Blower cam
Pro
Joined: Jan 2012
Posts: 580
Likes: 15
cam motion
I've ran a few comp cams and they were ok, but currently have a cam motion blower stage 3 and absolutely love it... The valve train noise is less then half of what the comp cams were and this cam is so smooth to rev... LS2 with A&A v3 t-trim @ 11 psi... 722rwhp 654rwtq when @ 9 psi...
Grind# XA234/360-XA246/350-16+4
Duration at .050 - 234/246
Lift with 1.7 - .612/.595
Lobe separation 116
Intake center line 112
Cam Timing Events:
Intake Valve Open: 5 BTDC
Intake Valve Close: 49 ABDC
Exhaust Valve Open: 63 BBDC
Exhaust Valve Close: 3 ATDC
Overlap: 8 degrees at .050br> Usable RPM Range 2200-6800
Grind# XA234/360-XA246/350-16+4
Duration at .050 - 234/246
Lift with 1.7 - .612/.595
Lobe separation 116
Intake center line 112
Cam Timing Events:
Intake Valve Open: 5 BTDC
Intake Valve Close: 49 ABDC
Exhaust Valve Open: 63 BBDC
Exhaust Valve Close: 3 ATDC
Overlap: 8 degrees at .050br> Usable RPM Range 2200-6800
Le Mans Master
Joined: Apr 2011
Posts: 7,820
Likes: 411
From: Montreal
St. Jude Donor '13
Originally Posted by darknit
I've ran a few comp cams and they were ok, but currently have a cam motion blower stage 3 and absolutely love it... The valve train noise is less then half of what the comp cams were and this cam is so smooth to rev... LS2 with A&A v3 t-trim @ 11 psi... 722rwhp 654rwtq when @ 9 psi...
Grind# XA234/360-XA246/350-16+4
Duration at .050 - 234/246
Lift with 1.7 - .612/.595
Lobe separation 116
Intake center line 112
Cam Timing Events:
Intake Valve Open: 5 BTDC
Intake Valve Close: 49 ABDC
Exhaust Valve Open: 63 BBDC
Exhaust Valve Close: 3 ATDC
Overlap: 8 degrees at .050br> Usable RPM Range 2200-6800
Grind# XA234/360-XA246/350-16+4
Duration at .050 - 234/246
Lift with 1.7 - .612/.595
Lobe separation 116
Intake center line 112
Cam Timing Events:
Intake Valve Open: 5 BTDC
Intake Valve Close: 49 ABDC
Exhaust Valve Open: 63 BBDC
Exhaust Valve Close: 3 ATDC
Overlap: 8 degrees at .050br> Usable RPM Range 2200-6800
I'm not debating who makes a better cam, only saying a comp with the same specs would run the same.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
Before you guys appropriate all of the good cam names, please allow me to reserve "The Undercover Zombie Executioner". It's a stealth cam. Call BR-549 for specs. That's actually Junior Samples' old phone number, but since he's no longer with us. Mine now 
Advanced
Joined: Apr 2018
Posts: 97
Likes: 0
From: tampa FL
Cam
Are you sure the ecs big blower cam has lift under 580? Or is it the ecs small blower?
It's an ECS Big Blower cam. Looked at their standard blower cam and didn't buy it for the "moderate idle" spec. I have their specs from the box it cam in (custom Comp Cam grind) but don't want to post them since they are pretty secretive about it but basically it's around 230, LSA 115, lift under .580". Pretty easy on parts and easy to tune since it's the same LSA as a stock LS3. I can lug the motor under 2000 RPM and it's still smooth. I have a stock bottom end LS3 and put the cam in with the blower and the car pulls very hard after 3500. Totally smoked the run flats anytime you punch it over 3000
Burning Brakes
Joined: Jul 2016
Posts: 853
Likes: 57
From: Joisey
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Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,150
From: SW Florida
2021 C6 of the Year Finalist - Modified
With lift at .580" or less, the valve springs should last a very good long time.
Look at the specs of the OEM LS9 cam:
Dur: 211° / 230°
Lift: .562” / .558”
LSA: 122° - 0°
ICL: 122°
Overlap: - 23°
_______________________________
If I was to change out the cam in my LS3 with 'Heartbeat' SC, I think I would use the following cam specs:
Dur: 218° / 230°
Lift: .585” / .585”
LSA: 118° +2°
ICL: 116°
Overlap: -12°
Look at the specs of the OEM LS9 cam:
Dur: 211° / 230°
Lift: .562” / .558”
LSA: 122° - 0°
ICL: 122°
Overlap: - 23°
_______________________________
If I was to change out the cam in my LS3 with 'Heartbeat' SC, I think I would use the following cam specs:
Dur: 218° / 230°
Lift: .585” / .585”
LSA: 118° +2°
ICL: 116°
Overlap: -12°
Le Mans Master
Joined: Jan 2009
Posts: 5,656
Likes: 112
From: ocean springs mississippi
Geoff makes the cams, Pat G specs what to make
I ordered from cam motion with pat g's specs on a Thursday and had the cam in my hands the following Wednesday. Hard to beat a custom cam, in my hands, in a matter of days.
Can't really see any reason to buy one off the shelf when service like that is available for almost nothing extra.
http://www.guerragroup.com/camshaft-help
I ordered from cam motion with pat g's specs on a Thursday and had the cam in my hands the following Wednesday. Hard to beat a custom cam, in my hands, in a matter of days.
Can't really see any reason to buy one off the shelf when service like that is available for almost nothing extra.
http://www.guerragroup.com/camshaft-help
I'm torn between a custom speced cam (btr/pat g) or the ccp jam cam which is very capably proven (love the sound too)
Burning Brakes
Joined: Aug 2010
Posts: 1,222
Likes: 52
From: Honolulu Hawaii
Let me upload my pics. from cell phone to my laptop.I have some sound clip on the ccp stage2 blower cam..Spec 226/238 605/615@115lsa.