To Turbo or to Supercharge, that is the question.

[Bill G]

Hello to the forum. I bought a 2006 Black Basic H3 with XM Radio back in Oct 06. Have been looking at ways to boost the power a little. I have the forced air mod, and it helped. Researched the turbo mod, but I'm looking for something that is working all the time. There was some chatter that the Turbo may have cooling problems. Looking for anyone's experience with a Turbo or supercharger on the H3. Thanks

Bill / Peyton CO

[f5fstop]

Get a warp drive. Just make sure to beef up the brakes.
Or learn that the "Search function" can be your friend.

[marin8703]

Do both! DO NOW!!!

check this out http://www.elcovaforums.com/forums/s...ad.php?t=25658

hypothetical question at best

[Bill G]

Excellent. So, judging by the comments, I guess no one has experience with either mod on an H3...Bill G

[fourfourto]

You could get one of these.


http://cgi.ebay.com/FLUX-CAPACITOR-Awesome-Back-to-the-Future-Prop_W0QQitemZ230115749944QQihZ013QQcategoryZ60361 QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

[RubHer Yellow Ducky]

The search option is a great thing....

BUT

to cut to the chase

The FUC*ing ENGINE AND DRIVE TRAIN WON'T TAKE THE EXTRA PUNISHMENT of EITHER

OH YEAH

WHAT WARRENTY !!!!!!!!!!!!!

It's a way to create an Exploder

[b1ownh3]

I am new to this forum, so hopefully everyone doesn't mind me jumping in. I am a new H3 owner, as I just purchased a 2007 today. I have to say in the 45 miles I have drove it so far, I am quite happy with it. I bought a manual trans, so I'm sure it is a little more "peppy" than an automatic, but I'm used to Mustangs so I'm definetly not happy. Yet!

Ok, so to the point. My company, www.w2wpowertrain.com, has several supercharger kits they are releasing. One happens to be the I5 kit. You can check out the kit on our website. We have been developing the kit for quite some time now, so we are quite happy with it. I just bought the '07 so that we could update our cal for the new 3.7L engine. We also needed a manual so we would have both calibrations. Our kits are different from other companies, like procharger for example. Since we have a full engineering team that is loaded with OEM experiance, we strive to develop our kits so they are of the highest quality.

I'm planning to start installing the kit on my truck this week. I can post pictures and answer any questions if you all want. Again, being new here I don't want to intrude. I also don't want to sound like I'm a commercial. I just want to pass along any info that might help anyone.

Thanks.

[Demo]

I have to say that isn't a bad way to introduce yourself, just don't get a bad attitude when you start getting serious questions, like others have, and you'll be fine.
I am sure there are a ton of h3'ers that want a magic fix for the power issue (me included). Make it happen and you'll get a lot of customers, but you're gonna have to prove it.

Welcome

[Demo]

Oh, be sure to PM Jason for vendor info, he will respond fairly quickly, as he always has to my PM's.

[b1ownh3]

Ok, thanks. I just don't want people to think I am only here pushing our product. We work with many other companies and test product all the time. I bought this truck personally, and hope to work on customizing it so I plan to ask others questions on what they have done.

I would also like to extend to anyone that would be in the Detroit area to come and test drive one of our vehicles with our Rotrex supercharger kits on them. I'm sure the boss wouldn't mind. LOL.

I'll post pictures as the week goes on, and get some dyno numbers up when I get them.

[stagger_lee]

Honestly I think some of us might consider it, but we just dont have the need or the balls to do it on our own rig without significant data to back up reliability. My main concern would be the front diff. Maybe if we were able to upgrade to an alpha diff and then add boost, but than again dropping $10K in the rig...we might as well just wait for the V8. I welcome the the info, and thanks for doing the work for us! Welcome to the board!

F5. Do we have forged internals or no? Just pistons?

[b1ownh3]

Is there really that much concern over the durability of the driveline? Has anyone from GM ever been on here and shared their thoughts? I have some contacts within Gm I could talk with and get their opinions. Has anyone had problems with breaking the front diff? I'm just not that familiar with the Hummer line, so I don't mean to sound stupid.

We have had one on a colorado for about a year and have beat the heck out of it. No problems yet.

[HummBebe]

I could share my thoughts, but just search "front diff", and you'll find every concern on the drivetrain.

[stagger_lee]

Originally Posted by b1ownh3

Is there really that much concern over the durability of the driveline? Has anyone from GM ever been on here and shared their thoughts? I have some contacts within Gm I could talk with and get their opinions. Has anyone had problems with breaking the front diff? I'm just not that familiar with the Hummer line, so I don't mean to sound stupid.

We have had one on a colorado for about a year and have beat the heck out of it. No problems yet.

Did you see those Moab pics? Yeah there are some loons on here pushing the limits, right Bebes? Aluminum housing on diff seems to flex and hits the gears and makes a mess. My argument before in the other thread was adding that torque and HP to an already weak front end, especially on a trail like the Rubicon where there are boulders and twisted chassis, and Moab where there are step ups, could prove to be a disaster a lot sooner then later. I would mind having a little boost in the dunes though! I can't wait to read about your set up.

"Has anyone from GM ever been on here and shared their thoughts?"

Fortunately for all of us, yes. We have our resident guru, F5fstop.

[b1ownh3]

Thanks for all the info. One question. I tried to read through quite a bit of the discussions on the front diff issues, and if I'm understanding it right the problems usually occur at real low speed. I'm a newbee to offroading, but it seems like most people broke the diff when they were stopped by an object and tried to ease over it. Most of which appears to be at pretty low RPM. Am I correct in this assumption? If so, a supercharger should really affect this, as you would still not be in boost, therefore not adding any power or torque. Someone correct me if I'm misunderstanding the situation that appears to be causing the failures.

Thanks.

[stagger_lee]

Originally Posted by b1ownh3

Thanks for all the info. One question. I tried to read through quite a bit of the discussions on the front diff issues, and if I'm understanding it right the problems usually occur at real low speed. I'm a newbee to offroading, but it seems like most people broke the diff when they were stopped by an object and tried to ease over it. Most of which appears to be at pretty low RPM. Am I correct in this assumption? If so, a supercharger should really affect this, as you would still not be in boost, therefore not adding any power or torque. Someone correct me if I'm misunderstanding the situation that appears to be causing the failures.

Thanks.

You are pretty much correct. Although with the 4.1 and 4.56 gears we can run 2-5 mph and be at 15-2200 Rpms and we would definately be boosting there, right? Thus adding torque to wheels and stress on diff. Does that sound right? I am not familiar how this supercharger works. I assume its belt driven and boosts all the way through the power band. Where does it hit max boost and what is it boosting at, 10 PSI max? I can only attest to muscle cars, but my pops has a blown Dart. My thoughts were this, and the difference in throttle response is night and day now we are blown. Now it is very jumpy, and when rockcrawling we dont want jumpy. We want it to be smooth and slow. Jumpy causes axle hop and breakage. I am simply speculating at this point because I have not been rockcrawling in a rig that was supercharged, just taking my knowledge of both and applying it.

[b1ownh3]

Ok. Step one has just been completed. We have baselined the 2007 manual trans H3. I have attached the dyno sheet. Little depressing, but we have a long ways to go. This is in all time 4 wheel drive, so it is at all the tires. We have an all wheel drive chassis dyno.

[stagger_lee]

At least we have nice even torque distribution through the power curve. Not too impressive though. Thats why we have big gears, offset tthe lack of power.