[Karlot]

when I did run that setup, i did have an ebcs and a protune. the previous owner had a cobb ots map, i ran that for like 4 days of ownership and had it pro tuned. so possibly it could have been a tune issue. regardless i never saw any creep, nor would i have been worried about it on a stock turbo, since they cant really hold boost anyway.

 

[JohnSub2013sti]

What did you boost to karlot just out of curiosity. Idk what you mean by holding boost either

Here's a pic consisting of 5000 data points at 0 wgdc kind of interesting.
Red indicates values over the stock boost lvl

The stage 1 tune i found and previously posted is definitely going to be closer to what I need
hopefully ill get through a few more of the tables I'm comparing with the base tune tn

 

[Karlot]

at that time i was running 21psi. and by hold, i mean a stock turbo will NOT hold that much boost, it'll spike up and taper off by redline. I think i was able to get like 14-16psi at redline pending the temp outside (had separate summer/winter tunes).

to make it a little simpler i'd hit 21psi, and at 5k ish rpm it would start to make less boost, by the time it hit the 7k rpm redline, i'd be making 14-16psi, the stock turbo would not hold more than that without modification.

 

[JohnSub2013sti]

Ok it was a mistake to try and make a comparison of two roms using forum post...

See below a document comparing a stage 1 2011 STI (AE5I910V) map to my cars base map (AE5L500V) found here

 

[JohnSub2013sti]

&& Thank you for the feedback Karlot

 

[JohnSub2013sti]

Here is a pic of the 2 gauges I installed

-Aem wideband 30-0334 wired into the rear o2 sensor
-Aem digital boost gauge 30-0306
-SMY Dual 52mm gauge cluster

I don't have the plumbing done under the hood for the boost gauge yet. It's only wired up

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[JohnSub2013sti]

Also did the cylinder 4 cooling mod over the weekend and installed iag aos
I don't have a pic of the aos, though. I'll take one later

GDT Cylinder 4 Chamber Cooling System

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[JohnSub2013sti]

I didn't see any videos of how people generally mount their boost sensors. So I 3d printed a little housing.

I think it turned out pretty well. If anyone wants to let me know how they mounted there's that would be awesome.

I just need some Teflon, and then I can hook everything up. I bought the vacuum line today

(3d print in the bottom right corner)

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[JohnSub2013sti]

What are everyone's thoughts of top feed vs. side feed injectors ? I believe the 2013 sti has top feed

I'm considering doing a tgv delete / fuel rails / lines

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[Karlot]

What are everyone's thoughts of top feed vs. side feed injectors ? I believe the 2013 sti has top feed

I'm considering doing a tgv delete / fuel rails / lines

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You’ll need top feed with a 2013, you are correct that it’s factory equipped with top feed. Top also offers more options than sidefeed for injectors. Do not try to swap to sidefeeds.

and keep in mind, tgvs are an emissions item, you will not be able to tune for deletes with cobb,you might be able to with ecu tek, and definitely with opensource or a standalone system. But you’ll want to check with the tuner first to ensure your tuner will actually do the tune. Most wont for liability issues.

 

[JohnSub2013sti]

I almost wanna do the whole fuel system at the same time, but all I really want is the rails, lines

I doubt a brand matters much for the tgv's. But in terms of rails and lines, what's the best ? Have you ever heard of aeromotive

I would get the cobb pressure regulator a slightly bigger fuel pump and slightly bigger injectors. But I don't wanna tune that, lol

No problem turning off the tgv cel, thou

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[Karlot]

I almost wanna do the whole fuel system at the same time, but all I really want is the rails, lines

I doubt a brand matters much for the tgv's. But in terms of rails and lines, what's the best ? Have you ever heard of aeromotive

I would get the cobb pressure regulator a slightly bigger fuel pump and slightly bigger injectors. But I don't wanna tune that, lol

No problem turning off the tgv cel, thou

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True. Are rails and lines needed for you? What is the setup/power etc. and what fuel are you running?
For rails and lines I personally vote iag, although plenty of others are quality, including aeromotive, I have heard of them but just don’t see many running them anymore. They used to be more popular than they are now. But they work.

 

[JohnSub2013sti]

I'm running 93 octane. Or 91 on occasion, but I try not to. I have a stage 1 tune, and tbh I have no idea how much power it makes

But I want to reduce some of the stumble area. I don't like seeing it. You can literally look at the load comp table and see where it's happening

Mechanical fix > tune fix always
Thanks for the input. Iag have good components in general

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[Karlot]

I'm running 93 octane. Or 91 on occasion, but I try not to. I have a stage 1 tune, and tbh I have no idea how much power it makes

But I want to reduce some of the stumble area. I don't like seeing it. You can literally look at the load comp table and see where it's happening

Mechanical fix > tune fix always
Thanks for the input. Iag have good components in general

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Talk to a tuner. At most you’ll want a fuel pressure regulator. Unlikely you need anything but a tune with those mods.

edit: I ran ALOT more mods(Fbo with stock turbo+header) and never had any fueling issues with the oem fuel system. Protuned of course.

 

[JohnSub2013sti]

I've been talking to a couple the one told me to do all 3 things. Fuel reg, lines, rails

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[Karlot]

Edit above. You should not need rails and lines on a stock turbo.

@yamahaSHO correct me If I’m wrong

 

[JohnSub2013sti]

He's who I actually want to do the tune, lol. He seems the most experienced tbh.

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[yamahaSHO]

Edit above. You should not need rails and lines on a stock turbo.

@yamahaSHO correct me If I’m wrong

Correct. I've seen many people having been told to buy all these parts and install and the problem still isn't fixed... But then I can fix it on an entirely stock fuel system, most of the time. Some cars do benefit from a damper and/or regulator.

He's who I actually want to do the tune, lol. He seems the most experienced tbh.

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Just replied to your e-mail. I will have to ask for your patience over the next week or two due to having my entire house jacked up.

 

[JohnSub2013sti]

Hypothetically @yamahaSHO if I wanted to redo the seals on my injectors to make sure the car was 100% before a tune

&&&& bc of this, I also want to do tgv's, rails, and fuel lines. Since I'll have it ripped apart.

Would the rails and fuel lines screw with anything other than the maf scaling / load comp? If even that

I still want you to tune it. But like I'm dailying the car rn. So if I need something changed in my current tune. I do my best

How's the house coming ? And I also replied to your mail



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[yamahaSHO]

Hypothetically @yamahaSHO if I wanted to redo the seals on my injectors to make sure the car was 100% before a tune

&&&& bc of this, I also want to do tgv's, rails, and fuel lines. Since I'll have it ripped apart.

Would the rails and fuel lines screw with anything other than the maf scaling / load comp? If even that

I still want you to tune it. But like I'm dailying the car rn. So if I need something changed in my current tune. I do my best

How's the house coming ? And I also replied to your mail



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When you say TGV's do you mean deletes? If that is the case, that is not something I can suppress.

For the house... It was supposed to be completed last week. It'll be going into next week, so...