Anyone done anything performance wise with the 06 GM H3 3.5 Hummer 4 speed auto?
Anyone done anything performance wise with the 06 GM H3 3.5 Hummer 4 speed auto?
Kind of discouraging to think there are none out there...
Not much for the I5 , pretty limited , the P12 PCMs have a few things to tweak , but not a lot , a little motor and trans adjustments .
2005 1500 HD , Custom OS3 SD tune .
2006 Trailblazer
Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .
Looks like HP Tuners may be a better bet for this. Thanks!
Sadly , yes .
Tried for a long time to get the P12 stuff to evolve , but one can't sway the tide alone .
Have only seen the I5 stuff in HPT once and did not notice to much more tuning parameters than EFILive though .
Last edited by Chevy366; January 31st, 2010 at 08:01 AM.
2005 1500 HD , Custom OS3 SD tune .
2006 Trailblazer
Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .
Thats discouraging, I was (halfheartedly) looking at buying HPT to tune P12s. Hopefully Ill get everything together and work on a PCM swap for older TBs and then Ill need P12 support. Still not quite sure how to deal with the 4 or 5 VE tables the P12s have for the VVT...
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
I have an 07 with the 3.7L. I'm got EFI Live mainly for my HD, but I plan on tuning the HUMMER as well. I'm still new to the whole thing right now but I will post things as I figure them out. I asked the same question on Duramaxforum.com and got talked to someone about a trailblazer they did. He said that he added about 50 more miles to a tank of fuel. Figure if I can do the same that will be about 3 more MPG.
WOW I need to proof read.... Screaming babies and message threads don't mix!!!
Or, teach your babies to read the forum threads and ask/answer questions on your behalf... ...and to tune your vehicles, and install mods while you supervise...
dieselz28 welcome to the forum...
Dieselz28, pull the tune on your H3 and Ill give you some pointers. I havent tuned a P12 yet but I can at least give you a hand with the basic things like removing TM and firming the shifts up a little bit.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.