NA intake manifold MADNESS

[WildHorse]

Just a recap;

"The 2018 production intake manifold reigns supreme when it comes to peak numbers, up 4.3 hp and 3.4 lb-ft. Though what might be more important for some people is the 600-plus rpm increase in the powerband, or that the Cobra Jet does make much better average horsepower—25.5 hp more than the 2018, but down 9.4 lb-ft of torque. "But the motor makes more power at 3,500 than it does at 3,000 rpm." Yes, that is true, but widening the power curve also has an improvement on the effective powerband. When averaging the power from 3,000 - 8,000 rpm on the Cobra Jet, it only effects the horsepower by 0.1 hp. So what do you think is more important, peak or average power? Stay tuned for more 2018 Coyote engine dyno testing here at Car Craft!"

On The Dyno

Intake:	Peak HP:	Peak TQ:	Av. HP:	Av. TQ:	PN:
2018	549.8	472.1	438.3	441.5	JR3Z-9424-A
Cobra Jet	545.5	468.7	466.8	432.1	M-9424-M50CJA
Boss 302	531.2	461.0	430.0	433.7	M-9424-M50BR
GT350	543.6	464.3	433.5	436.3	M-9424-M52

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[GregO]

Just a recap

If the published numbers are correct then Ford has done all of its Bullitt, Mach & Power Pack 3 customers a huge disservice by using the GT350 manifold.

 

[WildHorse]

Ford has done all of its Bullitt, Mach & Power Pack 3 customers a huge disservice by using the GT350 manifold.

I'm sure money has everything to do with it.

 

[GregO]

I'm sure money has everything to do with it.

I’m calling BS on the testing protocols.

2021 5.0 GT 460 HP
2021 5.0 Mach 1 480 HP
The difference, GT350 manifold and 87mm TB vs. GT 5.0 manifold and 80mm TB.

 

[WildHorse]

I’m calling BS on CC testing protocols.

Read the article. Decide for yourself. Remember though.. The ain't utilizing GT350 heads.

 

[GregO]

Read the article. Decide for yourself. Remember though.. The ain't utilizing GT350 heads.

They didn’t wick it out past 7300
RPM’s on the GT350 manifold test.
Gen3 head CFM are very close to the GT350’s CFM.
The 2018 manifold is impressive but they should’ve wicked it out to 8,000+ on the GT350 test.

 

[WildHorse]

The 2018 manifold is impressive but they should’ve wicked it out to 8,000+ on the GT350 test.

Why ? The GT350 intakes started to drop off at 7300, the 2018+ at 7100.

 

[GregO]

Why ? The GT350 intakes started to drop off at 7300, the 2018+ at 7100

Does it fall off or just flatten out ? They aborted the pull early.
They wicked the CJ out to 8000 RPM’s. We all know the GT350 will carry power out to 8k+

 

[WildHorse]

Good point so I’m wondering does it fall off or just flatten out ? They aborted the pull early.
They wicked the CJ out to 8000 RPM’s. We all know the GT350 will carry power out to 8k+

Steve Brule has been testing all kinds of engines & engine configurations for a long time. He knows what's what. That's why he took the CJ to 8k. Also like I said.. it doesn't have GT350 heads.

 

[GregO]

Steve Brule has been testing all kinds of engines & engine configurations for a long time. He knows what's what. That's why he took the CJ to 8K. Also like I said.. it doesn't have GT350 heads.

The CJ held power to 8K with a small dip after 7K so we know the Gen3 cams and heads didn’t give out early.
The opening of this article it points out GT350 = 8250 RPM.
IMO the operator should’ve pulled to 8000+.
All the graphs are here;
https://www.motortrend.com/how-to/dyno-every-ford-coyote-intake-manifold-on-gen-3-crate/amp/

 

[Basspro302]

Wonder what a big monoblade is worth on the cj?

 

[GregO]

Wonder what a big monoblade is worth on the cj?

I wonder what the GT350 would make with Mike Soler’s modded out Throttle Body’s ?

 

[WildHorse]

The CJ held power to 8K with a small dip after 7K

And its common knowledge that the CJ will hold a peak flat line from 7k till you let off 8k, 9k, whatever.

 

[Dapepper9]

just to stir things slightly….

 

[Strokerswild]

Plus the GT350 manifold makes my wiener bigger.

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