flow chart

07 STROKER · May 15th, 2009, 04:32 PM

ya stainless valves as well...i hope. i thought they would have done more aggresive porting on the exhaust side to compliment the oversized valve

JakeM · May 15th, 2009, 04:34 PM

The flow per square inch on the exhaust side is pretty damn good.. I'd say they pretty well ported the shit out of the exhaust side. You want almost twice as much flow on the intake side as the exhaust side anyway. Not quite twice but close. On three valve heads anyway.

07 STROKER · May 15th, 2009, 04:38 PM

i see.

kraigster · May 15th, 2009, 07:13 PM

I was looking at your flow numbers and I can say that the intake flows very well, However the exhaust is not as good as the claim. The say stage 2 flows 283int/203exh. that would be an exh/int of 70% and that is kick ass. Your heads on the other hand have a % exh/int of 66.8@ .600 lift, thats not 70% wtf happened ? Now your gonna have to compensate by adding a camshaft with a little more exh duration to make up for a head that is a little short on the exh. Not trying to burst your bubble , just pointing out some facts. They should still make good power though.

07 STROKER · May 15th, 2009, 07:15 PM

who runs a .600 lift cam on the streets...look at the lower flow numbers.

kraigster · May 15th, 2009, 07:18 PM

If you run a SPR stage 2 your gonna be @550. Right ? No one invest that much money in a set of heads to run a .450 lift cam forever.

07 STROKER · May 15th, 2009, 07:21 PM

very true on that point...my current cams are way small

07stanggt · May 15th, 2009, 09:28 PM

now that we have the technical speculation and conjecture out of the way let me be the one to put my neck on the line here and lay this down in plain chapter and verse.

Here is my tech response.

These heads are bad ass! With NSR cams on them this car is going to make more power then 99.999% of the so called bad ass stage 45 heads and stage XXX cams out there.

Shit, i make more power with 535 lift then guys are making with 565.

Relax.

On more thing. When i have time this summer, im putting my stage II NSR's back in the car and ripping 11s with them. MID 11s with them. And i will be taking bets on it.

END THREAD

btw way here are the pics i promised. not enough info to trully compare the heads though.

May 15th, 2009, 04:32 PM	#21
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,933 iTrader: 0 reviews	ya stainless valves as well...i hope. i thought they would have done more aggresive porting on the exhaust side to compliment the oversized valve __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 04:38 PM	#23
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,933 iTrader: 0 reviews	i see. __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 07:13 PM	#24
kraigster Enthusiast 2007 Mustang GT Join Date: Mar 2009 Location: St.Petersburg, Fl Posts: 568 iTrader: 0 reviews	I was looking at your flow numbers and I can say that the intake flows very well, However the exhaust is not as good as the claim. The say stage 2 flows 283int/203exh. that would be an exh/int of 70% and that is kick ass. Your heads on the other hand have a % exh/int of 66.8@ .600 lift, thats not 70% wtf happened ? Now your gonna have to compensate by adding a camshaft with a little more exh duration to make up for a head that is a little short on the exh. Not trying to burst your bubble , just pointing out some facts. They should still make good power though. __________________ Saleen rear fascia with center exhaust, MAC longtubes with o/r Prochamber, Steeda CAI w/carbon fiber elbow, SCT X3, Steeda UDPs, Hurst shifter, modified delete plates, Comp Cams and 4.10s.

May 15th, 2009, 07:15 PM	#25
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,933 iTrader: 0 reviews	who runs a .600 lift cam on the streets...look at the lower flow numbers. __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 07:18 PM	#26
kraigster Enthusiast 2007 Mustang GT Join Date: Mar 2009 Location: St.Petersburg, Fl Posts: 568 iTrader: 0 reviews	If you run a SPR stage 2 your gonna be @550. Right ? No one invest that much money in a set of heads to run a .450 lift cam forever. __________________ Saleen rear fascia with center exhaust, MAC longtubes with o/r Prochamber, Steeda CAI w/carbon fiber elbow, SCT X3, Steeda UDPs, Hurst shifter, modified delete plates, Comp Cams and 4.10s.

May 15th, 2009, 07:21 PM	#27
07 STROKER MM's resident Juice head 07 Mustang GT Join Date: Nov 2007 Location: PA Posts: 7,933 iTrader: 0 reviews	very true on that point...my current cams are way small __________________ The MGW short throw shifter Its not just a shifter...It's a lifestyle!

May 15th, 2009, 09:28 PM	#28
07stanggt I Post Entirely Way Too Much 2007 GT Join Date: Mar 2007 Location: Ellicott City, MD Posts: 11,951 iTrader: 1 reviews	now that we have the technical speculation and conjecture out of the way let me be the one to put my neck on the line here and lay this down in plain chapter and verse. Here is my tech response. These heads are bad ass! With NSR cams on them this car is going to make more power then 99.999% of the so called bad ass stage 45 heads and stage XXX cams out there. Shit, i make more power with 535 lift then guys are making with 565. Relax. On more thing. When i have time this summer, im putting my stage II NSR's back in the car and ripping 11s with them. MID 11s with them. And i will be taking bets on it. END THREAD btw way here are the pics i promised. not enough info to trully compare the heads though.

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