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  #13  
Old 07-19-2013, 08:11 AM
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Re: 2014 3.6L Intake/Exhaust/Chip

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Originally Posted by fastdude007 View Post
I also tried running 91 octane fuel for a month which did not do anything for the performance. However I do feel the difference between 87 octane and 89 octane. 89 octane fuel seems to get me the best performance and fuel economy for my engine.
Wouldn't the compression ratio of the engine dictate what the fuel octane needs to be? Since CAI, cat-back, and throttle body don't modify the internal workings, the fuel required would stay the same. At least, that's how it seems to me. I'm certainly no mechanic.

As I will be traveling a lot for work and putting on a lot of miles, increasing fuel economy is my main goal. The way I understand it, intake and exhaust mods allow the engine to breathe in and out more thoroughly, and thusly allow for the optimal air/fuel mixture to be achieved at more points across the RPM range. More ponies would of course be nice, but I just want to make sure I'm not sacrificing economy for performance.
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  #14  
Old 07-24-2013, 08:14 AM
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Re: 2014 3.6L Intake/Exhaust/Chip

I really feel that with all the modifications my low end power did increase. The drivability improved. While driving the transmission does not keep shifting up and down all the time, it seems that I'm able to cruise on the highway with 70 miles in hour and maintain a gas consumption of about 26 mpg. The very best I ever achieved driving 65 miles in hour with the cruise control set, was 27.5 mpg on a 250 mile round trip. Since I do live close to the mountains I drive through the foothills and mountains. My average elevation is 3200 to 6000 feet. Not sure if a difference in altitude has something to do with gas consumption? Maybe the mods in higher altitudes work better?
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  #15  
Old 09-08-2013, 11:08 PM
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Re: 2014 3.6L Intake/Exhaust/Chip

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Originally Posted by ncuskey View Post
Wouldn't the compression ratio of the engine dictate what the fuel octane needs to be? Since CAI, cat-back, and throttle body don't modify the internal workings, the fuel required would stay the same. At least, that's how it seems to me. I'm certainly no mechanic.

As I will be traveling a lot for work and putting on a lot of miles, increasing fuel economy is my main goal. The way I understand it, intake and exhaust mods allow the engine to breathe in and out more thoroughly, and thusly allow for the optimal air/fuel mixture to be achieved at more points across the RPM range. More ponies would of course be nice, but I just want to make sure I'm not sacrificing economy for performance.
I just installed the Diablo Trinity and downloaded the 91 octane tune, now it really makes a difference, big difference in drivability and low end torque The unit even has a map for fuel economy and a 87 octane map.
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  #16  
Old 09-16-2013, 07:34 AM
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Re: 2014 3.6L Intake/Exhaust/Chip

I assume installing a throttle body voids the warranty? I already dropped in the K&N CAI along with the Magnaflow #16929 catback. I am considering a throttle body by fastman to finish off my performance mods for the time being. 14, V8 BTW.
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  #17  
Old 09-16-2013, 07:53 AM
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Re: 2014 3.6L Intake/Exhaust/Chip

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Originally Posted by 760hacker View Post
I assume installing a throttle body voids the warranty? I already dropped in the K&N CAI along with the Magnaflow #16929 catback. I am considering a throttle body by fastman to finish off my performance mods for the time being. 14, V8 BTW.
fastmans tb's look like factory because they started life as a factory tb, then it gets a bigger bore and a larger throttle plate. unless the dealer physically takes it off and inspects it, they will never know the difference.
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Old 09-16-2013, 08:05 AM
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Re: 2014 3.6L Intake/Exhaust/Chip

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Originally Posted by Strongjeff View Post
fastmans tb's look like factory because they started life as a factory tb, then it gets a bigger bore and a larger throttle plate. unless the dealer physically takes it off and inspects it, they will never know the difference.
I know that, i just wasn't sure if technically it voids the warranty or not. I am going to make the assumption that it does.
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