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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Durango air hat on 5.9

Huge Soft top SaleRockridge 4WD IS Taking Zone Offroad Suspension Lift Kits BLACK FRIDAY SPECIALS!! You asked, we deliver!

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Unread 08-08-2012, 11:10 AM   #61
moparrr07
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Quote:
Originally Posted by Texas ZJ1 View Post
More air flow, and then what? You don't have more fuel or a way to exhaust it.
well you do have more fuel, do you think the injectors are maxed out on a stock jeep

all im sayin is going to all the work to cut out the hood to clearence for a durango air hat is pointless, no better than the stock one,

in a case where you have a ported intake and headers, your next step is a throttle body, and why would you put an upgraded throttle body with a stock restrictive air hat?

as towards temperature, yes it is metal, no it doesnt get hot, as in you can touch it without burning yourself as long as you have it routed so the filter takes in flesh air

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Unread 08-08-2012, 11:32 AM   #62
tizzly
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The comp auto adjusts for the air which is marginal at best. If you upgrade the inside larger injectors better everything. That 4 in air hat is awesome for a race motor, thats bout all tho
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Unread 08-08-2012, 12:27 PM   #63
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I install a Spectre air hat and it stays very cool until the engine is shut down and everything under the hood heats up.
From my understanding the only gain will be at WOT where I'm seeing -3in Hg and sometimes -2in Hg inside the intake manifold.



I also have a custom 3" exhaust system which I understand is good for a 700hp engine, and also installed a performance ignition kit.

After spending $1000 for these upgrades, I can't honestly say that I have notice any more performance over the stock setup.
In the next year or two I will be rebuilding the engine and throwing on new heads, new cam, along with a few other items, and then it will all come together to make a difference.
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Unread 08-08-2012, 12:30 PM   #64
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There ya go, thats going to blow you away, get some bad *** power under the hood

Just the top end can get you up over 500hp if done right
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Unread 08-08-2012, 02:39 PM   #65
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Quote:
Originally Posted by moparrr07 View Post
well you do have more fuel, do you think the injectors are maxed out on a stock jeep
Your stock mopar computer won't give you more fuel because you have a different air intake.

Unless you are a magician.

Hunter
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Unread 08-08-2012, 02:43 PM   #66
tizzly
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Quote:
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Your stock mopar computer won't give you more fuel because you have a different air intake.

Unless you are a magician.

Hunter
right- it just keeps it mixed right. the stock ones can be tuned up for a bit more performance through the pcm, not much to be gained from them tho
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Unread 08-08-2012, 03:16 PM   #67
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right- it just keeps it mixed right. the stock ones can be tuned up for a bit more performance through the pcm, not much to be gained from them tho
it does keep it mixed right, you give it more air, it matches with fuel, results you wont feel but it happens
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Unread 08-08-2012, 03:16 PM   #68
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Only with a performance computer not a chip.
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Unread 08-08-2012, 03:40 PM   #69
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well my short term AND long term fuel trim both float right at zero, its say its adding plenty of fuel,
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Unread 08-08-2012, 03:49 PM   #70
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I installed a mini ice maker in my air box so that I get the coldest air possible.
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Unread 08-08-2012, 04:13 PM   #71
Texas ZJ1
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Did you use newb tech on the minifridge? 5hp increase at least.
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Unread 08-08-2012, 04:17 PM   #72
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Quote:
Originally Posted by ELMCZJ95
I installed a mini ice maker in my air box so that I get the coldest air possible.
The Durango SRT airhat with variable flow fuel injectors to include all advertising will net you 87.2 more hp and 90.6 more ftlbs torque. (I read this on JU).
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94 5.9 Laredo 6.5 RE lift with 35 Maxxis Bighorns
and 33 Bridgestone Duelers
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Texas Jeep Owner #6
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602.841.3355

For your performance needs:

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Unread 08-08-2012, 04:20 PM   #73
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Take your throttle body off and bang it with a hammer. The dents create a triple expository intake characteristic (often seen in tornadoes and hurricanes) which allow you to run your engine without any oil, therefore decreasing weight and freeing up about eleventy hundred horsepower at 14 RPMs.
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Unread 08-08-2012, 04:21 PM   #74
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Quote:
Originally Posted by Texas ZJ1 View Post
The Durango SRT airhat with variable flow fuel injectors to include all advertising will net you 87.2 more hp and 90.6 more ftlbs torque. (I read this on JU).
Exactly my point, I don't know why more people aren't doing this!
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Unread 08-08-2012, 04:24 PM   #75
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I also found that using porch screening on the intake hose instead of a K&N flows even better and frees up that space where the filter used to be.

I also have a leprechaun that looks like this inside the TB for that extra get up and go.
picture-5.png  
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