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Old 03-24-2008, 02:36 PM   #51
fastenova
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Quote:
Originally Posted by XanRules View Post
Talked to some technicians, turns out on the 97s or so the snorkus was PURELY acoustic.
On the 2.2L you mean? Or all? This goes against what williaty is saying...
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Old 03-24-2008, 04:17 PM   #52
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Quote:
Originally Posted by XanRules View Post
Talked to some technicians, turns out on the 97s or so the snorkus was PURELY acoustic.
They say the same thing about it now. Only it's obviously not true. So take their statement with a large grain of salt.
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Old 03-25-2008, 02:51 AM   #53
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well I think from like 97 or around there to 04 or so impreza's were map based to the snorkus was just acoustic, but earlier years 90 to like 97 were maf based and then they brought it back in 04. I have the hybrid intake on my 95 with a 1.8 and can notice the difference compared to the SRI I had before.
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Old 03-25-2008, 08:45 AM   #54
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I'm ordering a cosmo sri shortly, and gonna try the hybrid setup in the 2005 Saab 9-2x I just bought. Is there any benefit at all to getting a high-flow drop in filter for the factory airbox? If so, any recommendations on a good "dry" filter? I know K&N makes a drop in panel, but I'd rather not deal with the oiling and such (plus i've heard that can dirty up the MAF sensor if done incorrectly)

Last edited by Gbreadman04; 03-25-2008 at 11:09 AM.
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Old 03-25-2008, 08:46 AM   #55
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My '99 impreza obs was a phase 2 maf ej223... Really baffled the subaru parts guys whenever i went in there :?

Williaty, do you have an oem filter in your setup? I have read articles both praising and criticizing aftermarket filters like the K&N.
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Old 03-25-2008, 01:44 PM   #56
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Quote:
Originally Posted by Gbreadman04 View Post
I'm ordering a cosmo sri shortly, and gonna try the hybrid setup in the 2005 Saab 9-2x I just bought. Is there any benefit at all to getting a high-flow drop in filter for the factory airbox? If so, any recommendations on a good "dry" filter? I know K&N makes a drop in panel, but I'd rather not deal with the oiling and such (plus i've heard that can dirty up the MAF sensor if done incorrectly)
If you're going to try the hybrid, don't waste your money on the Cosmo. Yes, the Cosmo pipe would work, but it's WAAAAAY cheaper to get one off eBay.

Don't worry about the panel. None of them flow enough better than the OEM paper filter to be worth your time. If you want a re-usable filter in hopes of saving money, though, look at the AEM Dryflow or AMSoil EaA lines of filters.

Last edited by williaty; 03-25-2008 at 04:53 PM. Reason: Removed typo in filter type
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Old 03-25-2008, 01:45 PM   #57
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Quote:
Originally Posted by Soon2BturbodRS View Post
My '99 impreza obs was a phase 2 maf ej223... Really baffled the subaru parts guys whenever i went in there :?

Williaty, do you have an oem filter in your setup? I have read articles both praising and criticizing aftermarket filters like the K&N.
See my answer to the other guy.
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Old 03-25-2008, 03:08 PM   #58
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Quote:
Originally Posted by williaty View Post
If you're going to try the hybrid, don't waste your money on the Cosmo. Yes, the Cosmo pipe would work, but it's WAAAAAY cheaper to get one off eBay.

Don't worry about the panel. None of them flow enough better than the OEM paper filter to be worth your time. If you want a re-usable filter in hopes of saving money, though, look at the AEM Dryflow or AMSoil EaO lines of filters.
You mean EaA
You can't put an oil filter in your airbox!

I just got an EaA. However, the oil analysis people over at the maintenance forums say that these filters don't filter as well and contribute to higher silicone counts in their oil (meaning more stuff gets through), but I decided to ignore that and get it for the sake of reusing it without much hassle. It seems to be a good medium between filtering the air and K&N's reusability, although they seem to have a reputation for letting crap through.

But all these tests have so many variables and stuff that it's all inconsistent... Just do whatever... But the resuseability is a plus. I don't like K&N though, the oil that they use can gunk the MAF.
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Old 03-25-2008, 04:52 PM   #59
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Quote:
Originally Posted by formula91 View Post
However, the oil analysis people over at the maintenance forums say that these filters don't filter as well and contribute to higher silicone counts in their oil
This is true of basically everything that's not a paper filter. The new nano-scale filters from AMSoil and AEM supposedly do a better job than oiled fibre or foam, and certainly better than the steel mesh, but still not as good as paper.
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Old 03-26-2008, 03:28 PM   #60
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Anyone have a picture of the ebay intake piping next to or above the stock section? To see the actual difference in size, ect.
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Old 03-26-2008, 04:15 PM   #61
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I just ordered mine today, so when it comes and i do the swap, i'll try to get pics up for you to compare.
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Old 03-26-2008, 06:19 PM   #62
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So i installed a SRI a month ago. Gas mileage seems the same, and i'm not seeing any smoke. How can I tell whether or not my car is running rich?


