Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8 - Page 2 - Jeep Garage - Jeep Forum

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  #13  
Old 06-27-2016, 12:58 AM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

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Great wright up and photos, thanks for that!

How much difference in performance do you "feel" and have you done anything else to you engine?
That's a tough question. My SOTP (seat of the pants) dynamometer is pretty sensitive - so between confirming with some times runs and having fun on a closed road course, it sure feels a bit faster.

Remember - 10 hp gains on a 5,000 lb vehicle to those less sensitive may be a wash.

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  #14  
Old 06-27-2016, 11:52 PM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

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That's a tough question. My SOTP (seat of the pants) dynamometer is pretty sensitive - so between confirming with some times runs and having fun on a closed road course, it sure feels a bit faster.

Remember - 10 hp gains on a 5,000 lb vehicle to those less sensitive may be a wash.
Cool, thanks. I'm might wait until the warranty is up and get a supercharger instead to make sure to get maximum performance
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  #15  
Old 06-30-2016, 11:09 AM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

Don't expect power from a intake.
I am surprised to hear the sound only increased by 10%, I guess I am glad I went with the Volant since it sounds great.
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  #16  
Old 07-01-2016, 12:45 PM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

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Don't expect power from a intake.
I am surprised to hear the sound only increased by 10%, I guess I am glad I went with the Volant since it sounds great.
That seems like an odd thing to say - are you saying that the only reason you added an intake is to make it sound cool?

If you look at the aFe airbox, it's a enclosed system, similar to the OEM one, less the resonator box just ahead of the TB.
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Old 07-01-2016, 12:54 PM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

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That seems like an odd thing to say - are you saying that the only reason you added an intake is to make it sound cool?

If you look at the aFe airbox, it's a enclosed system, similar to the OEM one, less the resonator box just ahead of the TB.
I added the intake because I was bored , sound was the bonus.
In regards to the power comment, it might add a little in the highest rpm's but it's so minimal no one should have expectations of feeling the power.
to anyone who does
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Old 07-29-2016, 01:18 PM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

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Hereís my back to back testing using the Torque Pro App:

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Originally Posted by DrSpeed View Post
The top number half is with the aFe, the bottom is with the OEM air box.
My reading comprehension is usually pretty good... but I have to ask;
The OME intake was quicker to 60mph by over 6 tenths of a second compared to the AFe intake?
But the AFe was quicker in the 1/4 by a tenth and a half?
If that is the case, that AFe provides amazing "passing power" (nearly a second faster from 60mph to ~93mph, that is something you would absolutly feel), but poor TQ...
Since for me, I don't have any 2 lane roads where I need to pass quickly to be safe, I'll stick with the greater off idle punch.
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  #19  
Old 07-29-2016, 01:32 PM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

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Originally Posted by Mike H. View Post
My reading comprehension is usually pretty good... but I have to ask;
The OME intake was quicker to 60mph by over 6 tenths of a second compared to the AFe intake?
But the AFe was quicker in the 1/4 by a tenth and a half?
If that is the case, that AFe provides amazing "passing power" (nearly a second faster from 60mph to ~93mph, that is something you would absolutly feel), but poor TQ...
Since for me, I don't have any 2 lane roads where I need to pass quickly to be safe, I'll stick with the greater off idle punch.
That's generally the case with any aftermarket, high flow intake. You lose a bit of the velocity generated from a longer, more restrictive intake that generates better swirl for low RPM performance, and gain it back in the high RPM.


That was a very astute observation!
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  #20  
Old 07-29-2016, 01:43 PM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

^^^Yup need a tune to avoid this
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  #21  
Old 07-29-2016, 02:51 PM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

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^^^Yup need a tune to avoid this
This is more so the physical attribute of the components.

More difficult (if not impossible) to tune out.
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  #22  
Old 08-02-2016, 10:15 AM
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Re: Installation and Review: aFe Momentum GT Intake - WK2 Grand Cherokee 5.7 L V8

We have several of these coming back in stock and have them on sale if anyone is interested. One of our customers has it on his Durango RT and loves it.
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