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Old 12-21-2020, 12:58 PM   #8876
undyjr
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Join Date: Dec 2016
Chapter/Region: South East
Location: Hampton Roads Va
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2019 WRX STI
silica black

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I wanted to run something by you all. My 2019 STi is FBO, flex fuel, and 20G XTR. In the process of pulling the header to install my Perrin motor mounts I noticed the primary for cylinder #4 (just had to be #4) was black and the other three were a light tan. Rubbing your finger left no residue. Looking into the exhaust ports I saw no differences between the four. When I was initially dyno tuned for stage two the motor passed a compression test done by the tuning shop. That was about 10K miles ago and now I'm tuned for a 20G XTR, EWG, and Killer Bee holy header. I opted for a conservative tune that netted 380WHP and 370WTQ on a dyno jet. Ever since my factory specified break in I consume 1 qt every 3k miles. I do get on it frequently and do a lot of engine braking so the oil consumption doesn't concern me too much. Every one of my Blackstone oil analysis's has come back good. Knock consists of the occasional 1.41 at high load tip in and never during WOT.

I've decided to do a step by step diagnostics process that my tuner an I have agreed on. First is after 10+ tanks of E70-80 I ran a tank of 93 through it and was surprised at how fast my exhaust tips sooted up. After a couple more tanks of 93 I intend on pulling the header and inspecting it. If the primary is still black I will pull the plugs, inspect, and compression test. While I'm under there I will install the cylinder 4 cooling kit I got last Christmas. I'd like to add that at no point in time is smoke apparent from the exhaust, start up or otherwise.

So on to my question. Do those of you that go from E85 to 91/93 experience the sooting up of the exhaust tips? My hope is that my ID1300 injector for #4 was dirty and delivering too much fuel and the 93 will clear it up. The way the car runs has given me no indication there is an issue. Any insight you all could offer would be appreciated.
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Old 12-30-2020, 11:26 PM   #8877
jesseisbeast
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Join Date: Apr 2017
Location: Southern California
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2008 WRX
Gray

Default 2008 WRX JDM 2.0 Swapped

362 WHP & 337 WTQ on Dynapack / jesseisbeast / 08 WRX hatch / JDM 2.0 swap + Tomioka 20G / 1000cc @ 98% / @ sea level


Forged internals and full bolt ons. Could have made more power but we ran out of injectors. I also think I have a preturbo exhaust leak which is why the spool is so slow. Tuned by Henry at Church automotive.

Last edited by jesseisbeast; 01-03-2021 at 04:27 PM.
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Old 01-01-2021, 06:34 PM   #8878
tjmazz13
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2004 Pearl White STi
IAG1000, PTE6870, Haltech

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2004 STi
60*/479ft above sea level
891whp/825wtq Mustang Dyno
FIC2600cc injectors
Precision Gen2 6870@45psi E80
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Old 01-27-2021, 03:14 PM   #8879
lidrew
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Quote:
Originally Posted by tjmazz13 View Post
2004 STi
60*/479ft above sea level
891whp/825wtq Mustang Dyno
FIC2600cc injectors
Precision Gen2 6870@45psi E80
Damn ! I would be happy with 400 whp.
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Old 02-08-2021, 08:49 PM   #8880
nerz
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Quote:
Originally Posted by tjmazz13 View Post
2004 STi
60*/479ft above sea level
891whp/825wtq Mustang Dyno
FIC2600cc injectors
Precision Gen2 6870@45psi E80
I would like to see the cliff of this dyno graph.
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Old 02-24-2021, 05:59 PM   #8881
highrevracer951
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CWP

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Good afternoon everyone. I have another question before I go flex fuel. I already have all the parts to go flex but my tuner recommends I go with an EWG prior to coming in for a tune. Is this a necessary piece (I don’t have a problem doing it) or is the stock setup ok for flex. I currently am tuned with 1050 injectors, turbo inlet, catless TB, grimmspeed fmic and intake, 3 port ebcs, and regulator. If an EWG is recommended, I’m looking at the grimmspeed one as it looks like a well built piece. Any help would be great, thanks again everyone.
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Old 02-28-2021, 09:16 AM   #8882
milab21
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2007 WRB STI-sold

