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A real back to back of the bc cams...

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A real back to back of the bc cams...

 
Old 10-26-2012, 06:33 AM
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I'm beginning to wonder if I should have placed this in the s2000 talk section or something also or instead of here.
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Old 10-28-2012, 06:38 PM
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So the BC cam's Do make power. Kool
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Old 10-31-2012, 08:00 AM
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Originally Posted by Croc View Post
i've got those.
my engine is F20C2 with all possible bolt on mods and a tune (vtec at ~5600)
could drove only ~20 miles but the car definitely felt punchier at 4-4.5k and up in high gears.
3rd gear is strong all around.
the top end felt somewhat rough. maybe becuase quite significant increase in engine noise.

looking at logs and Gernby's soft dyno the top end looks not smooth:



maybe after all keeping stock valve springs is not enough and valves float indeed....
Soft dyno plots naturally get less smooth as the RPMs rise, since the calculated engine RPM becomes less accurate. You should just adjust the smoothing settings on the spreadsheet to reduce the "noise" in the plot.
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Old 10-31-2012, 01:17 PM
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thanks for chiming in !!!!
what's the OK range of values?
with smoothing at 200 it looks pretty good.
with 250 it's almost perfect....
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Old 11-01-2012, 06:18 AM
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Originally Posted by Croc View Post
thanks for chiming in !!!!
what's the OK range of values?
with smoothing at 200 it looks pretty good.
with 250 it's almost perfect....
It's been so long since I've used the Excel based soft dyno that I don't even remember what smoothing values I used. One thing you can do to improve the smoothness is to choose a very smooth / flat road with some incline, and load up your trunk with a known amount of weight. This will increase the number of samples per pull by increasing the load time.
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Old 10-01-2013, 08:47 AM
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Anyone know where the redline on an ap1 would be after installing the bc stage 2 cams?
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Old 10-01-2013, 10:08 AM
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when i tested the bc2 vs stock my car had similar gains and the tune didnt change at all.
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Old 10-01-2013, 10:10 AM
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Originally Posted by bbd324 View Post
Anyone know where the redline on an ap1 would be after installing the bc stage 2 cams?
As long as the valves aren't floating, like one earlier poster may suspect, you *shouldn't* need to change your rev-limit. BC seems to consider these a "drop-in" upgrade. They *shouldn't* cause any kind of piston-valve contact on an internally stock motor.
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Old 10-03-2013, 08:02 PM
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Can I run Super Tech valve train with BC2 cams or does it need to be Brain Crower valve train?
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Old 10-04-2013, 04:33 AM
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I use the supertech beehive springs for all motor setups. You dont need 100lbs on the seat for NA.
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