I know there are a couple other threads on this, but I didn't want to Hijack them - so I created a new one.
Alot of research has gone into this. This is what I have figured out thus far:
12cw crank (I already have it)
98 4.0L donor (I already have it)
Hesco Head
Diamond Pistons
Eagle Rods
Cam is still open as I might need to go with a custom grind for the app
Avengers charger looks to be a nice unit, although a bit too pricey for me when you have to figure in injection mods.
So...
98+ intake, modded so that a Eaton M90 can be mounted to it.
I need to do some mockup so I can figure out what hood clearance will be, but I want it all to fit under a stock CJ hood.
So for $400 for the charger, $400 for a megasquirt EFI setup and quite a bit of time modding an intake, I should be well under the price of an avenger system including the injection system.
I do have some questions though, mostly geared towards those that have supercharged/turboed strokers.
Is the megasquirt the best option for injection (the only other one I would consider at this point is from Accel)? What kind of compression static/dynamic do you need to stick with? I know the calc spreadsheet on here doesn't take into affect boost, so it's not correct. How much boost can I safely run? And what kind of power can I expect?
Let me know what ya'll think,
Waldo
Supercharged 4.7L
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UncleWally
- Noob

- Posts: 15
- Joined: May 16th, 2009, 12:02 pm
- Vehicle Year: 1984
- Vehicle Make: Jeep
- Vehicle Model: CJ7
- Location: Howard Lake, MN
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Plechtan
- Donator

- Posts: 667
- Joined: August 28th, 2008, 9:00 am
- Stroker Displacement: 5.0L 4x4
- Vehicle Year: 1988
- Vehicle Make: Jeep
- Vehicle Model: Comanche
- Location: Woodstock, IL
Re: Supercharged 4.7L
You should check out turbo tom's build here http://www.jeepstrokers.com/forum/viewt ... ?f=7&t=354 450hp on a 4.0
He used a megasquirt too, it is cheap, and Tom used parts from a motorcraft distributor to convert his jeep distributor to generate the 6 pulses per turn required for the megisquirt.
I went with a Haltech systen on my Bonneville truck. They have a new model that sells for about $800.00, its called the Sprint. If you want timed fuel injection and coil per plug, you will have to move up to the Sport 2000, probably more like $1,500 . but it has advanced features like launch assist that dumps a ton of fuel in and retards the timing so it moves the combustion event more into the exhaust cycle. This causes the turbo so spin up very quickly.
I have attached the specs:
Good Luck!
He used a megasquirt too, it is cheap, and Tom used parts from a motorcraft distributor to convert his jeep distributor to generate the 6 pulses per turn required for the megisquirt.
I went with a Haltech systen on my Bonneville truck. They have a new model that sells for about $800.00, its called the Sprint. If you want timed fuel injection and coil per plug, you will have to move up to the Sport 2000, probably more like $1,500 . but it has advanced features like launch assist that dumps a ton of fuel in and retards the timing so it moves the combustion event more into the exhaust cycle. This causes the turbo so spin up very quickly.
I have attached the specs:
Good Luck!
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Peter Lechtanski
The worlds Fastest Comanche Prroject
The worlds Fastest Comanche Prroject