Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Engine Performance/Intakes/Exhausts (http://www.jeepgarage.org/f108/)
-   -   Intune DCX and Hemifever Tunin' (http://www.jeepgarage.org/f108/intune-dcx-and-hemifever-tunin-57258.html)

DirtyDuc83 03-26-2013 07:54 PM

Intune DCX and Hemifever Tunin'
 
Hello All,

Thread for my review and progress using the Intune DCX and Hemifever tunes.

First, a review of the equipment:
When looking at the pictures and imagining what this device would feel like I expected a much more substantial device. Something a bit more solid feeling like a smartphone. For close to $500, why shouldn't it feel solid? Well, it doesn't and it feels like a toy. I am worried it will explode if I look at it the wrong way.

Usability:
Pretty simple device, a simple touchscreen interface, plug at the bottom for the OBDII cord, plug at the top for the USB cable. Easy to use as long as you take a minute or two to look at the quick start guide and user manual that shows up in your disc drive when you plug it in to your computer. What it does lack is information advising you'll need to do multiple off/on cycles which is difficult to do with the button start in. After my first attempt, I had to pop the button out to make the process easier.

The Diablo tunes:
87 Octane is all i've used so far. It's advertised to improve driveability, HP and Tq without the need for premium fuel. It claims 18hp and 20tq. I don't think I feel any of that HP and Tq improvement but driveability is much improved. Auto now feels much more like Sport and I haven't particularly felt the urge to spin it in to sport like I normally do every time I start the car. I've yet to determine if this improvement in driveability has any impact on the other selec-terrain modes and haven't found any conclusive evidence either way. The transmission definitely holds gears a bit longer and is far less excited to move up to the next gear prematurely. It doesn't however really solve for the obnoxious lag in down shifts if you need to pass someone.

I haven't run any of the other tunes yet but do plan to run the 91 tune at some point. There isn't 93 octane readily available here so I doubt i'll every load the "Diablo Tune".

Hemifever Tuning:
I haven't had the chance to load these yet as I have a full tank of 87 but plan to fill up with 91 once I get to half a tank, then load the Hemifever 89 tune. I do have to say that the customer service from Sean at Hemifever has been excellent. I placed my order late Friday night, he shipped it early Saturday and I had it on Monday! After loading the 87 tune I sent him my "last tune written" and had the the 89 and 91 tunes in my inbox the very next morning (sent it to him late in the evening the night before). More reviews of Hemifever to come as I get a chance to play with the tunes...

My background with cars and tuning:
I've owned two BMWs prior to the jeep, a 1997 BMW 328i then a 2003 M3. Just basic bolt ons for both...intake, exhaust, rear diff in the 328i. I never ventured in to any software tuning with these as they generally would do absolutely nothing for performance besides improve throttle response and maybe get you a horsepower here or there. FI was really the only way to get any extra power out of those inline 6s, so I didn't bother. So this is new ground for me and i'm pretty excited that tuning can actually net some gains with the Hemi. Currently I just have a Volant intake on the Jeep.

dizz1979 03-27-2013 07:12 AM

Re: Intune DCX and Hemifever Tunin'
 
Quote:

Originally Posted by DirtyDuc83 (Post 789137)
Hello All,

Thread for my review and progress using the Intune DCX and Hemifever tunes.

First, a review of the equipment:
When looking at the pictures and imagining what this device would feel like I expected a much more substantial device. Something a bit more solid feeling like a smartphone. For close to $500, why shouldn't it feel solid? Well, it doesn't and it feels like a toy. I am worried it will explode if I look at it the wrong way.

Usability:
Pretty simple device, a simple touchscreen interface, plug at the bottom for the OBDII cord, plug at the top for the USB cable. Easy to use as long as you take a minute or two to look at the quick start guide and user manual that shows up in your disc drive when you plug it in to your computer. What it does lack is information advising you'll need to do multiple off/on cycles which is difficult to do with the button start in. After my first attempt, I had to pop the button out to make the process easier.

The Diablo tunes:
87 Octane is all i've used so far. It's advertised to improve driveability, HP and Tq without the need for premium fuel. It claims 18hp and 20tq. I don't think I feel any of that HP and Tq improvement but driveability is much improved. Auto now feels much more like Sport and I haven't particularly felt the urge to spin it in to sport like I normally do every time I start the car. I've yet to determine if this improvement in driveability has any impact on the other selec-terrain modes and haven't found any conclusive evidence either way. The transmission definitely holds gears a bit longer and is far less excited to move up to the next gear prematurely. It doesn't however really solve for the obnoxious lag in down shifts if you need to pass someone.

