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Old 07-24-2009, 01:09 AM   #1
blckout7
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Default My last post about the intake!

I'm having my friend who has intalled intakes before (not on subaru) help me install the hybrid intake system for my 2.5i. I have read the stickied thread and purchased the "popular" option racing ebay kit. Since he is the one doing the help and I plan to assist and given directions from the forums with my iphone, It would be appreciated to the fullest if i could annoy some one to give me a step by step installation instruction. PLEASE!!. I ordered the intake about 2 days ago so its got sometime before it gets here, so i wanted to make sure i have all the parts necessary for installation. According to the thread i believe i need hump couplers? If so can someone provide me with the best site available to get them. And something about a T-Valve, somethign along those lines i read i think to connect the vacuum hoses. So if some one could provide with the necessary items i need and step by step instruction id appreciate it. I have a general idea what to do but just not positive about the vacuum hose things. Pics would be very helpful 2!

Lastly sorry for the long post but i also ordered by stromung xa full catback which is coming in like a week, and plan to work on suspension for next year which includes coilover and sways. Then i think my car is done besides maintaining, but i have been reading a few posts something about a romraider ecu reflash, is this worth is this the same like getting a dyno tune i ask because i always wanted to do this but people say not worth it with just a intake and catback. But i believe romraider is opensource which means free correct? a dyno tune by me is like 400 bucks. Is not worth tuning unless i do a full exhaust with cat pipe and headers?.

All answers are greatly appreciated, and please excuse my full lack of car knowledge as you can tell my the rank i have on this site im new to this stuff, thanks!
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Old 07-24-2009, 08:45 AM   #2
deltableh
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If you read the thread about my car, or the thread with important info on intakes, you'll know that any sort of intake, even a hybrid, causes more airflow to the engine. This is how an intake helps unlock power: by leaning it out. However, Subarus already run lean, so if you run an intake, ANY intake other than OEM, I highly recommend having someone at least do a quick, 20 minute tune to make sure you don't knock your car to death.
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Old 07-24-2009, 11:41 AM   #3
yarrgh
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Quote:
Originally Posted by deltableh View Post
If you read the thread about my car, or the thread with important info on intakes, you'll know that any sort of intake, even a hybrid, causes more airflow to the engine. This is how an intake helps unlock power: by leaning it out. However, Subarus already run lean, so if you run an intake, ANY intake other than OEM, I highly recommend having someone at least do a quick, 20 minute tune to make sure you don't knock your car to death.
Whaaa?
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Old 07-24-2009, 11:53 AM   #4
deltableh
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It's something they do now for EPA garbage.

Here's a graph of a Subaru with an intake on it:


That's my car on the dyno with an intake on it. The line that doesn't knock is the line post-tune. Without a tune, notice that wonderful spike and knock?