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Quote:
Originally Posted by highrevracer951 View Post
Good afternoon everyone. I have another question before I go flex fuel. I already have all the parts to go flex but my tuner recommends I go with an EWG prior to coming in for a tune. Is this a necessary piece (I don’t have a problem doing it) or is the stock setup ok for flex. I currently am tuned with 1050 injectors, turbo inlet, catless TB, grimmspeed fmic and intake, 3 port ebcs, and regulator. If an EWG is recommended, I’m looking at the grimmspeed one as it looks like a well built piece. Any help would be great, thanks again everyone.
Not necessary but I feel like that is the go to setup for stage 2 +. Also I would do it just because your tuner should know best. It will help control boost. I have the same mod list as you, with grimmspeed external wastegate, minus the front mount. I have a killer b elh as well. 344whp 376wtq E66 on primes mustang dyno. That was recommended to me. Good luck with your decision
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Old 02-28-2021, 09:24 AM   #8883
K3rm1tth3fr0g
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Link G4X flex tuned
02' EJ205 20G 6MT wagon

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Quote:
Originally Posted by highrevracer951 View Post
Good afternoon everyone. I have another question before I go flex fuel. I already have all the parts to go flex but my tuner recommends I go with an EWG prior to coming in for a tune. Is this a necessary piece (I don’t have a problem doing it) or is the stock setup ok for flex. I currently am tuned with 1050 injectors, turbo inlet, catless TB, grimmspeed fmic and intake, 3 port ebcs, and regulator. If an EWG is recommended, I’m looking at the grimmspeed one as it looks like a well built piece. Any help would be great, thanks again everyone.

The problem with the VF turbos is they like to boost creep a lot especially at higher boost so going EWG is a great idea and you should 100% listen to your tuner if they say its an important piece of the puzzle for your build.
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Old 03-02-2021, 09:56 PM   #8884
taxkourel
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Quote:
Originally Posted by K3rm1tth3fr0g View Post
The problem with the VF turbos is they like to boost creep a lot especially at higher boost so going EWG is a great idea and you should 100% listen to your tuner if they say its an important piece of the puzzle for your build.


Agreed. Had exact same issue (boost creep) than an ewg resolved
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Old 03-04-2021, 12:01 AM   #8885
highrevracer951
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CWP

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Thank you guys for the replies. I ended up getting the ewg so I just need to set up a dyno time to get the flex set up.
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Old 03-04-2021, 09:42 AM   #8886
eaglehunter
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For the ewg you get different springs that actuate at higher or lower psi. Depending on what your tuner recommends, I suggest going for a stronger spring that opens at higher boost... it helps to not hve to be too careful with the throttle when you dont want it to be loud... mine starts opening around 7psi and I wish I had known about it beforehand. I would have prefereed it opening somewhere between 12 and 15 psi...
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Old 03-12-2021, 10:16 AM   #8887
tjmazz13
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IAG1000, PTE6870, Haltech

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Quote:
Originally Posted by nerz View Post
I would like to see the cliff of this dyno graph.


The dip you see in the graph was from the car getting loose and starting to spin some.
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Old 04-27-2021, 02:19 PM   #8888
gtlyearsley
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Join Date: May 2019
Chapter/Region: RMIC
Location: Instagram: jeremy_yearsley
Vehicle:
2020 STI
741awhp (Mikeytuned)

Default The E85 Army Thread

Power mods and supporting mods are:

20 STI
ETS rotated kit W/PT 6466 .82 A/R
ETS V2 header
PT 46mm EWG
ID 2600's
Cobb FMIC
Cobb flex fuel
Cobb fuel pressure sensor
Processwest "street series " intake manifold
Boomba 75mm throttle body
TGV deletes
EGR deletes
IAG rails and lines
IAG AOS " comp series "
ETS TBE 3" catless W/ mufflers
Grimmspeed EBCS
Tial Q BOV
3mm phenolic spacer
Radium dual hanger Walbro 450's ( hard wired )
-8 feed and -6 return lines
Aeromotive FP regulator
Air pump delete
Competition clutch twin disc organic

Elevation: 4200 ish feet
Injector duty cycle: 48.28%
Fuel pressure: 71 psi
Boost 28 psi tappering 24 psi
E60 blend day of final flex fuel tune

Tuned by: Mike Botti Etune

Last edited by gtlyearsley; 04-28-2021 at 07:10 PM. Reason: forgot info
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Old 04-28-2021, 08:20 AM   #8889
lidrew
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Member#: 142417
Join Date: Mar 2007
Location: LONG ISLAND
Vehicle:
2011 STi
Dgm

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Quote:
Originally Posted by gtlyearsley View Post
Power mods and supporting mods are:

