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Old 09-14-2001, 12:00 PM   #1
Puckaveli
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Question Comparison shopping. Cobb vs ? for all motor performance.

I have a my00 RS, and I have decided to go all motor for engine performance. Are there any other manufactures of heads, cams and such besides Cobb. I have seen MRT's stuff but I get the impression they are mainly for the EJ20 turbo boys. Thanks ahead of time.
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Old 09-14-2001, 12:12 PM   #2
Midwayman
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Paeco.
They supposedly have alot of stuff, but I dont know of any first hand accounts of people using it, but someone who heard of someone who was using it.
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Old 09-14-2001, 01:02 PM   #3
iodine23
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I'm not sure if Graham Goode carries stuff for NA EJ25's or not. I remember seeing a big list of stuff ion their site.
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Old 09-14-2001, 01:56 PM   #4
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I understand your need to do research so check with these others in addition to Cobb Tuning and Paeco:

B-Spec USA
Outback Motorsports (they might be turbo-only but I thought they did offer NA buildup)

But after that legwork is done, I think you'll get the best product and the best service from Cobb Tuning. Trey will deliver it when he says he will, and if it can't be done soon he'll tell you. Plus they have a great deal of knowledge.

I would imagine an established engine builder specialist could outperform them if you had a very specific goal in mind (endurance racing, etc.) and a big budget but for street performance and reasonable money I don't think Cobb Tuning's knowledge or professionalism can be beat.
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Old 09-14-2001, 07:25 PM   #5
yamarocket630
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Trey Cobb is the MAN! He's gonna be getting a big chunk of my money soon. (ie all of it)
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Old 09-14-2001, 09:53 PM   #6
kturner
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Default Heads/Cams?

Does anyone have actual experience with Cobb heads and cams in their Phase II 2.5? I am very interested in more overall torque especially around 3,000 rpm. Before I shell out the money and, more importantly, tear up a new car, I need to be sure I will be impressed with the results. Turbos seem iffy with respect to ECU and CEL issues.
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Old 09-15-2001, 12:03 AM   #7
ATX25RS
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Try posting a similar Question in the Texas Forum, a lot of the guys down here have got some experience with Trey. AndresRS01 is pretty totally Cobb engine.

Andres
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Old 09-15-2001, 02:05 AM   #8
Midwayman
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Well several people have the both the cams and the heads. IMHO I dont really think the heads are worth 2g's The cams however represent a pretty good deal performance wise. I really wonder what the output of the car is with stage I cams vs stage I cams +heads.

Considering Cobb dynoed a RS with intake, UDP, headers, and catback exhaust @ 192hp I would guess that with cams, that would push over 200. Now I know the stage III package which has cams+stage I heads + high flow cat is supposed to be between 215-225. say the stage 1 cams give 1/2 their peak additional gain to the 192, thats 200 dead on.
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Old 09-15-2001, 05:00 AM   #9
slamck
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Everyone who has the Cobb CAM is happy with the power gain, myself included.
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Old 09-15-2001, 12:43 PM   #10
Texas25RS
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Talking Cobb Heads

Yes the Cobb heads are expensive, but talk to ANY NA motor builder and ask them about flow out of typical stock heads. The flow on our head suck compared to a nicely worked set. If you don't want to pay Cobb, you can always find a good machine shop and have them do some head work, but since Trey (Cobb) has been working with Subarus exclusively for a while now, I would shell out the $2500 for the Stage 2 to get the upgrade valve springs as well.....
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Old 09-16-2001, 01:44 AM   #11
Midwayman
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Yah, I know the heads are important for peak power gains, just saying that I really dont know they are worth 2k (power vs money) until you start going extreme with NA.
FWIW
People who have em seem happy with them though. I think Cobb does top notch work. (this is where people start saying go turbo because of the money vs power curve)
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