I haven't run any of the other tunes yet but do plan to run the 91 tune at some point. There isn't 93 octane readily available here so I doubt i'll every load the "Diablo Tune".

Hemifever Tuning:
I haven't had the chance to load these yet as I have a full tank of 87 but plan to fill up with 91 once I get to half a tank, then load the Hemifever 89 tune. I do have to say that the customer service from Sean at Hemifever has been excellent. I placed my order late Friday night, he shipped it early Saturday and I had it on Monday! After loading the 87 tune I sent him my "last tune written" and had the the 89 and 91 tunes in my inbox the very next morning (sent it to him late in the evening the night before). More reviews of Hemifever to come as I get a chance to play with the tunes...

My background with cars and tuning:
I've owned two BMWs prior to the jeep, a 1997 BMW 328i then a 2003 M3. Just basic bolt ons for both...intake, exhaust, rear diff in the 328i. I never ventured in to any software tuning with these as they generally would do absolutely nothing for performance besides improve throttle response and maybe get you a horsepower here or there. FI was really the only way to get any extra power out of those inline 6s, so I didn't bother. So this is new ground for me and i'm pretty excited that tuning can actually net some gains with the Hemi. Currently I just have a Volant intake on the Jeep.

From someone who got the Hemifever Tune for his Trinity, I can tell you "ain't seen nothing yet". I have the 89 tune right now and throttle response is instant and and the transmission has ZERO lag. No longer to you have to mash the pedal down and wonder when and if it is going to downshift.

Sean had my tune to me the same day I ordered it. I can't wait to send my data log to get the tune tweaked.

DirtyDuc83 03-27-2013 11:42 AM

Re: Intune DCX and Hemifever Tunin'
 
Quote:

Originally Posted by dizz1979 (Post 789453)
From someone who got the Hemifever Tune for his Trinity, I can tell you "ain't seen nothing yet". I have the 89 tune right now and throttle response is instant and and the transmission has ZERO lag. No longer to you have to mash the pedal down and wonder when and if it is going to downshift.

Sean had my tune to me the same day I ordered it. I can't wait to send my data log to get the tune tweaked.

I'm looking forward to it. I normally work from home but will be heading in to the office today. I plan to burn as much gas as possible to get to half a tank in order to fill up with 91 and load the 89 tune.

dizz1979 03-28-2013 01:18 PM

Re: Intune DCX and Hemifever Tunin'
 
Quote:

Originally Posted by DirtyDuc83 (Post 789625)
I'm looking forward to it. I normally work from home but will be heading in to the office today. I plan to burn as much gas as possible to get to half a tank in order to fill up with 91 and load the 89 tune.

Let us know what you think after you load the tune. I've been praising this tune so much someone asked me if I worked for them haha.

DirtyDuc83 03-29-2013 07:22 PM

Re: Intune DCX and Hemifever Tunin'
 
Quote:

Originally Posted by dizz1979 (Post 790612)
Let us know what you think after you load the tune. I've been praising this tune so much someone asked me if I worked for them haha.

I loaded the Hemifever 89 tune today...but want to give a couple quick updates on my experience with the 87 tune that I missed originally. After mashing around with the 87 tune for the last couple of days trying to get down to half a tank of gas, I figured my mileage would be shot to all hell...Well to my surprise it had actually improved in the last few days! I have been hovering around 11.2 - 11.6 with my 70 city/30 hwy driving mix prior to the tune. When I checked my mpg after hitting the half a tank mark, I was at 11.9 mpg! Not a huge improvement but improvement was not what I was expecting at all since i've been really stepping on it to test out the 87 tune and to hear the sweet roar of my Volant CAI.

I've only driven a short while on the 89 tune and I noticed a couple of differences right away. The Tranny now holds a gear longer after I let off the gas and engine brakes a bit...this is quite opposite of what it was doing stock and with the 87 tune, it would immediately shift up a gear and drop my RPMs. It took a bit of getting used to but the engine braking is a familiar feeling that I loved about driving my prior manual transmission car. This definitely improves the responsiveness as i'm in a better RPM range and reduces the need for the tranny to downshift to get me going. Will keep updating as I get some more time behind the wheel.


All times are GMT -5. The time now is 11:36 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community