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  1. #1
    BootCamp is offline Senior Member
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    Default Nitrous - From A 5.7L Hemi Owner

    I was chatting the other day with a guy who has installed NOs on his 5.7L Hemi Dodge Ram P/U and had nothing but good things to say.
    He gave me a few tips - for anyone interested - on "bottling" a 5.7L.
    First, he said to go with a ZEX wet kit. He said everything you'd need is in the kit (except having the bottle filled - appx. $65.00). Then he said you'd need to "cool" the spark plugs two steps to prevent detonation, which could seriously damage the pistons.
    He also said that once the kit was in (it only operates at WOT), you should use the SuperChip FlashPaq to set the fuel for 87 octane.
    He runs his with a 125hp shot, and it hasn't caused him any problems at all.
    He was running the 1/4 mi in 14.71 @ 92.34 mph BEFORE the NOs kit,
    and 13.43 @ 100.01 mph AFTER the installation.
    You can see his truck & details here .

    For about 10% of the cost of a supercharger, he's got a comparable hp gain.
    "The only thing necessary for the triumph of evil is for good men to do nothing". - Edmund Burke
    09 Challenger SRT8 6 Speed
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  2. #2
    lear4406 is offline Senior Member
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    Interesting, I will more than likely mod my Challenger and this may be an option I would consider. Its good to hear from someone who has used this option and had good results. Also with the supporting adjustments to keep it as safe as you can with Nitrous.

  3. #3
    Jeremiah 29:11 is offline Super Moderator
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    The Zex kits are used a lot on Horsepower TV on the Power Block and they like them as well.

    For me I will go with some sort of forced induction even though it costs more. I feel it is safer and I do not
    have to mess with filling up a bottle all of the time.
    For I know the plans I have for you," declares the LORD, "plans to prosper you and not to harm you, plans to give you hope and a future. Then you will call upon me and come and pray to me, and I will listen to you. You will seek me and find me when you seek me with all your heart.

  4. #4
    Paladin06's Avatar
    Paladin06 is offline Senior Member
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    Intercooled Supercharger, end of conversation for me.


    ORIGINAL: Jeremiah 29:11

    The Zex kits are used a lot on Horsepower TV on the Power Block and they like them as well.

    For me I will go with some sort of forced induction even though it costs more. I feel it is safer and I do not
    have to mess with filling up a bottle all of the time.

  5. #5
    Jeremiah 29:11 is offline Super Moderator
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    Yep, forced induction and big displacement is where it is at.
    For I know the plans I have for you," declares the LORD, "plans to prosper you and not to harm you, plans to give you hope and a future. Then you will call upon me and come and pray to me, and I will listen to you. You will seek me and find me when you seek me with all your heart.

  6. #6
    lear4406 is offline Senior Member
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    Welllll.... you know, Hemis and superchargers do go hand in hand. Big cubed hemi with a supercharger whine.

  7. #7
    BootCamp is offline Senior Member
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    I'm not sure what I'm going to do with mine yet.
    While the NOs systems are a very cost effective way to add considerable horsepower, I'm not sure it's what I really want to do.
    I've had turbocharged cars in the past, but never supercharged or bottled cars.
    I'm leaning toward adding a supercharger.
    "The only thing necessary for the triumph of evil is for good men to do nothing". - Edmund Burke
    09 Challenger SRT8 6 Speed
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  8. #8
    1 Bad Mirada's Avatar
    1 Bad Mirada is offline Administrator
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    there are up sides and down sides to every power adder, nitrous included. ive seen guys who have run bottled cars for years, who have perfectly tuned cars, and mid pass, something "goes wrong" with the nitrous setup....understand that while nitrous is cheap and super effective, it can also be VERY destructive should something go wrong.

    ive dealt with a zex wet kit, and had excellent results. the problem is that many people dont have the smarts to wire everything up properly, and if your TPS switch isnt functioning properly and you run lean, it can do alot of damage in a hurry.

    also, any forced induction setup, be it nitrous, turbo, or supercharger, increases the wear on an engine, especially one intended for NA use.

  9. #9
    BootCamp is offline Senior Member
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    ORIGINAL: 1 Bad Mirada

    there are up sides and down sides to every power adder, nitrous included. ive seen guys who have run bottled cars for years, who have perfectly tuned cars, and mid pass, something "goes wrong" with the nitrous setup....understand that while nitrous is cheap and super effective, it can also be VERY destructive should something go wrong.

    ive dealt with a zex wet kit, and had excellent results. the problem is that many people dont have the smarts to wire everything up properly, and if your TPS switch isnt functioning properly and you run lean, it can do alot of damage in a hurry.

    also, any forced induction setup, be it nitrous, turbo, or supercharger, increases the wear on an engine, especially one intended for NA use.
    That's the problem for me.
    While I can usually comprehend and apply anything I get my hands on in short order, not everything is spelled out and without experience with a "system" (be it supercharger, turbocharger or nitrous), lessons can be very costly since they're usually "reactive" as opposed to "proactive".
    This brings up (personally) considerations as to which Hemi is most moddable. The 5.7 has a lower compression ratio, so (I would think) would be less susceptible to engine damage with forced induction than the higher SRT 6.1. Then again, with the SRT, you're starting with 85 more HP right off the showroom floor.
    Decisions, decisions, decisions......
    "The only thing necessary for the triumph of evil is for good men to do nothing". - Edmund Burke
    09 Challenger SRT8 6 Speed
    Brilliant Black Crystal Pearlcoat Metallic

  10. #10
    Jeremiah 29:11 is offline Super Moderator
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    Default RE: Nitrous - From A 5.7L Hemi Owner

    If Mopar performance does disappear, we will be depending on many 3rd party suppliers to provide what they see as the optimal and reliable performance power adder.
    For I know the plans I have for you," declares the LORD, "plans to prosper you and not to harm you, plans to give you hope and a future. Then you will call upon me and come and pray to me, and I will listen to you. You will seek me and find me when you seek me with all your heart.

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