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Old 06-27-2008, 10:12 PM   #1
methaddict
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Can anyone running these cams please tell us how the power band has changed. Please post the turbo, engine setup such as 2.5, 2.0, stroker, what other head work performed if any, and changes in shift of power band. I just ordered these cams with the 70 lbs @ 35.5 seat Supertech daul valve spring kit including ti retainers and alloy spring seats.
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Last edited by methaddict; 06-27-2008 at 10:24 PM.
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Old 06-27-2008, 10:48 PM   #2
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i have a full BC 272 setup, with BC valvetrain also. Going on my built, high compression 35r setup. Should be running within a month.
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Old 06-28-2008, 12:51 AM   #3
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How's the quality of the BC stuff? I've seen people say it's really nice, and others have said they wouldn't use it.
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Old 06-28-2008, 01:23 AM   #4
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Quote:
Originally Posted by MannyMohawk#5 View Post
How's the quality of the BC stuff? I've seen people say it's really nice, and others have said they wouldn't use it.
I've heard both also. I will wait to see what the final verdict is before I decide to use any of it. I will stick with proven names for the time being.
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Old 06-28-2008, 01:27 PM   #5
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I had them in my 02 WRX, I didnt get to drive it for very long before I got hit head on. But I will say that the powerband was NICE. Lumpy as hell idle, but I think that was more from the thicker head gaskets. It sounded like a 60s muscle car (for real, lump lump lump)
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Old 06-28-2008, 10:35 PM   #6
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Buddy of mine has them and says they're very much worth it. I'm rebuilding my motor with these cams too, should be done in about 5 more weeks.
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Old 06-28-2008, 11:06 PM   #7
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im buying them as well for my build.. glad to hear good things about them
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Old 06-29-2008, 10:16 AM   #8
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They're waiting to be installed in my 2.0 heads for my hybrid build. I also chose the BC spings/retainers and BC stainless .5mm over valves. My valves are all flat face, which should help keep compression up since I'm opening up the chambers to match the 2.5 bore.

What I can't figure out is how to match the turbo to them. I want a turbo that'll maintain power at 7500 rpm. Will these cams let a smaller turbo produce more power at high RPM, or will they make it harder for a small turbo to keep up and require a larger turbo?
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Old 06-29-2008, 04:47 PM   #9
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You will need a larger turbo. With more air coming through cams will run a small turbo out of breath faster.
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Old 06-29-2008, 05:19 PM   #10
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Quote:
Originally Posted by axelthrasher View Post
I've heard both also. I will wait to see what the final verdict is before I decide to use any of it. I will stick with proven names for the time being.
you must not have been around cars for very long...Brian Crower has been around for a loooooooong time, they know what they are doin. they have been making cams since the early 70's if not longer!! youve never heard of crower cams??
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Old 06-29-2008, 05:28 PM   #11
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you must not have been around cars for very long...Brian Crower has been around for a loooooooong time, they know what they are doin. they have been making cams since the early 70's if not longer!! youve never heard of crower cams??
You are thinking of Crower cams....not Brian Crower. Brian Crower is the son of the owner of Crower cams. Crower mostly focuses on non-imports and Brian focuses mostly on imports (although both do have some options in both fields). Brian Crower is fairly new.....compared to Crower.
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Old 06-30-2008, 11:21 AM   #12
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BC says it'll move the power band to the right 500-800rpm with hp gains of 30hp
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Old 06-30-2008, 11:37 AM   #13
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Delta has these profiles for way le$$
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Old 06-30-2008, 11:41 AM   #14
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Delta has these profiles for way le$$
Links to proven results and people using them?
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Old 06-30-2008, 02:30 PM   #15
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Links to proven results and people using them?

6 months from now when my eg33 is running, I will post results from these guys. They are the real deal.
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Old 06-30-2008, 02:34 PM   #16
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Quote:
Originally Posted by CoolRex View Post
You are thinking of Crower cams....not Brian Crower. Brian Crower is the son of the owner of Crower cams. Crower mostly focuses on non-imports and Brian focuses mostly on imports (although both do have some options in both fields). Brian Crower is fairly new.....compared to Crower.
its his son, you dont think he knows about cams? thats the point i was making, he is not a newbie to cams, they just branched out into another division
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Old 06-30-2008, 02:36 PM   #17
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its his son, you dont think he knows about cams? thats the point i was making, he is not a newbie to cams, they just branched out into another division
Still not the same. I've seen BC cams snap in half in person but I personally think that was due to an install error by one of the shop guys.
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Old 06-30-2008, 03:14 PM   #18
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Quote:
Originally Posted by bluescoobywagon View Post
They're waiting to be installed in my 2.0 heads for my hybrid build. I also chose the BC spings/retainers and BC stainless .5mm over valves. My valves are all flat face, which should help keep compression up since I'm opening up the chambers to match the 2.5 bore.

What I can't figure out is how to match the turbo to them. I want a turbo that'll maintain power at 7500 rpm. Will these cams let a smaller turbo produce more power at high RPM, or will they make it harder for a small turbo to keep up and require a larger turbo?
I experimented with big cams and head work and small turbo and found that when the turbo is out of air all the cams and headwork in the world won't make up for it. I can post up more data when I get off work later but my setup is Cosworth cams, DPR heads, and a Greddy 18G. Its fun but the turbo is way out of effeciency range shortly after 5K rpms.

And here is a link: http://forums.nasioc.com/forums/show....php?t=1475015

Last edited by kellygnsd; 06-30-2008 at 03:35 PM.
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Old 06-30-2008, 05:27 PM   #19
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Quote:
Originally Posted by Defiant Autospeed View Post
I had them in my 02 WRX, I didnt get to drive it for very long before I got hit head on. But I will say that the powerband was NICE. Lumpy as hell idle, but I think that was more from the thicker head gaskets. It sounded like a 60s muscle car (for real, lump lump lump)
Non AVCS cams are going to be much lumpier than AVCS cams of the same duration because they have more overlap at idle. The HG doesn't have anything to do with it.
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Old 06-30-2008, 06:14 PM   #20
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Quote:
Originally Posted by kellygnsd View Post
I experimented with big cams and head work and small turbo and found that when the turbo is out of air all the cams and headwork in the world won't make up for it. I can post up more data when I get off work later but my setup is Cosworth cams, DPR heads, and a Greddy 18G. Its fun but the turbo is way out of effeciency range shortly after 5K rpms.

And here is a link: http://forums.nasioc.com/forums/show....php?t=1475015
Very useful information! Did you upgrade your turbo yet? I'd love to see a 3rd line with an upgraded turbo and no other changes. It's interesting that the cams can increase high rpm power, but only if the turbo can flow it. At redline your cams and headwork only gave you a couple horsepower, but in the midrange you picked up 40 or so hp!
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Old 06-30-2008, 07:17 PM   #21
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I was looking at the ATP 3076 but they told they would be releasing the 3076 with a new integral Tial wastegate flanged hotside. I may wait for that.
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Old 06-30-2008, 08:09 PM   #22
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Dont mistake (Crower) with (BrianCrower) two totally different companies.
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Old 07-01-2008, 09:20 AM   #23
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Quote:
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Dont mistake (Crower) with (BrianCrower) two totally different companies.
^^^^Already said that above.
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Old 07-01-2008, 03:02 PM   #24
methaddict
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Well it seems no one has it in their cars yet?
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Old 07-01-2008, 03:05 PM   #25
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Quote:
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Still not the same. I've seen BC cams snap in half in person but I personally think that was due to an install error by one of the shop guys.
Had a friend recently with BC cams -- one had snapped in half within the first 300 miles -- don't think it was install error.
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