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Engine Builders talk.

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Old 04-27-2014, 11:40 AM   #321
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3" is to big if your using the stock navi intake. My 03 Navi utilizes 2.5" from the factory.
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Old 04-27-2014, 12:13 PM   #322
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i have a question for you guys. At this point its just a dream but its a dream ive been building since i got the truck three years ago, so if i have things my way it WILL happen lol. So heres my question, can you run wet nitrous with a twin screw supercharger? im more worried about the fuel itself going through the blower and damaging seals etc. than i am the nitrous itself. id like to run about a 75 shot and maybe push it to 125 or 150 shot for the strip. i have a 5.4
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Old 04-27-2014, 12:34 PM   #323
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Originally Posted by Carcrazygts2 View Post
3" is to big if your using the stock navi intake. My 03 Navi utilizes 2.5" from the factory.
Soo single 2.5"?

Any other suggestions?
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Old 04-27-2014, 12:41 PM   #324
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Soo single 2.5"? Any other suggestions?
Staying with a single? Figured you might go with duals.
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Old 04-27-2014, 12:48 PM   #325
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Staying with a single? Figured you might go with duals.
Thats more money and id rather keep it simple. Aint nothing wrong with single exhaust. Just thought a 3" would flow better.
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Old 04-27-2014, 01:22 PM   #326
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Unless you have a few grand sitting around for the build, its gonna be a while until you can find a lightning s/c if thats the route you want. Youre gonna have to piece it together and basically live on then lightning forums to find the parts you need before they get sold out from under you.

Or buy a whipple set up.

Or buy a donor lightning.

Those are your options lol or you can just build it ready for boost and then throw boost at it later on.
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Build it for boost and run it stock. Then save for the blower. You'll have the same power as stock or a little better until you throw the eaton on it.
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A lightning swap would be a lot cheaper than a Whipple. I did mine with tune for 2500. I did almost steal my blower set up but with the age of these trucks getting up, you could find things cheap.

I did live in the Lightnings boards, but that's not a bad thing, you will learn a lot.

I will have a low mileage ported eaton, ported plenum, and a few other intake parts for sale soon. Also will have injectors for sale too. Putting a Whipple on a HD and will be selling the stock parts.

Wayne
Ok. Build for boost, NA for now. I'm going to research some sizes but will probably look at a 16cc dish for now on the pistons and that should be capable for both setups. Thanks

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What are u guys going to be running for exhaust with the new engines?

Im thinking about a single 3" with a bigger magnaflow muffler with single side exit exhaust behind rear tire. Shiny chrome 4" tip. Think thatll work for an n/a build.
I want pacesetters or OBXs and then a single 2.5" pipe, no cats, XR1, and a resonator.
Or...LTs to 2.25" Duals going into a dual in/dual out muffler with a built in crossover, then dumping lightning style infront of the rear tire.
You 4v people are sticking with your manifolds right?
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Old 04-27-2014, 04:15 PM   #327
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Soo single 2.5"?

Any other suggestions?
I miss read what you were saying. The response in bold is how the would do it.

2.5" From the manifolds/headers to atleast 18" after the y-pipe, 3" from there back is fine. The exhaust has cooled down enough that it wont be effected.

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Thats more money and id rather keep it simple. Aint nothing wrong with single exhaust. Just thought a 3" would flow better.
It does but, but a cammed 5.4 isnt going to move enough air to fill a 3" correctly.

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Ok. Build for boost, NA for now. I'm going to research some sizes but will probably look at a 16cc dish for now on the pistons and that should be capable for both setups. Thanks

I want pacesetters or OBXs and then a single 2.5" pipe, no cats, XR1, and a resonator.
Or...LTs to 2.25" Duals going into a dual in/dual out muffler with a built in crossover, then dumping lightning style infront of the rear tire.
You 4v people are sticking with your manifolds right?
You dont want to run smaller than 2.5" on the primary pipes coming of the headers if you go L/T's. It will boost the bottom end but will start to restrict the engine severely in the mid to upper rpm's. It would be compounded even worse when boost was added.
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Old 04-27-2014, 04:29 PM   #328
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Thats more money and id rather keep it simple. Aint nothing wrong with single exhaust. Just thought a 3" would flow better.
What side collector is on the longtubes you are getting?
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Old 04-27-2014, 04:47 PM   #329
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What side collector is on the longtubes you are getting?
3" collectors but I can get reducers if needed. They are cheap
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Old 04-27-2014, 05:02 PM   #330
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3" collectors but I can get reducers if needed. They are cheap
I honestly don't think think you need to.
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