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Old 06-13-2008, 08:37 PM   #1
Scooby Newbie
Member#: 78618
Join Date: Jan 2005
Default bc valvetrain or bc cam and supertech springs and valves

I am trying to decide between a set of brian crower stg 2 cams, valves, single springs or brian crower stg 2 cams, supertech valves and dual springs. This is going to go on a axis street series 2.5l block with forged pistons and stock rotating assembly. I am going to go with a sz55 or a 30r but right now here is what I have:
2005 wrx with a 2.5l stage 2 raw/axis motor (forged pistons) 7200 rpm limit
wrx heads P&P by crucial with +1mm in/ex valves valves not purchased or installed yet
P&P vf-48 by crucial
synic equal length header
crucial uppipe/38mm tial ewg
crucial dp
crucial catless midpipe
erz catback
ssac fmic crucial coated with thermal dispersant coating
aps dual vent bov
gimmick crank pulley
gimmick afta maf/turbo inlet hose
cobb sf intake
spec-c tgv deletes
750cc dw injectors, gmbcs

I know the turbo is way little for this setup but I had the heads off and decided to let crucial go to work on them. I want this to be the last time the motor has to be taken out of the car.

BC setup is 119 dollars cheaper than BC/supertech and ron at raw/axis says that the bc springs are a bit light but he can shim them to make them more taught
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Last edited by LoganG1K; 06-13-2008 at 08:46 PM. Reason: prices
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Old 06-14-2008, 05:12 PM   #2
Sammo Hung
Member#: 10613
Join Date: Sep 2001
Chapter/Region: South East
Location: S Ga / N Fla


i would follow cam manufacturer's recommendation as
far what valve springs you need. but stage 2 does not
require double valve springs.
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Old 06-15-2008, 08:23 PM   #3
Scooby Newbie
Member#: 150837
Join Date: Jun 2007
Chapter/Region: NWIC
Location: Lake Stevens
2006 Legacy GT


Supertech springs all the way. The BC springs aren't very good. They aren't much stiffer than the stock springs. I'm sure if you looked around you could find some threads covering the BC springs and their pressures.
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Old 06-16-2008, 11:21 AM   #4
Homemade WRX
Scooby Guru
Member#: 33782
Join Date: Mar 2003
Chapter/Region: MAIC
Location: Mooresville, NC
96 3MI Racing LLC
search FIRST, then PM!!!


looking at the spring rates again after having talked with dom, I started doing some comparisons between companies...the BC's really aren't that bad. A great bang for the buck, but if you are going a little on the crazy side for boost or cam, I'd recommend a higher spring rate.
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Old 06-16-2008, 11:42 AM   #5
Scooby Newbie
Member#: 78618
Join Date: Jan 2005

here are the cam specs: Adv. Dur.: 272/272 Dur @ .050: 222/222 Lift (in): .400"/.400" 10.16/10.16: 10.16/10.16. Red line isn't going to be over 7500rpm. The turbo will be a superzilla 55 or maybe if I have some spare money a 30r.
I have pretty much talked myself into the supertech setup. It's only $120 more.
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