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Old 04-05-2013, 10:13 AM   #1
Bobert0989
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As many of you know by now, I'm new to the Subaru tuning world. I run a basically stock 2002 WRX, and have just ordered a rebuilt block (with Cosworths) from PMP here on the forum.

I had originally wanted a GrimmSpeed 3-port, for the obvious reasons:

Better flow
Easy to tune
Consistent boost

And GrimmSpeed's unit comes with an OEM harness connector, so no splicing for installation.

The car has a Stage 2 clutch kit, lightweight flywheel, HKS exhaust (cat-less downpipe), and other suspension mods not really important here... Should I bother with a 3-port right now? And if I do go for it, won't I need bigger injectors as well to really optimize it's use? It's a daily driver, never on the track, and it's plenty fun to drive before ANY mods, and I plan to tune it around 18-19psi peak (safe street tune).

So my main questions here are:

1.) Will the 3-port require larger injectors?
2.) Should I bother for a daily driver?

Thanks in advance,

Bobby
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Old 04-05-2013, 10:26 AM   #2
fastnoypi
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Ask your tuner if its worth it for you, for a relatively stock setup the stock bcs is fine for most people unless its dying. Your tuner will also be able to determine if you need larger injectors and maxing out your current ones. It has to do with the flow of your turbo, not the type of boost control you decide on.
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Old 04-05-2013, 11:19 AM   #3
ogboot
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It's a good upgrade if you plan to go bigger or want better boost control. But, it's certainly not required. I'm an owner and couldn't be happier, but it depends on your setup and does require a tune.
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Old 04-05-2013, 11:39 AM   #4
Bobert0989
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My tuner did advise me that the stock injectors would cut fuel with the 3-port, and the car is getting a complete tune when the new longblock goes in, so that's already calculated-in. But if I don't plan to go much bigger with the performance aspects of this engine, is there much benefit to the 3-port? I am thinking that IF I decided down the road to go for a power-build, I can always just plan to spend the extra $500 or so for injectors and get the 3-port then... I was only asking if it would really serve any substantial benefit for me at this point in time?

Thanks for the advice, I appreciate it!
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Old 04-05-2013, 12:31 PM   #5
ogboot
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Quote:
Originally Posted by Bobert0989 View Post
My tuner did advise me that the stock injectors would cut fuel with the 3-port
This is false. If you hit fuel cut with the ebcs then it was an issue with the stocker as well. Ebcs alone does not require an injector upgrade.
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Old 04-05-2013, 12:54 PM   #6
2gnt2wrx
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My advice is get one and find a different tuner. The fact that he said it will make it hit fuel cut... tells us that he encountered a gs ebcs and couldn't figure out how to dial it in.
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Old 04-05-2013, 12:57 PM   #7
Bobert0989
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Quote:
Originally Posted by ogboot View Post

This is false. If you hit fuel cut with the ebcs then it was an issue with the stocker as well. Ebcs alone does not require an injector upgrade.
It's not been an issue before, but he did advise me to upgrade the injectors if I install the 3-port. He also said he could "modify" the stock injectors to feed more, but I'm not really one for Jerry-rigging when it comes to an engine build... Have you ever heard of doing that? I assume he has a way of boring them to a slightly larger size, but didn't talk to him about it much.
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Old 04-05-2013, 01:02 PM   #8
2gnt2wrx
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Quote:
Originally Posted by Bobert0989 View Post
It's not been an issue before, but he did advise me to upgrade the injectors if I install the 3-port. He also said he could "modify" the stock injectors to feed more, but I'm not really one for Jerry-rigging when it comes to an engine build... Have you ever heard of doing that? I assume he has a way of boring them to a slightly larger size, but didn't talk to him about it much.
It involves cutting off the tips of the injectors. I suggest you use the search function at the top of the page... This horse has been dead and beaten for years now.
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Old 04-05-2013, 03:16 PM   #9
HinshawWRX
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3 port BCS discussion has been beat for years now also.

It allows for better, more consistent boost control. There is no "better flow" or a "worth it value" question. If you can afford a 90 dollar part, and 3-600 dollar tune then go for it. Otherwise the stock BCS is fine.
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Old 04-05-2013, 04:14 PM   #10
Bobert0989
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Thanks for the info guys!
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Old 04-05-2013, 04:31 PM   #11
Unabomber
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This wallpaper is in the White House. A company called Zuber et Cie makes it. It literally costs more than your house. Is it worth it? Think this response through as to how it applies to your question.

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Old 04-05-2013, 06:17 PM   #12
ProfessWRX
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Quote:
Originally Posted by Bobert0989 View Post
My tuner did advise me that the stock injectors would cut fuel with the 3-port
Make sure when you go to a tuner that they actually know how to tune. Cause it sounds like you talked to a simpleton.
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Old 04-06-2013, 12:00 AM   #13
D-Rodman
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Quote:
Originally Posted by Unabomber View Post
This wallpaper is in the White House. A company called Zuber et Cie makes it. It literally costs more than your house. Is it worth it? Think this response through as to how it applies to your question.
I love your abstract analogy, beautifully executed.
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Old 04-06-2013, 05:33 AM   #14
Bobert0989
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Quote:
Originally Posted by Unabomber View Post
This wallpaper is in the White House. A company called Zuber et Cie makes it. It literally costs more than your house. Is it worth it? Think this response through as to how it applies to your question.
I have that wallpaper in my guest bathroom! Coincidence? Lol
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Old 04-06-2013, 08:12 AM   #15
SammyJankis
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Quote:
Originally Posted by Unabomber View Post
This wallpaper is in the White House. A company called Zuber et Cie makes it. It literally costs more than your house. Is it worth it? Think this response through as to how it applies to your question.

hahah this response should be posted on 90+ % of all new threads
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