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  1. L

    Who has supercharged a 6.2 ?

    If you can pull your tuning file go ahead and send it to me.
  2. L

    Who has supercharged a 6.2 ?

    Can gaurantee its just going onto PE all the time. Probably at 11 to 1 afr 90% of your driving. Find out if that edelbrock has a bypass. If it doesnt, it may just be in constant boost.
  3. L

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Wiper fluid was just broken line. I used a crappy Chinese replacement wiper arm. You get what you pay for.
  4. L

    6.2 swap thread

    Rear wiper fluid issue was just the crappy chinese replacement wiper arm. The line already split after 3 months.
  5. L

    6.2 swap thread

    My t connectors were already replaced and I pulled them off before I pulled engine, it's not those. I can smell it very clearly by the top radiator hose at the radiator connection. So either the hose is slightly leaking or there is a hairline crack.
  6. L

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Rear wiper spray not spraying, but I can hear the motor. Any ideas?
  7. L

    6.2 swap thread

    Got a couple minor issues going on. Smelling coolant from my upper rad hose connection area. It was smelling before I did the swap, I hope it's not a cracked radiator. It's a mishimoto I bought last year. I added constant tension clamps, but still smell it. My rear washer fluid stopped pumping.
  8. L

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I just put in the bolts, turn motor over, and torque. You can feel the pump bind a bit until its turned over, then it gets smooth.
  9. L

    6.2 swap thread

    I think im good. My regular run to the stores, about 10 miles mixed driving, netted about what I got from the cammed 5.3. It def burns more if you get on it. And my idle is burning a lot more, im gonna clean that up by disabling 02s at idle. Dfco is enabling a lot more and that also made a...
  10. L

    6.2 swap thread

    True, I didn't drive the 5.3 in this frozen weather yet post DOD delete to compare. I'll continue tuning it. If it's still pretty bad, I will run a pseudo lean cruise tune
  11. L

    6.2 swap thread

    Im going based off DIC which could be wrong. But injector data is right, its updated from a 2012 l94 stock tune. Ill do a hand calculation
  12. L

    6.2 swap thread

    Liking the 6.2 a lot so far. Only thing that I don't is just the poor fuel economy, but if I look up EPA estimates for a L92, which is essentially what I have now with DOD gone, it's about what I am getting. About 12/18 is a stock L92, I'm getting around 10.5/16.5. It is 25 degrees out, so I...
  13. L

    Average mpg

    10-12 city is about what I am seeing, I guess that's just what the 6.2 gets when DOD is off if it's doing that on your almost stock ride. About 2 under my 5.3 then. Oh well guess gotta live with it lol.
  14. L

    2012 Yukon XL Denali 6.2L Cam Swap Thread

    Yeah can't really go wrong with that setup + the morel lifters. It's a a set it and forget setup. My 5.3 used the stage 1 version, it ran well and was quiet. Happy to assist.
  15. L

    2012 Yukon XL Denali 6.2L Cam Swap Thread

    Those cams are not ideal for your setup they are .500 lift. Now you could go that route if you just wanna run stock springs. I had to wait 4 weeks for my cam as well, everything is backed up right now. Your springs are overkill for any cam under .600 lift, that's for certain. Though with...
  16. L

    Who has supercharged a 6.2 ?

    Magnusons also have a bypass valve. Can anyone chime in on how their MPG is with their maggies?
  17. L

    6.2 swap thread

    There's a lot of overlap between software and tinkering with cars. You have to have a certain way of thinking to do either of them. Yeah DFCO can really help your city MPG. I can get it to activate when coasting from 3rd gear, but cannot get it to activate in any higher gears, so I will spend...
  18. L

    6.2 swap thread

    Haha yup, since my son was born the car stuff has really slowed down. But I still found a way to stuff the 6.2 in LOL. Once he's a little older, I am going to ramp everything back up again... Definitely some type of 600+ rwhp blower car next. I regret selling the G8, that would have been a...
  19. L

    2012 Yukon XL Denali 6.2L Cam Swap Thread

    Ha, I still have the old videos
  20. L

    2012 Yukon XL Denali 6.2L Cam Swap Thread

    I'd have to agree with thompsoj22 here... I went down a rabbit hole once with Lunati cams. Every cam they sent me made a horrible whining noise. So loud you could hear it over the radio inside the cabin and it was a very high frequency. They basically took no responsibility for it. I posted...
  21. L

    2012 Yukon XL Denali 6.2L Cam Swap Thread

    Yeah that cam is toast.
  22. L

    2012 Yukon Denali Lumbar Support Repair

    Mine has been broken forever and I can't figure out how to get the back plastic seat cover off.
  23. L

    2010 Yukon Denali 6.2 exhaust

    I can't see how a blower will gain MPG towing because if it's in boost, it should be in PE. I'd imagine towing it will be making boost a lot because with heavier throttle input the bypass will close. Now outside of towing, losing 5 mpg likely means the tuner was very aggressive with power...
  24. L

    6.2 swap thread

    A few years ago I did some writeups for HPTuners on how I tune the idle actually. I mainly just do this stuff for my own vehicles because I tend to obsess about things I don't understand, so that leads to days and days of trial and error lol. Right now the DFCO stuff is my new obsession lol...
  25. L

    Who has supercharged a 6.2 ?

    I think if i were gonna supercharge id go this route then.
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