Last edited by deltableh; 07-24-2009 at 01:01 PM.
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Old 07-24-2009, 12:39 PM   #5
formula91
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Lol that sucks I must admit.
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Old 07-24-2009, 12:43 PM   #6
blckout7
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I thought it wasn't necessary to tune nor worth it with just an intake and catback. Now you have my paranoid about my engine knocking or that I will damage it, was exactly is engine knock
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Old 07-24-2009, 01:01 PM   #7
deltableh
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Quote:
Originally Posted by formula91 View Post
Lol that sucks I must admit.
It only sucks without a tune. With the new map on my car, my car is happy as a clam to have all that more air.
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Old 07-24-2009, 01:54 PM   #8
VIsubi
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basically my hybrid is stock equipment and filter..I still retain the intake box where an intercooler would be but instead of the ribbed plastic tubing I have metal tubing. I tried to keep it as stock as possible with out CEL coming on...is say a intake filter box removal and replaced with a K&N filter really gona throw it lean still.
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Old 07-24-2009, 02:21 PM   #9
blckout7
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hmm, so if were to wait a couple months so i can affford the high flow cat and the headers and then tune is that ok?
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Old 07-24-2009, 04:01 PM   #10
bcware
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i'll go make a video, hold on a few minutes.
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Old 07-24-2009, 04:09 PM   #11
chazly413
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Quote:
Originally Posted by blckout7 View Post
I thought it wasn't necessary to tune nor worth it with just an intake and catback. Now you have my paranoid about my engine knocking or that I will damage it, was exactly is engine knock
Pre-detonation in a cylinder. I.E., it starts combusting before the spark plug goes off.
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Old 07-24-2009, 04:24 PM   #12
KaptainKandy
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Quote:
Originally Posted by blckout7 View Post
I thought it wasn't necessary to tune nor worth it with just an intake and catback. Now you have my paranoid about my engine knocking or that I will damage it, was exactly is engine knock
Your engine won't start knocking yet. Over the long term you may lower the life span of the engine but don't expect it to go KABOOM overnight. I have run a SRI for thousands of miles and have yet to have any engine knock (untuned). If you are really paranoid though run stock until you can tune it yourself OS or have a tuner do it for you.
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Old 07-24-2009, 04:26 PM   #13
bcware
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Old 07-24-2009, 04:29 PM   #14
blckout7
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Damn I would of never thought that I'd damage my engine instantly with an intake and exhaust =(. besides romraider because I'm no car specialist how should I tune. It's odd ive seen so many untuned cars with no problems for years, with an intake and exhaust
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Old 07-24-2009, 04:31 PM   #15
bcware
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If you stick with a hybrid intake you're not going to lean the engine out too much. The hybrid is "safe" compared to anything with a cone filter on it. Something else will kill the engine long before a hybrid will.
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Old 07-24-2009, 04:38 PM   #16
blckout7
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Ty video was awesome
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Old 07-24-2009, 04:43 PM   #17
blckout7
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Ok yea I plan to stick with hybrid, eventually I should get it tuned I wish I knew how to use romraider
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Old 07-24-2009, 04:48 PM   #18
bcware
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There are other ways to tune the car. I would suggest sending Williaty a pm if you are SERIOUS about getting it done. I wouldn't badger him with simple questions because everything in regard to intakes has been asked thousands of times and can be searched for. You want to buy a tactrix cable ideally which is like $170 and when you're ready seek him out.
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Old 07-24-2009, 04:58 PM   #19
blckout7
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Otherwise my choices are to either learn romraider or get it dyno tuned at metric Subaru in Huntington since it's nearby
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Old 07-24-2009, 05:00 PM   #20
bcware
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Williaty mentioned to me that learning to tune with rom raider WELL is going to require an intense 6 months of study before you really know what the hell you're doing.

If pro tuning is an option you might consider it, but the alternatives are probably a lot cheaper. You need to find out what they charge for a tune (most seem to be around $500 now), if they have experience with non-turbo subarus and what they use to tune the car. Depending on what they use you may be forced to buy an access port which is $700 plus the cost of the tune.

Having someone else open source tune your car is more like $170 for the cable and around $50 for the tune.
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Old 07-24-2009, 05:11 PM   #21
blckout7
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The best bet would be to go to the tristate forum since i'm new York and find some one who can OS tune right
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Old 07-24-2009, 05:45 PM   #22
blckout7
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Well my very last question is I understand every car is different and you can't tell the future, but I'm putting the hybrid and the exhuast on like 2 weeks will my car be okay until like next summer without a tune?, about to go back to college funds are a bit low or should I wait to put intake in
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Old 07-24-2009, 06:21 PM   #23
bcware
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Yes, your car will be just fine, you will just benefit less. Other people are correct in pointing out that ANY intake on these cars is going to cause a lean condition, but don't get too hung up on it with the hybrid intake. The exhaust is not going to hurt you in any way unless your piping is too large and can help by maybe adding power, but definitely shedding weight.

If you want to be really frugal find someone who will let you borrow a tactrix cable. I would just be careful who you allow to tune your car. Get references! You can easily do it through the internet, so there is no need to stay local. A remote tuner can download your data, modify it, and email it back. I would think you would simply use something like crc32 to maintain file integrity.
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Old 07-24-2009, 07:04 PM   #24
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Read this.... Know it backwards and forwards in Chinese and underwater while making baskets.

http://forums.nasioc.com/forums/showthread.php?t=477393
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Old 07-24-2009, 07:06 PM   #25
blckout7
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Thanks man you've been a great help, on a quicknote if I don't tune car for like 2 years is that ok? I'm taking good care of it synthetic oil every 3k miles if that helps
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