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Old 04-29-2014, 09:18 PM
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Recommended upgrades for a stock 5.7

Hey guys,

I'm new to the forum and a first time JGC owner.

I recently purchased a 2014 JGC Overland with a 5.7 V8.

I know nothing about engines, so bare with me..

What are some easy engine upgrades, or better yet, the first upgrades, anyone interested in increasing HP should consider?
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Old 04-29-2014, 10:09 PM
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Re: Recommended upgrades for a stock 5.7

catch can, catch can,catch can
do you have to? ...no
but according to folks that are alot smarter then me hemi engines have alot of blow by that results in lots of oil fumes being drawn thru the intake which causes lots of buildup. here read some of these: https://www.google.com/search?q=why+...sm=93&ie=UTF-8


to answer your question most popular are cold air intake, tuner to access the cars computer , and exhaust as far as tuner most people use diablosport trinity (dont know if they have one for the 14s yet)
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Old 04-30-2014, 02:47 AM
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Re: Recommended upgrades for a stock 5.7

The tuner will have the greatest effect. It gets better with mods though. Diablo has released tuning for the '14 WK2.
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Old 04-30-2014, 06:57 AM
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Re: Recommended upgrades for a stock 5.7

Thanks for the tips guys.

How do these mods I.E. tuner, cold air intake, affect the warranty if you have an issue?
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Old 04-30-2014, 08:03 AM
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Re: Recommended upgrades for a stock 5.7

The Diablosport Trinity or the Intune saves a copy of the factory settings, so you can revert to stock when you take it for a service. I hear the best custom tunes can be sourced from Hemifever.
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Old 04-30-2014, 08:53 AM
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Re: Recommended upgrades for a stock 5.7

I say catch can, intake and larger throttle body... then exhaust and tuner
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Old 04-30-2014, 07:14 PM
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Re: Recommended upgrades for a stock 5.7

Quote:
Originally Posted by markski View Post
The Diablosport Trinity or the Intune saves a copy of the factory settings, so you can revert to stock when you take it for a service. I hear the best custom tunes can be sourced from Hemifever.
Just make sure Chrysler cannot tell that the stock tune has been "unlocked" by removing and reinstalling it as the GM Tech tools can. Several of my Corvette and CTS-V friends have had their coverage denied when they tried to reinstall the stock tune.
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Old 05-01-2014, 09:00 AM
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Re: Recommended upgrades for a stock 5.7

In all honesty, you just dumped a ton of cash for this vehicle. Chrysler has forced dealers to be very careful with warranty work. Your dealer may be the exception. Many on here... "sell" these upgrades or will refer you to someone who does... The upgrades WILL void the warranty if they cause any malfunction with the engine. The only upgrade that I was told by Chrysler that will NOT void the warranty is the MOPAR cold air intake that is available through MOPAR performance. If you chip it, you will void the warranty. If the engine computer dies, you can't reload the factory defaults. If you do reload it, and can't drive the car, the computer logs that there was a recent "reset" and they will question that. There is a tattle tail program in the engine computer that tells the dealer "something" has been tampered with. Do these upgrades at your own risk, if you have a pocket of cash... Have fun....
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Old 05-01-2014, 06:52 PM
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Re: Recommended upgrades for a stock 5.7

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Originally Posted by hububub46 View Post
. Many on here... "sell" these upgrades or will refer you to someone who does... .
Can you please clarify this statement please?
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Old 05-02-2014, 02:24 AM
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Re: Recommended upgrades for a stock 5.7

Would someone in the know like Hemifever or Diablosport care to comment?
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Old 05-03-2014, 02:13 PM
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Re: Recommended upgrades for a stock 5.7

Catch Can is the first thing to get with a 5.7, as it will not only run better, it will run better for a long time by keeping the intake and TB clean. The only downside is during cold weather (like this winter in the north) it fills quickly with condensation and must be emptied often.
Taper ported TB and Diablosport tuner are the next best things, then voltage stabilizer. All of these are ery easy to install and they do make it run much better. Forget intake and exhaust as they are a total waste of money and only add noise...Been there, done that and mine drives better and is MUCH quieter with stock intake and exhaust back on.
Hemifever has tuned tons of 5.7's and I've been running all 3 variances, 87, 91 and 93 octane. I would not be concerned about blowing up a Hemi using his tunes, just be sure when running the 93 tune, there is only 93 in the tank. It is very easy to revert back to stock tune when taking it in for service.
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Old 05-04-2014, 07:47 AM
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Recommended upgrades for a stock 5.7

Best tunes in the business! I was one of Sean's first grand Cherokee tunes and it is the best thing I ever did to wake up that engine not to mention the transmission reprogram for my 2012.

I also tuned my 2007 corvette Z06 and there will always be the paranoid ones about Installing a tune and claiming it will void your warranty. I say don't worry be happy!
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