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Old 04-01-2013, 05:10 PM   #1
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RIPP supercharger or pentastar?

Hi everyone. I was hoping for your input on something. I have an 09 JK. I recently test drove the new pentastar version. I noticed the difference, but didn't think it was quite worth the price of buying a new rig to get it. Especially with all the work I put in it already. I then saw the RIPP supercharger. They have some pretty amazing power claims. (All backed up by customers) Would adding the RIPP supercharger give my 3.8 more power and gas mileage then the pentastar? Would it be close to equivalent? Would if not be quite as good?

Thanks,

Kevin

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Old 04-01-2013, 05:15 PM   #2
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Ive run supper chargers on cars Ive had in the past and none of them imporved the MPG. Great for HP though. I would think a 3.8 with a good SC would give better performance numbers than the stock 3.6.

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Old 04-01-2013, 05:21 PM   #3
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Depending on the configuration, there are some pentastar owners on here that get below 16mpg stock so I can't imagine it would be lower than that. However it won't increase mileage over what you get now
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Old 04-01-2013, 05:21 PM   #4
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So RIPPs claim that you get 2-4 more mpg (when not flooring it) is mostly hype?
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Old 04-01-2013, 05:36 PM   #5
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Pentastar. Consider a blown 3.8 power level with a full factory warranty.
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Old 04-01-2013, 06:49 PM   #6
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Quote:
Originally Posted by Sonorous Aria View Post
So RIPPs claim that you get 2-4 more mpg (when not flooring it) is mostly hype?
It's possible that it would give you extra mpg because it could give you more power at a lower RPM and this using less fuel. At the same time with more air you usually add more fuel to the mix to make even more power. That added fuel could make mpg go down. Either way. I don't think you would lose much mpg if you do
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Old 04-01-2013, 06:52 PM   #7
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In theory, a supercharger OR turbocharger will give you better cruising MPG at low RPMs because it increases combustion efficiency by providing a better air/fuel ratio (in essence).

That theory is thrown out the window then people push their right foot down and feel how awesome it is to open up a super/turbocharger.

IF you have good self control and can keep your foot out of it, I would expect ~10% mileage gain, mostly at highway speeds.
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Old 04-01-2013, 07:07 PM   #8
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Quote:
Originally Posted by Olysouthpaw24 View Post
In theory, a supercharger OR turbocharger will give you better cruising MPG at low RPMs because it increases combustion efficiency by providing a better air/fuel ratio (in essence).
Except most tunes are RICH to prevent detonation and increase reliability. Optimum A/F ratio for a factory tuned engine is 14:7 which is way too lean to be boosted. Most tunes will be between 10:1 - 12:1 for boosted engines.
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Old 04-01-2013, 07:12 PM   #9
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Pentastar. Why leave off, where the new motor starts. Not to mention the upgrades that come with new jeep.
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Old 04-01-2013, 07:18 PM   #10
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Dude, I love my 09. The 3.8 is a proven workhorse. The entire jeep (knock on wood) has been problem free since I bought it. I would love to add a RIPP supercharger and 4.88 gears. I'll keep my 09 over a new JK any day. I don't give a damn about mileage. I was over that, 6 months after I bought it.
Wish I had the $7,000 (gears and SC)to live the dream. I'll keep playing the lottery.
Curious to hear what you go with.
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Old 04-01-2013, 07:19 PM   #11
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i vote pentastar. when your weigh the truck down and are looking for more power you can supercharge it.
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Old 04-01-2013, 08:19 PM   #12
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For what it is worth. A guy locally installed the RIPP on his 3.8. He has had that on for almost 2 years. He said it was not worth it and is now either going HEMI or buying new because he is over the 3.8l and ripp.... I am stoked with the 3.6l so far... but keep dreaming about the RIPP with that even...
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Old 04-02-2013, 12:08 AM   #13
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I hope to be able to give first hand experience in the coming weeks!


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