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Increase in mpg w/ 4.7L TB
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=88&t=79781		 Page 1 of 16
Author:  Gageraid [ Mon Aug 04, 2014 7:25 pm ]
Post subject:  Increase in mpg w/ 4.7L TB
I'm shocked right now. I don't think I've ever seen this kind of mileage before.


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Author:  nFodzy [ Mon Aug 04, 2014 7:29 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Where can i get one?
Author:  Gageraid [ Mon Aug 04, 2014 7:31 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
nFodzy wrote:
Where can i get one?

They're around. Got this from a forum member for cheap.
Author:  TIJKK1220 [ Mon Aug 04, 2014 7:48 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
I'm using one as well and even with two heavy steel bumpers and full skid plates I'm getting at least 20 mpg highway
Author:  DirtyKK [ Mon Aug 04, 2014 8:31 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
what kind of gains did you get? what were you getting prior?
Author:  ajohns1288 [ Mon Aug 04, 2014 8:37 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
This is getting me excited, I just ordered one today. I wonder what you'd get if you ported it out even more.
Author:  At The Helm [ Mon Aug 04, 2014 8:42 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
What's the part number on that? Any specific vehicle with the 4.7?
Author:  Gageraid [ Mon Aug 04, 2014 8:44 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
DirtyKK wrote:
what kind of gains did you get? what were you getting prior?


Keep in mind of my other mods.
Also, this is only my third day of driving it.
This 100 miles you're seeing was all in one trip as well. 80 of those miles were on a 65mph highway, the rest city including traffic and a few full throttle punches.
Stock I was getting 16.5-17, then quickly modded after like 2 months.
Ever since I got A/T tires it dropped to 17 city on a good tank. Highway I was getting 19.
Now, the very first tank with the TB installed I got 20.02mph which is 2 mpg better than usual, nut also 90 percent highway miles.
Author:  Gageraid [ Mon Aug 04, 2014 8:45 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Atthehelm wrote:
What's the part number on that? Any specific vehicle with the 4.7?

I'll see if I can get some info on that. Leaving for work soon, though. I'd have to message the member that sold it to me.
Obviously has to be an electronic throttle body. Also, it only fits if you install it upside down.
Author:  Gageraid [ Mon Aug 04, 2014 8:47 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
ajohns1288 wrote:
This is getting me excited, I just ordered one today. I wonder what you'd get if you ported it out even more.

:POPCORN: I was thinking the same thing. I think member huntb is running the same setup as me. He might have some thoughts about this.
Author:  Gageraid [ Mon Aug 04, 2014 10:17 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Atthehelm wrote:
What's the part number on that? Any specific vehicle with the 4.7?


I got an answer. He said it's off a 2008 Grand Cherokee.
Author:  tjkj2002 [ Mon Aug 04, 2014 10:25 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Gageraid wrote:
DirtyKK wrote:
what kind of gains did you get? what were you getting prior?


Keep in mind of my other mods.
Also, this is only my third day of driving it.
This 100 miles you're seeing was all in one trip as well. 80 of those miles were on a 65mph highway, the rest city including traffic and a few full throttle punches.
Stock I was getting 16.5-17, then quickly modded after like 2 months.
Ever since I got A/T tires it dropped to 17 city on a good tank. Highway I was getting 19.
Now, the very first tank with the TB installed I got 20.02mph which is 2 mpg better than usual, nut also 90 percent highway miles.

Is that hand calculated? Those instant and average mpg #'s are far from being right.
Author:  TIJKK1220 [ Mon Aug 04, 2014 11:20 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
08+ dodge Dakota's are also possible transplants.
Author:  7urtle [ Mon Aug 04, 2014 11:37 pm ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Hmmm.
What year swap does this work on ?
Author:  lfhoward [ Tue Aug 05, 2014 12:51 am ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Subscribed. Very exciting preliminary results! I want to know if the gains in mpg continue in the long run. Sometimes our computerized engines learn things and then compensate.

