flow chart

07 STROKER · May 15th, 2009, 03:04 PM

Can someone who understands this analyse this compared to a stage 2 head from livernois?

This is for the heads they are sending me.

Thanks,

Towelly · May 15th, 2009, 03:05 PM

Whats the max lift of the cams your going to be running? At .600 lift the heads will flow roughly 290 CFM on the Intake side and 193 on the exhaust side. CORR CFM is corrected CFM IIRC. So figure out what your cams max lift is then look at that chart to see where your going to be.

On the left hand side the .XXX number is what the intake/exhaust ports flow at that height of lift. Port is what side. Intake or exhuast... I miss anything?

07 STROKER · May 15th, 2009, 03:07 PM

my cams are 127200 comp nsr's

07 STROKER · May 15th, 2009, 03:08 PM

COMP Cams® - Cam Details

tribaltek · May 15th, 2009, 03:10 PM

You're building a whole damn engine and going with NSR's?

07 STROKER · May 15th, 2009, 03:11 PM

Im doing some grunt work for Rich with these cams before I upsize.

Towelly · May 15th, 2009, 03:11 PM

The max lift on those cam's according to Comp's website is .450. So somewhere in between the .400 and .500 lift is where your going to be flowing on that chart. So somewhere in the 270 CFM range on the intake side and 170 CFM range on the exhaust side. Roughly.

07 STROKER · May 15th, 2009, 03:12 PM

sooooo.....these flow worse - as good- or better than stage 2's?

Towelly · May 15th, 2009, 03:13 PM

Originally Posted by 07 procharger

sooooo.....these flow worse - as good- or better than stage 2's?

Stage 2 what?

07 STROKER · May 15th, 2009, 03:14 PM

livernois stage 2 heads.

07 STROKER · May 15th, 2009, 03:15 PM

New - Livernois Motorsports - CNC Stage 2 Ford 4.6L 3-Valve Cylinder Heads

Towelly · May 15th, 2009, 03:16 PM

Better. By about 7 CFM at max lift... Can't tell your what they would flow with those cams because I don't they don't have a spec sheet listed for them (Stage II heads) on the website. Just shows max numbers.

07 STROKER · May 15th, 2009, 03:18 PM

how are you figureing this out?

Towelly · May 15th, 2009, 03:22 PM

Ok.. See where it says lift? Below that is the hieght the valve is raised. .600 being the highest they tested the flow at. This is the MAX lift. Now, under CORR CFM. Under that column is the amount of CFM flowing through the port at the corresponding amount of lift. So, at .600 valve lift these heads will flow 290 CFM on the intake and 193.9 on the exhaust side.

Your cams have a max lift of .450. So, if you look where it says .400-.500 on the lift column and follow that over to the CORR CFM column you get your flow for your cams. Somewhere between .400 lift and .500 lift. That is.

07 STROKER · May 15th, 2009, 03:26 PM

these heads have oversized ehaust valves, yet max lift shows less CFM than the stage 2 according to the website WTF. And thanks corn boy.

Towelly · May 15th, 2009, 03:27 PM

Originally Posted by 07 procharger

these heads have oversized ehaust valves, yet max lift shows less CFM than the stage 2 according to the website WTF. And thanks corn boy.

Oversized vavles will not help flow. But they will help atomization on the intake side and help with valve wear on the exhaust side because the bigger they are the more heat they can hold/deal with. Didn't you mention they are stainless too? That will help a lot as well.

I'd still say those theads are better than stage II's.

No problem. Glad to help Maple Man......

07stanggt · May 15th, 2009, 03:28 PM

uploading a pic for stage 2 and 3 right now. I have been looking at it. Like towelly said, they flow better at most lower lifts up to 500. 600 lift flow is of little concern. Even stage III spr blower cams dont have a .600 lift.

We are going to do some custom cams for ken down the road to match these heads.

Towelly · May 15th, 2009, 03:29 PM

Originally Posted by 07stanggt

uploading a pic for stage 2 and 3 right now. I have been looking at it. Like towelly said, they flow better at most lower lifts up to 500. 600 lift flow is of little concern. Even stage III spr blower cams dont have a .600 lift.

We are going to do some custom cams for ken down the road to match these heads.

Cool. When you get some custom cams in there, they will for sure be better than stage II's.

07 STROKER · May 15th, 2009, 03:31 PM

its a short road as well

Goddman UPS...Heads are 4 hours away from me sitting in Calgary and they missed the truck up to whitecourt (where I am) now they wont move untill tuesday.

