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...