Jeep Hemi Tuners???
04-27-2010, 08:01 PM
#1
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Jeep Hemi Tuners??? I'm buying a jeep with a hemi and i'm wondering if anyone can tune these to get a little more fuel mileage out of it? It's an 2007 if that matters.
04-28-2010, 06:25 AM
#3
I almost bought a hemi jeep and couldn't pull the trigger cause of the crap mileage. Recommend 89 octane and get like 12mpg, I liked the vehicle but the mpg would kill me. Plus my luck with spark plugs and coil packs told me not to buy a motor with 16 spark plugs, lol.
A CAI and catback would give you back some, but then you just keep your foot in it. The predator is a good tool for what it is. But I wouldn't expect good mpg from a jeep even with a tune. If you can deal with the shitty mileage I think they are cool trucks.
If you hold out you can wait for the new jeep coming out this year and get the new v6, that makes like 80hp over the current one and gets decent mileage. Air ride ground control and all kinds of stuff, plus it looks even better inside/out.
A CAI and catback would give you back some, but then you just keep your foot in it. The predator is a good tool for what it is. But I wouldn't expect good mpg from a jeep even with a tune. If you can deal with the shitty mileage I think they are cool trucks.
If you hold out you can wait for the new jeep coming out this year and get the new v6, that makes like 80hp over the current one and gets decent mileage. Air ride ground control and all kinds of stuff, plus it looks even better inside/out.
04-28-2010, 01:25 PM
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I almost bought a hemi jeep and couldn't pull the trigger cause of the crap mileage. Recommend 89 octane and get like 12mpg, I liked the vehicle but the mpg would kill me. Plus my luck with spark plugs and coil packs told me not to buy a motor with 16 spark plugs, lol.
A CAI and catback would give you back some, but then you just keep your foot in it. The predator is a good tool for what it is. But I wouldn't expect good mpg from a jeep even with a tune. If you can deal with the shitty mileage I think they are cool trucks.
If you hold out you can wait for the new jeep coming out this year and get the new v6, that makes like 80hp over the current one and gets decent mileage. Air ride ground control and all kinds of stuff, plus it looks even better inside/out.
A CAI and catback would give you back some, but then you just keep your foot in it. The predator is a good tool for what it is. But I wouldn't expect good mpg from a jeep even with a tune. If you can deal with the shitty mileage I think they are cool trucks.
If you hold out you can wait for the new jeep coming out this year and get the new v6, that makes like 80hp over the current one and gets decent mileage. Air ride ground control and all kinds of stuff, plus it looks even better inside/out.
04-28-2010, 01:38 PM
#5
It's the 5.7 hemi not the 6.1(or is it 6.2?).It gets 15 city 20 highway but i'm buying it from a family member CHEAP so i can't complain. Is there any forums for these vehicles? Fran approximately how many mpg's would I pick up with the diablo? Have you ever heard of the SCT Tuners?
If your getting a good deal though rock on. It will suck for MPG though, You might avg 15 if you drive like grandma. There are TONS of jeep forums all over the place. Make sure you change the diff fluid every 30k too as recommended. In a GC I'd be hard pressed to think a tune would get you much more than 1mpg, but I really don't know for sure.
04-28-2010, 04:27 PM
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Yeah thats the jeep I'm talking about, 5.7 limited.
If your getting a good deal though rock on. It will suck for MPG though, You might avg 15 if you drive like grandma. There are TONS of jeep forums all over the place. Make sure you change the diff fluid every 30k too as recommended. In a GC I'd be hard pressed to think a tune would get you much more than 1mpg, but I really don't know for sure.
If your getting a good deal though rock on. It will suck for MPG though, You might avg 15 if you drive like grandma. There are TONS of jeep forums all over the place. Make sure you change the diff fluid every 30k too as recommended. In a GC I'd be hard pressed to think a tune would get you much more than 1mpg, but I really don't know for sure.
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04-28-2010, 10:04 PM
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04-29-2010, 06:34 AM
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www.nagca.com
www.cherokeeforum.com
www.jeepforum.com
Those hemis are thirsty behind a big awd vehicle. I would have got one but mpg was my number one concern with those. (I drive a lot).
04-29-2010, 01:29 PM
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Cartek Racing (www.cartek.net) has been tuning Mopar/Hemi cars for roughly two full years now with some great success as well. Among the many of them are Bill's heads and cam Magnum SRT-8 running low low 11s and Julian's Challenger R/T 5.7L bolt ons only car is running low 12s but you're seeking increased fuel economy over performance of course which shouldn't be a problem either.
On my Hemi Ram, I used a Superchips Cortex. Amazing. Can do custom tunes but I choose between the Towing, 91 Performance, & MileageXS. I pick up about 10% with the mileage tune. The Performance tune is worth it's weight in gold for how much it helps the trans tuning. 1000000000% better.
They update the tunes online frequently.
