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Old 05-01-2003, 10:30 PM   #1
Imprezive2002
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Talking Is it easy to change the cams in the 2.5RS Impreza i need details thanks

whats up im lookin to put new cobb racing cams in my car anyone ever do it is it gonna be a drag to do or what.. not sure im asking this way i know for when i get them thanks
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Old 05-01-2003, 11:17 PM   #2
nySulli
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from the looks of it putting in the cobb racing cams you'll need to do some head work to, your best bet would be to go with the club racer or stage 1 cams unless you've got a bunch already done
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Old 05-02-2003, 07:59 AM   #3
Corey
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I changed my cams myself a few months back. I went from the Cobb cams, back to the stock ones. The swap took me and a friend (Subaru mechanic also) about 7-8 hours, without air tools. It wasn't too bad to do, it just takes a long time. Especially because I am so anal about working on my car. If we did it again, we could probably do it in 6 hours or less.

Just make sure to get all of the torque specs before you start, that's the most important part.

Corey #89 STS
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Old 05-02-2003, 10:24 AM   #4
codger
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Quote:
I changed my cams myself a few months back. I went from the Cobb cams, back to the stock ones.
I'm curious why you swapped back, and what cams you had mild or spicy? Did you have too many CEL's?

Jim
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Old 05-02-2003, 10:28 AM   #5
DanzBorin
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Quote:
Originally posted by codger


I'm curious why you swapped back, and what cams you had mild or spicy? Did you have too many CEL's?

Jim
see his signature... you can't run cams in STS... he was probably trying to stay out of SM...
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Old 05-02-2003, 01:33 PM   #6
Corey
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Exactly!

I put the cams in before I got real serious about Auto-X... I competed in SM for a year, but there was no way that I could be competitive on a National level with just cams...

So I took them out. Now I'm STS legal.

Corey #89 STS
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Old 05-02-2003, 02:36 PM   #7
codger
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sorry, I've never autocrossed, so didn't notice the sig. How did you like the cams? Nice power increase, more than header/exhaust, less?

I might eventually put in something like the Cobb street cams, but I need to find out more, see how they compare to JA or TWE cams.

(sorry for the thread hijack Imprezive2002)

Jim
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Old 05-09-2003, 09:18 AM   #8
Imprezive2002
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yea i just wanna know how to install the cams need detail thanks
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Old 05-11-2003, 09:07 PM   #9
DDMan
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bump for more info...how hard would it be for someone who is pretty mechanically inclined...with or without help?

Do you have to remove the engine?
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Old 05-12-2003, 03:28 AM   #10
scotty305
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http://techinfo.subaru.com << you can purchase factory service manuals here, $20.00 for a 3-day subscription to all the .PDF files for all subarus.

The MY2000 Impreza manual contains about 700 .pdf files...
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Old 05-12-2003, 12:16 PM   #11
Imprezive2002
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but was it easy to install the cams? if you had them installed thanks
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Old 05-12-2003, 08:04 PM   #12
scotty305
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I haven't tried installing cams.

Your definition of easy will not be the same as everyone else's. I replaced the timing belt on my '86 Honda, and found it to be a pain in the butt. A cam install is delving very deep into the heart of the engine, in my opinion. I would be afraid to mess things up. I would definitely have someone who's done it before helping me, that's for sure. I would think very hard about having a shop do the work for me.


-s-
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Old 05-12-2003, 09:29 PM   #13
DDMan
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Hmmm, easy or not, for me it would depend on what I would have to get done...

I mean, if its all bolt off and bolt back on...thats easy...but if there is timing involved or anything like that...it would be a little more advanced..

Someone out there has to have cams and knows how to install them....Maybe Ill e-mail cobb.
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Old 05-12-2003, 10:10 PM   #14
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HndaTch627, and Hondaslayer are both extemely knowledgable with Subaru engines, installing cams, and are really cool people. Try asking them for quick advice. The one thing I'd tell you is that a Subaru engine is not like every other engine out there. Personally, even if I knew what I was doing, I'd still take the time to have someone with experience walk me through the install at least once.
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Old 05-13-2003, 10:36 AM   #15
Jack
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Impressive.....

Some things to consider: Call Cobb and describe your mechanical ability and background and ask them if they think you can do the install yourself. If this is your only vehicle, then I'd say no. I considered doing this install in my own RS and decided it was more than I wanted to get into. If you mess up, you'll likely be looking for a new engine. I've got the garage space, 3 other cars to drive and have built a race car in my garage. A cam in a subie isn't like a cam in a Ford 302 (I've done one of those), where you really have to try to mess up. Also, look at this post again....2 experienced mechanical guys with the manual took 8 hours. If this were me, I'd plan on 20 hours down time.

If you do decide to tackle it, have a plan B ready. Someone who you can flat bed the car into to finish the job if needed.

my $0.02

jack
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Old 05-13-2003, 08:15 PM   #16
jdk
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The skill level involved in replacing cams is 'bout the same as tearing the engine completely down and rebuilding,alot less time though. W/ engine still in car definetly not recommended w/ no previous experience.
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