how everything is spooling at the exact same time
vicious_fishes is offline  
Old 10-25-2020, 04:34 AM   #954
wrxchitown
Scooby Newbie
 
Member#: 185520
Join Date: Jul 2008
Chapter/Region: SCIC
Location: San Diego, CA
Vehicle:
2015 Sti launch
Blue

Default

I'm guessing the reason for the comparable spool is because the VF is on pump and the other turbos are e85. Now the 35 spooling at the same time as the 30 must just be some sort of magic. Lol.
wrxchitown is offline  
Old 11-01-2020, 10:07 PM   #955
NSFW
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

Default

Were all three of those pulls done in the same gear?
NSFW is offline  
Old 11-02-2020, 07:42 AM   #956
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Quote:
Originally Posted by NSFW View Post
Were all three of those pulls done in the same gear?
Yes, 4th gear.
KillerBMotorsport is offline  
Old 11-02-2020, 09:42 AM   #957
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Some pics of the upcoming V2 adapter. Makes install a lot easier.







KillerBMotorsport is offline  
Old 12-04-2020, 02:51 PM   #958
K3rm1tth3fr0g
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

Default

Any update on G series spoolinator? I may have missed it somewhere, my apologies if I did
K3rm1tth3fr0g is offline  
Old 12-04-2020, 03:44 PM   #959
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Any update on G series spoolinator? I may have missed it somewhere, my apologies if I did
Still waiting on Garrett :/
KillerBMotorsport is offline  
Old 12-04-2020, 05:03 PM   #960
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by KillerBMotorsport View Post
Still waiting on Garrett :/

Unfortunate. I may honestly wait to pick a turbo until its released based on how good they look. Do you guys imagine it will be ready in the next 18 months?
K3rm1tth3fr0g is offline  
Old 12-04-2020, 05:40 PM   #961
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Unfortunate. I may honestly wait to pick a turbo until its released based on how good they look. Do you guys imagine it will be ready in the next 18 months?
I really can't say. Last time I heard 6 months is was almost 2 years

On a side note, the recent testing shows the Gen 2 GTX turbos still perform exceptionally well, and why I really think the 3576 is THE best matched 'street' turbo for these engines...

Keep in mind our MD500SE reads very low, even for a Mustang. This would be well over 500whp on a DynoJet.

KillerBMotorsport is offline  
Old 12-04-2020, 07:50 PM   #962
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by KillerBMotorsport View Post
I really can't say. Last time I heard 6 months is was almost 2 years

On a side note, the recent testing shows the Gen 2 GTX turbos still perform exceptionally well, and why I really think the 3576 is THE best matched 'street' turbo for these engines...

Keep in mind our MD500SE reads very low, even for a Mustang. This would be well over 500whp on a DynoJet.


Makes sense, thank you.


I just bought some coated holy headers without an EWG bung and I was curious if I decided to go for the EWG upgrade service to be able to run the spoolinator with an ewg, would you guys have to completely strip the up pipe coating in order to weld, or just grind off enough to weld on the bung, leaving the majority of the coating?

Last edited by K3rm1tth3fr0g; 12-04-2020 at 08:00 PM.
K3rm1tth3fr0g is offline  
Old 12-05-2020, 09:34 AM   #963
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
I just bought some coated holy headers without an EWG bung and I was curious if I decided to go for the EWG upgrade service to be able to run the spoolinator with an ewg, would you guys have to completely strip the up pipe coating in order to weld, or just grind off enough to weld on the bung, leaving the majority of the coating?
We've done it before, but I don't like to. It costs a bit more because the coating is pretty tricky to remove, and it really should be recoated after, but recoating an area never looks as good. Ideally, the up-pipe is just replaced with an EWG version that can be coated in its entirety or left bare.
KillerBMotorsport is offline  
Old 12-05-2020, 10:03 AM   #964
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by KillerBMotorsport View Post
We've done it before, but I don't like to. It costs a bit more because the coating is pretty tricky to remove, and it really should be recoated after, but recoating an area never looks as good. Ideally, the up-pipe is just replaced with an EWG version that can be coated in its entirety or left bare.
That's unfortunate but makes sense. Wish I opted for the EWG version off the bat. Arg.

How would I go about getting a new coated EWG up pipe without sending mine in? I don't see anywhere to buy just the v band up pipe online

Would I be able to ship you my up pipe (hasn't been used yet), and send yall some money and have you guys just do a trade? If not I understand but I'm thinking that may be easiest way. I already have the wastegate, just had my tuner order the IWG version of the header without thinking.

Last edited by K3rm1tth3fr0g; 12-05-2020 at 11:13 AM.
K3rm1tth3fr0g is offline  
Old 12-25-2020, 10:10 PM   #965
countriccati
Scooby Newbie
 
Member#: 402987
Join Date: Oct 2014
Chapter/Region: NESIC
Location: Boston
Vehicle:
2006 Saabaru
PSM

Default

Sharing results on my 3576 Gen 2 setup (and it's for sale!) https://forums.nasioc.com/forums/sho....php?t=2931275
countriccati is offline  
Old 12-26-2020, 01:10 AM   #966
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by countriccati View Post
Sharing results on my 3576 Gen 2 setup (and it's for sale!) https://forums.nasioc.com/forums/sho....php?t=2931275
Pmd u
K3rm1tth3fr0g is offline  
Old 01-06-2021, 05:30 PM   #967
K3rm1tth3fr0g
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

Default

Would a 3576 be way too big for a 2.14L stroker setup aimed at a high red-line goal?

