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Old 07-31-2016, 07:29 PM
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5.7L and Nitrous oxide, is it doable?

Was looking to install a Nitrous Oxide kit on my 2014 JGC Overland. I can't seem to find any reviews from owners who may have done it. Is a 50-75 shot doable on this engine or am I asking for trouble.

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Michael Plummer

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Old 07-31-2016, 07:40 PM
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Re: 5.7L and Nitrous oxide, is it doable?

I haven't done any research on it but my tuner here in south Florida suggested it for me, the internals in the 5.7 are pretty strong so I think they can take the extra power
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Old 08-01-2016, 09:46 PM
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Re: 5.7L and Nitrous oxide, is it doable?

I would think up to a 100hp shot would be ok with moderate use.
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Old 08-02-2016, 04:54 AM
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Re: 5.7L and Nitrous oxide, is it doable?

What concerns me is, I can't seem to find anyone who uses Nitrous Oxide(NOS) on the Jeep 5.7L pistons. Is the ring package okay for NOS use, how much is reasonable in terms NOS shots (50, 75, 100, etc.) or how do you go about retarding timing when the NOS is activated are a few questions I have.

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Old 08-02-2016, 05:34 PM
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Re: 5.7L and Nitrous oxide, is it doable?

Quote:
Originally Posted by Michael Plummer View Post
What concerns me is, I can't seem to find anyone who uses Nitrous Oxide(NOS) on the Jeep 5.7L pistons. Is the ring package okay for NOS use, how much is reasonable in terms NOS shots (50, 75, 100, etc.) or how do you go about retarding timing when the NOS is activated are a few questions I have.

Thanks
Michael Plummer
I think for low power shots, under 100 your not going to get into timing and increasing fuel. There does seem to be plenty of kits for the 5.7 hemi suggesting the engine can handle it. Not sure where you are in MA but if you get it installed I want to check it out.
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Old 08-03-2016, 04:58 AM
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Re: 5.7L and Nitrous oxide, is it doable?

JoeD thanks for the reply. I'm not familiar with Hemi engines like I am with Ford engines so I still have questions which I'm actively seeking answers. And yes, there are a few companies that sell NOS kits for the 5.7L engine but I'm not 100% sure if all 5.7L Hemi engines use the same pistons and ring package through out their lineup.
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Old 08-05-2016, 05:03 PM
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Re: 5.7L and Nitrous oxide, is it doable?

Update on installing a Nitrous kit in my 2014 5.7L Overland.
I asked my dyno/performance shop for my Jeep on their opinion about adding a 50 or 75 shot of Nitrous and this is what they had to say. "Not really a big fan of nos. It's finicky and never works well. Plus, by the time you are done installing the kit, pressure gauges, bottle heater, opener, and more you are talking a $600 to $1000 install." Personally I would save your $.

"I have done a few kits on 5.7 Challengers and Chargers. Some success, another customer beating on the car at the drag strip blew it up. He was running a 100 shot.

Again, we would advise against it."


I called Nitrous Express and their view is, I should have no problems provided the installation is correct and timing is retarded or I use stock timing. This is the kit they recommended: HEMI PLATE SYSTEM (50-400HP) W/ 10LB BOTTLE

I've done some reading online and found a few opinions about the ring lands being to close to the top of the pistons (not ideal for power adder). So I have some thinking to do before I decide which way to go.

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Michael Plummer
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Old 08-13-2016, 10:31 PM
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Re: 5.7L and Nitrous oxide, is it doable?

Not to go off track but how about a cam swap? I'm a GM guy and I know the LS motors are very responsive to cam upgrades, I wonder if the hemi is as well?
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