J-Brooks

Trying to decide on cams for my motor. So far as it seems higher horsepower motor like higher lift and longer duration but I am sure that is only true to a certain extent. Due to the scarcity of ctr cams and the ease of scamming someone I was looking to purchase new cams from somewhere. I was looking into something similar to a skunk2 stage 1. Just wondering what effect I would have due to the increased duration. The lift is almost the same.

HERE ARE THE SPECS OF THE TWO CAMS
Skunk2 Stage 1:
INTAKE lift- 11.58 mm, duration 252 @ 1mm
EXHAUST lift - 10.9 mm, duration 249 @ 1mm

CTR:
INTAKE lift - 11.5mm, duration - 243 @ 1mm
EXHAUST lift - 10.5 mm, duration - 235 @ 1mm


Also if anyone has any experience, information, dynos of boosted motors with cams OTHER than GSR, ITR, or CTR cams please post.
Thanks.

EDIT: If my motor setup will help it is

Golden Eagle HD Sleeved 84mm b16
ITR Crank
B17 Spec custom pauter rods
Custom CP pistons 9.0:1
ATI Dampner

GSR Head
OMNI SS Valves
Comp Steel Retainers and Valvesrpings
Ferrea Bronze Valve Guides

Turbo: Undecided GT35R or Full-Races GT3567R

Looking for mid to upper 400's pump gas and somewhere around 600+/- race.

turboEGhatch

More duration = more top end power, but you might have to fiddle with the cam gears. My car pulls noticeably harder with Blox B's than it did with GSR cams

J-Brooks

what are the specs of blox b's? How did the rest of your powerband change.

turboEGhatch

Blox B's are the same as Skunk2 Stage2 cams. So 266/262 duration at 1mm on 12.3/11.8 mm's of lift. I never dyno'ed back-to-back after the cam swapout, but on the butt dyno it doesn't feel any softer on the low end (as I think the primary lobes are the same as stock GSRs or maybe ITRs on these cams) but the pull as soon as you hit VTEC is much harder, and it seems to hold onto torque better than my friends ITR cammed setup.

J-Brooks

Interesting. I'd love to see some dyno comparisons if anyone has anything.

HiProfile

You'd have to search with some odd strings, but I know I've seen it (within the last 6 months). It was titled something to the effect of "effect of cams with turbo". I think it was a ~500whp b18, and at the same psi (both cams tuned) picked up 75whp from higher lift/longer duration cams.

Spend some time searching, I think it may be exactly what you'll want to read.


btw: from my own link archive - https://honda-tech.com/zero...39119. All motor, yes, but deals with power diff. between a few types of cams.

turboEGhatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote">You'd have to search with some odd strings, but I know I've seen it (within the last 6 months). It was titled something to the effect of "effect of cams with turbo". I think it was a ~500whp b18, and at the same psi (both cams tuned) picked up 75whp from higher lift/longer duration cams.

Spend some time searching, I think it may be exactly what you'll want to read.


btw: from my own link archive - https://honda-tech.com/zero...39119. All motor, yes, but deals with power diff. between a few types of cams.</TD></TR></TABLE>

https://honda-tech.com/zerothread?id=1333221

Is that the thread you're thinking of?

dome

iTrader: (1)

blox and skunks cams are the same. just blox is cheaper...

KeyserSoze

I will be running some crane stg II n/a cams in my turbo car, got them for a good price on ebay a while back. I'll let you know how they run here in the next few weeks when I hit the dyno.

Here are the specs....
Stage II Cranecams
Primary Lobe Advertised Duration Intake/Exhaust 225 / 225
Secondary Lobe Advertised Duration Intake/Exhaust 245/ 245
VTEC Lobe Advertised Duration Intake/Exhaust 272 / 266
Primary Lobe Duration @ .050 Intake/Exhaust 200 / 200
Secondary Lobe Duration @ .050 Intake/Exhaust 220 / 220
VTEC Lobe Duration @ .050 Intake/Exhaust 248 / 242
Primary Lobe Separation 108 / 108
Secondary Lobe Separation 108 / 108
VTEC Lobe Separation 102 / 108
Primary Lobe Gross Lift 315/315
Secondary Lobe Gross Lift 354/354
VTEC Lobe Gross Lift 472/457

J-Brooks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboEGhatch &raquo;</TD></TR><TR><TD CLASS="quote">

https://honda-tech.com/zerothread?id=1333221

Is that the thread you're thinking of?</TD></TR></TABLE>

Yea I remember that one from a while back. Thanks for the information.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KeyserSoze &raquo;</TD></TR><TR><TD CLASS="quote">I will be running some crane stg II n/a cams in my turbo car, got them for a good price on ebay a while back. I'll let you know how they run here in the next few weeks when I hit the dyno.

Here are the specs....
Stage II Cranecams
Primary Lobe Advertised Duration Intake/Exhaust 225 / 225
Secondary Lobe Advertised Duration Intake/Exhaust 245/ 245
VTEC Lobe Advertised Duration Intake/Exhaust 272 / 266
Primary Lobe Duration @ .050 Intake/Exhaust 200 / 200
Secondary Lobe Duration @ .050 Intake/Exhaust 220 / 220
VTEC Lobe Duration @ .050 Intake/Exhaust 248 / 242
Primary Lobe Separation 108 / 108
Secondary Lobe Separation 108 / 108
VTEC Lobe Separation 102 / 108
Primary Lobe Gross Lift 315/315
Secondary Lobe Gross Lift 354/354
VTEC Lobe Gross Lift 472/457
</TD></TR></TABLE>

Definitely post back with your results.