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Unread 10-08-2014, 11:14 AM   #1
AlDente
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Engine mods on the V6?

I'm sure this has been covered, but I wasn't sure of the best search terms to use...

Has anyone done any worthwhile HP modifications, aside from exhaust and intake?

The available mods on my previous German car were fiendishly expense for the power gains. Being new to a domestic vehicle, I was wondering if the options out there were more robust and/or inexpensive.

I've done the K&N intake on other cars and honestly detected no difference on those, which is why I sort of rule that out. But if anyone has a measurable difference versus cost comparison, I'm still game. Exhaust is too labor intensive to install and reverse if I decide to end my lease versus buy it out.

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Unread 10-08-2014, 01:21 PM   #2
ColdCase
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The most bang for the buck is a diablo tuner, but there will still be holes in the performance curve. Filters and exhaust are a feel good and good sound type investments... small if any performance difference. I read here that someone is introducing a supercharger kit..... now that may be interesting.
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Unread 10-08-2014, 01:49 PM   #3
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It would seem there is some room for some low cost upgrades since the same engine makes over 300hp in other applications(305hp in the Challenger SXT for example). I wonder what Dodge does to get the extra 15hp?
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Unread 10-08-2014, 01:55 PM   #4
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The are differences in the V8 intake and exhaust manifolds due to the limited WK2 engine bay space, the V6 may be similar... or not .
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Unread 10-08-2014, 02:43 PM   #5
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^^^^this^^^^^it's all about the plenum runners......
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Unread 10-08-2014, 03:56 PM   #6
Dabitz
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There is a company working on a supercharger for the V6.

Quoted from their website:
Preliminary tests show an Automatic 3.6 Pentastar Jeep Grand Cherokee produces only 190** rear wheel HP (WHP) in stock form. With a RIPP Supercharger installed we safely squeezed 340WHP* and 325ft/lbs* of Torque on stock rims and tires. End quote.

This however, will set you back $6.3k. Ouch!

http://www.rippmods.com/shop/2011-14...it-intercooled
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Unread 10-09-2014, 08:29 AM   #7
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Quote:
Originally Posted by Dabitz View Post
There is a company working on a supercharger for the V6.

Quoted from their website:
Preliminary tests show an Automatic 3.6 Pentastar Jeep Grand Cherokee produces only 190** rear wheel HP (WHP) in stock form. With a RIPP Supercharger installed we safely squeezed 340WHP* and 325ft/lbs* of Torque on stock rims and tires. End quote.

This however, will set you back $6.3k. Ouch!

http://www.rippmods.com/shop/2011-14...it-intercooled
The Hemi only costs about $2200 more, for roughly the same power as a V6 with this supercharger. A supercharged V6 won't sound as good as a growling V8!
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Unread 10-09-2014, 08:53 AM   #8
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Originally Posted by hemispin View Post
The Hemi only costs about $2200 more, for roughly the same power as a V6 with this supercharger. A supercharged V6 won't sound as good as a growling V8!
Maybe, but you're missing the fact that you have to buy a limited in order to get the hemi. My base laredo is $10,000 CAD cheaper than a limited, then add the hemi price difference on top of that. Still, 6K is too rich for me, which is a pity. If it was 2K or 3K I would jump all over it
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Unread 10-09-2014, 09:32 AM   #9
Dabitz
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Originally Posted by hemispin View Post
The Hemi only costs about $2200 more, for roughly the same power as a V6 with this supercharger. A supercharged V6 won't sound as good as a growling V8!
The horse power is measured at the rear wheels which is "higher than a 5.7 and as much as some stock 6.1 and 6.4 Hemi's V8's."
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Unread 10-09-2014, 10:02 AM   #10
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Ripp mods make a supercharger kit for the Hemi too. It's about $7000. Tempting, but I'd never use the extra power.
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Unread 10-09-2014, 11:43 AM   #11
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Originally Posted by hemispin View Post
Ripp mods make a supercharger kit for the Hemi too. It's about $7000. Tempting, but I'd never use the extra power.
Sure you would Every time you accelerate you would notice the extra power, just like (generally) moving from a 4 banger to a v6 or a v6 to a v8; you don't always have to drive the snot out of it, but you will definitely notice the extra power under normal load too.
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Unread 10-09-2014, 02:06 PM   #12
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Originally Posted by hemispin View Post
The Hemi only costs about $2200 more, for roughly the same power as a V6 with this supercharger. A supercharged V6 won't sound as good as a growling V8!
Actually, according to our dyno tests, a stock WK2 5.7 Hemi can put down as little as 240-270 WHP. Food for thought.

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Unread 10-09-2014, 03:12 PM   #13
hemispin
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Originally Posted by RIPPMODS View Post
Actually, according to our dyno tests, a stock WK2 5.7 Hemi can put down as little as 240-270 WHP. Food for thought.

RIPP
That's all fine and dandy, but let's not forget that the Hemi-equipped 2014 and up models have the more durable version of the 8 speed transmission.

The transmission that comes with the V6 is less durable, and has shown issues without engine mods. I'm gonna venture to guess that the transmission is more likely to have problems and/or less longevity when throwing an additional 150 or so HP at it.
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Unread 10-09-2014, 03:42 PM   #14
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Quote:
Originally Posted by RIPPMODS

Actually, according to our dyno tests, a stock WK2 5.7 Hemi can put down as little as 240-270 WHP. Food for thought.

RIPP
That's only what is being to the ground with loss through the drive train.
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Unread 10-09-2014, 03:49 PM   #15
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Originally Posted by 10Xk View Post
That's only what is being to the ground with loss through the drive train.
Right, and you can expect 340 WHP on the 3.6L with our system,to the ground, after drive train loss.

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