Aiming to spool before 4.5k.

(Outfront motorsport closed deck 2.14 stroker shortblock w/ EJ207 Spec C big port heads)
K3rm1tth3fr0g is offline  
Old 01-07-2021, 08:02 AM   #968
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Would a 3576 be way too big for a 2.14L stroker setup aimed at a high red-line goal?

Aiming to spool before 4.5k.

(Outfront motorsport closed deck 2.14 stroker shortblock w/ EJ207 Spec C big port heads)
I like to say this is a careful what you wish for request. We get this a lot. While improvements in VE increase a power bands width (and ultimate power), you don't want to do it to a detriment of where an engine naturally makes its power.

I would recommend picking a powerband range that's more reasonable, like 3,500 to 6,500, or 4,500 to 7,500, or with a high RPM stoker it might be 7,000 to 10,000 RPM. So you pick your rev range, and anything beyond that is gravy. In fact, if you do it well, the powerband WILL be bigger than 3,000 RPMs. In you build a high flowing 10,000 RPM engine and and surround it with components to support low RPM response, you will be very disappointed with your results. As an example, the most common of these errors is big cams, ported heads, etc. to support super high RPMs with a TMIC, medium sized turbo and small turbine A/R, in the hope of getting the 'best of both worlds'.

The 3576 will support that rev range on that displacement, but I would recommend the largest sized turbine. It won't be as unresponsive as you think, the big turbine actually give is somewhat of an N/A feel, but the spool/power won't come on until you're deeper into the revs. I don't want to speculate, because I don't know the details of your build, and there are many that will affect the results.
KillerBMotorsport is offline  
Old 01-07-2021, 09:14 AM   #969
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by KillerBMotorsport View Post
I like to say this is a careful what you wish for request. We get this a lot. While improvements in VE increase a power bands width (and ultimate power), you don't want to do it to a detriment of where an engine naturally makes its power.

I would recommend picking a powerband range that's more reasonable, like 3,500 to 6,500, or 4,500 to 7,500, or with a high RPM stoker it might be 7,000 to 10,000 RPM. So you pick your rev range, and anything beyond that is gravy. In fact, if you do it well, the powerband WILL be bigger than 3,000 RPMs. In you build a high flowing 10,000 RPM engine and and surround it with components to support low RPM response, you will be very disappointed with your results. As an example, the most common of these errors is big cams, ported heads, etc. to support super high RPMs with a TMIC, medium sized turbo and small turbine A/R, in the hope of getting the 'best of both worlds'.

The 3576 will support that rev range on that displacement, but I would recommend the largest sized turbine. It won't be as unresponsive as you think, the big turbine actually give is somewhat of an N/A feel, but the spool/power won't come on until you're deeper into the revs. I don't want to speculate, because I don't know the details of your build, and there are many that will affect the results.

Well I picked up the turbo (was used for a great deal) before I actually have the built block so It's going to be sitting for a while while I decide if a hybrid or perhaps a destroked motor makes more sense. However I really like the ideal of a high revving 2.0 based stroker build but since I already have this turbo setup I want to go with an engine build that makes sense for the turbo I'll be running so I have that to consider when picking the rest of the parts.

Do you think in a 2.1 stroker, if the powerband started around 4.5-5k, it would pull hard to 8.5K, or would the current .82 A/R choke it out above 8k?

I only have the turbo purchased right now and want to plan my build accordingly, my tuner is just on vacation.


Thanks!

Last edited by K3rm1tth3fr0g; 01-07-2021 at 11:11 AM.
K3rm1tth3fr0g is offline  
Old 01-07-2021, 12:13 PM   #970
subaru_gc8
Scooby Specialist
 
Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Well I picked up the turbo (was used for a great deal) before I actually have the built block so It's going to be sitting for a while while I decide if a hybrid or perhaps a destroked motor makes more sense. However I really like the ideal of a high revving 2.0 based stroker build but since I already have this turbo setup I want to go with an engine build that makes sense for the turbo I'll be running so I have that to consider when picking the rest of the parts.

Do you think in a 2.1 stroker, if the powerband started around 4.5-5k, it would pull hard to 8.5K, or would the current .82 A/R choke it out above 8k?

I only have the turbo purchased right now and want to plan my build accordingly, my tuner is just on vacation.


