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what does a superchip do?

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Old 04-07-2011, 11:18 AM
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Originally Posted by Monte417
I am by no means savy when it comes to performance but not only are the speedo, gear ratio and tpms adjustments great but I gotta say that tow tune kicks ass. Im running 35s and use that tune with my stock 4:10s and have no desire to regear. My gas mileage has improved as well. An excelent piece of equipment. DO IT
I ran the 87 tune for a while, but recently changed to tow tune. I like it much better!!
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Old 04-07-2011, 11:23 AM
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Thats exactly what i did to. Big difference
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Old 04-07-2011, 11:28 AM
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Do you guys feel more power with tow tune...?
How isw it better than 91..? or different?

Also , i have 33/12.5/17 so i just automatically put it to 33" my speedo is showing 5mph faster than it actually is... should i lower or up the size?
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Old 04-07-2011, 11:31 AM
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Also , i have 33/12.5/17 so i just automatically put it to 33" my speedo is showing 5mph faster than it actually is... should i lower or up the size?
Go outside and measure your tires, like the info from superchips tells you to do. They are probably closer to 32" or a bit less.
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Old 04-07-2011, 11:48 AM
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Originally Posted by nthinuf
Go outside and measure your tires, like the info from superchips tells you to do. They are probably closer to 32" or a bit less.
wow... front ones at 32 and rear at 31.75... wierd...

Thanks though lets see if this works.
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Old 04-07-2011, 12:29 PM
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Originally Posted by TheKid25

I ran the 87 tune for a while, but recently changed to tow tune. I like it much better!!
I'm running 87 tune now. What differences do you see in the tow tune? MPGs similar?
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Old 04-07-2011, 12:32 PM
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Originally Posted by Monte417
I am by no means savy when it comes to performance but not only are the speedo, gear ratio and tpms adjustments great but I gotta say that tow tune kicks ass. Im running 35s and use that tune with my stock 4:10s and have no desire to regear. My gas mileage has improved as well. An excelent piece of equipment. DO IT
Do you have an auto???
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Old 04-07-2011, 03:46 PM
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Originally Posted by gtucker0825
Do you have an auto???
no a 6 speed so i guess that will make a bit of a difference
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Old 04-12-2011, 12:21 PM
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Originally Posted by Matt89
I'm running 87 tune now. What differences do you see in the tow tune? MPGs similar?
Felt a difference in power and doesn't shift out of OD as much. I didn't notice a significant difference in mileage, but I'm not driving my Jeep everyday to work anymore. I never tried the 91 tune.
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Old 04-12-2011, 12:30 PM
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Originally Posted by TheKid25
Felt a difference in power and doesn't shift out of OD as much. I didn't notice a significant difference in mileage, but I'm not driving my Jeep everyday to work anymore. I never tried the 91 tune.
Do you put 87 with the tow tune?
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