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Forum: Hummer H3
05-18-2019, 01:21 PM
Replies: 1
Views: 280
Posted By MadMarx

Head work H3

hi everybody.
Has anyone ever tried to do head work for tuning on the H3?
From my views the intake looks great but the outtake is very small and like a bottle neck.

Has anyone tried to enlarge...
Forum: Hummer H3
04-11-2019, 12:42 PM
Replies: 6
Views: 505
Posted By MadMarx

Thank you for this great help!!!!

Thank you for this great help!!!!
Forum: Hummer H3
04-07-2019, 03:49 PM
Replies: 6
Views: 505
Posted By MadMarx

Removing Cylinder head

hi,

I have a leaking head gasket.
I need to remove the head but I don't want to take out the engine from the car.
The cam chain must be removed to pull the head.

Is there a good procedure...
Forum: Hummer H3
08-06-2013, 03:01 AM
Replies: 1
Views: 576
Posted By MadMarx

Video

A little video.
Not as impressive as the ones you have with your landscapes but okay for Europe.

Hummer H3 Bining Offroad Gelšnde - YouTube
Forum: Hummer H3
08-06-2013, 02:55 AM
Replies: 15
Views: 3,028
Posted By MadMarx

I made the sensor eye a little more dark with a...

I made the sensor eye a little more dark with a felt tip to make the lights go on a little earlier so I have lights on at alleys or early evening.
Forum: Hummer H3
07-17-2013, 03:22 PM
Replies: 6
Views: 5,559
Posted By MadMarx

This sounds like a major engine desaster. ...

This sounds like a major engine desaster.
Running out of oil is one of the worst things that could happen.
I suppose that your bearings are run out and maybe the pistons had touched the head.
...
Forum: Hummer H3
05-06-2013, 04:19 PM
Replies: 11
Views: 5,454
Posted By MadMarx

Lost my cap too. No idea how it came off. ...

Lost my cap too.
No idea how it came off.
Could it pop off?
Maybe pressure build up?
Forum: Hummer H3
04-27-2013, 04:59 PM
Replies: 41
Views: 11,574
Posted By MadMarx

I'm too far away from you.

I'm too far away from you.
04-21-2013, 02:00 PM
Replies: 55
Views: 29,036
Posted By MadMarx

I currently have the choice of several cars but...

I currently have the choice of several cars but mostly I use the H3 - 3.5L.
It is comfortable, quick enough (after a little tune), has plenty of space.
I use it more often than my Porsche or my X3...
Forum: Hummer H3
04-21-2013, 01:31 PM
Replies: 41
Views: 11,574
Posted By MadMarx

Hi, a short video of the tuning result. It...

Hi,

a short video of the tuning result. It was taken with normal driving so I don't show the full potential.

Hummer H3 Acceleration 3.5L 5 cyl. - YouTube

I think it is a lot more fun now...
Forum: Hummer H3
04-11-2013, 02:12 AM
Replies: 41
Views: 11,574
Posted By MadMarx

As with all brain surgery - there is always a...

As with all brain surgery - there is always a risk.
As far I've noticed the software has many safety routines to prevent damage.
Yesterday I had to remove the radio fuse to make the flashing going...
Forum: Hummer H3
04-11-2013, 02:10 AM
Replies: 41
Views: 11,574
Posted By MadMarx

As with all brain surgery - there is always a...

As with all brain surgery - there is always a risk.
As far I've noticed the software has many safety routines to prevent damage.
Yesterday I had to remove the radio fuse to make the flashing going...
Forum: Hummer H3
04-10-2013, 02:42 AM
Replies: 41
Views: 11,574
Posted By MadMarx

The software came from HP-Tuners. HPTuners.com...

The software came from HP-Tuners.
HPTuners.com >> Performance At Your Fingertips (http://www.hptuners.com/)

At the moment I'm on 18.8 mpg after adjustment with LPG fuel.
I think on 98 octane...
Forum: Hummer H3
04-08-2013, 02:03 PM
Replies: 41
Views: 11,574
Posted By MadMarx

Hi, I'm new here - first post. I'm...

Hi,

I'm new here - first post.

I'm Chris from Germany.
If you run a H3 3.5L in Europe the power and fuel consumption is quite disappointing.

But there is a help.
Last week I've ordered a...
Showing results 1 to 14 of 14


 
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