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Old October 20th, 2009, 02:04 PM   #1
MiNi Beast
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Default 4.0 to 5.0 Insane Inline

Anyone else read November JP mag about 505 performance stroking out the 4.0 to a 5.0 and a turbo making a inline with 558hp?

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http://www.505performance.com/Home_Page.html
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Old October 20th, 2009, 02:07 PM   #2
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I want to know what it would do without the turbo.
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Old October 20th, 2009, 02:40 PM   #3
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Anyone else read November JP mag about 505 performance stroking out the 4.0 to a 5.0 and a turbo making a inline with 558hp?

Discuss

http://www.505performance.com/Home_Page.html
I didnt read that one. After reading about their kits on their web site, I dont think they have a 4.0 to 5.0 kit. It looks to me that they offer three kits. One for the 242 and 248, one for the 4.7, and one for the AMC 5.0. Unless I missed something Still think the youtube video is sweet though
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Old October 20th, 2009, 03:14 PM   #4
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They still got another article on it yet, maybe be custom but it sound bad ass and they list all the tech info on it thus far.
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Old October 20th, 2009, 03:41 PM   #5
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There's some coin involved ... 4.7L is more reasonable, 5.0 seems like a waste, but don't get me wrong it's pretty slick.
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Old October 20th, 2009, 10:22 PM   #6
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the turbo kit alone is about 5k with the ignition upgrade. That doesn't include the strocker stuff, cam, new head, ect. Probably looking at around 10k to get it the way they have it. I could do a lot more with 10k. It is sweet though.
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Old October 20th, 2009, 10:47 PM   #7
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like silverxj said 4.7 is more reasonable, the 5.0 uses a special offset crank($$$) and chevy flat top pistons, block must also be sonic tested to see if its thick enough to bore it out that much, lots of money is put into a 5.0 but will put out just over 300 horsies naturally aspirated :), best bet is to get a 258 crank and make a 4.5 to a 4.7 stroker that will get you in the neighborhood of 260-270 horsies, love my stroker, burns rubber, and leaves mustang owners in the dust
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Old October 22nd, 2009, 06:15 PM   #8
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The AMC 5.0 is the kit for the 6 the 4.7 says the same thing "4.7 AMC". I'd imagine it's cause the jeep six was designed by AMC but i'm not 100%.
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Old October 22nd, 2009, 06:18 PM   #9
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Why is a turbo even needed for an off-roading application? I can't even see that thing ever getting spooled up for it to actually do something. Seems like it wouldn't be good...as you have traction..then the boost kicks in and whoops...
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Old October 22nd, 2009, 06:40 PM   #10
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I want to know what it would do without the turbo.
x2
Very neat!
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Old October 22nd, 2009, 09:35 PM   #11
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im planning on building a 5.0 stroker for my TJ come this winter/early spring. Should be able to run with the V8's out there :) However the AX-15 might go BOOM on 3k dumps
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Old October 22nd, 2009, 09:43 PM   #12
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Why is a turbo even needed for an off-roading application? I can't even see that thing ever getting spooled up for it to actually do something. Seems like it wouldn't be good...as you have traction..then the boost kicks in and whoops...
gotta be for sand and mud guys
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Old October 22nd, 2009, 09:49 PM   #13
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Why is a turbo even needed for an off-roading application? I can't even see that thing ever getting spooled up for it to actually do something. Seems like it wouldn't be good...as you have traction..then the boost kicks in and whoops...
I always wondered the same thing. Either you run a tiny ass turbo that spools up quick but you don't get much power from (whats the point) or you run a big turbo where you get a crapton of lag and it becomes entirely worthless for an offroad rig.
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Old October 22nd, 2009, 09:56 PM   #14
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well i read somewhere that you could get about 328hp non-turbo....... but dont quote me on that, i think its a waste of money though. i do want a 4.2 however don't that's down the road lol.
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Old October 22nd, 2009, 10:02 PM   #15
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im planning on building a 5.0 stroker for my TJ come this winter/early spring. Should be able to run with the V8's out there :) However the AX-15 might go BOOM on 3k dumps
I hang with the v8's just fine... but, leave it up to you to waste money.
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Old October 22nd, 2009, 10:17 PM   #16
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I have to imagine that motor isn't going to live more than 20-30k miles.
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Old October 23rd, 2009, 11:27 AM   #17
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Turbo's work great for offroad. You just have to build them right. Been running my turbo 4.0 for over 2 years now, on/off-road and towing. The turbo will give you full torque at the bottom end. Mine spools at about 1.5K with no load and 1K under load. Boost is dependent on load of the wheels and when you start to climb stuff (even crawling) you don't need to give more throttle to keep the wheels going, the boost will do the work. Its a different way to drive but it defiantly works. Oh and i'm running 37"s with stock 3.73 gears for awesome highway cruising and still can play off road.

another plus is the turbo gives great back pressure when not spooling to further help the low end torque.

I didn't however spend the $5k on the kit. only about $600 so it makes it worth the money.
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Old October 23rd, 2009, 11:57 AM   #18
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You should help me put one on my 4.0. Is yours a stroker already?
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Old October 23rd, 2009, 12:00 PM   #19
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Turbo's work great for offroad. You just have to build them right. Been running my turbo 4.0 for over 2 years now, on/off-road and towing. The turbo will give you full torque at the bottom end. Mine spools at about 1.5K with no load and 1K under load. Boost is dependent on load of the wheels and when you start to climb stuff (even crawling) you don't need to give more throttle to keep the wheels going, the boost will do the work. Its a different way to drive but it defiantly works. Oh and i'm running 37"s with stock 3.73 gears for awesome highway cruising and still can play off road.

another plus is the turbo gives great back pressure when not spooling to further help the low end torque.

I didn't however spend the $5k on the kit. only about $600 so it makes it worth the money.
What did you do for fuel management?

Do you have a write up on this?
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Old October 24th, 2009, 09:33 PM   #20
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IIRC, Clifford used to sell crate 258's advertised at 300 horse and 350 ft/lbs naturally aspirated for $5k circa 1997.



I would think you'd at least have to be able to match that without too much extra expense if you were running FI.
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