20 STI
ETS rotated kit W/PT 6466 .82 A/R
PT 46mm EWG
ID 2600's
Cobb FMIC
Cobb flex fuel
Cobb fuel pressure sensor
Processwest "street series " intake manifold
Boomba 75mm throttle body
TGV deletes
IAG rails and lines
IAG AOS " comp series "
ETS TBE 3" catless W/ mufflers
Grimmspeed EBCS
Tial Q BOV
3mm phenolic spacer
Radium dual hanger Walbro 450's ( hard wired )
-8 feed and -6 return lines
Aeromotive FP regulator

Elevation: 4200 ish feet
Injector duty cycle: 48.28%
Fuel pressure: 71 psi
Boost 28 psi tappering 24 psi
E60 blend day of final flex fuel tune

Tuned by: Mike Botti Etune
Nice set up on a new car! Trying to determine my direction with my 2020 STi.

What headers you using? How much power?
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Old 04-28-2021, 08:45 AM   #8890
gtlyearsley
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Location: Instagram: jeremy_yearsley
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741awhp (Mikeytuned)

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Quote:
Originally Posted by lidrew View Post
Nice set up on a new car! Trying to determine my direction with my 2020 STi.

What headers you using? How much power?
Thank you! Ya I bought it brand new then starting tearing it apart lol.

Stock block too!

Whoops i forgot to add that. I'm using ETS V2 headers!

He said its around 600 wheel map
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Old 04-28-2021, 11:06 AM   #8891
lidrew
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Dgm

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Quote:
Originally Posted by gtlyearsley View Post
Thank you! Ya I bought it brand new then starting tearing it apart lol.

Stock block too!

Whoops i forgot to add that. I'm using ETS V2 headers!

He said its around 600 wheel map
Excellent!. I’m on my 3rd STi. Got 1400 miles on my 2020 stage 1 pro tuned so far.....Have a bunch of parts from my flexfuel 2011 and going to do something soon I will probably only go stock location 20g or Green and TMIC with flexfuel but would love a rotated set up, FMIC and that PW manifold is a thing of beauty!
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Old 04-28-2021, 01:48 PM   #8892
gtlyearsley
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Member#: 501308
Join Date: May 2019
Chapter/Region: RMIC
Location: Instagram: jeremy_yearsley
Vehicle:
2020 STI
741awhp (Mikeytuned)

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Quote:
Originally Posted by lidrew View Post
Excellent!. I’m on my 3rd STi. Got 1400 miles on my 2020 stage 1 pro tuned so far.....Have a bunch of parts from my flexfuel 2011 and going to do something soon I will probably only go stock location 20g or Green and TMIC with flexfuel but would love a rotated set up, FMIC and that PW manifold is a thing of beauty!
That's awesome! Or even a FP blue I definitely do not recommend going with their big inlet on a stock IM, as it gets pinched from the TGV housing. Not good lol.

Who protuned you don't mind me asking?
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Old 04-28-2021, 01:56 PM   #8893
K3rm1tth3fr0g
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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 gtlyearsley View Post
Power mods and supporting mods are:

20 STI
ETS rotated kit W/PT 6466 .82 A/R
ETS V2 header
PT 46mm EWG
ID 2600's
Cobb FMIC
Cobb flex fuel
Cobb fuel pressure sensor
Processwest "street series " intake manifold
Boomba 75mm throttle body
TGV deletes
IAG rails and lines
IAG AOS " comp series "
ETS TBE 3" catless W/ mufflers
Grimmspeed EBCS
Tial Q BOV
3mm phenolic spacer
Radium dual hanger Walbro 450's ( hard wired )
-8 feed and -6 return lines
Aeromotive FP regulator
Competition clutch twin disc organic

Elevation: 4200 ish feet
Injector duty cycle: 48.28%
Fuel pressure: 71 psi
Boost 28 psi tappering 24 psi
E60 blend day of final flex fuel tune

Tuned by: Mike Botti Etune
May I ask why you're running the injectors at such a modest duty cycle with a high fuel pressure? Seems like you have a decent bit of injector left.

Your setup looks bonkers, would love to see a clip of the car during a pull.
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Old 04-28-2021, 06:59 PM   #8894
gtlyearsley
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Join Date: May 2019
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Location: Instagram: jeremy_yearsley
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741awhp (Mikeytuned)

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
May I ask why you're running the injectors at such a modest duty cycle with a high fuel pressure? Seems like you have a decent bit of injector left.

