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Old 11-14-2012, 03:08 PM   #51
drewvdw
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I prefer to avoid using the "stage" phrasing. Not many people know what stage 3 is or beyond for that matter. The main purpose of this thread isn't to eliminate boost creep, however I did spend quite a bit of time on that subject. The majority of my experience and research has been on 08/09+WRX's. They suffer heavily from boost creep, so it was only logical for me to spend time explaining it.

I will continue to update the OP with other mods. I'll do my best to explain the purpose as well as what mods should be done in conjunction with others.

Edit: Added more info...
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Last edited by drewvdw; 11-14-2012 at 03:48 PM.
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Old 11-14-2012, 04:23 PM   #52
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so being new to the forums and the subi world.. after reading the part about intakes and then the feedback from whoever responded i'm still torn on weather or not a cold air intake or even a shirt ram is a better way to go than getting a drop in for my 2010 WRX Hatch. I ordered a drop in from Perrin and figured i'd try out the cheaper way first. I'm sure i wont be feeling a difference or anything but i'm still curious to know which is a better route
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Old 11-14-2012, 04:27 PM   #53
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Well, you won't feel a difference. Some have said that even a drop in filter must be tuned for in the newer cars. Personally, I have a hard time believing it, but I suppose it is possible. Either way, a CAI requires a tune. You will feel a difference from being tuned with or without an intake. I'd start by getting a tune, then go for a downpipe.
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Old 11-14-2012, 04:56 PM   #54
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^ALL of This

You will mostly just HEAR a difference with nothing else done.
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Old 11-18-2012, 03:38 PM   #55
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Bump for updated info on 08+ 5mt.

Edit: Also added 3 port vs 4 port EBCS.

Last edited by drewvdw; 11-18-2012 at 04:22 PM.
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Old 11-27-2012, 07:13 PM   #56
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Update: Added suspension and bushing sections
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Old 11-27-2012, 11:16 PM   #57
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Quote:
Originally Posted by drewvdw View Post
Update: Added suspension and bushing sections

WHAAAA?!?
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Old 11-27-2012, 11:17 PM   #58
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Well, what little knowledge I have about them
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Old 11-27-2012, 11:21 PM   #59
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I've done plenty of bushing upgrades and they make a huge difference for the money.

BTW, this is a great thread with good basic info. I smell a STICKY!!
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Old 11-27-2012, 11:27 PM   #60
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Haha, thanks, I appreciate it, there's a lot of hours into just writing this, let alone all the research behind all of it.

You don't happen to have a good list of bushings and what they do/their effect on handling, do you?
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Old 11-27-2012, 11:56 PM   #61
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For bushings and what they do I would consult TiCs website. That's where i get most of my bushings. The Old Bush New Bush replaces almost all of the suspension bushings and they describe where they go and what they do. I can look around for some more/better info too.
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Old 11-28-2012, 12:33 AM   #62
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Drew, you have a PM.
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Old 11-28-2012, 12:52 AM   #63
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Haha, I was reading up and adding to this while I ignored your PM, I didn't think about it.
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Old 11-28-2012, 12:57 AM   #64
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Oh well. Haha. I think I added some things in there that you might not have. But then again maybe not. Good work regardless.
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Old 11-28-2012, 12:58 AM   #65
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Yeah, there's a few more things I'll be adding tonight or tomorrow. You really don't understand how much work one of these is until you do it
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Old 11-28-2012, 01:01 AM   #66
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I hear you man. That little bit I sent you felt like researching a thesis paper or something. Keep the good stuff comin man!!
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Old 11-28-2012, 11:05 AM   #67
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First off, great info. With that being said, I have a question regarding TGV deletes. My car has most of the things you mention in the first post. The TGVs are not next on my list, but they are on my list. So here is my question:

The two main benefits of composite TGV deletes are less restrictive air flow at initial start-up and cooler intake temps, correct? Since our 08+ cars already have composite intake manifolds, will we see any cooling benefit from composite TGVs? If not, is the less restrictive airflow alone enough of a benefit to make them worthy of upgrading? I guess what I'm wondering is, does the benefit come more from cooler temps or from improved airflow?

Thanks.
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Old 11-28-2012, 11:10 AM   #68
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The composite TGV deletes are an option, you can also have your stockers ported and polished. I wouldn't think that the gains from going to composite would be very measurable, but I could be wrong. Composite TGV's are just coming onto the scene.

They both should have roughly the same airflow once done, the composite just adds the insulating factor. Personally I run regular TGV deletes with a phenolic spacer. I did this well before composite TGV's came out, but my point stands that you can still achieve the insulating effect to some degree without composite.
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Old 11-28-2012, 12:44 PM   #69
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I just picked up my GB set of composite TGVs and I think the inner diameter is same as a PnPed stock TGV. For guys with metal intake manifolds the benefits will definitely be better/greater than the new composite intake guys. I think it comes down to how much time and money are you willing to put in for so-so gains? Probably a better bang for you buck mod out there, depending on what you already have.
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Old 11-28-2012, 02:09 PM   #70
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I know this is a "post" stage 2 modification thread. However, in speaking with my local tuner it was recommended that I get a EBCS and some fuel modifications. They recommended the DW65c fuel pump and upgraded 850cc injectors. I know it's not necessarily necessary, but it seems recommended. I guess my question is, what are the purpose of the bigger injectors at stage 2 levels? Just a failsafe because they seem to run at near capacity at stage 2?

Also, I plan to eventually modify beyond this, just planning to do the remainder and get a retune in the summer. I do plan on going E85, do you feel the recommended 850cc injectors will need to be upgraded once again, should I go bigger?

Also, if there are issues of boost creep/spikes, especially with a catless setup which I'll have, does the EWG/EBCS actually fix this?
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Old 11-28-2012, 02:24 PM   #71
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It depends on the tuner and what they recommend. For 08+ WRX's and STI's, the fuel system is more tasked and closer to 100% Injector Duty at Stage 2. For 02-07's this is not true.

EBCS would be souly based on the tuner. It's not at all needed, but could help out anyone for a bit of peace of mind.
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Old 11-28-2012, 02:28 PM   #72
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Both of those are great ideas at stage 2 power levels, especially on newer WRX's. Your car will be at the limit of the injectors and fuel pump, so yes, they could be viewed as a failsafe right now. You want to go bigger in the future, so you may as well go with bigger injectors and fuel pump. An EBCS won't solve any boost creep issues, but it may slightly help. I wouldn't rely on it and would get an external wastegate.

850cc to 1000cc injectors seem to be about perfect for most people running E-85. That's something you have to talk to your tuner about as some won't deal with certain brand injectors.

An EWG and EBCS setup will solve your boost creep issues, go with the largest you can afford. I have a 38mm EWG and it works great. There's no benefit to a smaller wastegate.
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Old 11-28-2012, 11:26 PM   #73
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Bump for updated info.
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Old 08-06-2013, 04:12 AM   #74
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Bumping for a good read. Thanks OP!
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