Read the 08 H3 Alpha's E67 brain

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Read the 08 H3 Alpha's E67 brain

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Hummer >> Brand Reviews >> Drivetrain Area >> PCM & Fuel Systems >> Read the 08 H3 Alpha's E67 brain

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Read the 08 H3 Alpha's E67 brain - 11/29/2007 7:29:52 PM

Patches

Posts: 179
Joined: 10/13/2007
Status: online

I upgraded my EFILive V1 license to the V2 version with the new handheld controller. As I mentioned in a previous post, the new software incorporates a virtual VE table to compensate for the VE coefficients which were a pain to work with in previous versions. The VE table can be modified just like other ECM VE tables (like in my E38 vettes) and EFILive calculates the new coefficients. This means that, basically, the same techniques used to tune earlier PCM's (like the E38) should apply to the E67.

I only had time this evening to upgrade my notebook with the new software and calibrations and then do the V1-->V2 upgrade so I only did a read of the stock tune on the Alpha. Nevertheless, it is exciting how smoothly the entire process went and, of course, to see the stock tune displayed on EFILive. Below is a screenshot of the virtual VE table. As expected, there is the usual conservative tuning present from the General. Understandably, there is a long disclaimer dialogue box that comes up initially when opening this calibration screen warning the user that this is a virtual matrix generated using a polynomial that approximates and smooths the surface.

This is a new tuning learning path to wander down and fill up the the next several winter months. I'll be checking out the rest of the stock calibrations this weekend. The tranny settings are also of interest as I'm interested to see how it differs, if any, from the tranny settings I have in my wife's vette which also runs the 4L60E.

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'08 H3 Alpha - Morrocco/Black, Offroad, Nav

Post #: 1

RE: Read the 08 H3 Alpha's E67 brain - 11/30/2007 7:52:45 AM

Doc Olds

Posts: 3188
Joined: 7/11/2007
From: Boat Town USA (Michigan 48045)
Status: offline

Way to go Patches. I'm diggin it!!! I'd be interested in the spark table, and what does airflow show? When they come out with some performance mods, you could really dial up an in some smokin performance.

BTW I am making some custom intake tubes for the I5, in the next few weeks, starting Saturday. Will be using silicone hump couplers and T Bolts, eventually will lead to an over the hood cool air intake. If you have any interest in sharing some detail pics with me, and some measurements of the Alpha intake run, I might be able to hook you up with the first custom Alpha Air Doc kit.

First we really need K&N or somebody to come up with a gauze or foam filter (I don't fab filters

), but the rest is kid stuff.

(in reply to Patches)

Post #: 2

RE: Read the 08 H3 Alpha's E67 brain - 12/1/2007 6:52:59 AM

Patches

Posts: 179
Joined: 10/13/2007
Status: online

I'll post updates as I dive in. There is quite a bit to go through as there are about 630 calibrations monitored/editted by EFILive.

I am looking forward to adding some upgrades with some extra punch to the Alpha, although I'm remaining realistic about the extent of what should be done to a 4700 lb. SUV. Also, reliability is a primary goal with any mods I make as it's my daily driver. Ohter than that, I'm ready to perk this puppy up.

(in reply to Doc Olds)

Post #: 3