07 2.5i
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Old 03-26-2008, 06:22 PM   #63
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Logging with RomRaider and a WBO2.
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Old 03-26-2008, 07:43 PM   #64
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What wideband are you using in conjuction w/ romraider?

sorry for all the questions
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Old 03-26-2008, 08:17 PM   #65
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Innovate Motorsports LC-1. Definitely the way to go.
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Old 03-26-2008, 10:36 PM   #66
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So let me get this straight in my head here. Taking out the snorkus and snorkel is way bad because the engine will run rich. But im no expert, or mechanic. So how rich is this running. Is it really that significant. Im in a 4eat so i wont be spending much time down in those rpm ranges. And the consequences for keeping my setup with just a snorkus/ snorkel delete would be...?
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Old 03-26-2008, 10:39 PM   #67
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Originally Posted by bulletproof4130 View Post
So let me get this straight in my head here. Taking out the snorkus and snorkel is way bad because the engine will run rich. But im no expert, or mechanic. So how rich is this running. Is it really that significant. Im in a 4eat so i wont be spending much time down in those rpm ranges. And the consequences for keeping my setup with just a snorkus/ snorkel delete would be...?
Quite rich at times. As bad as about 5:1.

Long term consequences are unknown. However bore wash is not unreasonable, nor are fueling errors higher up in the rev range due to AF Learning established in this range. Basically, no one knows how big of a deal it is yet, but I'm not going to be the one that finds out.
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Old 03-26-2008, 10:47 PM   #68
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Does the snorkus/ snorkel delete void the warranty? May be a stupid question but I really do not know. And Im not doubting your findings and research, dont get me wrong, but why would spt put out a sri if this is the case. Curiosity.
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Old 03-26-2008, 10:52 PM   #69
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1) You need to read the "Warranties Can't Be Voided" sticky in Newbs (I think)

2) SPT is well known for putting out intakes that cause major problems (the LGT one is HORRIBLE) and AFAIK, SPT still hasn't come out with one for the MAF-based RSes
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Old 03-26-2008, 11:02 PM   #70
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...unless they can link the problem to whatever mod you made/unmade...correct? I was just wondering. I guess voided was the wrong word. So im guessing if I run into these problems they could prove it...thus answering my own question. Either way. Great thread williaty. Ill have to do some more research and see which way I want to go from here. But thanks for putting out the information. Great someone is looking out for N/A guys.
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Old 03-26-2008, 11:07 PM   #71
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...unless they can link the problem to whatever mod you made/unmade...correct? I was just wondering. I guess voided was the wrong word. So im guessing if I run into these problems they could prove it...thus answering my own question. Either way. Great thread williaty. Ill have to do some more research and see which way I want to go from here. But thanks for putting out the information. Great someone is looking out for N/A guys.
Basically, yeah. If you have an engine problem and you've changed anything about the intake, they have a reasonable case to say "your engine burnt up because the intake caused it to run lean" or "your block seized because the intake caused it to run rich and bore wash".

They'd have a much harder time getting away with blaming a blown strut on an intake.
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Old 03-26-2008, 11:13 PM   #72
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Yeah, but I can afford a strut. An engine... probably not lol.
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Old 03-27-2008, 12:49 AM   #73
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Oh whatever, just make it look stock if that happens (and it won't).

SPT's are far worse, they're overpriced and suck.
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Old 03-27-2008, 01:04 AM   #74
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I was messing around with my SRI today, and extended it into the fender quite some distance, and to my surprise, it no longer bogs the engine at low RPM, and there's a massive power boost at 2,000 rpm. There's also no audible resonance until around 4,000 rpm, I'm wondering if I just accidentally happened across my own resonance chamber.
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Old 03-27-2008, 01:10 AM   #75
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Quote:
Originally Posted by Chi_San View Post
I was messing around with my SRI today, and extended it into the fender quite some distance, and to my surprise, it no longer bogs the engine at low RPM, and there's a massive power boost at 2,000 rpm. There's also no audible resonance until around 4,000 rpm, I'm wondering if I just accidentally happened across my own resonance chamber.
That's interesting. Pictures of intake?
It is reasonable to assume that bends in the piping can take out helmholtz resonations.

Also, williaty's discoveries don't apply for all MAF cars it seems either. Sometimes, it's inconsistent between cars. For the most part though, it does happen. However, it's only Will's car we have data from.

We need more cars to log and show. And for the most part, people have seen this happen.

The way people can get rid of them may be many. Especially for different years.
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