S2KI Honda S2000 Forums - A real back to back of the bc cams...

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S2KI Honda S2000 Forums (https://www.s2ki.com/forums/)

- S2000 Naturally Aspirated Forum (https://www.s2ki.com/forums/s2000-naturally-aspirated-forum-213/)

- - A real back to back of the bc cams... (https://www.s2ki.com/forums/s2000-naturally-aspirated-forum-213/real-back-back-bc-cams-986274/)

stonesilverap2

10-26-2012 06:33 AM

I'm beginning to wonder if I should have placed this in the s2000 talk section or something also or instead of here.

ga s2000 man

10-28-2012 06:38 PM

So the BC cam's Do make power. Kool

Gernby

10-31-2012 08:00 AM

Quote:

Originally Posted by Croc (Post 22108420)

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:

https://sites.google.com/site/crocwe...res/edyno1.jpg

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.

Croc	10-31-2012 01:17 PM

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....

Gernby

11-01-2012 06:18 AM

Quote:

Originally Posted by Croc (Post 22121462)

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.

bbd324

10-01-2013 08:47 AM

Anyone know where the redline on an ap1 would be after installing the bc stage 2 cams?

wadzii

10-01-2013 10:08 AM

when i tested the bc2 vs stock my car had similar gains and the tune didnt change at all.

blasphemy101

10-01-2013 10:10 AM

Quote:

Originally Posted by bbd324 (Post 22805609)

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.

Requiem

10-03-2013 08:02 PM

Can I run Super Tech valve train with BC2 cams or does it need to be Brain Crower valve train?

wadzii

10-04-2013 04:33 AM

I use the supertech beehive springs for all motor setups. You dont need 100lbs on the seat for NA.

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