Also Gage, later on if you feel like satisfying my curiosity, you could try the 4.7 throttle body with the stock tune. I wonder how much of the mpg gains are due to the interaction of the 4.7 TB with your Hypertech tuner, and if there are any gains to be had for those of us without Hypertechs.

Is there a noticeable increase or decrease in power with the 4.7 TB?

Thanks for being on the cutting edge of modded KK engine technology! :frankie:
Author:  Scar0 [ Tue Aug 05, 2014 6:15 am ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Gageraid wrote:
Atthehelm wrote:
What's the part number on that? Any specific vehicle with the 4.7?

I'll see if I can get some info on that. Leaving for work soon, though. I'd have to message the member that sold it to me.
Obviously has to be an electronic throttle body. Also, it only fits if you install it upside down.

Pics of the install please!
Author:  ajohns1288 [ Tue Aug 05, 2014 7:29 am ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Atthehelm wrote:
What's the part number on that? Any specific vehicle with the 4.7?


53032837AB

If your looking for a junkyard pull, look for any 2007.5 4.7L engine or later. You can also look for a 2008-2014 Viper. :twisted:
Author:  Gageraid [ Tue Aug 05, 2014 10:10 am ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
tjkj2002 wrote:
Gageraid wrote:
DirtyKK wrote:
what kind of gains did you get? what were you getting prior?


Keep in mind of my other mods.
Also, this is only my third day of driving it.
This 100 miles you're seeing was all in one trip as well. 80 of those miles were on a 65mph highway, the rest city including traffic and a few full throttle punches.
Stock I was getting 16.5-17, then quickly modded after like 2 months.
Ever since I got A/T tires it dropped to 17 city on a good tank. Highway I was getting 19.
Now, the very first tank with the TB installed I got 20.02mph which is 2 mpg better than usual, nut also 90 percent highway miles.

Is that hand calculated? Those instant and average mpg #'s are far from being right.


The 20.02 is hand calculated.
Yes, I'm aware the ScanGauge is reading about 2mpgs too high or so. Gonna recalculate it over the next few tanks.
The ScanGauge is off because last month I mostly didn't fill the tank every time.
Author:  Gageraid [ Tue Aug 05, 2014 10:12 am ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
Scar0 wrote:
Gageraid wrote:
Atthehelm wrote:
What's the part number on that? Any specific vehicle with the 4.7?

I'll see if I can get some info on that. Leaving for work soon, though. I'd have to message the member that sold it to me.
Obviously has to be an electronic throttle body. Also, it only fits if you install it upside down.

Pics of the install please!


This is the only pic I have right now. Is there a certain one you'd like to see?

Image
Author:  Gageraid [ Tue Aug 05, 2014 10:18 am ]
Post subject:  Re: Increase in mpg w/ 4.7L TB
lfhoward wrote:
Subscribed. Very exciting preliminary results! I want to know if the gains in mpg continue in the long run. Sometimes our computerized engines learn things and then compensate.

Also Gage, later on if you feel like satisfying my curiosity, you could try the 4.7 throttle body with the stock tune. I wonder how much of the mpg gains are due to the interaction of the 4.7 TB with your Hypertech tuner, and if there are any gains to be had for those of us without Hypertechs.

Is there a noticeable increase or decrease in power with the 4.7 TB?

Thanks for being on the cutting edge of modded KK engine technology! :frankie:


I plan on PM'ing you in the near future so we can think of some comparisons we can do again with our ScanGauges. I'll try the stock tune setup in the future, but I doubt I'll tolerate it for long lol. I knew it wouldn't be long till I tried out this mod for myself.
Shifting is way smoother. Lots of improvement in picking up speed. It feels like you're constantly going downhill. Very dramatic improvement in driveability. You can feel it in your foot that you're not mashing the gas.
My friend that came with me for those 100 miles says it sounds like it's taking in more air.
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