Your setup looks bonkers, would love to see a clip of the car during a pull.

That was fuel pressure on the pull as well as injector duty cycle. My fuel system is definitely more then I need atm, but I bought with the intentions of a built motor in the near future. But yes I need to! Botti actually sent me another fire map and I am yet to do a pull and some logs. So it will be more power

I do have a clip of a prior map revision when the stock clutch started slipping. It started to slip around 5400 rpm lol. And that was around 25 psi
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Old 04-28-2021, 07:46 PM   #8895
K3rm1tth3fr0g
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Join Date: Nov 2019
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Location: Greater Seattle Area
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Link G4X flex tuned
02' EJ205 20G 6MT wagon

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Quote:
Originally Posted by gtlyearsley View Post
That was fuel pressure on the pull as well as injector duty cycle. My fuel system is definitely more then I need atm, but I bought with the intentions of a built motor in the near future. But yes I need to! Botti actually sent me another fire map and I am yet to do a pull and some logs. So it will be more power

I do have a clip of a prior map revision when the stock clutch started slipping. It started to slip around 5400 rpm lol. And that was around 25 psi
I wonder what your quarter mile time would be
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Old 04-28-2021, 09:33 PM   #8896
gtlyearsley
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Location: Instagram: jeremy_yearsley
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2020 STI
741awhp (Mikeytuned)

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Quote:
Originally Posted by K3rm1tth3fr0g View Post
I wonder what your quarter mile time would be

I’m wondering too! They did close our local track a few years ago. So the closest place would be Nevada for me. In that setting anyways lol
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Old 04-29-2021, 09:12 AM   #8897
K3rm1tth3fr0g
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Join Date: Nov 2019
Chapter/Region: NWIC
Location: Greater Seattle Area
Vehicle:
Link G4X flex tuned
02' EJ205 20G 6MT wagon

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Quote:
Originally Posted by gtlyearsley View Post
I'm wondering too! They did close our local track a few years ago. So the closest place would be Nevada for me. In that setting anyways lol
Your setup looks like it would put down some serious numbers.

Did you buy the car new?

You got a virtual dyno sheet?

I am building a big motor setup in my 02 lol. Using a GTX 3576 Gen2, IAG magnum SB, 207 Spec C heads, 199D cams, ETS FMIC, STI non-DCCD 6MT etc. Should be a rocket ship on ethanol when its done. And it'll rev to 8K

Last edited by K3rm1tth3fr0g; 04-29-2021 at 01:03 PM.
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Old 04-29-2021, 09:51 AM   #8898
gtlyearsley
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Join Date: May 2019
Chapter/Region: RMIC
Location: Instagram: jeremy_yearsley
Vehicle:
2020 STI
741awhp (Mikeytuned)

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Your setup looks like it would put down some serious numbers.

Did you buy the car new?

You got a virtual dyno sheet?

I am building a big motor setup in my 02 lol. Using a GTX 3576 Gen2, IAG magnum, SB 207 Spec C heads, 199D cams, ETS FMIC, STI non-DCCD 6MT etc. Should be a rocket ship on ethanol when its done. And it'll rev to 8K

Yep brand new last July!

I got this plot from a few of the revisions. Keep in mind it doesn’t have my final revision, as I have yet to log it

Man that thing will be a screamer also! Ethanol is king

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Old 04-29-2021, 09:55 AM   #8899
K3rm1tth3fr0g
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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 gtlyearsley View Post
Yep brand new last July!

I got this plot from a few of the revisions. Keep in mind it doesn't have my final revision, as I have yet to log it

Man that thing will be a screamer also! Ethanol is king

Yeah my setup should be pretty wacko once all together. The Link ECU (in order to run flex fuel on my chassis) and AiM dash I am installing in a few weeks is gonna be very interesting in my old car.

That dyno chat. Sheesh it just pulls and pulls!

You said you're stock on the stock clutch? That's pretty neat.
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Old 04-29-2021, 10:00 AM   #8900
gtlyearsley
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Member#: 501308
Join Date: May 2019
Chapter/Region: RMIC
Location: Instagram: jeremy_yearsley
Vehicle:
2020 STI
741awhp (Mikeytuned)

Default

Quote:
Originally Posted by K3rm1tth3fr0g View Post
Sheesh it just pulls and pulls.

You said you're stock on the stock clutch? That's pretty neat.
Stock clutch held to R12 lol. Around 450ish lbft. So that next week I put in the Comp twin disc
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