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Hemi 6.1 Dyno


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Posted
Here is a dyno of the 300M, that has the new hemi 6.1.

Competion can be good. Can't wait till the new GM motors come up for the new Chevys trucks.

 

http://www.svtperformance.com./forums/show...ad.php?t=177226

 

 

 

 

 

Judging by the graph of the power curve it is still not a engine well suited for heavy SUV's as the torque peaks around 4500RPM and down by more than 10% at 3500rpm. That curve may be okay for a light weight car but sucks in a heavy SUV where is spend most of its life below 4000RPM. Dodge still has not figured it out as they replaced the stump pulling V10 with a hemi that is a gutless wonder below 2500 in order to make impressive high RPM power output. They would have done well to have tuned that engine to peak its torque about 1000 RPM lower and make a few less ponies at peak power for better low end and mid range power and pull which a heavy SUV needs.

Posted
Here is a dyno of the 300M, that has the new hemi 6.1.

Competion can be good. Can't wait till the new GM motors come up for the new Chevys trucks.

 

http://www.svtperformance.com./forums/show...ad.php?t=177226

 

 

 

 

 

Judging by the graph of the power curve it is still not a engine well suited for heavy SUV's as the torque peaks around 4500RPM and down by more than 10% at 3500rpm. That curve may be okay for a light weight car but sucks in a heavy SUV where is spend most of its life below 4000RPM. Dodge still has not figured it out as they replaced the stump pulling V10 with a hemi that is a gutless wonder below 2500 in order to make impressive high RPM power output. They would have done well to have tuned that engine to peak its torque about 1000 RPM lower and make a few less ponies at peak power for better low end and mid range power and pull which a heavy SUV needs.

 

 

 

 

 

 

Thats why thats the one that is not going in the ram. The Ram version won't have near that HP, but the torque will move down in rpm.

The Ram version has a different sized intake runners. Shorter and fatter, or longer and skinnier. I forget which one does what. It also will have a diff cam, and be just s single exhaust, instead of dual.

 

But back on topic, thats awesome numbers for a 372 cubic inches.

Posted
Here is a dyno of the 300M, that has the new hemi 6.1.

Competion can be good. Can't wait till the new GM motors come up for the new Chevys trucks.

 

http://www.svtperformance.com./forums/show...ad.php?t=177226

 

 

 

 

 

Judging by the graph of the power curve it is still not a engine well suited for heavy SUV's as the torque peaks around 4500RPM and down by more than 10% at 3500rpm. That curve may be okay for a light weight car but sucks in a heavy SUV where is spend most of its life below 4000RPM. Dodge still has not figured it out as they replaced the stump pulling V10 with a hemi that is a gutless wonder below 2500 in order to make impressive high RPM power output. They would have done well to have tuned that engine to peak its torque about 1000 RPM lower and make a few less ponies at peak power for better low end and mid range power and pull which a heavy SUV needs.

 

 

 

 

 

 

Thats why thats the one that is not going in the ram. The Ram version won't have near that HP, but the torque will move down in rpm.

The Ram version has a different sized intake runners. Shorter and fatter, or longer and skinnier. I forget which one does what. It also will have a diff cam, and be just s single exhaust, instead of dual.

 

But back on topic, thats awesome numbers for a 372 cubic inches.

 

 

 

 

 

 

Longer and skinner gives better lower end while shorter and fatter favors top end. Get the displacement up to about 400 cu inches would help a lot too since the motor it replaced had close to 500cu's

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