Towelly · May 15th, 2009, 03:32 PM

Originally Posted by 07 procharger

its a short road as well

Goddman UPS...Heads are 4 hours away from me sitting in Calgary and they missed the truck up to whitecourt (where I am) now they wont move untill tuesday.

Shitty.

May 15th, 2009, 03:04 PM	#1
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	flow chart Can someone who understands this analyse this compared to a stage 2 head from livernois? This is for the heads they are sending me. Thanks, __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:05 PM	#2
Towelly Wherever you go! 2006 Mustang GT 13.04 @ 106 Join Date: Apr 2008 Location: Iowa Posts: 2,990	Whats the max lift of the cams your going to be running? At .600 lift the heads will flow roughly 290 CFM on the Intake side and 193 on the exhaust side. CORR CFM is corrected CFM IIRC. So figure out what your cams max lift is then look at that chart to see where your going to be. On the left hand side the .XXX number is what the intake/exhaust ports flow at that height of lift. Port is what side. Intake or exhuast... I miss anything? __________________ "Its the things you love that make you who you are!" "I guess that makes me large breasts...." Penny and Howard. The Big Bang Theory Last edited by Towelly : May 15th, 2009 at 03:08 PM.

May 15th, 2009, 03:07 PM	#3
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	my cams are 127200 comp nsr's __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:08 PM	#4
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	COMP Cams® - Cam Details __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:10 PM	#5
tribaltek Hardcore Enthusiast 2005 Mustang GT 13.02@107 Join Date: Feb 2008 Location: Detroit Posts: 2,266	You're building a whole damn engine and going with NSR's? __________________ '05 GT, 5spd, Black, JLT, 4.10, FRPP Hot Rod Cams, UDP, MGW, OBX LT & O/R-H, Bassani Race Cammed Crew #1

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May 15th, 2009, 03:11 PM	#6
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	Im doing some grunt work for Rich with these cams before I upsize. __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:12 PM	#8
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	sooooo.....these flow worse - as good- or better than stage 2's? __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:14 PM	#10
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	livernois stage 2 heads. __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:15 PM	#11
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	New - Livernois Motorsports - CNC Stage 2 Ford 4.6L 3-Valve Cylinder Heads __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:16 PM	#12
Towelly Wherever you go! 2006 Mustang GT 13.04 @ 106 Join Date: Apr 2008 Location: Iowa Posts: 2,990	Better. By about 7 CFM at max lift... Can't tell your what they would flow with those cams because I don't they don't have a spec sheet listed for them (Stage II heads) on the website. Just shows max numbers. __________________ "Its the things you love that make you who you are!" "I guess that makes me large breasts...." Penny and Howard. The Big Bang Theory

May 15th, 2009, 03:18 PM	#13
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	how are you figureing this out? __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:22 PM	#14
Towelly Wherever you go! 2006 Mustang GT 13.04 @ 106 Join Date: Apr 2008 Location: Iowa Posts: 2,990	Ok.. See where it says lift? Below that is the hieght the valve is raised. .600 being the highest they tested the flow at. This is the MAX lift. Now, under CORR CFM. Under that column is the amount of CFM flowing through the port at the corresponding amount of lift. So, at .600 valve lift these heads will flow 290 CFM on the intake and 193.9 on the exhaust side. Your cams have a max lift of .450. So, if you look where it says .400-.500 on the lift column and follow that over to the CORR CFM column you get your flow for your cams. Somewhere between .400 lift and .500 lift. That is. __________________ "Its the things you love that make you who you are!" "I guess that makes me large breasts...." Penny and Howard. The Big Bang Theory Last edited by Towelly : May 15th, 2009 at 03:26 PM.

May 15th, 2009, 03:26 PM	#15
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	these heads have oversized ehaust valves, yet max lift shows less CFM than the stage 2 according to the website WTF. And thanks corn boy. __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 03:28 PM	#17
07stanggt I Post Entirely Way Too Much 2007 GT Join Date: Mar 2007 Location: Ellicott City, MD Posts: 11,946	uploading a pic for stage 2 and 3 right now. I have been looking at it. Like towelly said, they flow better at most lower lifts up to 500. 600 lift flow is of little concern. Even stage III spr blower cams dont have a .600 lift. We are going to do some custom cams for ken down the road to match these heads.

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May 15th, 2009, 03:31 PM	#19
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,931	its a short road as well Goddman UPS...Heads are 4 hours away from me sitting in Calgary and they missed the truck up to whitecourt (where I am) now they wont move untill tuesday. __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

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