Thanks!
I would think that you will have plenty of top end power, but what klller bee is saying is you have to figure out where you want your power band to be. if you want it higher in the power band then you go to the bigger ar. honestly though, the differences in the ar isnt going to be huge. we are talkin glike making 20hp or so the power is will going to be how big the turbo is. the ar is more like fine tuning.
on a 2.1 my 3067 makes its power from 4000- 8000 and that is with a .82ar housing. I did buy a .63ar as well but the spool characteristics werent that different between the 2, but on the top end it did make another 20ish hp.
subaru_gc8 is offline  
Old 01-07-2021, 12:41 PM   #971
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by subaru_gc8 View Post
I would think that you will have plenty of top end power, but what klller bee is saying is you have to figure out where you want your power band to be. if you want it higher in the power band then you go to the bigger ar. honestly though, the differences in the ar isnt going to be huge. we are talkin glike making 20hp or so the power is will going to be how big the turbo is. the ar is more like fine tuning.
on a 2.1 my 3067 makes its power from 4000- 8000 and that is with a .82ar housing. I did buy a .63ar as well but the spool characteristics weren't that different between the 2, but on the top end it did make another 20ish hp.

Yeah that makes sense, I am committed to a power band that is high in the rev range, say 5000/5500-9000. So you think replacing the .82 housing with a larger AR for that rev range would be beneficial to not lose power at higher RPM? (Obviously I will be discussing all of these finer points directly with my tuner, I just want some preliminary advice)


.82 seems like a solid compromise between spooling relatively fast for its size and displacement (4.5-5k), and not choking out up top like a .63 seems like it would.


And based on what you said about your stroker setup, doesn't that indicate I should stick with a .82 A/R if I want to rev past 8K and spool isnt really an issue? Just clarifying.

Thanks for explaining everyone!

Last edited by K3rm1tth3fr0g; 01-07-2021 at 01:20 PM.
K3rm1tth3fr0g is offline  
Old 01-07-2021, 06:18 PM   #972
subaru_gc8
Scooby Specialist
 
Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Yeah that makes sense, I am committed to a power band that is high in the rev range, say 5000/5500-9000. So you think replacing the .82 housing with a larger AR for that rev range would be beneficial to not lose power at higher RPM? (Obviously I will be discussing all of these finer points directly with my tuner, I just want some preliminary advice)


.82 seems like a solid compromise between spooling relatively fast for its size and displacement (4.5-5k), and not choking out up top like a .63 seems like it would.


And based on what you said about your stroker setup, doesn't that indicate I should stick with a .82 A/R if I want to rev past 8K and spool isnt really an issue? Just clarifying.

Thanks for explaining everyone!
here is another recommendation. if you are going to rev that high, get a billet crank dont go with the stock one. personally I dont see a reason to go that high in the range, that is what your trans is for, but yeah just my oipinion
subaru_gc8 is offline  
Old 01-07-2021, 07:18 PM   #973
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by subaru_gc8 View Post
here is another recommendation. if you are going to rev that high, get a billet crank dont go with the stock one. personally I dont see a reason to go that high in the range, that is what your trans is for, but yeah just my oipinion
Since I got the car Ive wanted to fully embrace the small displacement aspect of the early WRXs and build a high revving setup 2.0 based setup rather than a hybrid or anything 2.5 based.

But yeah I definitely get your point that high revving setups are less driveable.
K3rm1tth3fr0g is offline  
Old 01-08-2021, 09:58 AM   #974
KillerBMotorsport
NASIOC Vendor
 
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
Vehicle:
2005 WRX/STi
WRB of course

Default

You could get away with having a stock crank precision balanced. The power isn't a problem, but at that RPM balance has far more influence. Another benefit of the billet crank is the improved oiling it offers. At those RPMs the load on the rod bearings will be significantly lower, but the other side of the coil is that you can build heat faster, and more of it. There are few instances of issues with aftermarket cranks as they are generally a HUGE step up from OEM in regards to the benefits. Not that the OEM cranks are weak, but there is more to a crankshaft than just pure strength capability.

Many have gone the small displacement route. There certainly are advantages and disadvantages, just like with anything. From a mechanical standpoint, one of the benefits is a significant reduction in force applied to the rod bearings; a very well known weakness of these engines, but you are moving additional stresses to other areas of the engine at those RPMs.
KillerBMotorsport is offline  
Old 01-11-2021, 10:28 AM   #975
K3rm1tth3fr0g
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

Default

Quote:
Originally Posted by KillerBMotorsport View Post
You could get away with having a stock crank precision balanced. The power isn't a problem, but at that RPM balance has far more influence. Another benefit of the billet crank is the improved oiling it offers. At those RPMs the load on the rod bearings will be significantly lower, but the other side of the coil is that you can build heat faster, and more of it. There are few instances of issues with aftermarket cranks as they are generally a HUGE step up from OEM in regards to the benefits. Not that the OEM cranks are weak, but there is more to a crankshaft than just pure strength capability.

Many have gone the small displacement route. There certainly are advantages and disadvantages, just like with anything. From a mechanical standpoint, one of the benefits is a significant reduction in force applied to the rod bearings; a very well known weakness of these engines, but you are moving additional stresses to other areas of the engine at those RPMs.
That makes a lot of sense.

I'll have to do a lot more research before I settle on a final motor configuration.
K3rm1tth3fr0g is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 08:56 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.